1690 lines
59 KiB
PHP
1690 lines
59 KiB
PHP
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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Class for axis handling.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version. This library is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details. You should have received a copy of
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* the GNU Lesser General Public License along with this library; if not, write
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* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Axis
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version CVS: $Id: Axis.php,v 1.35 2006/02/28 22:48:07 nosey Exp $
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* @link http://pear.php.net/package/Image_Graph
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*/
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/**
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* Include file Image/Graph/Plotarea/Element.php
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*/
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require_once 'Image/Graph/Plotarea/Element.php';
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/**
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* Diplays a normal linear axis (either X- or Y-axis).
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Axis
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version Release: 0.7.2
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* @link http://pear.php.net/package/Image_Graph
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*/
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class Image_Graph_Axis extends Image_Graph_Plotarea_Element
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{
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/**
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* The type of the axis, possible values are:
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* <ul>
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* <li>IMAGE_GRAPH_AXIS_X / IMAGE_GRAPH_AXIS_HORIZONTAL
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* <li>IMAGE_GRAPH_AXIS_Y / IMAGE_GRAPH_AXIS_VERTICAL /
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* IMAGE_GRAPH_AXIS_Y_SECONDARY
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* </ul>
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* @var int
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* @access private
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*/
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var $_type;
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/**
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* The minimum value the axis displays
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* @var int
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* @access private
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*/
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var $_minimum = false;
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/**
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* The minimum value the axis has been explicitly set by the user
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* @var bool
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* @access private
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*/
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var $_minimumSet = false;
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/**
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* The maximum value the axis displays
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* @var int
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* @access private
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*/
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var $_maximum = false;
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/**
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* The maximum value the axis has been explicitly set by the user
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* @var bool
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* @access private
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*/
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var $_maximumSet = false;
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/**
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* The value span of the axis.
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* This is primarily included for performance reasons
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* @var double
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* @access private
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*/
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var $_axisSpan = false;
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/**
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* The value span of the axis.
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* This is primarily included for performance reasons
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* @var double
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* @access private
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*/
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var $_axisValueSpan = false;
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/**
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* The axis padding.
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* The index 'low' specifies the padding for the low axis values (when not
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* inverted), i.e. to the left on an x-axis and on the bottom of an y-axis,
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* vice versa for 'high'.
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*
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* Axis padding does not make sense on a normal linear y-axis with a 'y-min'
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* of 0 since this corresponds to displaying a small part of the y-axis
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* below 0!
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*
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* @var array
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* @access private
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*/
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var $_axisPadding = array('low' => 0, 'high' => 0);
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/**
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* The number of "pixels" representing 1 unit on the axis
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*
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* This is primarily included for performance reasons
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* @var double
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* @access private
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*/
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var $_delta = false;
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/**
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* Specify if the axis should label the minimum value
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* @var bool
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* @access private
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*/
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var $_showLabelMinimum = true;
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/**
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* Specify if the axis should label 0 (zero)
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* @var bool
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* @access private
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*/
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var $_showLabelZero = false;
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/**
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* Specify if the axis should label the maximum value
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* @var bool
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* @access private
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*/
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var $_showLabelMaximum = true;
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/**
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* Show arrow heads at the 'end' of the axis, default: false
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* @var bool
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* @access private
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*/
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var $_showArrow = false;
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/**
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* Intersection data of axis
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* @var array
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* @access private
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*/
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var $_intersect = array('value' => 'default', 'axis' => 'default');
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/**
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* The fixed size of the axis (i.e. width for y-axis, height for x-axis)
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* @var mixed
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* @access private
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*/
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var $_fixedSize = false;
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/**
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* The label options
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*
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* Should text be shows, preferences for ticks. The indexes start at level
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* 1, which is chosen for readability
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* @var array
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* @access private
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*/
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var $_labelOptions = array(
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1 => array(
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'interval' => 1,
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'type' => 'auto',
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'tick' => array(
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'start' => -2,
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'end' => 2,
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'color' => false // default color
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),
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'showtext' => true,
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'showoffset' => false,
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'font' => array(),
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'offset' => 0,
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'position' => 'outside',
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)
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);
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/**
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* The labels that are shown.
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*
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* This is used to make values show only once...
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* @access private
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*/
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var $_labelText = array();
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/**
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* A data preprocessor for formatting labels, fx showing dates as a standard
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* date instead of Unix time stamp
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* @var Image_Graph_DatePreProcessor
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* @access private
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* @see Image_Graph_DataPreProcessor
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*/
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var $_dataPreProcessor = null;
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/**
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* Point marked in the axis
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* @var array
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* @access private
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*/
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var $_marks = array();
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/**
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* Specifies whether the values should be 'pushed' by 0.5
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* @var bool
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* @access private
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*/
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var $_pushValues = false;
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/**
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* The title of this axis
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* @var string
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* @access private
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*/
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var $_title = '';
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/**
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* The font used for the title of this axis
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* @var Image_Graph_Font
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* @access private
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*/
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var $_titleFont = false;
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/**
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* Invert the axis (i.e. if an y-axis normally displays minimum values at
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* the bottom, they are not displayed at the top
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* @var bool
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* @access private
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* @since 0.3.0dev3
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*/
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var $_invert = false;
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/**
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* Transpose the axis (i.e. is a normal y-axis transposed, so thats it's not show
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* vertically as normally expected, but instead horizontally)
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* @var bool
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* @access private
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*/
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var $_transpose = false;
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/**
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* Image_Graph_Axis [Constructor].
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* Normally a manual creation should not be necessary, axis are created
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* automatically by the {@link Image_Graph_Plotarea} constructor unless
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* explicitly defined otherwise
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*
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* @param int $type The type (direction) of the Axis, use IMAGE_GRAPH_AXIS_X
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* for an X-axis (default, may be omitted) and IMAGE_GRAPH_AXIS_Y for Y-
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* axis)
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*/
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function Image_Graph_Axis($type = IMAGE_GRAPH_AXIS_X)
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{
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parent::Image_Graph_Element();
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$this->_type = $type;
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$this->_fillStyle = 'black';
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}
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/**
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* Push the values by 0.5 (for bar and step chart)
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*
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* @access private
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*/
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function _pushValues()
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{
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$this->_pushValues = true;
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}
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/**
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* Sets the axis padding for a given position ('low' or 'high')
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* @param string $where The position
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* @param int $value The number of pixels to "pad"
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* @access private
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*/
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function _setAxisPadding($where, $value)
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{
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$this->_axisPadding[$where] = $value;
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}
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/**
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* Gets the font of the title.
