868 lines
35 KiB
PHP
868 lines
35 KiB
PHP
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<?php
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/*
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pSpring - class to draw spring graphs
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Version : 2.1.0
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Made by : Jean-Damien POGOLOTTI
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Last Update : 26/01/11
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This file can be distributed under the license you can find at :
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http://www.pchart.net/license
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You can find the whole class documentation on the pChart web site.
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*/
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define("NODE_TYPE_FREE" , 690001);
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define("NODE_TYPE_CENTRAL" , 690002);
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define("NODE_SHAPE_CIRCLE" , 690011);
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define("NODE_SHAPE_TRIANGLE" , 690012);
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define("NODE_SHAPE_SQUARE" , 690013);
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define("ALGORITHM_RANDOM" , 690021);
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define("ALGORITHM_WEIGHTED" , 690022);
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define("ALGORITHM_CIRCULAR" , 690023);
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define("ALGORITHM_CENTRAL" , 690024);
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define("LABEL_CLASSIC" , 690031);
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define("LABEL_LIGHT" , 690032);
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/* pSpring class definition */
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class pSpring
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{
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var $History;
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var $pChartObject;
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var $Data;
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var $Links;
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var $X1;
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var $Y1;
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var $X2;
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var $Y2;
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var $AutoComputeFreeZone;
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var $Labels;
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/* Class creator */
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function pSpring()
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{
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/* Initialise data arrays */
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$this->Data = "";
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$this->Links = "";
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/* Set nodes defaults */
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$this->Default["R"] = 255;
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$this->Default["G"] = 255;
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$this->Default["B"] = 255;
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$this->Default["Alpha"] = 100;
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$this->Default["BorderR"] = 0;
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$this->Default["BorderG"] = 0;
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$this->Default["BorderB"] = 0;
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$this->Default["BorderAlpha"] = 100;
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$this->Default["Surrounding"] = NULL;
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$this->Default["BackgroundR"] = 255;
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$this->Default["BackgroundG"] = 255;
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$this->Default["BackgroundB"] = 255;
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$this->Default["BackgroundAlpha"] = 0;
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$this->Default["Force"] = 1;
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$this->Default["NodeType"] = NODE_TYPE_FREE;
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$this->Default["Size"] = 5;
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$this->Default["Shape"] = NODE_SHAPE_CIRCLE;
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$this->Default["FreeZone"] = 40;
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$this->Default["LinkR"] = 0;
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$this->Default["LinkG"] = 0;
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$this->Default["LinkB"] = 0;
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$this->Default["LinkAlpha"] = 0;
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$this->Labels["Type"] = LABEL_CLASSIC;
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$this->Labels["R"] = 0;
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$this->Labels["G"] = 0;
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$this->Labels["B"] = 0;
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$this->Labels["Alpha"] = 100;
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$this->AutoComputeFreeZone = FALSE;
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}
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/* Set default links options */
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function setLinkDefaults($Settings="")
