216 lines
7.5 KiB
JavaScript
216 lines
7.5 KiB
JavaScript
import MultiPolygon from '../../../../../src/ol/geom/MultiPolygon.js';
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import expect from '../../../expect.js';
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import {rotate, translate} from '../../../../../src/ol/geom/flat/transform.js';
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import {transformGeom2D} from '../../../../../src/ol/geom/SimpleGeometry.js';
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describe('ol/geom/flat/transform.js', function () {
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describe('transform2D', function () {
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it('transforms a Simple Geometry to 2D', function () {
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const multiPolygonGeometry = new MultiPolygon([
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[
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[
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[-80.736061, 28.788576000000006, 0],
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[-80.763557, 28.821799999999996, 0],
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[-80.817406, 28.895123999999996, 0],
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[-80.891304, 29.013130000000004, 0],
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[-80.916512, 29.071560000000005, 0],
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[-80.899323, 29.061249000000004, 0],
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[-80.862663, 28.991361999999995, 0],
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[-80.736061, 28.788576000000006, 0],
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],
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],
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[
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[
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[-82.102127, 26.585724, 0],
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[-82.067139, 26.497208, 0],
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[-82.097641, 26.493585999999993, 0],
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[-82.135895, 26.642279000000002, 0],
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[-82.183495, 26.683082999999996, 0],
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[-82.128838, 26.693342, 0],
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[-82.102127, 26.585724, 0],
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],
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],
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]).transform('EPSG:4326', 'EPSG:3857');
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const transform = [
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0.0004088332670837288,
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0,
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0,
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-0.0004088332670837288,
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4480.991370439071,
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1529.5752568707105,
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];
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const pixelCoordinates = transformGeom2D(
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multiPolygonGeometry,
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transform,
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[]
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);
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expect(pixelCoordinates[0]).to.roughlyEqual(806.6035275946265, 1e-9);
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expect(pixelCoordinates[1]).to.roughlyEqual(160.48916296287916, 1e-9);
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expect(pixelCoordinates[2]).to.roughlyEqual(805.3521540835154, 1e-9);
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expect(pixelCoordinates[3]).to.roughlyEqual(158.76358389011807, 1e-9);
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expect(pixelCoordinates[4]).to.roughlyEqual(802.9014262612932, 1e-9);
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expect(pixelCoordinates[5]).to.roughlyEqual(154.95335187132082, 1e-9);
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expect(pixelCoordinates[6]).to.roughlyEqual(799.5382461724039, 1e-9);
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expect(pixelCoordinates[7]).to.roughlyEqual(148.815592819916, 1e-9);
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expect(pixelCoordinates[8]).to.roughlyEqual(798.3910020835165, 1e-9);
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expect(pixelCoordinates[9]).to.roughlyEqual(145.77392230456553, 1e-9);
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expect(pixelCoordinates[10]).to.roughlyEqual(799.1732925724045, 1e-9);
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expect(pixelCoordinates[11]).to.roughlyEqual(146.31080369865776, 1e-9);
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expect(pixelCoordinates[12]).to.roughlyEqual(800.8417299057378, 1e-9);
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expect(pixelCoordinates[13]).to.roughlyEqual(149.94832216046188, 1e-9);
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expect(pixelCoordinates[14]).to.roughlyEqual(806.6035275946265, 1e-9);
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expect(pixelCoordinates[15]).to.roughlyEqual(160.48916296287916, 1e-9);
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expect(pixelCoordinates[16]).to.roughlyEqual(744.4323460835158, 1e-9);
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expect(pixelCoordinates[17]).to.roughlyEqual(273.7179168205373, 1e-9);
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expect(pixelCoordinates[18]).to.roughlyEqual(746.0246888390716, 1e-9);
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expect(pixelCoordinates[19]).to.roughlyEqual(278.22094795365365, 1e-9);
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expect(pixelCoordinates[20]).to.roughlyEqual(744.6365089279602, 1e-9);
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expect(pixelCoordinates[21]).to.roughlyEqual(278.40513424671826, 1e-9);
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expect(pixelCoordinates[22]).to.roughlyEqual(742.8955268835157, 1e-9);
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expect(pixelCoordinates[23]).to.roughlyEqual(270.83899948444764, 1e-9);
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expect(pixelCoordinates[24]).to.roughlyEqual(740.7291979946272, 1e-9);
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expect(pixelCoordinates[25]).to.roughlyEqual(268.76099731369345, 1e-9);
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expect(pixelCoordinates[26]).to.roughlyEqual(743.2166987946266, 1e-9);
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expect(pixelCoordinates[27]).to.roughlyEqual(268.23842607400616, 1e-9);
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expect(pixelCoordinates[28]).to.roughlyEqual(744.4323460835158, 1e-9);
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expect(pixelCoordinates[29]).to.roughlyEqual(273.7179168205373, 1e-9);
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});
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});
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describe('translate', function () {
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it('translates the coordinates array', function () {
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const multiPolygon = new MultiPolygon([
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[
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[
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[0, 0, 2],
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[0, 1, 2],
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[1, 1, 2],
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[1, 0, 2],
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[0, 0, 2],
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],
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],
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[
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[