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*
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* If not font has been set, the parent font is propagated through it's
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* children.
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*
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* @return array An associated array used for canvas
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* @access private
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*/
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function _getTitleFont()
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{
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if ($this->_titleFont === false) {
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if ($this->_defaultFontOptions !== false) {
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return $this->_defaultFontOptions;
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} else {
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return $this->_getFont();
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}
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} else {
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if (is_object($this->_titleFont)) {
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return $this->_titleFont->_getFont();
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} elseif (is_array($this->_titleFont)) {
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return $this->_getFont($this->_titleFont);
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} elseif (is_int($this->_titleFont)) {
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return $this->_getFont(array('size' => $this->_titleFont));
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}
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}
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return array();
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}
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/**
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* Shows a label for the the specified values.
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*
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* Allowed values are combinations of:
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* <ul>
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* <li>IMAGE_GRAPH_LABEL_MINIMUM
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* <li>IMAGE_GRAPH_LABEL_ZERO
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* <li>IMAGE_GRAPH_LABEL_MAXIMUM
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* </ul>
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* By default none of these are shows on the axis
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*
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* @param int $value The values to show labels for
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*/
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function showLabel($value)
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{
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$this->_showLabelMinimum = ($value & IMAGE_GRAPH_LABEL_MINIMUM);
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$this->_showLabelZero = ($value & IMAGE_GRAPH_LABEL_ZERO);
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$this->_showLabelMaximum = ($value & IMAGE_GRAPH_LABEL_MAXIMUM);
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}
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/**
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* Sets a data preprocessor for formatting the axis labels
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*
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||
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* @param Image_Graph_DataPreprocessor $dataPreProcessor The data preprocessor
|
||
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* @see Image_Graph_DataPreprocessor
|
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*/
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function setDataPreProcessor(& $dataPreProcessor)
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{
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$this->_dataPreProcessor =& $dataPreProcessor;
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}
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|
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/**
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* Gets the minimum value the axis will show
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*
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* @return double The minumum value
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* @access private
|
||
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*/
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function _getMinimum()
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{
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||
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return $this->_minimum;
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}
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||
|
|
|
||
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|
/**
|
||
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* Gets the maximum value the axis will show
|
||
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*
|
||
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* @return double The maximum value
|
||
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* @access private
|
||
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*/
|
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function _getMaximum()
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||
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{
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||
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return $this->_maximum;
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||
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}
|
||
|
|
|
||
|
|
/**
|
||
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* Sets the minimum value the axis will show
|
||
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*
|
||
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* @param double $minimum The minumum value to use on the axis
|
||
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* @access private
|
||
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*/
|
||
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function _setMinimum($minimum)
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||
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{
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if ($this->_minimum === false) {
|
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$this->forceMinimum($minimum, false);
|
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} else {
|
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$this->forceMinimum(min($this->_minimum, $minimum), false);
|
||
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}
|
||
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}
|
||
|
|
|
||
|
|
/**
|
||
|
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* Sets the maximum value the axis will show
|
||
|
|
*
|
||
|
|
* @param double $maximum The maximum value to use on the axis
|
||
|
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* @access private
|
||
|
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*/
|
||
|
|
function _setMaximum($maximum)
|
||
|
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{
|
||
|
|
if ($this->_maximum === false) {
|
||
|
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$this->forceMaximum($maximum, false);
|
||
|
|
} else {
|
||
|
|
$this->forceMaximum(max($this->_maximum, $maximum), false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Forces the minimum value of the axis
|
||
|
|
*
|
||
|
|
* @param double $minimum The minumum value to use on the axis
|
||
|
|
* @param bool $userEnforce This value should not be set, used internally
|
||
|
|
*/
|
||
|
|
function forceMinimum($minimum, $userEnforce = true)
|
||
|
|
{
|
||
|
|
if (($userEnforce) || (!$this->_minimumSet)) {
|
||
|
|
$this->_minimum = $minimum;
|
||
|
|
$this->_minimumSet = $userEnforce;
|
||
|
|
}
|
||
|
|
$this->_calcLabelInterval();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Forces the maximum value of the axis
|
||
|
|
*
|
||
|
|
* @param double $maximum The maximum value to use on the axis
|
||
|
|
* @param bool $userEnforce This value should not be set, used internally
|
||
|
|
*/
|
||
|
|
function forceMaximum($maximum, $userEnforce = true)
|
||
|
|
{
|
||
|
|
if (($userEnforce) || (!$this->_maximumSet)) {
|
||
|
|
$this->_maximum = $maximum;
|
||
|
|
$this->_maximumSet = $userEnforce;
|
||
|
|
}
|
||
|
|
$this->_calcLabelInterval();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Show an arrow head on the 'end' of the axis
|
||
|
|
*/
|
||
|
|
function showArrow()
|
||
|
|
{
|
||
|
|
$this->_showArrow = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Do not show an arrow head on the 'end' of the axis (default)
|
||
|
|
*/
|
||
|
|
function hideArrow()
|
||
|
|
{
|
||
|
|
$this->_showArrow = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the label distance.
|
||
|
|
*
|
||
|
|
* @param int $level The label level to return the distance of
|
||
|
|
* @return int The distance between 2 adjacent labels
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _labelDistance($level = 1)
|
||
|
|
{
|
||
|
|
$l1 = $this->_getNextLabel(false, $level);
|
||
|
|
$l2 = $this->_getNextLabel($l1, $level);;
|
||
|
|
return abs($this->_point($l2) - $this->_point($l1));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets an interval for when labels are shown on the axis.
|
||
|
|
*
|
||
|
|
* By default 'auto' is used, forcing the axis to calculate a approximate
|
||
|
|
* best label interval to be used. Specify an array to use user-defined
|
||
|
|
* values for labels.
|
||
|
|
*
|
||
|
|
* @param mixed $labelInterval The interval with which labels are shown
|
||
|
|
* @param int $level The label level to set the interval on
|
||
|
|
*/
|
||
|
|
function setLabelInterval($labelInterval = 'auto', $level = 1)
|
||
|
|
{
|
||
|
|
if (!isset($this->_labelOptions[$level])) {
|
||
|
|
$this->_labelOptions[$level] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($labelInterval === 'auto') {
|
||
|
|
$this->_labelOptions[$level]['type'] = 'auto';
|
||
|
|
$this->_calcLabelInterval();
|
||
|
|
} else {
|
||
|
|
$this->_labelOptions[$level]['type'] = 'manual';
|
||
|
|
$this->_labelOptions[$level]['interval'] = $labelInterval;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets options for the label at a specific level.
