922 lines
27 KiB
JavaScript
922 lines
27 KiB
JavaScript
goog.provide('ol.interaction.Modify');
|
|
|
|
goog.require('goog.array');
|
|
goog.require('goog.asserts');
|
|
goog.require('goog.events');
|
|
goog.require('goog.events.Event');
|
|
goog.require('goog.functions');
|
|
goog.require('ol.Collection');
|
|
goog.require('ol.CollectionEventType');
|
|
goog.require('ol.Feature');
|
|
goog.require('ol.MapBrowserEvent.EventType');
|
|
goog.require('ol.ViewHint');
|
|
goog.require('ol.coordinate');
|
|
goog.require('ol.events.condition');
|
|
goog.require('ol.extent');
|
|
goog.require('ol.geom.GeometryType');
|
|
goog.require('ol.geom.LineString');
|
|
goog.require('ol.geom.MultiLineString');
|
|
goog.require('ol.geom.MultiPoint');
|
|
goog.require('ol.geom.MultiPolygon');
|
|
goog.require('ol.geom.Point');
|
|
goog.require('ol.geom.Polygon');
|
|
goog.require('ol.interaction.Pointer');
|
|
goog.require('ol.layer.Vector');
|
|
goog.require('ol.source.Vector');
|
|
goog.require('ol.structs.RBush');
|
|
goog.require('ol.style.Style');
|
|
|
|
|
|
/**
|
|
* @enum {string}
|
|
*/
|
|
ol.ModifyEventType = {
|
|
/**
|
|
* Triggered upon feature modification start
|
|
* @event ol.ModifyEvent#modifystart
|
|
* @api
|
|
*/
|
|
MODIFYSTART: 'modifystart',
|
|
/**
|
|
* Triggered upon feature modification end
|
|
* @event ol.ModifyEvent#modifyend
|
|
* @api
|
|
*/
|
|
MODIFYEND: 'modifyend'
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* @classdesc
|
|
* Events emitted by {@link ol.interaction.Modify} instances are instances of
|
|
* this type.
|
|
*
|
|
* @constructor
|
|
* @extends {goog.events.Event}
|
|
* @implements {oli.ModifyEvent}
|
|
* @param {ol.ModifyEventType} type Type.
|
|
* @param {ol.Collection.<ol.Feature>} features The features modified.
|
|
* @param {ol.MapBrowserPointerEvent} mapBrowserPointerEvent Associated
|
|
* {@link ol.MapBrowserPointerEvent}.
|
|
*/
|
|
ol.ModifyEvent = function(type, features, mapBrowserPointerEvent) {
|
|
|
|
goog.base(this, type);
|
|
|
|
/**
|
|
* The features being modified.
|
|
* @type {ol.Collection.<ol.Feature>}
|
|
* @api
|
|
*/
|
|
this.features = features;
|
|
|
|
/**
|
|
* Associated {@link ol.MapBrowserPointerEvent}.
|
|
* @type {ol.MapBrowserPointerEvent}
|
|
* @api
|
|
*/
|
|
this.mapBrowserPointerEvent = mapBrowserPointerEvent;
|
|
};
|
|
goog.inherits(ol.ModifyEvent, goog.events.Event);
|
|
|
|
|
|
/**
|
|
* @typedef {{depth: (Array.<number>|undefined),
|
|
* feature: ol.Feature,
|
|
* geometry: ol.geom.SimpleGeometry,
|
|
* index: (number|undefined),
|
|
* segment: Array.<ol.Extent>}}
|
|
*/
|
|
ol.interaction.SegmentDataType;
|
|
|
|
|
|
|
|
/**
|
|
* @classdesc
|
|
* Interaction for modifying feature geometries.
|
|
*
|
|
* @constructor
|
|
* @extends {ol.interaction.Pointer}
|
|
* @param {olx.interaction.ModifyOptions} options Options.
|
|
* @fires ol.ModifyEvent
|
|
* @api
|
|
*/
|
|
ol.interaction.Modify = function(options) {
|
|
|
|
goog.base(this, {
|
|
handleDownEvent: ol.interaction.Modify.handleDownEvent_,
|
|
handleDragEvent: ol.interaction.Modify.handleDragEvent_,
|
|
handleEvent: ol.interaction.Modify.handleEvent,
|
|
handleUpEvent: ol.interaction.Modify.handleUpEvent_
|
|
});
|
|
|
|
/**
|
|
* @type {ol.events.ConditionType}
|
|
* @private
|
|
*/
|
|
this.deleteCondition_ = goog.isDef(options.deleteCondition) ?
