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Finish the zoom controller (well it is not finish, it needs the plus and minor buttons...sorry)

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This commit is contained in:
mdtrooper 2016-02-23 12:37:58 +01:00
parent e2b8870afe
commit 2ee1e5c345
1 changed files with 38 additions and 14 deletions
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52
pandora_console/include/javascript/map/MapController.js
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@ -51,13 +51,15 @@ MapController.prototype.init_map = function() {
self.tooltip_map_close();
var zoom_level = d3.event.scale;
if (zoom_level == 1) {
zoom_level = 0;
}
else if (zoom_level < 1) {
zoom_level = (-zoom_level) * 100;
zoom_level = (zoom_level * 100) - 100;
}
slider.property("value", zoom_level);
self._viewport
@ -69,29 +71,51 @@ MapController.prototype.init_map = function() {
}
function slided(d) {
//~ var zoom_level = d3.select(this).property("value");
//~
//~ if (zoom_level == 0) {
//~ zoom_level = 1;
//~ }
//~ else if (zoom_level < 0) {
//~ zoom_level = 1 / (-zoom_level);
//~ }
//~
//~ self._zoomManager.scale(zoom_level)
//~ .event(svg);
var zoom_level = parseFloat(d3.select(this).property("value"));
if (zoom_level == 0) {
zoom_level = 1;
}
else if (zoom_level < 0) {
console.log("caca");
zoom_level = (zoom_level + 100) / 100;
}
// Code to translate the map with the zoom for to hold the center
var center = [
parseFloat(d3.select("#map").style('width')) / 2,
parseFloat(d3.select("#map").style('height')) / 2];
var old_translate = self._zoomManager.translate();
var old_scale = self._zoomManager.scale();
var temp1 = [(center[0] - old_translate[0]) / old_scale,
(center[1] - old_translate[1]) / old_scale];
var temp2 = [temp1[0] * zoom_level + old_translate[0],
temp1[1] * zoom_level + old_translate[1]];
var new_translation = [
old_translate[0] + center[0] - temp2[0],
old_translate[1] + center[1] - temp2[1]]
// -------------------------------------------------------------
self._zoomManager.scale(zoom_level)
.translate(new_translation)
.event(self._viewport);
}
var slider = d3.select("#map .zoom_controller .vertical_range")
.attr("value", self._zoomManager.scaleExtent()[0])
.attr("min", -self._zoomManager.scaleExtent()[1])
.attr("min", (self._zoomManager.scaleExtent()[0] * 100) - 100)
.attr("max", self._zoomManager.scaleExtent()[1])
.attr("step", (self._zoomManager.scaleExtent()[1] - self._zoomManager.scaleExtent()[0]) / 100)
.on("input", slided);
d3.select("#map .zoom_controller .home_zoom")
.on("onclick", home_zoom);
.on("click", home_zoom);