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Snap to finish with configurable tolerance

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This commit is contained in:
Tim Schaub
2013-10-30 16:01:26 -06:00
parent ea6500ecd0
commit b5cc35ee04
2 changed files with 18 additions and 12 deletions
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28
src/ol/interaction/drawinteraction.js
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@@ -46,7 +46,8 @@ ol.interaction.Draw = function(options) {
* @type {number}
* @private
*/
this.snapTolerance_ = 15;
this.snapTolerance_ = goog.isDef(options.snapTolerance) ?
options.snapTolerance : 12;
/**
* Draw mode.
@@ -232,21 +233,24 @@ ol.interaction.Draw.prototype.modifyDrawing_ = function(event) {
last[1] = coordinate[1];
geometry.setCoordinates(last);
} else {
this.sketchPoint_.getGeometry().setCoordinates(coordinate);
var potentiallyDone = false;
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);
potentiallyDone = coordinates.length > 2;
} 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);
geometry = geometry.getRings()[0];
coordinates = geometry.getCoordinates();
potentiallyDone = coordinates.length > 3;
}
if (potentiallyDone && this.atFinish_(event)) {
// snap to finish
coordinate = this.finishCoordinate_.slice();
}
this.sketchPoint_.getGeometry().setCoordinates(coordinate);
last = coordinates[coordinates.length - 1];
last[0] = coordinate[0];
last[1] = coordinate[1];
geometry.setCoordinates(coordinates);
}
};