b52d283641
The ol.geom.SharedVertices structure represents a flattened array of vertex coordinates. This is intended to support optimal WebGL rendering.
80 lines
2.5 KiB
JavaScript
80 lines
2.5 KiB
JavaScript
goog.provide('ol.test.geom.GeometryCollection');
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describe('ol.geom.GeometryCollection', function() {
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var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]],
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inner1 = [[1, 1], [2, 1], [2, 2], [1, 2], [1, 1]],
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inner2 = [[8, 8], [9, 8], [9, 9], [8, 9], [8, 8]];
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describe('constructor', function() {
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it('creates a geometry collection from an array of geometries', function() {
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var point = new ol.geom.Point([10, 20]);
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var line = new ol.geom.LineString([[10, 20], [30, 40]]);
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var poly = new ol.geom.Polygon([outer, inner1, inner2]);
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var multi = new ol.geom.GeometryCollection([point, line, poly]);
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expect(multi).toBeA(ol.geom.GeometryCollection);
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expect(multi).toBeA(ol.geom.Geometry);
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});
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});
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describe('#components', function() {
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it('is an array of geometries', function() {
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var point = new ol.geom.Point([10, 20]);
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var line = new ol.geom.LineString([[10, 20], [30, 40]]);
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var poly = new ol.geom.Polygon([outer, inner1, inner2]);
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var multi = new ol.geom.GeometryCollection([point, line, poly]);
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expect(multi.components.length).toBe(3);
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expect(multi.components[0]).toBeA(ol.geom.Point);
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expect(multi.components[1]).toBeA(ol.geom.LineString);
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expect(multi.components[2]).toBeA(ol.geom.Polygon);
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});
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});
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describe('#dimension', function() {
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it('can be 2', function() {
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var point = new ol.geom.Point([10, 20]);
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var line = new ol.geom.LineString([[10, 20], [30, 40]]);
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var poly = new ol.geom.Polygon([outer, inner1, inner2]);
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var multi = new ol.geom.GeometryCollection([point, line, poly]);
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expect(multi.dimension).toBe(2);
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});
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it('can be 3', function() {
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var multi = new ol.geom.GeometryCollection([
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new ol.geom.Point([30, 40, 50])
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]);
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expect(multi.dimension).toBe(3);
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});
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});
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describe('#getBounds()', function() {
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it('returns the bounding extent', function() {
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var point = new ol.geom.Point([10, 2]);
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var line = new ol.geom.LineString([[1, 20], [30, 40]]);
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var multi = new ol.geom.GeometryCollection([point, line]);
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var bounds = multi.getBounds();
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expect(bounds.minX).toBe(1);
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expect(bounds.minY).toBe(2);
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expect(bounds.maxX).toBe(30);
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expect(bounds.maxY).toBe(40);
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});
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});
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});
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goog.require('ol.geom.Geometry');
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goog.require('ol.geom.GeometryCollection');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.Point');
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goog.require('ol.geom.Polygon');
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