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{
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if ( isset($Settings["R"]) ) { $this->Default["LinkR"] = $Settings["R"]; }
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if ( isset($Settings["G"]) ) { $this->Default["LinkG"] = $Settings["G"]; }
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if ( isset($Settings["B"]) ) { $this->Default["LinkB"] = $Settings["B"]; }
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if ( isset($Settings["Alpha"]) ) { $this->Default["LinkAlpha"] = $Settings["Alpha"]; }
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}
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/* Set default links options */
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function setLabelsSettings($Settings="")
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{
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if ( isset($Settings["Type"]) ) { $this->Labels["Type"] = $Settings["Type"]; }
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if ( isset($Settings["R"]) ) { $this->Labels["R"] = $Settings["R"]; }
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if ( isset($Settings["G"]) ) { $this->Labels["G"] = $Settings["G"]; }
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if ( isset($Settings["B"]) ) { $this->Labels["B"] = $Settings["B"]; }
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if ( isset($Settings["Alpha"]) ) { $this->Labels["Alpha"] = $Settings["Alpha"]; }
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}
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/* Auto compute the FreeZone size based on the number of connections */
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function autoFreeZone()
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{
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/* Check connections reciprocity */
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foreach($this->Data as $Key => $Settings)
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{
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if ( isset($Settings["Connections"]) )
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{ $this->Data[$Key]["FreeZone"] = count($Settings["Connections"])*10 + 20; }
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else
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{ $this->Data[$Key]["FreeZone"] = 20; }
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}
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}
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/* Set link properties */
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function linkProperties($FromNode,$ToNode,$Settings)
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{
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if ( !isset($this->Data[$FromNode]) ) { return(0); }
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if ( !isset($this->Data[$ToNode]) ) { return(0); }
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$R = isset($Settings["R"]) ? $Settings["R"] : 0;
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$G = isset($Settings["G"]) ? $Settings["G"] : 0;
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$B = isset($Settings["B"]) ? $Settings["B"] : 0;
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$Alpha = isset($Settings["Alpha"]) ? $Settings["Alpha"] : 100;
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$Name = isset($Settings["Name"]) ? $Settings["Name"] : NULL;
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$Ticks = isset($Settings["Ticks"]) ? $Settings["Ticks"] : NULL;
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$this->Links[$FromNode][$ToNode]["R"] = $R; $this->Links[$ToNode][$FromNode]["R"] = $R;
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$this->Links[$FromNode][$ToNode]["G"] = $G; $this->Links[$ToNode][$FromNode]["G"] = $G;
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$this->Links[$FromNode][$ToNode]["B"] = $B; $this->Links[$ToNode][$FromNode]["B"] = $B;
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$this->Links[$FromNode][$ToNode]["Alpha"] = $Alpha; $this->Links[$ToNode][$FromNode]["Alpha"] = $Alpha;
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$this->Links[$FromNode][$ToNode]["Name"] = $Name; $this->Links[$ToNode][$FromNode]["Name"] = $Name;
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$this->Links[$FromNode][$ToNode]["Ticks"] = $Ticks; $this->Links[$ToNode][$FromNode]["Ticks"] = $Ticks;
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}
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function setNodeDefaults($Settings="")
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{
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if ( isset($Settings["R"]) ) { $this->Default["R"] = $Settings["R"]; }
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if ( isset($Settings["G"]) ) { $this->Default["G"] = $Settings["G"]; }
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if ( isset($Settings["B"]) ) { $this->Default["B"] = $Settings["B"]; }
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if ( isset($Settings["Alpha"]) ) { $this->Default["Alpha"] = $Settings["Alpha"]; }
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if ( isset($Settings["BorderR"]) ) { $this->Default["BorderR"] = $Settings["BorderR"]; }
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if ( isset($Settings["BorderG"]) ) { $this->Default["BorderG"] = $Settings["BorderG"]; }
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if ( isset($Settings["BorderB"]) ) { $this->Default["BorderB"] = $Settings["BorderB"]; }
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if ( isset($Settings["BorderAlpha"]) ) { $this->Default["BorderAlpha"] = $Settings["BorderAlpha"]; }