|
||
|
|
*
|
||
|
|
* Possible options are:
|
||
|
|
*
|
||
|
|
* 'showtext' true or false whether label text should be shown or not
|
||
|
|
*
|
||
|
|
* 'showoffset' should the label be shown at an offset, i.e. should the
|
||
|
|
* label be shown at a position so that it does not overlap with prior
|
||
|
|
* levels. Only applies to multilevel labels with text
|
||
|
|
*
|
||
|
|
* 'font' The font options as an associated array
|
||
|
|
*
|
||
|
|
* 'position' The position at which the labels are written ('inside' or
|
||
|
|
* 'outside' the axis). NB! This relative position only applies to the
|
||
|
|
* default location of the axis, i.e. if an x-axis is inverted then
|
||
|
|
* 'outside' still refers to the "left" side of a normal y-axis (since this
|
||
|
|
* is normally 'outside') but the actual output will be labels on the
|
||
|
|
* "inside"!
|
||
|
|
*
|
||
|
|
* 'format' To format the label text according to a sprintf statement
|
||
|
|
*
|
||
|
|
* 'dateformat' To format the label as a date, fx. j. M Y = 29. Jun 2005
|
||
|
|
*
|
||
|
|
* @param string $option The label option name (see detailed description
|
||
|
|
* for possible values)
|
||
|
|
* @param mixed $value The value for the option
|
||
|
|
* @param int $level The label level to set the interval on
|
||
|
|
*/
|
||
|
|
function setLabelOption($option, $value, $level = 1)
|
||
|
|
{
|
||
|
|
if (!isset($this->_labelOptions[$level])) {
|
||
|
|
$this->_labelOptions[$level] = array('type' => 'auto');
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_labelOptions[$level][$option] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets options for the label at a specific level.
|
||
|
|
*
|
||
|
|
* The possible options are specified in {@link Image_Graph_Axis::
|
||
|
|
* setLabelOption()}.
|
||
|
|
*
|
||
|
|
* @param array $options An assciated array with label options
|
||
|
|
* @param int $level The label level to set the interval on
|
||
|
|
*/
|
||
|
|
function setLabelOptions($options, $level = 1)
|
||
|
|
{
|
||
|
|
if (is_array($options)) {
|
||
|
|
if (isset($this->_labelOptions[$level])) {
|
||
|
|
$this->_labelOptions[$level] = array_merge($this->_labelOptions[$level], $options);
|
||
|
|
} else {
|
||
|
|
$this->_labelOptions[$level] = $options;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the title of this axis.
|
||
|
|
*
|
||
|
|
* This is used as an alternative (maybe better) method, than using layout's
|
||
|
|
* for axis-title generation.
|
||
|
|
*
|
||
|
|
* To use the current propagated font, but just set it vertically, simply
|
||
|
|
* pass 'vertical' as second parameter for vertical alignment down-to-up or
|
||
|
|
* 'vertical2' for up-to-down alignment.
|
||
|
|
*
|
||
|
|
* @param string $title The title of this axis
|
||
|
|
* @param Image_Graph_Font $font The font used for the title
|
||
|
|
* @since 0.3.0dev2
|
||
|
|
*/
|
||
|
|
function setTitle($title, $font = false)
|
||
|
|
{
|
||
|
|
$this->_title = $title;
|
||
|
|
if ($font === 'vertical') {
|
||
|
|
$this->_titleFont = array('vertical' => true, 'angle' => 90);
|
||
|
|
} elseif ($font === 'vertical2') {
|
||
|
|
$this->_titleFont = array('vertical' => true, 'angle' => 270);
|
||
|
|
} else {
|
||
|
|
$this->_titleFont =& $font;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets a fixed "size" for the axis.
|
||
|
|
*
|
||
|
|
* If the axis is any type of y-axis the size relates to the width of the
|
||
|
|
* axis, if an x-axis is concerned the size is the height.
|
||
|
|
*
|
||
|
|
* @param int $size The fixed size of the axis
|
||
|
|
* @since 0.3.0dev5
|
||
|
|
*/
|
||
|
|
function setFixedSize($size)
|
||
|
|
{
|
||
|
|
$this->_fixedSize = $size;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Preprocessor for values, ie for using logarithmic axis
|
||
|
|
*
|
||
|
|
* @param double $value The value to preprocess
|
||
|
|
* @return double The preprocessed value
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _value($value)
|
||
|
|
{
|
||
|
|
return $value - $this->_getMinimum() + ($this->_pushValues ? 0.5 : 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Apply the dataset to the axis
|
||
|
|
*
|
||
|
|
* @param Image_Graph_Dataset $dataset The dataset
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _applyDataset(&$dataset)
|
||
|
|
{
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
$this->_setMinimum($dataset->minimumX());
|
||
|
|
$this->_setMaximum($dataset->maximumX());
|
||
|
|
} else {
|
||
|
|
$this->_setMinimum($dataset->minimumY());
|
||
|
|
$this->_setMaximum($dataset->maximumY());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the pixel position represented by a value on the canvas
|
||
|
|
*
|
||
|
|
* @param double $value the value to get the pixel-point for
|
||
|
|
* @return double The pixel position along the axis
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _point($value)
|
||
|
|
{
|
||
|
|
if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
|
||
|
|
(($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
|
||
|
|
{
|
||
|
|
if ($this->_invert) {
|
||
|
|
return max($this->_left, $this->_right - $this->_axisPadding['high'] - $this->_delta * $this->_value($value));
|
||
|
|
} else {
|
||
|
|
return min($this->_right, $this->_left + $this->_axisPadding['low'] + $this->_delta * $this->_value($value));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ($this->_invert) {
|
||
|
|
return min($this->_bottom, $this->_top + $this->_axisPadding['high'] + $this->_delta * $this->_value($value));
|
||
|
|
} else {
|
||
|
|
return max($this->_top, $this->_bottom - $this->_axisPadding['low'] - $this->_delta * $this->_value($value));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the axis intersection pixel position
|
||
|
|
*
|
||
|
|
* This is only to be called prior to output! I.e. between the user
|
||
|
|
* invokation of Image_Graph::done() and any actual output is performed.
