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Support minPointsPerRing and default to 3

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This commit is contained in:
Tim Schaub
2014-03-05 12:58:03 -07:00
parent 30865c2a42
commit a18593ee10
2 changed files with 13 additions and 1 deletions
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2
src/objectliterals.jsdoc
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@@ -415,6 +415,8 @@
* drawing finish (default is 12).
* @property {ol.geom.GeometryType} type Drawing type ('Point', 'LineString',
* 'Polygon', 'MultiPoint', 'MultiLineString', or 'MultiPolygon').
* @property {number|undefined} minPointsPerRing The number of points that must
* be drawn before a polygon ring can be finished (default is 3).
* @property {ol.style.Style|Array.<ol.style.Style>|ol.feature.StyleFunction|undefined} style
* Style for sketch features.
* @todo stability experimental

12
src/ol/interaction/drawinteraction.js
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@@ -89,6 +89,15 @@ ol.interaction.Draw = function(options) {
this.snapTolerance_ = goog.isDef(options.snapTolerance) ?
options.snapTolerance : 12;
/**
* The number of points that must be drawn before a polygon ring can be
* finished. The default is 3.
* @type {number}
* @private
*/
this.minPointsPerRing_ = goog.isDef(options.minPointsPerRing) ?
options.minPointsPerRing : 3;
/**
* Geometry type.
* @type {ol.geom.GeometryType}
@@ -314,7 +323,8 @@ ol.interaction.Draw.prototype.atFinish_ = function(event) {
potentiallyDone = geometry.getCoordinates().length > 2;
} else if (this.mode_ === ol.interaction.DrawMode.POLYGON) {
goog.asserts.assertInstanceof(geometry, ol.geom.Polygon);
potentiallyDone = geometry.getCoordinates()[0].length > 2;
potentiallyDone = geometry.getCoordinates()[0].length >
this.minPointsPerRing_;
potentiallyFinishCoordinates = [this.sketchRawPolygon_[0][0],
this.sketchRawPolygon_[0][this.sketchRawPolygon_[0].length - 2]];
}