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if ( isset($Settings["Surrounding"]) ) { $this->Default["Surrounding"] = $Settings["Surrounding"]; }
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if ( isset($Settings["BackgroundR"]) ) { $this->Default["BackgroundR"] = $Settings["BackgroundR"]; }
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if ( isset($Settings["BackgroundG"]) ) { $this->Default["BackgroundG"] = $Settings["BackgroundG"]; }
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if ( isset($Settings["BackgroundB"]) ) { $this->Default["BackgroundB"] = $Settings["BackgroundB"]; }
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if ( isset($Settings["BackgroundAlpha"]) ) { $this->Default["BackgroundAlpha"] = $Settings["BackgroundAlpha"]; }
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if ( isset($Settings["NodeType"]) ) { $this->Default["NodeType"] = $Settings["NodeType"]; }
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if ( isset($Settings["Size"]) ) { $this->Default["Size"] = $Settings["Size"]; }
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if ( isset($Settings["Shape"]) ) { $this->Default["Shape"] = $Settings["Shape"]; }
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if ( isset($Settings["FreeZone"]) ) { $this->Default["FreeZone"] = $Settings["FreeZone"]; }
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}
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/* Add a node */
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function addNode($NodeID,$Settings="")
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{
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/* if the node already exists, ignore */
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if (isset($this->Data[$NodeID])) { return(0); }
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$Name = isset($Settings["Name"]) ? $Settings["Name"] : "Node ".$NodeID;
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$Connections = isset($Settings["Connections"]) ? $Settings["Connections"] : NULL;
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$R = isset($Settings["R"]) ? $Settings["R"] : $this->Default["R"];
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$G = isset($Settings["G"]) ? $Settings["G"] : $this->Default["G"];
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$B = isset($Settings["B"]) ? $Settings["B"] : $this->Default["B"];
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$Alpha = isset($Settings["Alpha"]) ? $Settings["Alpha"] : $this->Default["Alpha"];
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$BorderR = isset($Settings["BorderR"]) ? $Settings["BorderR"] : $this->Default["BorderR"];
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$BorderG = isset($Settings["BorderG"]) ? $Settings["BorderG"] : $this->Default["BorderG"];
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$BorderB = isset($Settings["BorderB"]) ? $Settings["BorderB"] : $this->Default["BorderB"];
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$BorderAlpha = isset($Settings["BorderAlpha"]) ? $Settings["BorderAlpha"] : $this->Default["BorderAlpha"];
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$Surrounding = isset($Settings["Surrounding"]) ? $Settings["Surrounding"] : $this->Default["Surrounding"];
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$BackgroundR = isset($Settings["BackgroundR"]) ? $Settings["BackgroundR"] : $this->Default["BackgroundR"];
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$BackgroundG = isset($Settings["BackgroundG"]) ? $Settings["BackgroundG"] : $this->Default["BackgroundG"];
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$BackgroundB = isset($Settings["BackgroundB"]) ? $Settings["BackgroundB"] : $this->Default["BackgroundB"];
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$BackgroundAlpha = isset($Settings["BackgroundAlpha"]) ? $Settings["BackgroundAlpha"] : $this->Default["BackgroundAlpha"];
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$Force = isset($Settings["Force"]) ? $Settings["Force"] : $this->Default["Force"];
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$NodeType = isset($Settings["NodeType"]) ? $Settings["NodeType"] : $this->Default["NodeType"];
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$Size = isset($Settings["Size"]) ? $Settings["Size"] : $this->Default["Size"];
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$Shape = isset($Settings["Shape"]) ? $Settings["Shape"] : $this->Default["Shape"];
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$FreeZone = isset($Settings["FreeZone"]) ? $Settings["FreeZone"] : $this->Default["FreeZone"];
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if ( $Surrounding != NULL ) { $BorderR = $R + $Surrounding; $BorderG = $G + $Surrounding; $BorderB = $B + $Surrounding; }
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$this->Data[$NodeID]["R"] = $R; $this->Data[$NodeID]["G"] = $G; $this->Data[$NodeID]["B"] = $B; $this->Data[$NodeID]["Alpha"] = $Alpha;
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$this->Data[$NodeID]["BorderR"] = $BorderR; $this->Data[$NodeID]["BorderG"] = $BorderG; $this->Data[$NodeID]["BorderB"] = $BorderB; $this->Data[$NodeID]["BorderAlpha"] = $BorderAlpha;
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$this->Data[$NodeID]["BackgroundR"] = $BackgroundR; $this->Data[$NodeID]["BackgroundG"] = $BackgroundG; $this->Data[$NodeID]["BackgroundB"] = $BackgroundB; $this->Data[$NodeID]["BackgroundAlpha"] = $BackgroundAlpha;
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$this->Data[$NodeID]["Name"] = $Name;
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$this->Data[$NodeID]["Force"] = $Force;
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$this->Data[$NodeID]["Type"] = $NodeType;