|
||
|
|
* This is because it can change the axis range.
|
||
|
|
*
|
||
|
|
* @param double $value the intersection value to get the pixel-point for
|
||
|
|
* @return double The pixel position along the axis
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _intersectPoint($value)
|
||
|
|
{
|
||
|
|
|
||
|
|
if (($value === 'min') || ($value < $this->_getMinimum())) {
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
if ($this->_invert) {
|
||
|
|
return ($this->_transpose ? $this->_top : $this->_right);
|
||
|
|
} else {
|
||
|
|
return ($this->_transpose ? $this->_bottom : $this->_left);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ($this->_invert) {
|
||
|
|
return ($this->_transpose ? $this->_right : $this->_top);
|
||
|
|
} else {
|
||
|
|
return ($this->_transpose ? $this->_left : $this->_bottom);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elseif (($value === 'max') || ($value > $this->_getMaximum())) {
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
if ($this->_invert) {
|
||
|
|
return ($this->_transpose ? $this->_bottom : $this->_left);
|
||
|
|
} else {
|
||
|
|
return ($this->_transpose ? $this->_top : $this->_right);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ($this->_invert) {
|
||
|
|
return ($this->_transpose ? $this->_left : $this->_bottom);
|
||
|
|
} else {
|
||
|
|
return ($this->_transpose ? $this->_right : $this->_top);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->_point($value);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Calculate the delta value (the number of pixels representing one unit
|
||
|
|
* on the axis)
|
||
|
|
*
|
||
|
|
* @return double The label interval
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _calcDelta()
|
||
|
|
{
|
||
|
|
if ($this->_axisValueSpan == 0) {
|
||
|
|
$this->_delta = false;
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
$this->_delta = (($this->_transpose ? $this->height() : $this->width()) - ($this->_axisPadding['low'] + $this->_axisPadding['high'])) / ($this->_axisValueSpan + ($this->_pushValues ? 1 : 0));
|
||
|
|
} else {
|
||
|
|
$this->_delta = (($this->_transpose ? $this->width() : $this->height()) - ($this->_axisPadding['low'] + $this->_axisPadding['high'])) / ($this->_axisValueSpan + ($this->_pushValues ? 1 : 0));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Calculate the label interval
|
||
|
|
*
|
||
|
|
* If explicitly defined this will be calucated to an approximate best.
|
||
|
|
*
|
||
|
|
* @return double The label interval
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _calcLabelInterval()
|
||
|
|
{
|
||
|
|
$min = $this->_getMinimum();
|
||
|
|
$max = $this->_getMaximum();
|
||
|
|
|
||
|
|
$this->_axisValueSpan = $this->_axisSpan = abs($max - $min);
|
||
|
|
|
||
|
|
if ((!empty($min)) && (!empty($max)) && ($min > $max)) {
|
||
|
|
$this->_labelOptions[1]['interval'] = 1;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
$span = 0;
|
||
|
|
foreach($this->_labelOptions as $level => $labelOptions) {
|
||
|
|
if ((!isset($labelOptions['type'])) || ($labelOptions['type'] !== 'auto')) {
|
||
|
|
$span = false;
|
||
|
|
} elseif ($level == 1) {
|
||
|
|
$span = $this->_axisValueSpan;
|
||
|
|
} else {
|
||
|
|
$l1 = $this->_getNextLabel(false, $level - 1);
|
||
|
|
$l2 = $this->_getNextLabel($l1, $level - 1);
|
||
|
|
if ((!is_numeric($l1)) || (!is_numeric($l2))) {
|
||
|
|
$span == false;
|
||
|
|
} else {
|
||
|
|
$span = $l2 - $l1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($span !== false) {
|
||
|
|
$interval = pow(10, floor(log10($span)));
|
||
|
|
|
||
|
|
if ($interval == 0) {
|
||
|
|
$interval = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((($span) / $interval) < 3) {
|
||
|
|
$interval = $interval / 4;
|
||
|
|
} elseif ((($span) / $interval) < 5) {
|
||
|
|
$interval = $interval / 2;
|
||
|
|
} elseif ((($span) / $interval) > 10) {
|
||
|
|
$interval = $interval * 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (($interval -floor($interval) == 0.5) && ($interval != 0.5)) {
|
||
|
|
$interval = floor($interval);
|
||
|
|
}
|
||
|
|
|
||
|
|
// just to be 100% sure that an interval of 0 is not returned some
|
||
|
|
// additional checks are performed
|
||
|
|
if ($interval == 0) {
|
||
|
|
$interval = ($span) / 5;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($interval == 0) {
|
||
|
|
$interval = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_labelOptions[$level]['interval'] = $interval;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get next label point
|
||
|
|
*
|
||
|
|
* @param doubt $currentLabel The current label, if omitted or false, the
|
||
|
|
* first is returned
|
||
|
|
* @param int $level The label level to get the next label from
|
||
|
|
* @return double The next label point
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _getNextLabel($currentLabel = false, $level = 1)
|
||
|
|
{
|
||
|
|
if (!isset($this->_labelOptions[$level])) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_array($this->_labelOptions[$level]['interval'])) {
|
||
|
|
if ($currentLabel === false) {
|
||
|
|
reset($this->_labelOptions[$level]['interval']);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (list(, $label) = each($this->_labelOptions[$level]['interval'])) {
|
||
|
|
return $label;
|
||
|
|
} else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$li = $this->_labelInterval($level);
|
||
|
|
if (($this->_axisSpan == 0) || ($this->_axisValueSpan == 0) ||
|
||
|
|
($li == 0)
|
||
|
|
) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$labelInterval = $this->_axisSpan / ($this->_axisValueSpan / $li);
|
||
|
|
|
||
|
|
if ($labelInterval == 0) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($currentLabel === false) {
|
||
|
|
$label = ((int) ($this->_getMinimum() / $labelInterval)) *
|
||
|
|
$labelInterval - $labelInterval;
|
||
|
|
while ($label < $this->_getMinimum()) {
|
||
|
|
$label += $labelInterval;
|
||
|
|
}
|
||
|
|
return $label;
|
||
|
|
} else {
|
||
|
|
if ($currentLabel + $labelInterval > $this->_getMaximum()) {
|
||
|
|
return false;
|
||
|
|
} else {
|
||
|
|
return $currentLabel + $labelInterval;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the interval with which labels are shown on the axis.
|
||
|
|
*
|
||
|
|
* If explicitly defined this will be calucated to an approximate best.
