ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add point at head of drawing

Browse Source
This commit is contained in:
Tim Schaub
2013-10-30 15:28:52 -06:00
parent b3487ad30e
commit d821f227ba
2 changed files with 64 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
src/ol/interaction/drawinteraction.js
View File

@@ -69,6 +69,13 @@ ol.interaction.Draw = function(options) {
*/
this.sketchFeature_ = null;
/**
* Sketch point.
* @type {ol.Feature}
* @private
*/
this.sketchPoint_ = null;
};
goog.inherits(ol.interaction.Draw, ol.interaction.Interaction);
@@ -181,20 +188,31 @@ ol.interaction.Draw.prototype.atStart_ = function(event) {
ol.interaction.Draw.prototype.startDrawing_ = function(event) {
var start = event.getCoordinate();
this.startCoordinate_ = start;
var feature = new ol.Feature();
feature.setRenderIntent(ol.layer.VectorLayerRenderIntent.SELECTED);
var sketchFeature = new ol.Feature();
sketchFeature.setRenderIntent(ol.layer.VectorLayerRenderIntent.SELECTED);
var features = [sketchFeature];
var geometry;
if (this.mode_ === ol.interaction.DrawMode.POINT) {
geometry = new ol.geom.Point(start.slice());
} else if (this.mode_ === ol.interaction.DrawMode.LINESTRING) {
geometry = new ol.geom.LineString([start.slice(), start.slice()]);
} else if (this.mode_ === ol.interaction.DrawMode.POLYGON) {
geometry = new ol.geom.Polygon([[start.slice(), start.slice()]]);
} else {
var sketchPoint = new ol.Feature({
geom: new ol.geom.Point(start.slice())
});
sketchPoint.setRenderIntent(ol.layer.VectorLayerRenderIntent.FUTURE);
this.sketchPoint_ = sketchPoint;
features.push(sketchPoint);
if (this.mode_ === ol.interaction.DrawMode.LINESTRING) {
geometry = new ol.geom.LineString([start.slice(), start.slice()]);
} else if (this.mode_ === ol.interaction.DrawMode.POLYGON) {
geometry = new ol.geom.Polygon([[start.slice(), start.slice()]]);
}
}
goog.asserts.assert(goog.isDef(geometry));
feature.setGeometry(geometry);
this.sketchFeature_ = feature;
this.sketchLayer_.addFeatures([feature]);
sketchFeature.setGeometry(geometry);
this.sketchFeature_ = sketchFeature;
this.sketchLayer_.addFeatures(features);
};
@@ -212,19 +230,22 @@ ol.interaction.Draw.prototype.modifyDrawing_ = function(event) {
last[0] = coordinate[0];
last[1] = coordinate[1];
geometry.setCoordinates(last);
} else if (this.mode_ === ol.interaction.DrawMode.LINESTRING) {
coordinates = geometry.getCoordinates();
last = coordinates[coordinates.length - 1];
last[0] = coordinate[0];
last[1] = coordinate[1];
geometry.setCoordinates(coordinates);
} else if (this.mode_ === ol.interaction.DrawMode.POLYGON) {
var ring = geometry.getRings()[0];
coordinates = ring.getCoordinates();
last = coordinates[coordinates.length - 1];
last[0] = coordinate[0];
last[1] = coordinate[1];
ring.setCoordinates(coordinates);
} else {
this.sketchPoint_.getGeometry().setCoordinates(coordinate);
if (this.mode_ === ol.interaction.DrawMode.LINESTRING) {
coordinates = geometry.getCoordinates();
last = coordinates[coordinates.length - 1];
last[0] = coordinate[0];
last[1] = coordinate[1];
geometry.setCoordinates(coordinates);
} else if (this.mode_ === ol.interaction.DrawMode.POLYGON) {
var ring = geometry.getRings()[0];
coordinates = ring.getCoordinates();
last = coordinates[coordinates.length - 1];
last[0] = coordinate[0];
last[1] = coordinate[1];
ring.setCoordinates(coordinates);
}
}
};
@@ -258,10 +279,14 @@ ol.interaction.Draw.prototype.addToDrawing_ = function(event) {
*/
ol.interaction.Draw.prototype.finishDrawing_ = function(event) {
this.startCoordinate_ = null;
var feature = this.sketchFeature_;
this.sketchLayer_.removeFeatures([feature]);
feature.setRenderIntent(ol.layer.VectorLayerRenderIntent.DEFAULT);
this.layer_.addFeatures([feature]);
var sketchFeature = this.sketchFeature_;
var features = [sketchFeature];
if (this.mode_ !== ol.interaction.DrawMode.POINT) {
features.push(this.sketchPoint_);
}
this.sketchLayer_.removeFeatures(features);
sketchFeature.setRenderIntent(ol.layer.VectorLayerRenderIntent.DEFAULT);
this.layer_.addFeatures([sketchFeature]);
};