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$this->Data[$NodeID]["Size"] = $Size;
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$this->Data[$NodeID]["Shape"] = $Shape;
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$this->Data[$NodeID]["FreeZone"] = $FreeZone;
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if ( $Connections != NULL )
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{
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if ( is_array($Connections ) )
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{
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foreach($Connections as $Key => $Value)
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$this->Data[$NodeID]["Connections"][] = $Value;
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}
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else
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$this->Data[$NodeID]["Connections"][] = $Connections;
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}
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}
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/* Set color attribute for a list of nodes */
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function setNodesColor($Nodes,$Settings="")
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{
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if ( is_array($Nodes) )
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{
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foreach ($Nodes as $Key => $NodeID)
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{
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if (isset($this->Data[$NodeID]) )
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{
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if ( isset($Settings["R"]) ) { $this->Data[$NodeID]["R"] = $Settings["R"]; }
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if ( isset($Settings["G"]) ) { $this->Data[$NodeID]["G"] = $Settings["G"]; }
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if ( isset($Settings["B"]) ) { $this->Data[$NodeID]["B"] = $Settings["B"]; }
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if ( isset($Settings["Alpha"]) ) { $this->Data[$NodeID]["Alpha"] = $Settings["Alpha"]; }
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if ( isset($Settings["BorderR"]) ) { $this->Data[$NodeID]["BorderR"] = $Settings["BorderR"]; }
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if ( isset($Settings["BorderG"]) ) { $this->Data[$NodeID]["BorderG"] = $Settings["BorderG"]; }
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if ( isset($Settings["BorderB"]) ) { $this->Data[$NodeID]["BorderB"] = $Settings["BorderB"]; }
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if ( isset($Settings["BorderAlpha"]) ) { $this->Data[$NodeID]["BorderAlpha"] = $Settings["BorderAlpha"]; }
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if ( isset($Settings["Surrounding"]) ) { $this->Data[$NodeID]["BorderR"] = $this->Data[$NodeID]["R"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderG"] = $this->Data[$NodeID]["G"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderB"] = $this->Data[$NodeID]["B"] + $Settings["Surrounding"]; }
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}
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}
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}
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else
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{
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if ( isset($Settings["R"]) ) { $this->Data[$Nodes]["R"] = $Settings["R"]; }
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if ( isset($Settings["G"]) ) { $this->Data[$Nodes]["G"] = $Settings["G"]; }
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if ( isset($Settings["B"]) ) { $this->Data[$Nodes]["B"] = $Settings["B"]; }
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if ( isset($Settings["Alpha"]) ) { $this->Data[$Nodes]["Alpha"] = $Settings["Alpha"]; }
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if ( isset($Settings["BorderR"]) ) { $this->Data[$Nodes]["BorderR"] = $Settings["BorderR"]; }
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if ( isset($Settings["BorderG"]) ) { $this->Data[$Nodes]["BorderG"] = $Settings["BorderG"]; }
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if ( isset($Settings["BorderB"]) ) { $this->Data[$Nodes]["BorderB"] = $Settings["BorderB"]; }
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if ( isset($Settings["BorderAlpha"]) ) { $this->Data[$Nodes]["BorderAlpha"] = $Settings["BorderAlpha"]; }
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if ( isset($Settings["Surrounding"]) ) { $this->Data[$Nodes]["BorderR"] = $this->Data[$NodeID]["R"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderG"] = $this->Data[$NodeID]["G"] + $Settings["Surrounding"]; $this->Data[$NodeID]["BorderB"] = $this->Data[$NodeID]["B"] + $Settings["Surrounding"]; }
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}
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}
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/* Returns all the nodes details */
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function dumpNodes()
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{ return($this->Data); }
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/* Check if a connection exists and create it if required */
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function checkConnection($SourceID, $TargetID)
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{
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if ( isset($this->Data[$SourceID]["Connections"]) )
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{
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foreach ($this->Data[$SourceID]["Connections"] as $Key => $ConnectionID)
