Imports cased like the filename
This commit is contained in:
Tim Schaub
310
src/ol/geom/MultiLineString.js
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310
src/ol/geom/MultiLineString.js
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goog.provide('ol.geom.MultiLineString');
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goog.require('ol');
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goog.require('ol.array');
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goog.require('ol.extent');
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goog.require('ol.geom.GeometryLayout');
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goog.require('ol.geom.GeometryType');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.SimpleGeometry');
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goog.require('ol.geom.flat.closest');
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goog.require('ol.geom.flat.deflate');
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goog.require('ol.geom.flat.inflate');
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goog.require('ol.geom.flat.interpolate');
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goog.require('ol.geom.flat.intersectsextent');
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goog.require('ol.geom.flat.simplify');
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/**
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* @classdesc
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* Multi-linestring geometry.
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*
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* @constructor
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* @extends {ol.geom.SimpleGeometry}
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* @param {Array.<Array.<ol.Coordinate>>} coordinates Coordinates.
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* @param {ol.geom.GeometryLayout=} opt_layout Layout.
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* @api
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*/
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ol.geom.MultiLineString = function(coordinates, opt_layout) {
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ol.geom.SimpleGeometry.call(this);
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/**
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* @type {Array.<number>}
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* @private
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*/
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this.ends_ = [];
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/**
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* @private
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* @type {number}
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*/
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this.maxDelta_ = -1;
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/**
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* @private
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* @type {number}
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*/
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this.maxDeltaRevision_ = -1;
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this.setCoordinates(coordinates, opt_layout);
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};
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ol.inherits(ol.geom.MultiLineString, ol.geom.SimpleGeometry);
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/**
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* Append the passed linestring to the multilinestring.
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* @param {ol.geom.LineString} lineString LineString.
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* @api
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*/
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ol.geom.MultiLineString.prototype.appendLineString = function(lineString) {
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if (!this.flatCoordinates) {
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this.flatCoordinates = lineString.getFlatCoordinates().slice();
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} else {
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ol.array.extend(
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this.flatCoordinates, lineString.getFlatCoordinates().slice());
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}
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this.ends_.push(this.flatCoordinates.length);
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this.changed();
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};
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/**
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* Make a complete copy of the geometry.
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* @return {!ol.geom.MultiLineString} Clone.
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* @override
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* @api
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*/
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ol.geom.MultiLineString.prototype.clone = function() {
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var multiLineString = new ol.geom.MultiLineString(null);
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multiLineString.setFlatCoordinates(
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this.layout, this.flatCoordinates.slice(), this.ends_.slice());
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return multiLineString;
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};
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/**
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* @inheritDoc
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*/
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ol.geom.MultiLineString.prototype.closestPointXY = function(x, y, closestPoint, minSquaredDistance) {
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if (minSquaredDistance <
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ol.extent.closestSquaredDistanceXY(this.getExtent(), x, y)) {
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return minSquaredDistance;
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}
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if (this.maxDeltaRevision_ != this.getRevision()) {
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this.maxDelta_ = Math.sqrt(ol.geom.flat.closest.getsMaxSquaredDelta(
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this.flatCoordinates, 0, this.ends_, this.stride, 0));
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this.maxDeltaRevision_ = this.getRevision();
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}
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return ol.geom.flat.closest.getsClosestPoint(
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this.flatCoordinates, 0, this.ends_, this.stride,
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this.maxDelta_, false, x, y, closestPoint, minSquaredDistance);
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};
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/**
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* Returns the coordinate at `m` using linear interpolation, or `null` if no
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* such coordinate exists.
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*
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* `opt_extrapolate` controls extrapolation beyond the range of Ms in the
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* MultiLineString. If `opt_extrapolate` is `true` then Ms less than the first
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* M will return the first coordinate and Ms greater than the last M will
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* return the last coordinate.
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*
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* `opt_interpolate` controls interpolation between consecutive LineStrings
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* within the MultiLineString. If `opt_interpolate` is `true` the coordinates
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* will be linearly interpolated between the last coordinate of one LineString
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* and the first coordinate of the next LineString. If `opt_interpolate` is
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* `false` then the function will return `null` for Ms falling between
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* LineStrings.
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*
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* @param {number} m M.
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* @param {boolean=} opt_extrapolate Extrapolate. Default is `false`.
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* @param {boolean=} opt_interpolate Interpolate. Default is `false`.
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* @return {ol.Coordinate} Coordinate.
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* @api
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*/
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ol.geom.MultiLineString.prototype.getCoordinateAtM = function(m, opt_extrapolate, opt_interpolate) {
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if ((this.layout != ol.geom.GeometryLayout.XYM &&
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this.layout != ol.geom.GeometryLayout.XYZM) ||
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this.flatCoordinates.length === 0) {
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return null;
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}
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var extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;
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var interpolate = opt_interpolate !== undefined ? opt_interpolate : false;
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return ol.geom.flat.interpolate.lineStringsCoordinateAtM(this.flatCoordinates, 0,
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this.ends_, this.stride, m, extrapolate, interpolate);
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};
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/**
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* Return the coordinates of the multilinestring.
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* @return {Array.<Array.<ol.Coordinate>>} Coordinates.
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* @override
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* @api
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*/
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ol.geom.MultiLineString.prototype.getCoordinates = function() {
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return ol.geom.flat.inflate.coordinatess(
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this.flatCoordinates, 0, this.ends_, this.stride);
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};
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/**
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* @return {Array.<number>} Ends.