|
|
options.deleteCondition :
|
|
/** @type {ol.events.ConditionType} */ (goog.functions.and(
|
|
ol.events.condition.noModifierKeys,
|
|
ol.events.condition.singleClick));
|
|
|
|
/**
|
|
* Editing vertex.
|
|
* @type {ol.Feature}
|
|
* @private
|
|
*/
|
|
this.vertexFeature_ = null;
|
|
|
|
/**
|
|
* Segments intersecting {@link this.vertexFeature_} by segment uid.
|
|
* @type {Object.<string, boolean>}
|
|
* @private
|
|
*/
|
|
this.vertexSegments_ = null;
|
|
|
|
/**
|
|
* @type {ol.Pixel}
|
|
* @private
|
|
*/
|
|
this.lastPixel_ = [0, 0];
|
|
|
|
/**
|
|
* Keep track of the last inserted pixel location to avoid
|
|
* unintentional deletion.
|
|
* @type {ol.Pixel}
|
|
* @private
|
|
*/
|
|
this.lastNewVertexPixel_ = [NaN, NaN];
|
|
|
|
/**
|
|
* Segment RTree for each layer
|
|
* @type {Object.<*, ol.structs.RBush>}
|
|
* @private
|
|
*/
|
|
this.rBush_ = new ol.structs.RBush();
|
|
|
|
/**
|
|
* @type {number}
|
|
* @private
|
|
*/
|
|
this.pixelTolerance_ = goog.isDef(options.pixelTolerance) ?
|
|
options.pixelTolerance : 10;
|
|
|
|
/**
|
|
* @type {boolean}
|
|
* @private
|
|
*/
|
|
this.snappedToVertex_ = false;
|
|
|
|
/**
|
|
* @type {Array}
|
|
* @private
|
|
*/
|
|
this.dragSegments_ = null;
|
|
|
|
/**
|
|
* Draw overlay where are sketch features are drawn.
|
|
* @type {ol.layer.Vector}
|
|
* @private
|
|
*/
|
|
this.overlay_ = new ol.layer.Vector({
|
|
source: new ol.source.Vector({
|
|
useSpatialIndex: false,
|
|
wrapX: goog.isDef(options.wrapX) ? options.wrapX : false
|
|
}),
|
|
style: goog.isDef(options.style) ? options.style :
|
|
ol.interaction.Modify.getDefaultStyleFunction(),
|
|
updateWhileAnimating: true,
|
|
updateWhileInteracting: true
|
|
});
|
|
|
|
/**
|
|
* @const
|
|
* @private
|
|
* @type {Object.<string, function(ol.Feature, ol.geom.Geometry)> }
|
|
*/
|
|
this.SEGMENT_WRITERS_ = {
|
|
'Point': this.writePointGeometry_,
|
|
'LineString': this.writeLineStringGeometry_,
|
|
'LinearRing': this.writeLineStringGeometry_,
|
|
'Polygon': this.writePolygonGeometry_,
|
|
'MultiPoint': this.writeMultiPointGeometry_,
|
|
'MultiLineString': this.writeMultiLineStringGeometry_,
|
|
'MultiPolygon': this.writeMultiPolygonGeometry_,
|
|
'GeometryCollection': this.writeGeometryCollectionGeometry_
|
|
};
|
|
|
|
/**
|
|
* @type {ol.Collection.<ol.Feature>}
|
|
* @private
|
|
*/
|
|
this.features_ = options.features;
|
|
|
|
this.features_.forEach(this.addFeature_, this);
|
|
goog.events.listen(this.features_, ol.CollectionEventType.ADD,
|
|
this.handleFeatureAdd_, false, this);
|
|
goog.events.listen(this.features_, ol.CollectionEventType.REMOVE,
|
|
this.handleFeatureRemove_, false, this);
|
|
|
|
};
|
|
goog.inherits(ol.interaction.Modify, ol.interaction.Pointer);
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.addFeature_ = function(feature) {
|
|
var geometry = feature.getGeometry();
|
|
if (goog.isDef(this.SEGMENT_WRITERS_[geometry.getType()])) {
|
|
this.SEGMENT_WRITERS_[geometry.getType()].call(this, feature, geometry);
|
|
}
|
|
var map = this.getMap();
|
|
if (!goog.isNull(map)) {
|
|
this.handlePointerAtPixel_(this.lastPixel_, map);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.interaction.Modify.prototype.setMap = function(map) {
|
|
this.overlay_.setMap(map);
|
|
goog.base(this, 'setMap', map);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.CollectionEvent} evt Event.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.handleFeatureAdd_ = function(evt) {
|
|
var feature = evt.element;
|
|
goog.asserts.assertInstanceof(feature, ol.Feature,
|
|
'feature should be an ol.Feature');
|
|
this.addFeature_(feature);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.CollectionEvent} evt Event.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.handleFeatureRemove_ = function(evt) {
|
|
var feature = evt.element;
|
|
var rBush = this.rBush_;
|
|
var i, nodesToRemove = [];
|
|
rBush.forEachInExtent(feature.getGeometry().getExtent(), function(node) {
|
|
if (feature === node.feature) {
|
|
nodesToRemove.push(node);
