Trivial - reorder methods & comment
This commit is contained in:
Alexandre Dubé
@@ -140,10 +140,9 @@ optionsForm.onchange = function(e) {
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Draw.setActive(true);
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Modify.setActive(false);
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// snap duplicates the geometries so it can create a index.
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// when a gemetry is modified, index needs to be rebuild for that
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// geometry by removeing the old and adding the new
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// The snap interaction must be added after the Modify and Draw interactions
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// in order for its map browser event handlers to be fired first. Its handlers
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// are responsible of doing the snapping.
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var snap = new ol.interaction.Snap({
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features: featureOverlay.getFeatures()
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});
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@@ -23,7 +23,14 @@ goog.require('ol.structs.RBush');
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/**
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* @classdesc
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* Helper class for providing snap in ol.interaction.Pointer.
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* Handles snapping of vector features while modifying or drawing them. The
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* features can come from a {@link ol.source.Vector}, a {@link ol.Collection}
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* or a plain array. Any interaction object that allows the user to interact
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* with the features using the mouse can benefit from the snapping, as long
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* as it is added before.
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*
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* The snap interaction modifies map browser event `coordinate` and `pixel`
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* properties to force the snap to occur to any interaction that them.
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*
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* Example:
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*
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@@ -119,26 +126,6 @@ ol.interaction.Snap = function(opt_options) {
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goog.inherits(ol.interaction.Snap, ol.interaction.Pointer);
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/**
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* Flag turned on when detecting a pointer drag|move event, and turned off when
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* detecting any other type of event. Skip the update of the geometry index
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* while dragging.
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* @type {boolean}
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* @private
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*/
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ol.interaction.Snap.prototype.dragging_ = false;
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/**
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* If a feature geometry changes while a pointer drag|move event occurs, the
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* feature doesn't get updated right away. It will be at the next 'pointerup'
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* event fired.
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* @type {?ol.Feature}
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* @private
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*/
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ol.interaction.Snap.prototype.featurePending_ = null;
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/**
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* @param {ol.Feature} feature Feature.
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* @param {boolean=} opt_listen Whether to listen to the geometry change or not
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@@ -167,71 +154,23 @@ goog.exportProperty(
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/**
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* @inheritDoc
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* Flag turned on when detecting a pointer drag|move event, and turned off when
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* detecting any other type of event. Skip the update of the geometry index
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* while dragging.
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* @type {boolean}
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* @private
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*/
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ol.interaction.Snap.prototype.setMap = function(map) {
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var currentMap = this.getMap();
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var keys = this.featuresListenerKeys_;
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var features = this.features_;
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var source = this.source_;
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if (currentMap) {
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keys.forEach(ol.Observable.unByKey, this);
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keys.clear();
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}
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goog.base(this, 'setMap', map);
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if (map) {
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if (!goog.isNull(features)) {
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keys.push(features.on(ol.CollectionEventType.ADD,
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this.handleFeatureAdd_, this));
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keys.push(features.on(ol.CollectionEventType.REMOVE,
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this.handleFeatureRemove_, this));
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} else if (!goog.isNull(source)) {
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keys.push(source.on(ol.source.VectorEventType.ADDFEATURE,
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this.handleFeatureAdd_, this));
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keys.push(source.on(ol.source.VectorEventType.REMOVEFEATURE,
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this.handleFeatureRemove_, this));
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}
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}
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};
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ol.interaction.Snap.prototype.dragging_ = false;
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/**
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* @param {ol.MapBrowserPointerEvent} evt Event.
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* @return {boolean} Stop drag sequence?
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* @this {ol.interaction.Snap}
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* @api
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* If a feature geometry changes while a pointer drag|move event occurs, the
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* feature doesn't get updated right away. It will be at the next 'pointerup'
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* event fired.