|
||
|
|
*
|
||
|
|
* @param int $level The label level to get the label interval for
|
||
|
|
* @return double The label interval
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _labelInterval($level = 1)
|
||
|
|
{
|
||
|
|
if ((!isset($this->_labelOptions[$level])) ||
|
||
|
|
(!isset($this->_labelOptions[$level]['interval']))
|
||
|
|
) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return (is_array($this->_labelOptions[$level]['interval'])
|
||
|
|
? 1
|
||
|
|
: $this->_labelOptions[$level]['interval']
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the size in pixels of the axis.
|
||
|
|
*
|
||
|
|
* For an x-axis this is the width of the axis including labels, and for an
|
||
|
|
* y-axis it is the corrresponding height
|
||
|
|
*
|
||
|
|
* @return int The size of the axis
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _size()
|
||
|
|
{
|
||
|
|
if (!$this->_visible) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->_fixedSize !== false) {
|
||
|
|
return $this->_fixedSize;
|
||
|
|
}
|
||
|
|
|
||
|
|
krsort($this->_labelOptions);
|
||
|
|
|
||
|
|
$totalMaxSize = 0;
|
||
|
|
|
||
|
|
foreach ($this->_labelOptions as $level => $labelOptions) {
|
||
|
|
if ((isset($labelOptions['showoffset'])) && ($labelOptions['showoffset'] === true)) {
|
||
|
|
$this->_labelOptions[$level]['offset'] += $totalMaxSize;
|
||
|
|
} elseif (!isset($this->_labelOptions[$level]['offset'])) {
|
||
|
|
$this->_labelOptions[$level]['offset'] = 0;
|
||
|
|
}
|
||
|
|
if (
|
||
|
|
(isset($labelOptions['showtext'])) &&
|
||
|
|
($labelOptions['showtext'] === true) &&
|
||
|
|
(
|
||
|
|
(!isset($labelOptions['position'])) ||
|
||
|
|
($labelOptions['position'] == 'outside')
|
||
|
|
)
|
||
|
|
) {
|
||
|
|
if (isset($labelOptions['font'])) {
|
||
|
|
$font = $this->_getFont($labelOptions['font']);
|
||
|
|
} else {
|
||
|
|
if ($this->_defaultFontOptions !== false) {
|
||
|
|
$font = $this->_defaultFontOptions;
|
||
|
|
} else {
|
||
|
|
$font = $this->_getFont();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_canvas->setFont($font);
|
||
|
|
|
||
|
|
$value = false;
|
||
|
|
$maxSize = 0;
|
||
|
|
while (($value = $this->_getNextLabel($value, $level)) !== false) {
|
||
|
|
if ((abs($value) > 0.0001) && ($value > $this->_getMinimum()) &&
|
||
|
|
($value < $this->_getMaximum()))
|
||
|
|
{
|
||
|
|
if (is_object($this->_dataPreProcessor)) {
|
||
|
|
$labelText = $this->_dataPreProcessor->_process($value);
|
||
|
|
} elseif (isset($labelOptions['format'])) {
|
||
|
|
$labelText = sprintf($labelOptions['format'], $value);
|
||
|
|
} elseif (isset($labelOptions['dateformat'])) {
|
||
|
|
$labelText = date($labelOptions['dateformat'], $value);
|
||
|
|
} else {
|
||
|
|
$labelText = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
|
||
|
|
(($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
|
||
|
|
{
|
||
|
|
$maxSize = max($maxSize, $this->_canvas->textHeight($labelText));
|
||
|
|
} else {
|
||
|
|
$maxSize = max($maxSize, $this->_canvas->textWidth($labelText));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((isset($labelOptions['showoffset'])) && ($labelOptions['showoffset'] === true)) {
|
||
|
|
$totalMaxSize += $maxSize;
|
||
|
|
} else {
|
||
|
|
$totalMaxSize = max($totalMaxSize, $maxSize);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->_title) {
|
||
|
|
$this->_canvas->setFont($this->_getTitleFont());
|
||
|
|
|
||
|
|
if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
|
||
|
|
(($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
|
||
|
|
{
|
||
|
|
$totalMaxSize += $this->_canvas->textHeight($this->_title);
|
||
|
|
} else {
|
||
|
|
$totalMaxSize += $this->_canvas->textWidth($this->_title);
|
||
|
|
}
|
||
|
|
$totalMaxSize += 10;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $totalMaxSize + 3;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds a mark to the axis at the specified value
|
||
|
|
*
|
||
|
|
* @param double $value The value
|
||
|
|
* @param double $value2 The second value (for a ranged mark)
|
||
|
|
*/
|
||
|
|
function addMark($value, $value2 = false, $text = false)
|
||
|
|
{
|
||
|
|
if ($value2 === false) {
|
||
|
|
$this->_marks[] = $value;
|
||
|
|
} else {
|
||
|
|
$this->_marks[] = array($value, $value2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Is the axis numeric or not?
|
||
|
|
*
|
||
|
|
* @return bool True if numeric, false if not
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _isNumeric()
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the major tick appearance.
|
||
|
|
*
|
||
|
|
* The positions are specified in pixels relative to the axis, meaning that
|
||
|
|
* a value of -1 for start will draw the major tick 'line' starting at 1
|
||
|
|
* pixel outside (negative) value the axis (i.e. below an x-axis and to the
|
||
|
|
* left of a normal y-axis).
|
||
|
|
*
|
||
|
|
* @param int $start The start position relative to the axis
|
||
|
|
* @param int $end The end position relative to the axis
|
||
|
|
* @param int $level The label level to set the tick options for
|
||
|
|
* @since 0.3.0dev2
|
||
|
|
*/
|
||
|
|
function setTickOptions($start, $end, $level = 1)
|
||
|
|
{
|
||
|
|
if (!isset($this->_labelOptions[$level])) {
|
||
|
|
$this->_labelOptions[$level] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_labelOptions[$level]['tick'] = array(
|
||
|
|
'start' => $start,
|
||
|
|
'end' => $end
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Invert the axis direction
|
||
|
|
*
|
||
|
|
* If the minimum values are normally displayed fx. at the bottom setting
|
||
|
|
* axis inversion to true, will cause the minimum values to be displayed at
|
||
|
|
* the top and maximum at the bottom.