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{ if ( $TargetID == $ConnectionID ) { return(TRUE); } }
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}
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$this->Data[$SourceID]["Connections"][] = $TargetID;
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}
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/* Get the median linked nodes position */
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function getMedianOffset($Key,$X,$Y)
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{
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$Cpt = 1;
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if ( isset($this->Data[$Key]["Connections"]) )
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{
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foreach($this->Data[$Key]["Connections"] as $ID => $NodeID)
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{
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if ( isset($this->Data[$NodeID]["X"]) && isset($this->Data[$NodeID]["Y"]) )
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{
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$X = $X + $this->Data[$NodeID]["X"];
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$Y = $Y + $this->Data[$NodeID]["Y"];
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$Cpt++;
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}
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}
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}
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return(array("X"=>$X/$Cpt,"Y"=>$Y/$Cpt));
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}
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/* Return the ID of the attached partner with the biggest weight */
|
||
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function getBiggestPartner($Key)
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{
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if ( !isset($this->Data[$Key]["Connections"]) ) { return(""); }
|
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|
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$MaxWeight = 0; $Result = "";
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foreach($this->Data[$Key]["Connections"] as $Key => $PeerID)
|
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{
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||
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if ( $this->Data[$PeerID]["Weight"] > $MaxWeight )
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||
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{ $MaxWeight = $this->Data[$PeerID]["Weight"]; $Result = $PeerID; }
|
||
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}
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return($Result);
|
||
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}
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||
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|
||
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/* Do the initial node positions computing pass */
|
||
|
|
function firstPass($Algorithm)
|
||
|
|
{
|
||
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|
$CenterX = ($this->X2 - $this->X1) / 2 + $this->X1;
|
||
|
|
$CenterY = ($this->Y2 - $this->Y1) / 2 + $this->Y1;
|
||
|
|
|
||
|
|
/* Check connections reciprocity */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{
|
||
|
|
foreach($Settings["Connections"] as $ID => $ConnectionID)
|
||
|
|
$this->checkConnection($ConnectionID,$Key);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $this->AutoComputeFreeZone ) { $this->autoFreeZone(); }
|
||
|
|
|
||
|
|
/* Get the max number of connections */
|
||
|
|
$MaxConnections = 0;
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{ if ( isset($Settings["Connections"]) ) { if ( $MaxConnections < count($Settings["Connections"] ) ) { $MaxConnections = count($Settings["Connections"]); } } }
|
||
|
|
|
||
|
|
if ( $Algorithm == ALGORITHM_WEIGHTED )
|
||
|
|
{
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_FREE )
|
||
|
|
{
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{ $Connections = count($Settings["Connections"]); }
|
||
|
|
else
|
||
|
|
{ $Connections = 0; }
|
||
|
|
|
||
|
|
$Ring = $MaxConnections - $Connections;
|
||
|
|
$Angle = rand(0,360);
|
||
|
|
|
||
|
|
$this->Data[$Key]["X"] = cos(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterX;
|
||
|
|
$this->Data[$Key]["Y"] = sin(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterY;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif ( $Algorithm == ALGORITHM_CENTRAL )
|
||
|
|
{
|
||
|
|
/* Put a weight on each nodes */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
$this->Data[$Key]["Weight"] = count($Settings["Connections"]);
|
||
|
|
else
|
||
|
|
$this->Data[$Key]["Weight"] = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
$MaxConnections = $MaxConnections + 1;
|
||
|
|
for($i=$MaxConnections;$i>=0;$i--)
|
||
|
|
{
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_FREE )
|
||
|
|
{
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{ $Connections = count($Settings["Connections"]); }
|
||
|
|
else
|
||
|
|
{ $Connections = 0; }
|
||
|
|
|
||
|
|
if ( $Connections == $i )
|
||
|
|
{
|
||
|
|
$BiggestPartner = $this->getBiggestPartner($Key);
|
||
|
|
if ( $BiggestPartner != "" )
|
||
|
|
{
|
||
|
|
$Ring = $this->Data[$BiggestPartner]["FreeZone"];
|
||
|
|
$Weight = $this->Data[$BiggestPartner]["Weight"];
|
||
|
|
$AngleDivision = 360 / $this->Data[$BiggestPartner]["Weight"];
|
||
|
|
$Done = FALSE; $Tries = 0;
|
||
|
|
while (!$Done && $Tries <= $Weight*2)
|
||
|
|
{
|
||
|
|
$Tries++;
|
||
|
|
$Angle = floor(rand(0,$Weight)*$AngleDivision);
