96 lines
2.8 KiB
JavaScript
96 lines
2.8 KiB
JavaScript
goog.provide('ol.test.geom.flat.length');
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goog.require('ol.geom.flat.length');
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describe('ol.geom.flat.length', function() {
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describe('ol.geom.flat.length.lineString', function() {
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describe('stride = 2', function() {
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var flatCoords = [0, 0, 1, 0, 1, 1, 0, 1];
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var stride = 2;
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it('calculates the total length of a lineString', function() {
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var offset = 0;
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var end = 8;
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var expected = 3;
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var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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it('calculates a partwise length of a lineString (offset)', function() {
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var offset = 2;
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var end = 8;
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var expected = 2;
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var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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it('calculates a partwise length of a lineString (end)', function() {
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var offset = 0;
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var end = 4;
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var expected = 1;
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var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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});
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describe('stride = 3', function() {
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var flatCoords = [0, 0, 42, 1, 0, 42, 1, 1, 42, 0, 1, 42];
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var stride = 3;
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it('calculates the total length of a lineString', function() {
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var offset = 0;
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var end = 12;
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var expected = 3;
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var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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it('calculates a partwise length of a lineString (offset)', function() {
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var offset = 3;
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var end = 12;
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var expected = 2;
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var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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it('calculates a partwise length of a lineString (end)', function() {
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var offset = 0;
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var end = 6;
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var expected = 1;
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var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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});
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});
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describe('ol.geom.flat.length.linearRing', function() {
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it('calculates the total length of a simple linearRing', function() {
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var flatCoords = [0, 0, 1, 0, 1, 1, 0, 1];
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var stride = 2;
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var offset = 0;
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var end = 8;
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var expected = 4;
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var got = ol.geom.flat.length.linearRing(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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it('calculates the total length of a figure-8 linearRing', function() {
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var flatCoords = [0, 0, 1, 0, 1, 1, 0, 1, 0, -1, -1, -1, -1, 0];
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var stride = 2;
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var offset = 0;
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var end = 14;
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var expected = 8;
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var got = ol.geom.flat.length.linearRing(flatCoords, offset, end, stride);
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expect(got).to.be(expected);
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});
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});
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});
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