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Prerender labels and cache them as images

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This commit is contained in:
Andreas Hocevar
2017-08-31 16:19:33 +02:00
parent 5f2b729c74
commit 35bd92b713
15 changed files with 211 additions and 258 deletions
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24
src/ol/render/webgl/textreplay.js
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@@ -4,6 +4,7 @@ goog.require('ol');
goog.require('ol.colorlike');
goog.require('ol.dom');
goog.require('ol.has');
goog.require('ol.render.replay');
goog.require('ol.render.webgl');
goog.require('ol.render.webgl.TextureReplay');
goog.require('ol.style.AtlasManager');
@@ -348,8 +349,8 @@ ol.render.webgl.TextReplay.prototype.setTextStyle = function(textStyle) {
state.font = textStyle.getFont() || ol.render.webgl.defaultFont;
state.scale = textStyle.getScale() || 1;
this.text_ = /** @type {string} */ (textStyle.getText());
var textAlign = ol.render.webgl.TextReplay.Align_[textStyle.getTextAlign()];
var textBaseline = ol.render.webgl.TextReplay.Align_[textStyle.getTextBaseline()];
var textAlign = ol.render.replay.TEXT_ALIGN[textStyle.getTextAlign()];
var textBaseline = ol.render.replay.TEXT_ALIGN[textStyle.getTextBaseline()];
this.textAlign_ = textAlign === undefined ?
ol.render.webgl.defaultTextAlign : textAlign;
this.textBaseline_ = textBaseline === undefined ?
@@ -430,22 +431,3 @@ ol.render.webgl.TextReplay.prototype.getTextures = function(opt_all) {
ol.render.webgl.TextReplay.prototype.getHitDetectionTextures = function() {
return this.textures_;
};
/**
* @enum {number}
* @private
*/
ol.render.webgl.TextReplay.Align_ = {
left: 0,
end: 0,
center: 0.5,
right: 1,
start: 1,
top: 0,
middle: 0.5,
hanging: 0.2,
alphabetic: 0.8,
ideographic: 0.8,
bottom: 1
};