|
||
|
|
if ( !isset($this->Data[$BiggestPartner]["Angular"][$Angle]) || !isset($this->Data[$BiggestPartner]["Angular"]) )
|
||
|
|
{
|
||
|
|
$this->Data[$BiggestPartner]["Angular"][$Angle] = $Angle;
|
||
|
|
$Done = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ( !$Done )
|
||
|
|
{ $Angle = rand(0,360); $this->Data[$BiggestPartner]["Angular"][$Angle] = $Angle; }
|
||
|
|
|
||
|
|
$X = cos(deg2rad($Angle)) * ($Ring) + $this->Data[$BiggestPartner]["X"];
|
||
|
|
$Y = sin(deg2rad($Angle)) * ($Ring) + $this->Data[$BiggestPartner]["Y"];
|
||
|
|
|
||
|
|
$this->Data[$Key]["X"] = $X;
|
||
|
|
$this->Data[$Key]["Y"] = $Y;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif ( $Algorithm == ALGORITHM_CIRCULAR )
|
||
|
|
{
|
||
|
|
$MaxConnections = $MaxConnections + 1;
|
||
|
|
for($i=$MaxConnections;$i>=0;$i--)
|
||
|
|
{
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_FREE )
|
||
|
|
{
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{ $Connections = count($Settings["Connections"]); }
|
||
|
|
else
|
||
|
|
{ $Connections = 0; }
|
||
|
|
|
||
|
|
if ( $Connections == $i )
|
||
|
|
{
|
||
|
|
$Ring = $MaxConnections - $Connections;
|
||
|
|
$Angle = rand(0,360);
|
||
|
|
|
||
|
|
$X = cos(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterX;
|
||
|
|
$Y = sin(deg2rad($Angle)) * ($Ring*$this->RingSize) + $CenterY;
|
||
|
|
|
||
|
|
$MedianOffset = $this->getMedianOffset($Key,$X,$Y);
|
||
|
|
|
||
|
|
$this->Data[$Key]["X"] = $MedianOffset["X"];
|
||
|
|
$this->Data[$Key]["Y"] = $MedianOffset["Y"];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif ( $Algorithm == ALGORITHM_RANDOM )
|
||
|
|
{
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_FREE )
|
||
|
|
{
|
||
|
|
$this->Data[$Key]["X"] = $CenterX + rand(-20,20);
|
||
|
|
$this->Data[$Key]["Y"] = $CenterY + rand(-20,20);
|
||
|
|
}
|
||
|
|
if ( $Settings["Type"] == NODE_TYPE_CENTRAL ) { $this->Data[$Key]["X"] = $CenterX; $this->Data[$Key]["Y"] = $CenterY; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Compute one pass */
|
||
|
|
function doPass()
|
||
|
|
{
|
||
|
|
/* Compute vectors */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
if ( $Settings["Type"] != NODE_TYPE_CENTRAL )
|
||
|
|
{
|
||
|
|
unset($this->Data[$Key]["Vectors"]);
|
||
|
|
|
||
|
|
$X1 = $Settings["X"];
|
||
|
|
$Y1 = $Settings["Y"];
|
||
|
|
|
||
|
|
/* Repulsion vectors */
|
||
|
|
foreach($this->Data as $Key2 => $Settings2)
|
||
|
|
{
|
||
|
|
if ( $Key != $Key2 )
|
||
|
|
{
|
||
|
|
$X2 = $this->Data[$Key2]["X"];
|
||
|
|
$Y2 = $this->Data[$Key2]["Y"];
|
||
|
|
$FreeZone = $this->Data[$Key2]["FreeZone"];
|
||
|
|
|
||
|
|
$Distance = $this->getDistance($X1,$Y1,$X2,$Y2);
|
||
|
|
$Angle = $this->getAngle($X1,$Y1,$X2,$Y2) + 180;
|
||
|
|
|
||
|
|
/* Nodes too close, repulsion occurs */
|
||
|
|
if ( $Distance < $FreeZone )
|
||
|
|
{
|
||
|
|
$Force = log(pow(2,$FreeZone-$Distance));
|
||
|
|
if ( $Force > 1 )
|
||
|
|
{ $this->Data[$Key]["Vectors"][] = array("Type"=>"R","Angle"=>$Angle % 360,"Force"=>$Force); }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Attraction vectors */
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{
|
||
|
|
foreach($Settings["Connections"] as $ID => $NodeID)
|
||
|
|
{
|
||
|
|
if ( isset($this->Data[$NodeID]) )
|
||
|
|
{
|
||
|
|
$X2 = $this->Data[$NodeID]["X"];
|
||
|
|
$Y2 = $this->Data[$NodeID]["Y"];
|
||
|
|
$FreeZone = $this->Data[$Key2]["FreeZone"];
|
||
|
|
|
||
|
|
$Distance = $this->getDistance($X1,$Y1,$X2,$Y2);
|
||
|
|
$Angle = $this->getAngle($X1,$Y1,$X2,$Y2);
|
||
|
|
|
||
|
|
if ( $Distance > $FreeZone )
|
||
|
|
$Force = log(($Distance-$FreeZone)+1);
|
||
|
|
else
|
||
|
|
{ $Force = log(($FreeZone-$Distance)+1); ($Angle = $Angle + 180); }
|
||
|
|
|
||
|
|
if ( $Force > 1 )
|
||
|
|
$this->Data[$Key]["Vectors"][] = array("Type"=>"A","Angle"=>$Angle % 360,"Force"=>$Force);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Move the nodes accoding to the vectors */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X = $Settings["X"];
|
||
|
|
$Y = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( isset($Settings["Vectors"]) && $Settings["Type"] != NODE_TYPE_CENTRAL )
|
||
|
|
{
|
||
|
|
foreach($Settings["Vectors"] as $ID => $Vector)
|
||
|
|
{
|
||
|
|
$Type = $Vector["Type"];
|
||
|
|
$Force = $Vector["Force"];
|
||
|
|
$Angle = $Vector["Angle"];
|
||
|
|
$Factor = $Type == "A" ? $this->MagneticForceA : $this->MagneticForceR;
|
||
|
|
|
||
|
|
$X = cos(deg2rad($Angle)) * $Force * $Factor + $X;
|
||
|
|
$Y = sin(deg2rad($Angle)) * $Force * $Factor + $Y;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->Data[$Key]["X"] = $X;
|
||
|
|
$this->Data[$Key]["Y"] = $Y;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function lastPass()
|
||
|
|
{
|
||
|
|
/* Put everything inside the graph area */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X = $Settings["X"];
|
||
|
|
$Y = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( $X < $this->X1 ) { $X = $this->X1; }
|
||
|
|
if ( $X > $this->X2 ) { $X = $this->X2; }
|
||
|
|
if ( $Y < $this->Y1 ) { $Y = $this->Y1; }
|
||
|
|
if ( $Y > $this->Y2 ) { $Y = $this->Y2; }
|
||
|
|
|
||
|
|
$this->Data[$Key]["X"] = $X;
|
||
|
|
$this->Data[$Key]["Y"] = $Y;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Dump all links */
|
||
|
|
$Links = "";
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X1 = $Settings["X"];
|
||
|
|
$Y1 = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{
|
||
|
|
foreach ($Settings["Connections"] as $ID => $NodeID)
|
||
|
|
{
|
||
|
|
if ( isset($this->Data[$NodeID]) )
|
||
|
|
{
|
||
|
|
$X2 = $this->Data[$NodeID]["X"];
|
||
|
|
$Y2 = $this->Data[$NodeID]["Y"];
|
||
|
|
|
||
|
|
$Links[] = array("X1"=>$X1,"Y1"=>$Y1,"X2"=>$X2,"Y2"=>$Y2,"Source"=>$Settings["Name"],"Destination"=>$this->Data[$NodeID]["Name"]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check collisions */