|
||
|
|
*
|
||
|
|
* @param bool $invert True if the axis is to be inverted, false if not
|
||
|
|
* @since 0.3.0dev3
|
||
|
|
*/
|
||
|
|
function setInverted($invert)
|
||
|
|
{
|
||
|
|
$this->_invert = $invert;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set axis intersection.
|
||
|
|
*
|
||
|
|
* Sets the value at which the axis intersects other axis, fx. at which Y-
|
||
|
|
* value the x-axis intersects the y-axis (normally at 0).
|
||
|
|
*
|
||
|
|
* Possible values are 'default', 'min', 'max' or a number between axis min
|
||
|
|
* and max (the value will automatically be limited to this range).
|
||
|
|
*
|
||
|
|
* For a coordinate system with 2 y-axis, the x-axis can either intersect
|
||
|
|
* the primary or the secondary y-axis. To make the x-axis intersect the
|
||
|
|
* secondary y-axis at a given value pass IMAGE_GRAPH_AXIS_Y_SECONDARY as
|
||
|
|
* second parameter.
|
||
|
|
*
|
||
|
|
* @param mixed $intersection The value at which the axis intersect the
|
||
|
|
* 'other' axis
|
||
|
|
* @param mixed $axis The axis to intersect. Only applies to x-axis with
|
||
|
|
* both a primary and secondary y-axis available.
|
||
|
|
* @since 0.3.0dev2
|
||
|
|
*/
|
||
|
|
function setAxisIntersection($intersection, $axis = 'default')
|
||
|
|
{
|
||
|
|
if ($axis == 'x') {
|
||
|
|
$axis = IMAGE_GRAPH_AXIS_X;
|
||
|
|
} elseif ($axis == 'y') {
|
||
|
|
$axis = IMAGE_GRAPH_AXIS_Y;
|
||
|
|
} elseif ($axis == 'ysec') {
|
||
|
|
$axis = IMAGE_GRAPH_AXIS_Y_SECONDARY;
|
||
|
|
}
|
||
|
|
$this->_intersect = array(
|
||
|
|
'value' => $intersection,
|
||
|
|
'axis' => $axis
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get axis intersection data.
|
||
|
|
*
|
||
|
|
* @return array An array with the axis intersection data.
|
||
|
|
* @since 0.3.0dev2
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _getAxisIntersection()
|
||
|
|
{
|
||
|
|
$value = $this->_intersect['value'];
|
||
|
|
$axis = $this->_intersect['axis'];
|
||
|
|
if (($this->_type == IMAGE_GRAPH_AXIS_Y)
|
||
|
|
|| ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY)
|
||
|
|
) {
|
||
|
|
$axis = IMAGE_GRAPH_AXIS_X;
|
||
|
|
} elseif ($axis == 'default') {
|
||
|
|
$axis = IMAGE_GRAPH_AXIS_Y;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($value === 'default') {
|
||
|
|
switch ($this->_type) {
|
||
|
|
case IMAGE_GRAPH_AXIS_Y:
|
||
|
|
$value = 'min';
|
||
|
|
break;
|
||
|
|
case IMAGE_GRAPH_AXIS_Y_SECONDARY:
|
||
|
|
$value = 'max';
|
||
|
|
break;
|
||
|
|
case IMAGE_GRAPH_AXIS_X:
|
||
|
|
$value = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return array('value' => $value, 'axis' => $axis);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resets the elements
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _reset()
|
||
|
|
{
|
||
|
|
parent::_reset();
|
||
|
|
$this->_labelText = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Output an axis tick mark.
|
||
|
|
*
|
||
|
|
* @param int $value The value to output
|
||
|
|
* @param int $level The label level to draw the tick for
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _drawTick($value, $level = 1)
|
||
|
|
{
|
||
|
|
if (isset($this->_labelOptions[$level])) {
|
||
|
|
$labelOptions = $this->_labelOptions[$level];
|
||
|
|
$labelPosition = $this->_point($value);
|
||
|
|
|
||
|
|
if (isset($labelOptions['offset'])) {
|
||
|
|
$offset = $labelOptions['offset'];
|
||
|
|
} else {
|
||
|
|
$offset = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((isset($labelOptions['showtext'])) && ($labelOptions['showtext'] === true)) {
|
||
|
|
if (is_object($this->_dataPreProcessor)) {
|
||
|
|
$labelText = $this->_dataPreProcessor->_process($value);
|
||
|
|
} elseif (isset($labelOptions['format'])) {
|
||
|
|
$labelText = sprintf($labelOptions['format'], $value);
|
||
|
|
} elseif (isset($labelOptions['dateformat'])) {
|
||
|
|
$labelText = date($labelOptions['dateformat'], $value);
|
||
|
|
} else {
|
||
|
|
$labelText = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!in_array($labelText, $this->_labelText)) {
|
||
|
|
$this->_labelText[] = $labelText;
|
||
|
|
|
||
|
|
if (isset($labelOptions['font'])) {
|
||
|
|
$font = $this->_getFont($labelOptions['font']);
|
||
|
|
} else {
|
||
|
|
if ($this->_defaultFontOptions !== false) {
|
||
|
|
$font = $this->_defaultFontOptions;
|
||
|
|
} else {
|
||
|
|
$font = $this->_getFont();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_canvas->setFont($font);
|
||
|
|
|
||
|
|
if (
|
||
|
|
(isset($labelOptions['position'])) &&
|
||
|
|
($labelOptions['position'] == 'inside')
|
||
|
|
) {
|
||
|
|
$labelInside = true;
|
||
|
|
} else {
|
||
|
|
$labelInside = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
if ($labelInside) {
|
||
|
|
$this->write(
|
||
|
|
$labelPosition,
|
||
|
|
$this->_top - 3 - $offset,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$this->write(
|
||
|
|
$labelPosition,
|
||
|
|
$this->_top + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if ($labelInside) {
|
||
|
|
$this->write(
|
||
|
|
$this->_right + 3 + $offset,
|
||
|
|
$labelPosition,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$this->write(
|
||
|
|
$this->_right - 3 - $offset,
|
||
|
|
$labelPosition,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
if ($labelInside) {
|
||
|
|
$this->write(
|
||
|
|
$labelPosition,
|
||
|
|
$this->_bottom + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$this->write(
|
||
|
|
$labelPosition,
|
||
|
|
$this->_bottom - 3 - $offset,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if ($labelInside) {
|
||
|
|
$this->write(
|
||
|
|
$this->_left - 3 - $offset,
|
||
|
|
$labelPosition,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$this->write(
|
||
|
|
$this->_left + 3 + $offset,
|
||
|
|
$labelPosition,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
if ($labelInside) {
|
||
|
|
$this->write(
|
||
|
|
$this->_right + 3 + $offset,
|
||
|
|
$labelPosition,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$this->write(
|
||
|
|
$this->_right - 3 - $offset,
|
||
|
|
$labelPosition,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if ($labelInside === true) {
|
||
|
|
$this->write(
|
||
|
|
$labelPosition,
|
||
|
|
$this->_top - 3 - $offset,
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$this->write(
|
||
|
|
$labelPosition,
|
||
|
|
$this->_top + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
|
||
|
|
$labelText,
|
||
|
|
IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM,
|
||
|
|
$font
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$tickColor = false;
|
||
|
|
if (isset($this->_labelOptions[$level]['tick'])) {
|
||
|
|
if (isset($this->_labelOptions[$level]['tick']['start'])) {
|
||
|
|
$tickStart = $this->_labelOptions[$level]['tick']['start'];
|
||
|
|
} else {
|
||
|
|