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* @type {?ol.Feature}
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* @private
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*/
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ol.interaction.Snap.handleDownAndUpEvent = function(evt) {
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this.dragging_ = false;
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if (evt.type === ol.MapBrowserEvent.EventType.POINTERUP &&
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!goog.isNull(this.featurePending_)) {
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this.updateFeature_(this.featurePending_);
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this.featurePending_ = null;
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}
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return this.handleEvent_(evt);
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};
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/**
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* @param {ol.MapBrowserEvent} mapBrowserEvent Map browser event.
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* @return {boolean} `false` to stop event propagation.
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* @this {ol.interaction.Snap}
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* @api
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*/
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ol.interaction.Snap.handleEvent = function(mapBrowserEvent) {
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var pass = true;
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if (mapBrowserEvent.type === ol.MapBrowserEvent.EventType.POINTERDRAG ||
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mapBrowserEvent.type === ol.MapBrowserEvent.EventType.POINTERMOVE) {
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pass = this.handleEvent_(mapBrowserEvent);
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this.dragging_ = true;
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} else {
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this.dragging_ = false;
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}
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return ol.interaction.Pointer.handleEvent.call(this, mapBrowserEvent) && pass;
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};
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ol.interaction.Snap.prototype.featurePending_ = null;
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/**
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@@ -299,149 +238,6 @@ ol.interaction.Snap.prototype.handleGeometryChanged_ = function(feature, evt) {
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.Point} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writePointGeometry_ =
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function(feature, geometry) {
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var coordinates = geometry.getCoordinates();
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var segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: [coordinates, coordinates]
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});
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this.rBush_.insert(geometry.getExtent(), segmentData);
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.MultiPoint} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeMultiPointGeometry_ =
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function(feature, geometry) {
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var points = geometry.getCoordinates();
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var coordinates, i, ii, segmentData;
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for (i = 0, ii = points.length; i < ii; ++i) {
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coordinates = points[i];
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: [coordinates, coordinates]
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});
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this.rBush_.insert(geometry.getExtent(), segmentData);
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.LineString} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeLineStringGeometry_ =
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function(feature, geometry) {
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var coordinates = geometry.getCoordinates();
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var i, ii, segment, segmentData;
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.MultiLineString} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeMultiLineStringGeometry_ =
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function(feature, geometry) {
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var lines = geometry.getCoordinates();
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var coordinates, i, ii, j, jj, segment, segmentData;
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for (j = 0, jj = lines.length; j < jj; ++j) {
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coordinates = lines[j];
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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}
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.Polygon} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writePolygonGeometry_ =
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function(feature, geometry) {
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var rings = geometry.getCoordinates();
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var coordinates, i, ii, j, jj, segment, segmentData;
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for (j = 0, jj = rings.length; j < jj; ++j) {
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coordinates = rings[j];
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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}
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.MultiPolygon} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeMultiPolygonGeometry_ =
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function(feature, geometry) {
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var polygons = geometry.getCoordinates();
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var coordinates, i, ii, j, jj, k, kk, rings, segment, segmentData;
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for (k = 0, kk = polygons.length; k < kk; ++k) {
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rings = polygons[k];
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for (j = 0, jj = rings.length; j < jj; ++j) {
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coordinates = rings[j];
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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}
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}
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.GeometryCollection} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeGeometryCollectionGeometry_ =
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function(feature, geometry) {
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var i, geometries = geometry.getGeometriesArray();
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for (i = 0; i < geometries.length; ++i) {
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this.SEGMENT_WRITERS_[geometries[i].getType()].call(
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this, feature, geometries[i]);
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.Extent} extent Extent.