|
||
|
|
$Conflicts = 0;
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X1 = $Settings["X"];
|
||
|
|
$Y1 = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{
|
||
|
|
foreach ($Settings["Connections"] as $ID => $NodeID)
|
||
|
|
{
|
||
|
|
if ( isset($this->Data[$NodeID]) )
|
||
|
|
{
|
||
|
|
$X2 = $this->Data[$NodeID]["X"];
|
||
|
|
$Y2 = $this->Data[$NodeID]["Y"];
|
||
|
|
|
||
|
|
foreach($Links as $IDLinks => $Link)
|
||
|
|
{
|
||
|
|
$X3 = $Link["X1"]; $Y3 = $Link["Y1"]; $X4 = $Link["X2"]; $Y4 = $Link["Y2"];
|
||
|
|
|
||
|
|
if ( !($X1 == $X3 && $X2 == $X4 && $Y1 == $Y3 && $Y2 == $Y4 ) )
|
||
|
|
{
|
||
|
|
if ( $this->intersect($X1,$Y1,$X2,$Y2,$X3,$Y3,$X4,$Y4) )
|
||
|
|
{
|
||
|
|
if ( $Link["Source"] != $Settings["Name"] && $Link["Source"] != $this->Data[$NodeID]["Name"] && $Link["Destination"] != $Settings["Name"] && $Link["Destination"] != $this->Data[$NodeID]["Name"] )
|
||
|
|
{ $Conflicts++; }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return($Conflicts/2);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Center the graph */
|
||
|
|
function center()
|
||
|
|
{
|
||
|
|
/* Determine the real center */
|
||
|
|
$TargetCenterX = ($this->X2 - $this->X1) / 2 + $this->X1;
|
||
|
|
$TargetCenterY = ($this->Y2 - $this->Y1) / 2 + $this->Y1;
|
||
|
|
|
||
|
|
/* Get current boundaries */
|
||
|
|
$XMin = $this->X2; $XMax = $this->X1;
|
||
|
|
$YMin = $this->Y2; $YMax = $this->Y1;
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X = $Settings["X"];
|
||
|
|
$Y = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( $X < $XMin) { $XMin = $X; }
|
||
|
|
if ( $X > $XMax) { $XMax = $X; }
|
||
|
|
if ( $Y < $YMin) { $YMin = $Y; }
|
||
|
|
if ( $Y > $YMax) { $YMax = $Y; }
|
||
|
|
}
|
||
|
|
$CurrentCenterX = ($XMax - $XMin) / 2 + $XMin;
|
||
|
|
$CurrentCenterY = ($YMax - $YMin) / 2 + $YMin;
|
||
|
|
|
||
|
|
/* Compute the offset to apply */
|
||
|
|
$XOffset = $TargetCenterX - $CurrentCenterX;
|
||
|
|
$YOffset = $TargetCenterY - $CurrentCenterY;
|
||
|
|
|
||
|
|
/* Correct the points position */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$this->Data[$Key]["X"] = $Settings["X"] + $XOffset;
|
||
|
|
$this->Data[$Key]["Y"] = $Settings["Y"] + $YOffset;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Create the encoded string */
|
||
|
|
function drawSpring($Object,$Settings="")
|
||
|
|
{
|
||
|
|
$this->pChartObject = $Object;
|
||
|
|
|
||
|
|
$Pass = isset($Settings["Pass"]) ? $Settings["Pass"] : 50;
|
||
|
|
$Retries = isset($Settings["Retry"]) ? $Settings["Retry"] : 10;
|
||
|
|
$this->MagneticForceA = isset($Settings["MagneticForceA"]) ? $Settings["MagneticForceA"] : 1.5;
|
||
|
|
$this->MagneticForceR = isset($Settings["MagneticForceR"]) ? $Settings["MagneticForceR"] : 2;
|
||
|
|
$this->RingSize = isset($Settings["RingSize"]) ? $Settings["RingSize"] : 40;
|
||
|
|
$DrawVectors = isset($Settings["DrawVectors"]) ? $Settings["DrawVectors"] : FALSE;
|
||
|
|
$DrawQuietZone = isset($Settings["DrawQuietZone"]) ? $Settings["DrawQuietZone"] : FALSE;
|
||
|
|
$CenterGraph = isset($Settings["CenterGraph"]) ? $Settings["CenterGraph"] : TRUE;
|
||
|
|
$TextPadding = isset($Settings["TextPadding"]) ? $Settings["TextPadding"] : 4;
|
||
|
|
$Algorithm = isset($Settings["Algorithm"]) ? $Settings["Algorithm"] : ALGORITHM_WEIGHTED;
|
||
|
|
|
||
|
|
$FontSize = $Object->FontSize;
|
||
|
|
$this->X1 = $Object->GraphAreaX1;
|
||
|
|
$this->Y1 = $Object->GraphAreaY1;
|
||
|
|
$this->X2 = $Object->GraphAreaX2;
|
||
|
|
$this->Y2 = $Object->GraphAreaY2;
|
||
|
|
|
||
|
|
$Conflicts = 1; $Jobs = 0; $this->History["MinimumConflicts"] = -1;
|
||
|
|
while ($Conflicts != 0 && $Jobs < $Retries )
|
||
|
|
{
|
||
|
|
$Jobs++;
|
||
|
|
|
||
|
|
/* Compute the initial settings */
|
||
|
|
$this->firstPass($Algorithm);
|
||
|
|
|
||
|
|
/* Apply the vectors */
|
||
|
|
if ( $Pass > 0 )
|
||
|
|
{
|
||
|
|
for ($i=0; $i<=$Pass; $i++) { $this->doPass(); }
|
||
|
|
}
|
||
|
|
|
||
|
|
$Conflicts = $this->lastPass();
|
||
|
|
if ( $this->History["MinimumConflicts"] == -1 || $Conflicts < $this->History["MinimumConflicts"] )
|
||
|
|
{ $this->History["MinimumConflicts"] = $Conflicts; $this->History["Result"] = $this->Data; }
|
||
|
|
}
|
||
|
|
|
||
|
|
$Conflicts = $this->History["MinimumConflicts"];
|
||
|
|
$this->Data = $this->History["Result"];
|
||
|
|
|
||
|
|
if ( $CenterGraph ) { $this->center(); }
|
||
|
|
|
||
|
|
/* Draw the connections */
|
||
|
|
$Drawn = "";
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X = $Settings["X"];
|
||
|
|
$Y = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( isset($Settings["Connections"]) )
|
||
|
|
{
|
||
|
|
foreach ($Settings["Connections"] as $ID => $NodeID)
|
||
|
|
{
|
||
|
|
if ( !isset($Drawn[$Key]) ) { $Drawn[$Key] = ""; }
|
||
|
|
if ( !isset($Drawn[$NodeID]) ) { $Drawn[$NodeID] = ""; }
|
||
|
|
|
||
|
|
if ( isset($this->Data[$NodeID]) && !isset($Drawn[$Key][$NodeID]) && !isset($Drawn[$NodeID][$Key]) )
|
||
|
|
{
|
||
|
|
$Color = array("R"=>$this->Default["LinkR"],"G"=>$this->Default["LinkG"],"B"=>$this->Default["LinkB"],"Alpha"=>$this->Default["Alpha"]);
|
||
|
|
|
||
|
|
if ( $this->Links != "" )
|
||
|
|
{
|
||
|
|
if ( isset($this->Links[$Key][$NodeID]["R"]) )
|
||
|
|
{ $Color = array("R"=>$this->Links[$Key][$NodeID]["R"],"G"=>$this->Links[$Key][$NodeID]["G"],"B"=>$this->Links[$Key][$NodeID]["B"],"Alpha"=>$this->Links[$Key][$NodeID]["Alpha"]); }
|
||
|
|
|
||
|
|
if ( isset($this->Links[$Key][$NodeID]["Ticks"]) )
|
||
|
|
{ $Color["Ticks"] = $this->Links[$Key][$NodeID]["Ticks"]; }
|
||
|
|
}
|
||
|
|
|
||
|
|
$X2 = $this->Data[$NodeID]["X"];
|
||
|
|
$Y2 = $this->Data[$NodeID]["Y"];
|
||
|
|
$this->pChartObject->drawLine($X,$Y,$X2,$Y2,$Color);
|
||
|
|
$Drawn[$Key][$NodeID] = TRUE;
