openlayers
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Build tools and sources for developing OpenLayers based mapping applications
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JavaScript
goog.provide('ol.test.geom.flat.intersectsextent');
goog.require('ol.geom.flat.intersectsextent');
describe('ol.geom.flat.intersectsextent', function() {
describe('ol.geom.flat.intersectsextent.lineString', function() {
var flatCoordinates;
beforeEach(function() {
flatCoordinates = [0, 0, 1, 1, 2, 2];
});
describe('linestring envelope does not intersect the extent', function() {
it('returns false', function() {
var extent = [3, 3, 4, 4];
var r = ol.geom.flat.intersectsextent.lineString(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(false);
});
});
describe('linestring envelope within the extent', function() {
it('returns true', function() {
var extent = [-1, -1, 3, 3];
var r = ol.geom.flat.intersectsextent.lineString(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(true);
});
});
describe('linestring envelope bisected by an edge of the extent',
function() {
it('returns true', function() {
var extent = [-0.1, 0.1, 2.1, 0.1];
var r = ol.geom.flat.intersectsextent.lineString(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(true);
});
});
describe('a segment intersects the extent', function() {
it('returns true', function() {
var extent = [-0.5, -0.5, 0.5, 0.5];
var r = ol.geom.flat.intersectsextent.lineString(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(true);
});
});
describe('no segments intersect the extent', function() {
it('returns false', function() {
var extent = [0.5, 1.5, 1, 1.75];
var r = ol.geom.flat.intersectsextent.lineString(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(false);
});
it('returns false', function() {
var extent = [1, 0.25, 1.5, 0.5];
var r = ol.geom.flat.intersectsextent.lineString(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(false);
});
});
});
describe('ol.geom.flat.intersectsextent.linearRing', function() {
var flatCoordinates;
beforeEach(function() {
flatCoordinates = [0, 0, 1, 1, 2, 0, 1, -1, 0, 0];
});
describe('boundary intersects the extent', function() {
it('returns true', function() {
var extent = [1.5, 0.0, 2.5, 1.0];
var r = ol.geom.flat.intersectsextent.linearRing(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(true);
});
});
describe('boundary does not intersect the extent and ring does not ' +
'contain a corner of the extent',
function() {
it('returns false', function() {
var extent = [2.0, 0.5, 3, 1.5];
var r = ol.geom.flat.intersectsextent.linearRing(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(false);
});
});
describe('ring contains the extent', function() {
it('returns true', function() {
var extent = [0.75, -0.25, 1.25, 0.25];
var r = ol.geom.flat.intersectsextent.linearRing(
flatCoordinates, 0, flatCoordinates.length, 2, extent);
expect(r).to.be(true);
});
});
});
});