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@@ -478,15 +274,43 @@ goog.exportProperty(
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/**
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* @param {ol.Feature} feature Feature
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* @private
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* @inheritDoc
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*/
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ol.interaction.Snap.prototype.updateFeature_ = function(feature) {
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this.removeFeature(feature, feature.getGeometry().getExtent(), false);
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this.addFeature(feature, false);
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ol.interaction.Snap.prototype.setMap = function(map) {
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var currentMap = this.getMap();
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var keys = this.featuresListenerKeys_;
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var features = this.features_;
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var source = this.source_;
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if (currentMap) {
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keys.forEach(ol.Observable.unByKey, this);
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keys.clear();
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}
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goog.base(this, 'setMap', map);
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if (map) {
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if (!goog.isNull(features)) {
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keys.push(features.on(ol.CollectionEventType.ADD,
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this.handleFeatureAdd_, this));
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keys.push(features.on(ol.CollectionEventType.REMOVE,
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this.handleFeatureRemove_, this));
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} else if (!goog.isNull(source)) {
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keys.push(source.on(ol.source.VectorEventType.ADDFEATURE,
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this.handleFeatureAdd_, this));
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keys.push(source.on(ol.source.VectorEventType.REMOVEFEATURE,
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this.handleFeatureRemove_, this));
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}
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}
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};
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/**
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* @inheritDoc
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*/
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ol.interaction.Snap.prototype.shouldStopEvent = goog.functions.FALSE;
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/**
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* @param {ol.Pixel} pixel Pixel
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* @param {ol.Coordinate} pixelCoordinate Coordinate
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@@ -539,22 +363,156 @@ ol.interaction.Snap.prototype.snapTo = function(pixel, pixelCoordinate, map) {
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/**
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* Sort segments by distance, helper function
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* @param {ol.Coordinate} pixelCoordinate Coordinate to determine distance
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* @param {ol.interaction.Snap.SegmentDataType} a
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* @param {ol.interaction.Snap.SegmentDataType} b
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* @return {number}
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* @param {ol.Feature} feature Feature
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* @private
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*/
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ol.interaction.Snap.sortByDistance = function(pixelCoordinate, a, b) {
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return ol.coordinate.squaredDistanceToSegment(pixelCoordinate, a.segment) -
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ol.coordinate.squaredDistanceToSegment(pixelCoordinate, b.segment);
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ol.interaction.Snap.prototype.updateFeature_ = function(feature) {
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this.removeFeature(feature, feature.getGeometry().getExtent(), false);
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this.addFeature(feature, false);
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};
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/**
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* @inheritDoc
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.GeometryCollection} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.shouldStopEvent = goog.functions.FALSE;
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ol.interaction.Snap.prototype.writeGeometryCollectionGeometry_ =
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function(feature, geometry) {
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var i, geometries = geometry.getGeometriesArray();
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for (i = 0; i < geometries.length; ++i) {
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this.SEGMENT_WRITERS_[geometries[i].getType()].call(
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this, feature, geometries[i]);
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.LineString} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeLineStringGeometry_ =
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function(feature, geometry) {
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var coordinates = geometry.getCoordinates();
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var i, ii, segment, segmentData;
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.MultiLineString} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeMultiLineStringGeometry_ =
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function(feature, geometry) {
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var lines = geometry.getCoordinates();
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var coordinates, i, ii, j, jj, segment, segmentData;
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for (j = 0, jj = lines.length; j < jj; ++j) {
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coordinates = lines[j];
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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}
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}
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};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.MultiPoint} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeMultiPointGeometry_ =
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function(feature, geometry) {
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var points = geometry.getCoordinates();
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var coordinates, i, ii, segmentData;
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for (i = 0, ii = points.length; i < ii; ++i) {
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coordinates = points[i];
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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feature: feature,
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segment: [coordinates, coordinates]
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});
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this.rBush_.insert(geometry.getExtent(), segmentData);
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}
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||||
};
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/**
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* @param {ol.Feature} feature Feature
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* @param {ol.geom.MultiPolygon} geometry Geometry.