|
||
|
|
|
||
|
|
if ( isset($this->Links) && $this->Links != "" )
|
||
|
|
{
|
||
|
|
if ( isset($this->Links[$Key][$NodeID]["Name"]) || isset($this->Links[$NodeID][$Key]["Name"]) )
|
||
|
|
{
|
||
|
|
$Name = isset($this->Links[$Key][$NodeID]["Name"]) ? $this->Links[$Key][$NodeID]["Name"] : $this->Links[$NodeID][$Key]["Name"];
|
||
|
|
$TxtX = ($X2 - $X)/2 + $X;
|
||
|
|
$TxtY = ($Y2 - $Y)/2 + $Y;
|
||
|
|
|
||
|
|
if ( $X <= $X2 )
|
||
|
|
$Angle = (360-$this->getAngle($X,$Y,$X2,$Y2)) % 360;
|
||
|
|
else
|
||
|
|
$Angle = (360-$this->getAngle($X2,$Y2,$X,$Y)) % 360;
|
||
|
|
|
||
|
|
$Settings = $Color;
|
||
|
|
$Settings["Angle"] = $Angle;
|
||
|
|
$Settings["Align"] = TEXT_ALIGN_BOTTOMMIDDLE;
|
||
|
|
$this->pChartObject->drawText($TxtX,$TxtY,$Name,$Settings);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Draw the quiet zones */
|
||
|
|
if ( $DrawQuietZone )
|
||
|
|
{
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X = $Settings["X"];
|
||
|
|
$Y = $Settings["Y"];
|
||
|
|
$FreeZone = $Settings["FreeZone"];
|
||
|
|
|
||
|
|
$this->pChartObject->drawFilledCircle($X,$Y,$FreeZone,array("R"=>0,"G"=>0,"B"=>0,"Alpha"=>2));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Draw the nodes */
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X = $Settings["X"];
|
||
|
|
$Y = $Settings["Y"];
|
||
|
|
$Name = $Settings["Name"];
|
||
|
|
$FreeZone = $Settings["FreeZone"];
|
||
|
|
$Shape = $Settings["Shape"];
|
||
|
|
$Size = $Settings["Size"];
|
||
|
|
|
||
|
|
$Color = array("R"=>$Settings["R"],"G"=>$Settings["G"],"B"=>$Settings["B"],"Alpha"=>$Settings["Alpha"],"BorderR"=>$Settings["BorderR"],"BorderG"=>$Settings["BorderG"],"BorderB"=>$Settings["BorderB"],"BorderApha"=>$Settings["BorderAlpha"]);
|
||
|
|
|
||
|
|
if ( $Shape == NODE_SHAPE_CIRCLE )
|
||
|
|
{
|
||
|
|
$this->pChartObject->drawFilledCircle($X,$Y,$Size,$Color);
|
||
|
|
}
|
||
|
|
elseif ( $Shape == NODE_SHAPE_TRIANGLE )
|
||
|
|
{
|
||
|
|
$Points = "";
|
||
|
|
$Points[] = cos(deg2rad(270)) * $Size + $X; $Points[] = sin(deg2rad(270)) * $Size + $Y;
|
||
|
|
$Points[] = cos(deg2rad(45)) * $Size + $X; $Points[] = sin(deg2rad(45)) * $Size + $Y;
|
||
|
|
$Points[] = cos(deg2rad(135)) * $Size + $X; $Points[] = sin(deg2rad(135)) * $Size + $Y;
|
||
|
|
$this->pChartObject->drawPolygon($Points,$Color);
|
||
|
|
}
|
||
|
|
elseif ( $Shape == NODE_SHAPE_SQUARE )
|
||
|
|
{
|
||
|
|
$Offset = $Size/2; $Size = $Size / 2;
|
||
|
|
$this->pChartObject->drawFilledRectangle($X-$Offset,$Y-$Offset,$X+$Offset,$Y+$Offset,$Color);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $Name != "" )
|
||
|
|
{
|
||
|
|
$LabelOptions = array("R"=>$this->Labels["R"],"G"=>$this->Labels["G"],"B"=>$this->Labels["B"],"Alpha"=>$this->Labels["Alpha"]);
|
||
|
|
|
||
|
|
if ( $this->Labels["Type"] == LABEL_LIGHT )
|
||
|
|
{
|
||
|
|
$LabelOptions["Align"] = TEXT_ALIGN_BOTTOMLEFT;
|
||
|
|
$this->pChartObject->drawText($X,$Y,$Name,$LabelOptions);
|
||
|
|
}
|
||
|
|
elseif ( $this->Labels["Type"] == LABEL_CLASSIC )
|
||
|
|
{
|
||
|
|
$LabelOptions["Align"] = TEXT_ALIGN_TOPMIDDLE;
|
||
|
|
$LabelOptions["DrawBox"] = TRUE;
|
||
|
|
$LabelOptions["BoxAlpha"] = 50;
|
||
|
|
$LabelOptions["BorderOffset"] = 4;
|
||
|
|
$LabelOptions["RoundedRadius"] = 3;
|
||
|
|
$LabelOptions["BoxRounded"] = TRUE;
|
||
|
|
$LabelOptions["NoShadow"] = TRUE;
|
||
|
|
|
||
|
|
$this->pChartObject->drawText($X,$Y+$Size+$TextPadding,$Name,$LabelOptions);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Draw the vectors */
|
||
|
|
if ( $DrawVectors )
|
||
|
|
{
|
||
|
|
foreach($this->Data as $Key => $Settings)
|
||
|
|
{
|
||
|
|
$X1 = $Settings["X"];
|
||
|
|
$Y1 = $Settings["Y"];
|
||
|
|
|
||
|
|
if ( isset($Settings["Vectors"]) && $Settings["Type"] != NODE_TYPE_CENTRAL )
|
||
|
|
{
|
||
|
|
foreach($Settings["Vectors"] as $ID => $Vector)
|
||
|
|
{
|
||
|
|
$Type = $Vector["Type"];
|
||
|
|
$Force = $Vector["Force"];
|
||
|
|
$Angle = $Vector["Angle"];
|
||
|
|
$Factor = $Type == "A" ? $this->MagneticForceA : $this->MagneticForceR;
|
||
|
|
$Color = $Type == "A" ? array("FillR"=>255,"FillG"=>0,"FillB"=>0) : array("FillR"=>0,"FillG"=>255,"FillB"=>0);
|
||
|
|
|
||
|
|
$X2 = cos(deg2rad($Angle)) * $Force * $Factor + $X1;
|
||
|
|
$Y2 = sin(deg2rad($Angle)) * $Force * $Factor + $Y1;
|
||
|
|
|
||
|
|
$this->pChartObject->drawArrow($X1,$Y1,$X2,$Y2,$Color);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return(array("Pass"=>$Jobs,"Conflicts"=>$Conflicts));
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Return the distance between two points */
|
||
|
|
function getDistance($X1,$Y1,$X2,$Y2)
|
||
|
|
{ return (sqrt(($X2-$X1)*($X2-$X1)+($Y2-$Y1)*($Y2-$Y1))); }
|
||
|
|
|
||
|
|
/* Return the angle made by a line and the X axis */
|
||
|
|
function getAngle($X1,$Y1,$X2,$Y2)
|
||
|
|
{
|
||
|
|
$Opposite = $Y2 - $Y1; $Adjacent = $X2 - $X1;$Angle = rad2deg(atan2($Opposite,$Adjacent));
|
||
|
|
if ($Angle > 0) { return($Angle); } else { return(360-abs($Angle)); }
|
||
|
|
}
|
||
|
|
|
||
|
|
function intersect($X1,$Y1,$X2,$Y2,$X3,$Y3,$X4,$Y4)
|
||
|
|
{
|
||
|
|
$A = (($X3 * $Y4 - $X4 * $Y3) * ($X1 - $X2) - ($X1 * $Y2 - $X2 * $Y1) * ($X3 - $X4));
|
||
|
|
$B = (($Y1 - $Y2) * ($X3 - $X4) - ($Y3 - $Y4) * ($X1 - $X2));
|
||
|
|
|
||
|
|
if ( $B == 0 ) { return(FALSE); }
|
||
|
|
$Xi = $A / $B;
|
||
|
|
|
||
|
|
$C = ($X1 - $X2);
|
||
|
|
if ( $C == 0 ) { return(FALSE); }
|
||
|
|
$Yi = $Xi * (($Y1 - $Y2)/$C) + (($X1 * $Y2 - $X2 * $Y1)/$C);
|
||
|
|
|
||
|
|
if ( $Xi >= min($X1,$X2) && $Xi >= min($X3,$X4) && $Xi <= max($X1,$X2) && $Xi <= max($X3,$X4))
|
||
|
|
{
|
||
|
|
if ( $Yi >= min($Y1,$Y2) && $Yi >= min($Y3,$Y4) && $Yi <= max($Y1,$Y2) && $Yi <= max($Y3,$Y4))
|
||
|
|
{ return(TRUE); }
|
||
|
|
}
|
||
|
|
|
||
|
|
return(FALSE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
?>
|