|
|
}
|
|
});
|
|
for (i = nodesToRemove.length - 1; i >= 0; --i) {
|
|
rBush.remove(nodesToRemove[i]);
|
|
}
|
|
// There remains only vertexFeature…
|
|
if (!goog.isNull(this.vertexFeature_) &&
|
|
this.features_.getLength() === 0) {
|
|
this.overlay_.getSource().removeFeature(this.vertexFeature_);
|
|
this.vertexFeature_ = null;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.Point} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.writePointGeometry_ =
|
|
function(feature, geometry) {
|
|
var coordinates = geometry.getCoordinates();
|
|
var segmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
feature: feature,
|
|
geometry: geometry,
|
|
segment: [coordinates, coordinates]
|
|
});
|
|
this.rBush_.insert(geometry.getExtent(), segmentData);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.MultiPoint} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.writeMultiPointGeometry_ =
|
|
function(feature, geometry) {
|
|
var points = geometry.getCoordinates();
|
|
var coordinates, i, ii, segmentData;
|
|
for (i = 0, ii = points.length; i < ii; ++i) {
|
|
coordinates = points[i];
|
|
segmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
feature: feature,
|
|
geometry: geometry,
|
|
depth: [i],
|
|
index: i,
|
|
segment: [coordinates, coordinates]
|
|
});
|
|
this.rBush_.insert(geometry.getExtent(), segmentData);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.LineString} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.writeLineStringGeometry_ =
|
|
function(feature, geometry) {
|
|
var coordinates = geometry.getCoordinates();
|
|
var i, ii, segment, segmentData;
|
|
for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
|
|
segment = coordinates.slice(i, i + 2);
|
|
segmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
feature: feature,
|
|
geometry: geometry,
|
|
index: i,
|
|
segment: segment
|
|
});
|
|
this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.MultiLineString} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.writeMultiLineStringGeometry_ =
|
|
function(feature, geometry) {
|
|
var lines = geometry.getCoordinates();
|
|
var coordinates, i, ii, j, jj, segment, segmentData;
|
|
for (j = 0, jj = lines.length; j < jj; ++j) {
|
|
coordinates = lines[j];
|
|
for (i = 0, ii = coordinates.length - 1; i < ii; ++i) {
|
|
segment = coordinates.slice(i, i + 2);
|
|
segmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
feature: feature,
|
|
geometry: geometry,
|
|
depth: [j],
|
|
index: i,
|
|
segment: segment
|
|
});
|
|
this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.Polygon} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.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.SegmentDataType} */ ({
|
|
feature: feature,
|
|
geometry: geometry,
|
|
depth: [j],
|
|
index: i,
|
|
segment: segment
|
|
});
|
|
this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.MultiPolygon} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.writeMultiPolygonGeometry_ =
|
|
function(feature, geometry) {
|
|
var polygons = geometry.getCoordinates();
|
|
var coordinates, i, ii, j, jj, k, kk, rings, segment, segmentData;
|
|
for (k = 0, kk = polygons.length; k < kk; ++k) {
|
|
rings = polygons[k];
|
|
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.SegmentDataType} */ ({
|
|
feature: feature,
|
|
geometry: geometry,
|
|
depth: [j, k],
|
|
index: i,
|
|
segment: segment
|
|
});
|
|
this.rBush_.insert(ol.extent.boundingExtent(segment), segmentData);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Feature} feature Feature
|
|
* @param {ol.geom.GeometryCollection} geometry Geometry.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.writeGeometryCollectionGeometry_ =
|
|
function(feature, geometry) {
|
|
var i, geometries = geometry.getGeometriesArray();
|
|
for (i = 0; i < geometries.length; ++i) {
|
|
this.SEGMENT_WRITERS_[geometries[i].getType()].call(
|
|
this, feature, geometries[i]);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Coordinate} coordinates Coordinates.