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* @private
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*/
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ol.interaction.Snap.prototype.writeMultiPolygonGeometry_ =
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function(feature, geometry) {
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var polygons = geometry.getCoordinates();
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var coordinates, i, ii, j, jj, k, kk, rings, segment, segmentData;
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for (k = 0, kk = polygons.length; k < kk; ++k) {
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rings = polygons[k];
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for (j = 0, jj = rings.length; j < jj; ++j) {
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coordinates = rings[j];
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for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
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segment = coordinates.slice(i, i + 2);
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segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
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||||
feature: feature,
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segment: segment
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});
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this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
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||||
}
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||||
}
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||||
}
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||||
};
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||||
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||||
|
||||
/**
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||||
* @param {ol.Feature} feature Feature
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||||
* @param {ol.geom.Point} geometry Geometry.
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||||
* @private
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||||
*/
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||||
ol.interaction.Snap.prototype.writePointGeometry_ =
|
||||
function(feature, geometry) {
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var coordinates = geometry.getCoordinates();
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||||
var segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
|
||||
feature: feature,
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||||
segment: [coordinates, coordinates]
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});
|
||||
this.rBush_.insert(geometry.getExtent(), segmentData);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.Feature} feature Feature
|
||||
* @param {ol.geom.Polygon} geometry Geometry.
|
||||
* @private
|
||||
*/
|
||||
ol.interaction.Snap.prototype.writePolygonGeometry_ =
|
||||
function(feature, geometry) {
|
||||
var rings = geometry.getCoordinates();
|
||||
var coordinates, i, ii, j, jj, segment, segmentData;
|
||||
for (j = 0, jj = rings.length; j < jj; ++j) {
|
||||
coordinates = rings[j];
|
||||
for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
|
||||
segment = coordinates.slice(i, i + 2);
|
||||
segmentData = /** @type {ol.interaction.Snap.SegmentDataType} */ ({
|
||||
feature: feature,
|
||||
segment: segment
|
||||
});
|
||||
this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
@@ -574,3 +532,52 @@ ol.interaction.Snap.ResultType;
|
||||
* }}
|
||||
*/
|
||||
ol.interaction.Snap.SegmentDataType;
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.MapBrowserPointerEvent} evt Event.
|
||||
* @return {boolean} Stop drag sequence?
|
||||
* @this {ol.interaction.Snap}
|
||||
* @api
|
||||
*/
|
||||
ol.interaction.Snap.handleDownAndUpEvent = function(evt) {
|
||||
this.dragging_ = false;
|
||||
if (evt.type === ol.MapBrowserEvent.EventType.POINTERUP &&
|
||||
!goog.isNull(this.featurePending_)) {
|
||||
this.updateFeature_(this.featurePending_);
|
||||
this.featurePending_ = null;
|
||||
}
|
||||
return this.handleEvent_(evt);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.MapBrowserEvent} mapBrowserEvent Map browser event.
|
||||
* @return {boolean} `false` to stop event propagation.
|
||||
* @this {ol.interaction.Snap}
|
||||
* @api
|
||||
*/
|
||||
ol.interaction.Snap.handleEvent = function(mapBrowserEvent) {
|
||||
var pass = true;
|
||||
if (mapBrowserEvent.type === ol.MapBrowserEvent.EventType.POINTERDRAG ||
|
||||
mapBrowserEvent.type === ol.MapBrowserEvent.EventType.POINTERMOVE) {
|
||||
pass = this.handleEvent_(mapBrowserEvent);
|
||||
this.dragging_ = true;
|
||||
} else {
|
||||
this.dragging_ = false;
|
||||
}
|
||||
return ol.interaction.Pointer.handleEvent.call(this, mapBrowserEvent) && pass;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Sort segments by distance, helper function
|
||||
* @param {ol.Coordinate} pixelCoordinate Coordinate to determine distance
|
||||
* @param {ol.interaction.Snap.SegmentDataType} a
|
||||
* @param {ol.interaction.Snap.SegmentDataType} b
|
||||
* @return {number}
|
||||
*/
|
||||
ol.interaction.Snap.sortByDistance = function(pixelCoordinate, a, b) {
|
||||
return ol.coordinate.squaredDistanceToSegment(pixelCoordinate, a.segment) -
|
||||
ol.coordinate.squaredDistanceToSegment(pixelCoordinate, b.segment);
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user