119 lines
4.2 KiB
JavaScript
119 lines
4.2 KiB
JavaScript
import {intersectsLinearRing, intersectsLineString, intersectsLinearRingArray} from '../../../../../src/ol/geom/flat/intersectsextent.js';
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describe('ol.geom.flat.intersectsextent', function() {
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describe('ol.geom.flat.intersectsextent.intersectsLineString', function() {
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let flatCoordinates;
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beforeEach(function() {
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flatCoordinates = [0, 0, 1, 1, 2, 2];
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});
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describe('linestring envelope does not intersect the extent', function() {
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it('returns false', function() {
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const extent = [3, 3, 4, 4];
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const r = intersectsLineString(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(false);
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});
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});
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describe('linestring envelope within the extent', function() {
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it('returns true', function() {
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const extent = [-1, -1, 3, 3];
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const r = intersectsLineString(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(true);
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});
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});
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describe('linestring envelope bisected by an edge of the extent',
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function() {
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it('returns true', function() {
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const extent = [-0.1, 0.1, 2.1, 0.1];
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const r = intersectsLineString(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(true);
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});
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});
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describe('a segment intersects the extent', function() {
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it('returns true', function() {
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const extent = [-0.5, -0.5, 0.5, 0.5];
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const r = intersectsLineString(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(true);
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});
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});
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describe('no segments intersect the extent', function() {
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it('returns false', function() {
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const extent = [0.5, 1.5, 1, 1.75];
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const r = intersectsLineString(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(false);
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});
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it('returns false', function() {
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const extent = [1, 0.25, 1.5, 0.5];
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const r = intersectsLineString(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(false);
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});
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});
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});
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describe('ol.geom.flat.intersectsextent.intersectsLinearRing', function() {
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let flatCoordinates;
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beforeEach(function() {
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flatCoordinates = [0, 0, 1, 1, 2, 0, 1, -1, 0, 0];
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});
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describe('boundary intersects the extent', function() {
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it('returns true', function() {
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const extent = [1.5, 0.0, 2.5, 1.0];
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const r = intersectsLinearRing(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(true);
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});
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});
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describe('boundary does not intersect the extent and ring does not ' +
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'contain a corner of the extent',
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function() {
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it('returns false', function() {
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const extent = [2.0, 0.5, 3, 1.5];
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const r = intersectsLinearRing(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(false);
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});
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});
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describe('ring contains the extent', function() {
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it('returns true', function() {
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const extent = [0.75, -0.25, 1.25, 0.25];
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const r = intersectsLinearRing(
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flatCoordinates, 0, flatCoordinates.length, 2, extent);
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expect(r).to.be(true);
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});
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});
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});
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describe('ol.geom.flat.intersectsextent.intersectsLinearRingArray', function() {
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let flatCoordinates;
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let ends;
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beforeEach(function() {
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flatCoordinates = [0, 0, 0, 10, 10, 10, 10, 0, 0, 0, /*hole*/2, 2, 8, 2, 8, 4, 5, 5, 8, 6, 8, 8, 2, 8, 2, 2];
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ends = [10, flatCoordinates.length];
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});
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describe('ring with hole where hole contains the extent', function() {
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it('returns true', function() {
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const extent = [3, 3, 3.5, 3.5];
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const r = intersectsLinearRingArray(
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flatCoordinates, 0, ends, 2, extent);
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expect(r).to.be(false);
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});
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});
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describe('ring with hole intersects the extent', function() {
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it('returns true', function() {
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const extent = [3, 3, 6, 6];
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const r = intersectsLinearRingArray(
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flatCoordinates, 0, ends, 2, extent);
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expect(r).to.be(true);
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});
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});
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});
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});
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