|
|
* @return {ol.Feature} Vertex feature.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.createOrUpdateVertexFeature_ =
|
|
function(coordinates) {
|
|
var vertexFeature = this.vertexFeature_;
|
|
if (goog.isNull(vertexFeature)) {
|
|
vertexFeature = new ol.Feature(new ol.geom.Point(coordinates));
|
|
this.vertexFeature_ = vertexFeature;
|
|
this.overlay_.getSource().addFeature(vertexFeature);
|
|
} else {
|
|
var geometry = /** @type {ol.geom.Point} */ (vertexFeature.getGeometry());
|
|
geometry.setCoordinates(coordinates);
|
|
}
|
|
return vertexFeature;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.interaction.SegmentDataType} a
|
|
* @param {ol.interaction.SegmentDataType} b
|
|
* @return {number}
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.compareIndexes_ = function(a, b) {
|
|
return a.index - b.index;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.MapBrowserPointerEvent} evt Event.
|
|
* @return {boolean} Start drag sequence?
|
|
* @this {ol.interaction.Modify}
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.handleDownEvent_ = function(evt) {
|
|
this.handlePointerAtPixel_(evt.pixel, evt.map);
|
|
this.dragSegments_ = [];
|
|
var vertexFeature = this.vertexFeature_;
|
|
if (!goog.isNull(vertexFeature)) {
|
|
var insertVertices = [];
|
|
var geometry = /** @type {ol.geom.Point} */ (vertexFeature.getGeometry());
|
|
var vertex = geometry.getCoordinates();
|
|
var vertexExtent = ol.extent.boundingExtent([vertex]);
|
|
var segmentDataMatches = this.rBush_.getInExtent(vertexExtent);
|
|
var componentSegments = {};
|
|
segmentDataMatches.sort(ol.interaction.Modify.compareIndexes_);
|
|
for (var i = 0, ii = segmentDataMatches.length; i < ii; ++i) {
|
|
var segmentDataMatch = segmentDataMatches[i];
|
|
var segment = segmentDataMatch.segment;
|
|
var uid = goog.getUid(segmentDataMatch.feature);
|
|
var depth = segmentDataMatch.depth;
|
|
if (depth) {
|
|
uid += '-' + depth.join('-'); // separate feature components
|
|
}
|
|
if (!componentSegments[uid]) {
|
|
componentSegments[uid] = new Array(2);
|
|
}
|
|
if (ol.coordinate.equals(segment[0], vertex) &&
|
|
!componentSegments[uid][0]) {
|
|
this.dragSegments_.push([segmentDataMatch, 0]);
|
|
componentSegments[uid][0] = segmentDataMatch;
|
|
} else if (ol.coordinate.equals(segment[1], vertex) &&
|
|
!componentSegments[uid][1]) {
|
|
|
|
// prevent dragging closed linestrings by the connecting node
|
|
if ((segmentDataMatch.geometry.getType() ===
|
|
ol.geom.GeometryType.LINE_STRING ||
|
|
segmentDataMatch.geometry.getType() ===
|
|
ol.geom.GeometryType.MULTI_LINE_STRING) &&
|
|
componentSegments[uid][0] &&
|
|
componentSegments[uid][0].index === 0) {
|
|
continue;
|
|
}
|
|
|
|
this.dragSegments_.push([segmentDataMatch, 1]);
|
|
componentSegments[uid][1] = segmentDataMatch;
|
|
} else if (goog.getUid(segment) in this.vertexSegments_ &&
|
|
(!componentSegments[uid][0] && !componentSegments[uid][1])) {
|
|
insertVertices.push([segmentDataMatch, vertex]);
|
|
}
|
|
}
|
|
for (i = insertVertices.length - 1; i >= 0; --i) {
|
|
this.insertVertex_.apply(this, insertVertices[i]);
|
|
}
|
|
this.dispatchEvent(new ol.ModifyEvent(ol.ModifyEventType.MODIFYSTART,
|
|
this.features_, evt));
|
|
}
|
|
return !goog.isNull(this.vertexFeature_);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.MapBrowserPointerEvent} evt Event.