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[2, 2, 3],
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[2, 3, 3],
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[3, 3, 3],
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[3, 2, 3],
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[2, 2, 3],
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],
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],
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]);
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const flatCoordinates = multiPolygon.getFlatCoordinates();
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const deltaX = 1;
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const deltaY = 2;
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translate(
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flatCoordinates,
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0,
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flatCoordinates.length,
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multiPolygon.getStride(),
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deltaX,
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deltaY,
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flatCoordinates
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);
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expect(flatCoordinates).to.eql([
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1,
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2,
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2,
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1,
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3,
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2,
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2,
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3,
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2,
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2,
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2,
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2,
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1,
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2,
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2,
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3,
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4,
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3,
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3,
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5,
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3,
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4,
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5,
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3,
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4,
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4,
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3,
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3,
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4,
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3,
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]);
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});
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});
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describe('rotate', function () {
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it('rotates the coordinates array', function () {
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const multiPolygon = new MultiPolygon([
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[
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[
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[0, 0, 2],
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[0, 1, 2],
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[1, 1, 2],
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[1, 0, 2],
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[0, 0, 2],
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],
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],
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[
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[
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[2, 2, 3],
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[2, 3, 3],
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[3, 3, 3],
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[3, 2, 3],
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[2, 2, 3],
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],
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],
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]);
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const flatCoordinates = multiPolygon.getFlatCoordinates();
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const angle = Math.PI / 2;
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const anchor = [0, 1];
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rotate(
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flatCoordinates,
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0,
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flatCoordinates.length,
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multiPolygon.getStride(),
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angle,
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anchor,
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flatCoordinates
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);
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expect(flatCoordinates[0]).to.roughlyEqual(1, 1e-9);
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expect(flatCoordinates[1]).to.roughlyEqual(1, 1e-9);
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expect(flatCoordinates[2]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[3]).to.roughlyEqual(0, 1e-9);
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expect(flatCoordinates[4]).to.roughlyEqual(1, 1e-9);
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expect(flatCoordinates[5]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[6]).to.roughlyEqual(Math.cos(angle), 1e-9);
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expect(flatCoordinates[7]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[8]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[9]).to.roughlyEqual(1, 1e-9);
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expect(flatCoordinates[10]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[11]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[12]).to.roughlyEqual(1, 1e-9);
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expect(flatCoordinates[13]).to.roughlyEqual(1, 1e-9);
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expect(flatCoordinates[14]).to.roughlyEqual(2, 1e-9);
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expect(flatCoordinates[15]).to.roughlyEqual(-1, 1e-9);
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expect(flatCoordinates[16]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[17]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[18]).to.roughlyEqual(-2, 1e-9);
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expect(flatCoordinates[19]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[20]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[21]).to.roughlyEqual(-2, 1e-9);
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expect(flatCoordinates[22]).to.roughlyEqual(4, 1e-9);
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expect(flatCoordinates[23]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[24]).to.roughlyEqual(-1, 1e-9);
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expect(flatCoordinates[25]).to.roughlyEqual(4, 1e-9);
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expect(flatCoordinates[26]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[27]).to.roughlyEqual(-1, 1e-9);
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expect(flatCoordinates[28]).to.roughlyEqual(3, 1e-9);
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expect(flatCoordinates[29]).to.roughlyEqual(3, 1e-9);
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});
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});
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});
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