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*/
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ol.geom.MultiLineString.prototype.getEnds = function() {
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return this.ends_;
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};
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/**
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* Return the linestring at the specified index.
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* @param {number} index Index.
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* @return {ol.geom.LineString} LineString.
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* @api
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*/
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ol.geom.MultiLineString.prototype.getLineString = function(index) {
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if (index < 0 || this.ends_.length <= index) {
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return null;
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}
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var lineString = new ol.geom.LineString(null);
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lineString.setFlatCoordinates(this.layout, this.flatCoordinates.slice(
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index === 0 ? 0 : this.ends_[index - 1], this.ends_[index]));
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return lineString;
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};
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/**
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* Return the linestrings of this multilinestring.
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* @return {Array.<ol.geom.LineString>} LineStrings.
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* @api
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*/
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ol.geom.MultiLineString.prototype.getLineStrings = function() {
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var flatCoordinates = this.flatCoordinates;
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var ends = this.ends_;
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var layout = this.layout;
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/** @type {Array.<ol.geom.LineString>} */
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var lineStrings = [];
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var offset = 0;
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var i, ii;
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for (i = 0, ii = ends.length; i < ii; ++i) {
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var end = ends[i];
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var lineString = new ol.geom.LineString(null);
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lineString.setFlatCoordinates(layout, flatCoordinates.slice(offset, end));
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lineStrings.push(lineString);
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offset = end;
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}
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return lineStrings;
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};
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/**
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* @return {Array.<number>} Flat midpoints.
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*/
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ol.geom.MultiLineString.prototype.getFlatMidpoints = function() {
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var midpoints = [];
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var flatCoordinates = this.flatCoordinates;
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var offset = 0;
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var ends = this.ends_;
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var stride = this.stride;
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var i, ii;
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for (i = 0, ii = ends.length; i < ii; ++i) {
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var end = ends[i];
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var midpoint = ol.geom.flat.interpolate.lineString(
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flatCoordinates, offset, end, stride, 0.5);
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ol.array.extend(midpoints, midpoint);
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offset = end;
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}
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return midpoints;
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};
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/**
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* @inheritDoc
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*/
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ol.geom.MultiLineString.prototype.getSimplifiedGeometryInternal = function(squaredTolerance) {
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var simplifiedFlatCoordinates = [];
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var simplifiedEnds = [];
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simplifiedFlatCoordinates.length = ol.geom.flat.simplify.douglasPeuckers(
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this.flatCoordinates, 0, this.ends_, this.stride, squaredTolerance,
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simplifiedFlatCoordinates, 0, simplifiedEnds);
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var simplifiedMultiLineString = new ol.geom.MultiLineString(null);
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simplifiedMultiLineString.setFlatCoordinates(
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ol.geom.GeometryLayout.XY, simplifiedFlatCoordinates, simplifiedEnds);
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return simplifiedMultiLineString;
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};
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/**
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* @inheritDoc
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* @api
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*/
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ol.geom.MultiLineString.prototype.getType = function() {
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return ol.geom.GeometryType.MULTI_LINE_STRING;
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};
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/**
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* @inheritDoc
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* @api
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*/
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ol.geom.MultiLineString.prototype.intersectsExtent = function(extent) {
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return ol.geom.flat.intersectsextent.lineStrings(
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this.flatCoordinates, 0, this.ends_, this.stride, extent);
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};
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/**
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* Set the coordinates of the multilinestring.
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* @param {Array.<Array.<ol.Coordinate>>} coordinates Coordinates.
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* @param {ol.geom.GeometryLayout=} opt_layout Layout.
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* @override
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* @api
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*/
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ol.geom.MultiLineString.prototype.setCoordinates = function(coordinates, opt_layout) {
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if (!coordinates) {
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this.setFlatCoordinates(ol.geom.GeometryLayout.XY, null, this.ends_);
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} else {
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this.setLayout(opt_layout, coordinates, 2);
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if (!this.flatCoordinates) {
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this.flatCoordinates = [];
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}
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var ends = ol.geom.flat.deflate.coordinatess(
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this.flatCoordinates, 0, coordinates, this.stride, this.ends_);
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this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];
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this.changed();
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}
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};
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/**
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* @param {ol.geom.GeometryLayout} layout Layout.
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* @param {Array.<number>} flatCoordinates Flat coordinates.
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* @param {Array.<number>} ends Ends.
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*/
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ol.geom.MultiLineString.prototype.setFlatCoordinates = function(layout, flatCoordinates, ends) {
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this.setFlatCoordinatesInternal(layout, flatCoordinates);
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this.ends_ = ends;
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this.changed();
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};
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/**
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* @param {Array.<ol.geom.LineString>} lineStrings LineStrings.
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*/
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ol.geom.MultiLineString.prototype.setLineStrings = function(lineStrings) {
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var layout = this.getLayout();
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var flatCoordinates = [];
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var ends = [];
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var i, ii;
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for (i = 0, ii = lineStrings.length; i < ii; ++i) {
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var lineString = lineStrings[i];
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if (i === 0) {
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layout = lineString.getLayout();
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}
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ol.array.extend(flatCoordinates, lineString.getFlatCoordinates());
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ends.push(flatCoordinates.length);
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}
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this.setFlatCoordinates(layout, flatCoordinates, ends);
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};
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