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Add ol.geom.MultiLineString#setLineStrings

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This commit is contained in:
Tom Payne
2013-12-20 16:33:26 +01:00
parent bd247fa5d7
commit 0bf34a52ff
2 changed files with 42 additions and 0 deletions
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25
src/ol/geom/multilinestring.js
View File

@@ -1,5 +1,7 @@
goog.provide('ol.geom.MultiLineString');
goog.require('goog.array');
goog.require('goog.asserts');
goog.require('ol.extent');
goog.require('ol.geom.LineString');
goog.require('ol.geom.SimpleGeometry');
@@ -163,3 +165,26 @@ ol.geom.MultiLineString.prototype.setFlatCoordinates =
this.ends_ = ends;
this.dispatchChangeEvent();
};
/**
* @param {Array.<ol.geom.LineString>} lineStrings LineStrings.
*/
ol.geom.MultiLineString.prototype.setLineStrings = function(lineStrings) {
var layout = ol.geom.GeometryLayout.XY;
var flatCoordinates = [];
var ends = [];
var i, ii;
for (i = 0, ii = lineStrings.length; i < ii; ++i) {
var lineString = lineStrings[i];
if (i === 0) {
layout = lineString.getLayout();
} else {
// FIXME better handle the case of non-matching layouts
goog.asserts.assert(lineString.getLayout() == layout);
}
goog.array.extend(flatCoordinates, lineString.getFlatCoordinates());
ends.push(flatCoordinates.length);
}
this.setFlatCoordinates(layout, flatCoordinates, ends);
};

17
test/spec/ol/geom/multilinestring.test.js
View File

@@ -168,8 +168,25 @@ describe('ol.geom.MultiLineString', function() {
});
describe('#setLineStrings', function() {
it('sets the line strings', function() {
var multiLineString = new ol.geom.MultiLineString(null);
var lineString1 = new ol.geom.LineString([[1, 2], [3, 4]]);
var lineString2 = new ol.geom.LineString([[5, 6], [7, 8]]);
multiLineString.setLineStrings([lineString1, lineString2]);
expect(multiLineString.getFlatCoordinates()).to.eql(
[1, 2, 3, 4, 5, 6, 7, 8]);
expect(multiLineString.getEnds()).to.eql([4, 8]);
var coordinates = multiLineString.getCoordinates();
expect(coordinates[0]).to.eql(lineString1.getCoordinates());
expect(coordinates[1]).to.eql(lineString2.getCoordinates());
});
});
});
goog.require('ol.extent');
goog.require('ol.geom.LineString');
goog.require('ol.geom.MultiLineString');