|
|
* @this {ol.interaction.Modify}
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.handleDragEvent_ = function(evt) {
|
|
var vertex = evt.coordinate;
|
|
for (var i = 0, ii = this.dragSegments_.length; i < ii; ++i) {
|
|
var dragSegment = this.dragSegments_[i];
|
|
var segmentData = dragSegment[0];
|
|
var depth = segmentData.depth;
|
|
var geometry = segmentData.geometry;
|
|
var coordinates = geometry.getCoordinates();
|
|
var segment = segmentData.segment;
|
|
var index = dragSegment[1];
|
|
|
|
while (vertex.length < geometry.getStride()) {
|
|
vertex.push(0);
|
|
}
|
|
|
|
switch (geometry.getType()) {
|
|
case ol.geom.GeometryType.POINT:
|
|
coordinates = vertex;
|
|
segment[0] = segment[1] = vertex;
|
|
break;
|
|
case ol.geom.GeometryType.MULTI_POINT:
|
|
coordinates[segmentData.index] = vertex;
|
|
segment[0] = segment[1] = vertex;
|
|
break;
|
|
case ol.geom.GeometryType.LINE_STRING:
|
|
coordinates[segmentData.index + index] = vertex;
|
|
segment[index] = vertex;
|
|
break;
|
|
case ol.geom.GeometryType.MULTI_LINE_STRING:
|
|
coordinates[depth[0]][segmentData.index + index] = vertex;
|
|
segment[index] = vertex;
|
|
break;
|
|
case ol.geom.GeometryType.POLYGON:
|
|
coordinates[depth[0]][segmentData.index + index] = vertex;
|
|
segment[index] = vertex;
|
|
break;
|
|
case ol.geom.GeometryType.MULTI_POLYGON:
|
|
coordinates[depth[1]][depth[0]][segmentData.index + index] = vertex;
|
|
segment[index] = vertex;
|
|
break;
|
|
}
|
|
|
|
geometry.setCoordinates(coordinates);
|
|
}
|
|
this.createOrUpdateVertexFeature_(vertex);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.MapBrowserPointerEvent} evt Event.
|
|
* @return {boolean} Stop drag sequence?
|
|
* @this {ol.interaction.Modify}
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.handleUpEvent_ = function(evt) {
|
|
var segmentData;
|
|
for (var i = this.dragSegments_.length - 1; i >= 0; --i) {
|
|
segmentData = this.dragSegments_[i][0];
|
|
this.rBush_.update(ol.extent.boundingExtent(segmentData.segment),
|
|
segmentData);
|
|
}
|
|
this.dispatchEvent(new ol.ModifyEvent(ol.ModifyEventType.MODIFYEND,
|
|
this.features_, evt));
|
|
return false;
|
|
};
|
|
|
|
|
|
/**
|
|
* Handles the {@link ol.MapBrowserEvent map browser event} and may modify the
|
|
* geometry.
|
|
* @param {ol.MapBrowserEvent} mapBrowserEvent Map browser event.
|
|
* @return {boolean} `false` to stop event propagation.
