7a5e6a06d8
Instead of working with ol.Coordinate instances, transform functions work with arrays. This is in anticipation of using transform functions to transform large arrays of vertex coordinate values. The ol.projection.transform and ol.projection.transformWithCodes are slightly more convenient functions for dealing with ol.Coordinate instances. Whether we make this more consistent with the use of functions returned by ol.projection.getTransform is up for discussion.
105 lines
4.1 KiB
JavaScript
105 lines
4.1 KiB
JavaScript
goog.provide('ol.test.Extent');
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describe('ol.Extent', function() {
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describe('containsCoordinate', function() {
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describe('positive', function() {
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it('returns true', function() {
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var extent = new ol.Extent(1, 2, 3, 4);
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expect(extent.containsCoordinate(
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new ol.Coordinate(1, 2))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(1, 3))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(1, 4))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(2, 2))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(2, 3))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(2, 4))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(3, 2))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(3, 3))).toBeTruthy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(3, 4))).toBeTruthy();
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});
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});
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describe('negative', function() {
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it('returns false', function() {
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var extent = new ol.Extent(1, 2, 3, 4);
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expect(extent.containsCoordinate(
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new ol.Coordinate(0, 1))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(0, 2))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(0, 3))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(0, 4))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(0, 5))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(1, 1))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(1, 5))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(2, 1))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(2, 5))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(3, 1))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(3, 5))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(4, 1))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(4, 2))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(4, 3))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(4, 4))).toBeFalsy();
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expect(extent.containsCoordinate(
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new ol.Coordinate(4, 5))).toBeFalsy();
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});
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});
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});
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describe('transform', function() {
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it('does transform', function() {
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var transformFn =
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ol.projection.getTransformFromCodes('EPSG:4326', 'EPSG:3857');
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var sourceExtent = new ol.Extent(-15, -30, 45, 60);
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var destinationExtent = sourceExtent.transform(transformFn);
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expect(destinationExtent).not.toBeUndefined();
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expect(destinationExtent).not.toBeNull();
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// FIXME check values with third-party tool
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expect(destinationExtent.minX).toRoughlyEqual(-1669792.3618991037, 1e-9);
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expect(destinationExtent.minY).toRoughlyEqual(-3503549.843504376, 1e-8);
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expect(destinationExtent.maxX).toRoughlyEqual(5009377.085697311, 1e-9);
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expect(destinationExtent.maxY).toRoughlyEqual(8399737.889818361, 1e-9);
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});
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it('takes arbitrary function', function() {
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var transformFn = function(input) {
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return [-input[0], -input[1], -input[2], -input[3]];
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};
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var sourceExtent = new ol.Extent(-15, -30, 45, 60);
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var destinationExtent = sourceExtent.transform(transformFn);
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expect(destinationExtent).not.toBeUndefined();
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expect(destinationExtent).not.toBeNull();
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expect(destinationExtent.minX).toBe(-45);
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expect(destinationExtent.minY).toBe(-60);
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expect(destinationExtent.maxX).toBe(15);
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expect(destinationExtent.maxY).toBe(30);
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});
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});
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});
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goog.require('ol.Extent');
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goog.require('ol.projection');
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