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Construct individual points directly from flat coordinates

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This commit is contained in:
Tom Payne
2014-03-10 15:55:49 +01:00
parent 033e2e7dd8
commit 361d31b596
2 changed files with 19 additions and 4 deletions
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12
src/ol/geom/multipoint.js
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@@ -90,12 +90,16 @@ ol.geom.MultiPoint.prototype.getCoordinates = function() {
* @todo stability experimental
*/
ol.geom.MultiPoint.prototype.getPoints = function() {
// FIXME we should construct the points from the flat coordinates
var coordinates = this.getCoordinates();
var flatCoordinates = this.flatCoordinates;
var layout = this.layout;
var stride = this.stride;
/** @type {Array.<ol.geom.Point>} */
var points = [];
var i, ii;
for (i = 0, ii = coordinates.length; i < ii; ++i) {
points.push(new ol.geom.Point(coordinates[i]));
for (i = 0, ii = flatCoordinates.length; i < ii; i += stride) {
var point = new ol.geom.Point(null);
point.setFlatCoordinates(layout, flatCoordinates.slice(i, i + stride));
points.push(point);
}
return points;
};

11
test/spec/ol/geom/multipoint.test.js
View File

@@ -132,6 +132,17 @@ describe('ol.geom.MultiPoint', function() {
expect(multiPoint.getStride()).to.be(3);
});
it('can return all points', function() {
var points = multiPoint.getPoints();
expect(points).to.have.length(2);
expect(points[0]).to.be.an(ol.geom.Point);
expect(points[0].getLayout()).to.be(ol.geom.GeometryLayout.XYM);
expect(points[0].getCoordinates()).to.eql([1, 2, 3]);
expect(points[1]).to.be.an(ol.geom.Point);
expect(points[1].getLayout()).to.be(ol.geom.GeometryLayout.XYM);
expect(points[1].getCoordinates()).to.eql([4, 5, 6]);
});
});
describe('construct with 4D coordinates', function() {