|
|
* @this {ol.interaction.Modify}
|
|
* @api
|
|
*/
|
|
ol.interaction.Modify.handleEvent = function(mapBrowserEvent) {
|
|
var handled;
|
|
if (!mapBrowserEvent.map.getView().getHints()[ol.ViewHint.INTERACTING] &&
|
|
mapBrowserEvent.type == ol.MapBrowserEvent.EventType.POINTERMOVE &&
|
|
!this.handlingDownUpSequence) {
|
|
this.handlePointerMove_(mapBrowserEvent);
|
|
}
|
|
if (!goog.isNull(this.vertexFeature_) &&
|
|
this.deleteCondition_(mapBrowserEvent)) {
|
|
if (!(this.lastNewVertexPixel_[0] === this.lastPixel_[0] &&
|
|
this.lastNewVertexPixel_[1] === this.lastPixel_[1])) {
|
|
var geometry = this.vertexFeature_.getGeometry();
|
|
goog.asserts.assertInstanceof(geometry, ol.geom.Point,
|
|
'geometry should be an ol.geom.Point');
|
|
handled = this.removeVertex_();
|
|
} else {
|
|
handled = true;
|
|
}
|
|
}
|
|
return ol.interaction.Pointer.handleEvent.call(this, mapBrowserEvent) &&
|
|
!handled;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.MapBrowserEvent} evt Event.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.handlePointerMove_ = function(evt) {
|
|
this.lastPixel_ = evt.pixel;
|
|
this.handlePointerAtPixel_(evt.pixel, evt.map);
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.Pixel} pixel Pixel
|
|
* @param {ol.Map} map Map.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.handlePointerAtPixel_ = function(pixel, map) {
|
|
var pixelCoordinate = map.getCoordinateFromPixel(pixel);
|
|
var sortByDistance = function(a, b) {
|
|
return ol.coordinate.squaredDistanceToSegment(pixelCoordinate, a.segment) -
|
|
ol.coordinate.squaredDistanceToSegment(pixelCoordinate, b.segment);
|
|
};
|
|
|
|
var lowerLeft = map.getCoordinateFromPixel(
|
|
[pixel[0] - this.pixelTolerance_, pixel[1] + this.pixelTolerance_]);
|
|
var upperRight = map.getCoordinateFromPixel(
|
|
[pixel[0] + this.pixelTolerance_, pixel[1] - this.pixelTolerance_]);
|
|
var box = ol.extent.boundingExtent([lowerLeft, upperRight]);
|
|
|
|
var rBush = this.rBush_;
|
|
var nodes = rBush.getInExtent(box);
|
|
if (nodes.length > 0) {
|
|
nodes.sort(sortByDistance);
|
|
var node = nodes[0];
|
|
var closestSegment = node.segment;
|
|
var vertex = (ol.coordinate.closestOnSegment(pixelCoordinate,
|
|
closestSegment));
|
|
var vertexPixel = map.getPixelFromCoordinate(vertex);
|
|
if (Math.sqrt(ol.coordinate.squaredDistance(pixel, vertexPixel)) <=
|
|
this.pixelTolerance_) {
|
|
var pixel1 = map.getPixelFromCoordinate(closestSegment[0]);
|
|
var pixel2 = map.getPixelFromCoordinate(closestSegment[1]);
|
|
var squaredDist1 = ol.coordinate.squaredDistance(vertexPixel, pixel1);
|
|
var squaredDist2 = ol.coordinate.squaredDistance(vertexPixel, pixel2);
|
|
var dist = Math.sqrt(Math.min(squaredDist1, squaredDist2));
|
|
this.snappedToVertex_ = dist <= this.pixelTolerance_;
|
|
if (this.snappedToVertex_) {
|
|
vertex = squaredDist1 > squaredDist2 ?
|
|
closestSegment[1] : closestSegment[0];
|
|
}
|
|
this.createOrUpdateVertexFeature_(vertex);
|
|
var vertexSegments = {};
|
|
vertexSegments[goog.getUid(closestSegment)] = true;
|
|
var segment;
|
|
for (var i = 1, ii = nodes.length; i < ii; ++i) {
|
|
segment = nodes[i].segment;
|
|
if ((ol.coordinate.equals(closestSegment[0], segment[0]) &&
|
|
ol.coordinate.equals(closestSegment[1], segment[1]) ||
|
|
(ol.coordinate.equals(closestSegment[0], segment[1]) &&
|
|
ol.coordinate.equals(closestSegment[1], segment[0])))) {
|
|
vertexSegments[goog.getUid(segment)] = true;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
this.vertexSegments_ = vertexSegments;
|
|
return;
|
|
}
|
|
}
|
|
if (!goog.isNull(this.vertexFeature_)) {
|
|
this.overlay_.getSource().removeFeature(this.vertexFeature_);
|
|
this.vertexFeature_ = null;
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.interaction.SegmentDataType} segmentData Segment data.