$tickStart = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($this->_labelOptions[$level]['tick']['end'])) {
|
||
|
|
$tickEnd = $this->_labelOptions[$level]['tick']['end'];
|
||
|
|
} else {
|
||
|
|
$tickEnd = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((isset($this->_labelOptions[$level]['tick']['color'])) && ($this->_labelOptions[$level]['tick']['color'] !== false)) {
|
||
|
|
$tickColor = $this->_labelOptions[$level]['tick']['color'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($tickStart === false) {
|
||
|
|
$tickStart = -2;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($tickEnd === false) {
|
||
|
|
$tickEnd = 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($tickColor !== false) {
|
||
|
|
$this->_canvas->setLineColor($tickColor);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$this->_getLineStyle();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
|
||
|
|
if ($tickStart === 'auto') {
|
||
|
|
$tickStart = -$offset;
|
||
|
|
}
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $labelPosition,
|
||
|
|
'y0' => $this->_top + $tickStart,
|
||
|
|
'x1' => $labelPosition,
|
||
|
|
'y1' => $this->_top + $tickEnd
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $this->_right + $tickStart,
|
||
|
|
'y0' => $labelPosition,
|
||
|
|
'x1' => $this->_right + $tickEnd,
|
||
|
|
'y1' => $labelPosition
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
|
||
|
|
if ($tickStart === 'auto') {
|
||
|
|
$tickStart = $offset;
|
||
|
|
}
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $labelPosition,
|
||
|
|
'y0' => $this->_bottom - $tickStart,
|
||
|
|
'x1' => $labelPosition,
|
||
|
|
'y1' => $this->_bottom - $tickEnd
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $this->_left - $tickStart,
|
||
|
|
'y0' => $labelPosition,
|
||
|
|
'x1' => $this->_left - $tickEnd,
|
||
|
|
'y1' => $labelPosition
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ($tickStart === 'auto') {
|
||
|
|
$tickStart = $offset;
|
||
|
|
}
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $this->_right + $tickStart,
|
||
|
|
'y0' => $labelPosition,
|
||
|
|
'x1' => $this->_right + $tickEnd,
|
||
|
|
'y1' => $labelPosition
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $labelPosition,
|
||
|
|
'y0' => $this->_top - $tickStart,
|
||
|
|
'x1' => $labelPosition,
|
||
|
|
'y1' => $this->_top - $tickEnd
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Draws axis lines.
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _drawAxisLines()
|
||
|
|
{
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
$this->_getLineStyle();
|
||
|
|
$this->_getFillStyle();
|
||
|
|
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$data = array(
|
||
|
|
'x0' => $this->_right,
|
||
|
|
'y0' => $this->_top,
|
||
|
|
'x1' => $this->_right,
|
||
|
|
'y1' => $this->_bottom
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$data = array(
|
||
|
|
'x0' => $this->_left,
|
||
|
|
'y0' => $this->_top,
|
||
|
|
'x1' => $this->_right,
|
||
|
|
'y1' => $this->_top
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->_showArrow) {
|
||
|
|
if ($this->_getMaximum() <= 0) {
|
||
|
|
$data['end0'] = 'arrow2';
|
||
|
|
$data['size0'] = 7;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$data['end1'] = 'arrow2';
|
||
|
|
$data['size1'] = 7;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_canvas->line($data);
|
||
|
|
|
||
|
|
if ($this->_title) {
|
||
|
|
if (!$this->_transpose) {
|
||
|
|
$y = $this->_bottom;
|
||
|
|
$x = $this->_left + $this->width() / 2;
|
||
|
|
$this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_BOTTOM, $this->_getTitleFont());
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$y = $this->_top + $this->height() / 2;
|
||
|
|
$x = $this->_left;
|
||
|
|
$this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
|
||
|
|
$this->_getLineStyle();
|
||
|
|
$this->_getFillStyle();
|
||
|
|
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$data = array(
|
||
|
|
'x0' => $this->_left,
|
||
|
|
'y0' => $this->_bottom,
|
||
|
|
'x1' => $this->_right,
|
||
|
|
'y1' => $this->_bottom
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$data = array(
|
||
|
|
'x0' => $this->_left,
|
||
|
|
'y0' => $this->_bottom,
|
||
|
|
'x1' => $this->_left,
|
||
|
|
'y1' => $this->_top
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if ($this->_showArrow) {
|
||
|
|
if ($this->_getMaximum() <= 0) {
|
||
|
|
$data['end0'] = 'arrow2';
|
||
|
|
$data['size0'] = 7;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$data['end1'] = 'arrow2';
|
||
|
|
$data['size1'] = 7;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_canvas->line($data);
|
||
|
|
|
||
|
|
if ($this->_title) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$y = $this->_top;
|
||
|
|
$x = $this->_left + $this->width() / 2;
|
||
|
|
$this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_TOP, $this->_getTitleFont());
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$y = $this->_top + $this->height() / 2;
|
||
|
|
$x = $this->_right;
|
||
|
|
$this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_RIGHT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$this->_getLineStyle();
|
||
|
|
$this->_getFillStyle();
|
||
|
|
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$data = array(
|
||
|
|
'x0' => $this->_left,
|
||
|
|
'y0' => $this->_top,
|
||
|
|
'x1' => $this->_right,
|
||
|
|
'y1' => $this->_top
|
||
|
|
);
|
||
|
|
} else {
|
||
|
|
$data = array(
|
||
|
|
'x0' => $this->_right,
|
||
|
|
'y0' => $this->_bottom,
|
||
|
|
'x1' => $this->_right,
|
||
|
|
'y1' => $this->_top
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if ($this->_showArrow) {
|
||
|
|
if ($this->_getMaximum() <= 0) {
|
||
|
|
$data['end0'] = 'arrow2';
|
||
|
|
$data['size0'] = 7;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$data['end1'] = 'arrow2';
|
||
|
|
$data['size1'] = 7;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_canvas->line($data);
|
||
|
|
|
||
|
|
if ($this->_title) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$y = $this->_bottom;
|
||
|
|
$x = $this->_left + $this->width() / 2;
|
||
|
|
$this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_BOTTOM, $this->_getTitleFont());
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$y = $this->_top + $this->height() / 2;
|
||
|
|
$x = $this->_left;
|
||
|
|
$this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Causes the object to update all sub elements coordinates
|
||
|
|
*
|
||
|
|
* (Image_Graph_Common, does not itself have coordinates, this is basically
|
||
|
|
* an abstract method)
|
||
|
|
*
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _updateCoords()
|
||
|
|
{
|
||
|
|
parent::_updateCoords();
|
||
|
|
$this->_calcDelta();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Output the axis
|
||
|
|
*
|
||
|
|
* @return bool Was the output 'good' (true) or 'bad' (false).
