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Render simplified geometries in replay mode

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This commit is contained in:
Tom Payne
2013-12-06 15:44:03 +01:00
parent d3320da7c6
commit c6181ea9d1
2 changed files with 10 additions and 4 deletions
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6
src/ol/render/vector.js
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@@ -15,10 +15,12 @@ goog.require('ol.style.Style');
* @param {ol.render.IReplayGroup} replayGroup Replay group.
* @param {ol.Feature} feature Feature.
* @param {ol.style.Style} style Style.
* @param {number} squaredTolerance Squared tolerance.
* @param {Object} data Opaque data object.
*/
ol.renderer.vector.renderFeature = function(replayGroup, feature, style, data) {
var geometry = feature.getGeometry();
ol.renderer.vector.renderFeature = function(
replayGroup, feature, style, squaredTolerance, data) {
var geometry = feature.getGeometry().getSimplifiedGeometry(squaredTolerance);
var geometryRenderer =
ol.renderer.vector.GEOMETRY_RENDERERS_[geometry.getType()];
goog.asserts.assert(goog.isDef(geometryRenderer));

8
src/ol/renderer/canvas/canvasvectorlayerrenderer.js
View File

@@ -218,6 +218,8 @@ ol.renderer.canvas.VectorLayer.prototype.renderFeature =
function(feature, resolution, styleFunction, replayGroup) {
var loading = false;
var styles = styleFunction(feature, resolution);
// simplify to a tolerance of half a CSS pixel
var squaredTolerance = resolution * resolution / 4;
var i, ii, style, imageStyle, imageState;
for (i = 0, ii = styles.length; i < ii; ++i) {
style = styles[i];
@@ -228,12 +230,14 @@ ol.renderer.canvas.VectorLayer.prototype.renderFeature =
this.handleImageStyleChange_, false, this);
imageStyle.load();
} else if (imageStyle.imageState == ol.style.ImageState.LOADED) {
ol.renderer.vector.renderFeature(replayGroup, feature, style, feature);
ol.renderer.vector.renderFeature(
replayGroup, feature, style, squaredTolerance, feature);
}
goog.asserts.assert(imageStyle.imageState != ol.style.ImageState.IDLE);
loading = imageStyle.imageState == ol.style.ImageState.LOADING;
} else {
ol.renderer.vector.renderFeature(replayGroup, feature, style, feature);
ol.renderer.vector.renderFeature(
replayGroup, feature, style, squaredTolerance, feature);
}
}
return loading;