|
|
* @param {ol.Coordinate} vertex Vertex.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.insertVertex_ = function(segmentData, vertex) {
|
|
var segment = segmentData.segment;
|
|
var feature = segmentData.feature;
|
|
var geometry = segmentData.geometry;
|
|
var depth = segmentData.depth;
|
|
var index = segmentData.index;
|
|
var coordinates;
|
|
|
|
while (vertex.length < geometry.getStride()) {
|
|
vertex.push(0);
|
|
}
|
|
|
|
switch (geometry.getType()) {
|
|
case ol.geom.GeometryType.MULTI_LINE_STRING:
|
|
goog.asserts.assertInstanceof(geometry, ol.geom.MultiLineString,
|
|
'geometry should be an ol.geom.MultiLineString');
|
|
coordinates = geometry.getCoordinates();
|
|
coordinates[depth[0]].splice(index + 1, 0, vertex);
|
|
break;
|
|
case ol.geom.GeometryType.POLYGON:
|
|
goog.asserts.assertInstanceof(geometry, ol.geom.Polygon,
|
|
'geometry should be an ol.geom.Polygon');
|
|
coordinates = geometry.getCoordinates();
|
|
coordinates[depth[0]].splice(index + 1, 0, vertex);
|
|
break;
|
|
case ol.geom.GeometryType.MULTI_POLYGON:
|
|
goog.asserts.assertInstanceof(geometry, ol.geom.MultiPolygon,
|
|
'geometry should be an ol.geom.MultiPolygon');
|
|
coordinates = geometry.getCoordinates();
|
|
coordinates[depth[1]][depth[0]].splice(index + 1, 0, vertex);
|
|
break;
|
|
case ol.geom.GeometryType.LINE_STRING:
|
|
goog.asserts.assertInstanceof(geometry, ol.geom.LineString,
|
|
'geometry should be an ol.geom.LineString');
|
|
coordinates = geometry.getCoordinates();
|
|
coordinates.splice(index + 1, 0, vertex);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
geometry.setCoordinates(coordinates);
|
|
var rTree = this.rBush_;
|
|
goog.asserts.assert(goog.isDef(segment), 'segment should be defined');
|
|
rTree.remove(segmentData);
|
|
goog.asserts.assert(goog.isDef(index), 'index should be defined');
|
|
this.updateSegmentIndices_(geometry, index, depth, 1);
|
|
var newSegmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
segment: [segment[0], vertex],
|
|
feature: feature,
|
|
geometry: geometry,
|
|
depth: depth,
|
|
index: index
|
|
});
|
|
rTree.insert(ol.extent.boundingExtent(newSegmentData.segment),
|
|
newSegmentData);
|
|
this.dragSegments_.push([newSegmentData, 1]);
|
|
|
|
var newSegmentData2 = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
segment: [vertex, segment[1]],
|
|
feature: feature,
|
|
geometry: geometry,
|
|
depth: depth,
|
|
index: index + 1
|
|
});
|
|
rTree.insert(ol.extent.boundingExtent(newSegmentData2.segment),
|
|
newSegmentData2);
|
|
this.dragSegments_.push([newSegmentData2, 0]);
|
|
this.lastNewVertexPixel_ = this.lastPixel_;
|
|
};
|
|
|
|
|
|
/**
|
|
* Removes a vertex from all matching features.
|
|
* @return {boolean} True when a vertex was removed.