|
||
|
|
* @access private
|
||
|
|
*/
|
||
|
|
function _done()
|
||
|
|
{
|
||
|
|
$this->_canvas->startGroup(get_class($this));
|
||
|
|
|
||
|
|
if (parent::_done() === false) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_drawAxisLines();
|
||
|
|
|
||
|
|
$this->_canvas->startGroup(get_class($this) . '_ticks');
|
||
|
|
ksort($this->_labelOptions);
|
||
|
|
foreach ($this->_labelOptions as $level => $labelOption) {
|
||
|
|
$value = false;
|
||
|
|
while (($value = $this->_getNextLabel($value, $level)) !== false) {
|
||
|
|
if ((((abs($value) > 0.0001) || ($this->_showLabelZero)) &&
|
||
|
|
(($value > $this->_getMinimum()) || ($this->_showLabelMinimum)) &&
|
||
|
|
(($value < $this->_getMaximum()) || ($this->_showLabelMaximum))) &&
|
||
|
|
($value >= $this->_getMinimum()) && ($value <= $this->_getMaximum())
|
||
|
|
) {
|
||
|
|
$this->_drawTick($value, $level);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_canvas->endGroup();
|
||
|
|
|
||
|
|
$tickStart = -3;
|
||
|
|
$tickEnd = 2;
|
||
|
|
|
||
|
|
foreach ($this->_marks as $mark) {
|
||
|
|
if (is_array($mark)) {
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$x0 = $this->_right + $tickStart;
|
||
|
|
$y0 = $this->_point($mark[1]);
|
||
|
|
$x1 = $this->_right + $tickEnd;
|
||
|
|
$y1 = $this->_point($mark[0]);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$x0 = $this->_point($mark[0]);
|
||
|
|
$y0 = $this->_top + $tickStart;
|
||
|
|
$x1 = $this->_point($mark[1]);
|
||
|
|
$y1 = $this->_top + $tickEnd;
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$x0 = $this->_point($mark[0]);
|
||
|
|
$y0 = $this->_top + $tickStart;
|
||
|
|
$x1 = $this->_point($mark[1]);
|
||
|
|
$y1 = $this->_top + $tickEnd;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$x0 = $this->_right + $tickStart;
|
||
|
|
$y0 = $this->_point($mark[1]);
|
||
|
|
$x1 = $this->_right + $tickEnd;
|
||
|
|
$y1 = $this->_point($mark[0]);
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$x0 = $this->_point($mark[0]);
|
||
|
|
$y0 = $this->_bottom + $tickStart;
|
||
|
|
$x1 = $this->_point($mark[1]);
|
||
|
|
$y1 = $this->_bottom + $tickEnd;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$x0 = $this->_left + $tickStart;
|
||
|
|
$y0 = $this->_point($mark[1]);
|
||
|
|
$x1 = $this->_left + $tickEnd;
|
||
|
|
$y1 = $this->_point($mark[0]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_getFillStyle();
|
||
|
|
$this->_getLineStyle();
|
||
|
|
$this->_canvas->rectangle(array('x0' => $x0, 'y0' => $y0, 'x1' => $x1, 'y1' => $y1));
|
||
|
|
} else {
|
||
|
|
if ($this->_type == IMAGE_GRAPH_AXIS_X) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$x0 = $this->_right + 5;
|
||
|
|
$y0 = $this->_point($mark);
|
||
|
|
$x1 = $this->_right + 15;
|
||
|
|
$y1 = $y0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$x0 = $this->_point($mark);
|
||
|
|
$y0 = $this->_top - 5;
|
||
|
|
$x1 = $x0;
|
||
|
|
$y1 = $this->_top - 15;
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$x0 = $this->_point($mark);
|
||
|
|
$y0 = $this->_top - 5;
|
||
|
|
$x1 = $x0;
|
||
|
|
$y1 = $this->_top - 15;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$x0 = $this->_right + 5;
|
||
|
|
$y0 = $this->_point($mark);
|
||
|
|
$x1 = $this->_right + 15;
|
||
|
|
$y1 = $y0;
|
||
|
|
}
|
||
|
|
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
|
||
|
|
if ($this->_transpose) {
|
||
|
|
$x0 = $this->_point($mark);
|
||
|
|
$y0 = $this->_bottom + 5;
|
||
|
|
$x1 = $x0;
|
||
|
|
$y1 = $this->_bottom + 15;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$x0 = $this->_left - 5;
|
||
|
|
$y0 = $this->_point($mark);
|
||
|
|
$x1 = $this->_left - 15;
|
||
|
|
$y1 = $y0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_getFillStyle();
|
||
|
|
$this->_getLineStyle();
|
||
|
|
$this->_canvas->line(
|
||
|
|
array(
|
||
|
|
'x0' => $x0,
|
||
|
|
'y0' => $y0,
|
||
|
|
'x1' => $x1,
|
||
|
|
'y1' => $y1,
|
||
|
|
'end0' => 'arrow2',
|
||
|
|
'size0' => 5
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$this->_canvas->endGroup();
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|