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.removeVertex_ = function() {
|
|
var dragSegments = this.dragSegments_;
|
|
var segmentsByFeature = {};
|
|
var component, coordinates, dragSegment, geometry, i, index, left;
|
|
var newIndex, newSegment, right, segmentData, uid, deleted;
|
|
for (i = dragSegments.length - 1; i >= 0; --i) {
|
|
dragSegment = dragSegments[i];
|
|
segmentData = dragSegment[0];
|
|
geometry = segmentData.geometry;
|
|
coordinates = geometry.getCoordinates();
|
|
uid = goog.getUid(segmentData.feature);
|
|
if (segmentData.depth) {
|
|
// separate feature components
|
|
uid += '-' + segmentData.depth.join('-');
|
|
}
|
|
left = right = index = undefined;
|
|
if (dragSegment[1] === 0) {
|
|
right = segmentData;
|
|
index = segmentData.index;
|
|
} else if (dragSegment[1] == 1) {
|
|
left = segmentData;
|
|
index = segmentData.index + 1;
|
|
}
|
|
if (!(uid in segmentsByFeature)) {
|
|
segmentsByFeature[uid] = [left, right, index];
|
|
}
|
|
newSegment = segmentsByFeature[uid];
|
|
if (goog.isDef(left)) {
|
|
newSegment[0] = left;
|
|
}
|
|
if (goog.isDef(right)) {
|
|
newSegment[1] = right;
|
|
}
|
|
if (goog.isDef(newSegment[0]) && goog.isDef(newSegment[1])) {
|
|
component = coordinates;
|
|
deleted = false;
|
|
newIndex = index - 1;
|
|
switch (geometry.getType()) {
|
|
case ol.geom.GeometryType.MULTI_LINE_STRING:
|
|
coordinates[segmentData.depth[0]].splice(index, 1);
|
|
deleted = true;
|
|
break;
|
|
case ol.geom.GeometryType.LINE_STRING:
|
|
coordinates.splice(index, 1);
|
|
deleted = true;
|
|
break;
|
|
case ol.geom.GeometryType.MULTI_POLYGON:
|
|
component = component[segmentData.depth[1]];
|
|
/* falls through */
|
|
case ol.geom.GeometryType.POLYGON:
|
|
component = component[segmentData.depth[0]];
|
|
if (component.length > 4) {
|
|
if (index == component.length - 1) {
|
|
index = 0;
|
|
}
|
|
component.splice(index, 1);
|
|
deleted = true;
|
|
if (index === 0) {
|
|
// close the ring again
|
|
component.pop();
|
|
component.push(component[0]);
|
|
newIndex = component.length - 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (deleted) {
|
|
this.rBush_.remove(newSegment[0]);
|
|
this.rBush_.remove(newSegment[1]);
|
|
geometry.setCoordinates(coordinates);
|
|
goog.asserts.assert(newIndex >= 0, 'newIndex should be larger than 0');
|
|
var newSegmentData = /** @type {ol.interaction.SegmentDataType} */ ({
|
|
depth: segmentData.depth,
|
|
feature: segmentData.feature,
|
|
geometry: segmentData.geometry,
|
|
index: newIndex,
|
|
segment: [newSegment[0].segment[0], newSegment[1].segment[1]]
|
|
});
|
|
this.rBush_.insert(ol.extent.boundingExtent(newSegmentData.segment),
|
|
newSegmentData);
|
|
this.updateSegmentIndices_(geometry, index, segmentData.depth, -1);
|
|
|
|
this.overlay_.getSource().removeFeature(this.vertexFeature_);
|
|
this.vertexFeature_ = null;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.geom.SimpleGeometry} geometry Geometry.
|
|
* @param {number} index Index.
|
|
* @param {Array.<number>|undefined} depth Depth.
|
|
* @param {number} delta Delta (1 or -1).
|
|
* @private
|
|
*/
|
|
ol.interaction.Modify.prototype.updateSegmentIndices_ = function(
|
|
geometry, index, depth, delta) {
|
|
this.rBush_.forEachInExtent(geometry.getExtent(), function(segmentDataMatch) {
|
|
if (segmentDataMatch.geometry === geometry &&
|
|
(!goog.isDef(depth) ||
|
|
goog.array.equals(segmentDataMatch.depth, depth)) &&
|
|
segmentDataMatch.index > index) {
|
|
segmentDataMatch.index += delta;
|
|
}
|
|
});
|
|
};
|
|
|
|
|
|
/**
|
|
* @return {ol.style.StyleFunction} Styles.
|
|
*/
|
|
ol.interaction.Modify.getDefaultStyleFunction = function() {
|
|
var style = ol.style.createDefaultEditingStyles();
|
|
return function(feature, resolution) {
|
|
return style[ol.geom.GeometryType.POINT];
|
|
};
|
|
};
|