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Factor out ol.geom.flat.interpolate

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This commit is contained in:
Tom Payne
2014-03-12 11:39:26 +01:00
parent c8165a8168
commit 522fda1688
6 changed files with 244 additions and 230 deletions
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50
test/spec/ol/geom/flat/interpolateflatgeom.test.js Normal file
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@@ -0,0 +1,50 @@
goog.provide('ol.test.geom.flat.interpolate');
describe('ol.geom.flat.interpolate', function() {
describe('ol.geom.flat.interpolate.lineString', function() {
it('returns the expected value for single points', function() {
var flatCoordinates = [0, 1];
var point =
ol.geom.flat.interpolate.lineString(flatCoordinates, 0, 2, 2, 0.5);
expect(point).to.eql([0, 1]);
});
it('returns the expected value for simple line segments', function() {
var flatCoordinates = [0, 1, 2, 3];
var point =
ol.geom.flat.interpolate.lineString(flatCoordinates, 0, 4, 2, 0.5);
expect(point).to.eql([1, 2]);
});
it('returns the expected value when the mid point is an existing ' +
'coordinate', function() {
var flatCoordinates = [0, 1, 2, 3, 4, 5];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([2, 3]);
});
it('returns the expected value when the midpoint falls halfway between ' +
'two existing coordinates', function() {
var flatCoordinates = [0, 1, 2, 3, 4, 5, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 8, 2, 0.5);
expect(point).to.eql([3, 4]);
});
it('returns the expected value when the coordinates are not evenly spaced',
function() {
var flatCoordinates = [0, 1, 2, 3, 6, 7];
var point = ol.geom.flat.interpolate.lineString(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([3, 4]);
});
});
});
goog.require('ol.geom.flat');
goog.require('ol.geom.flat.interpolate');

43
test/spec/ol/geom/flatgeom.test.js
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@@ -84,49 +84,6 @@ describe('ol.geom.flat', function() {
});
});
describe('ol.geom.flat.lineStringInterpolate', function() {
it('returns the expected value for single points', function() {
var flatCoordinates = [0, 1];
var point =
ol.geom.flat.lineStringInterpolate(flatCoordinates, 0, 2, 2, 0.5);
expect(point).to.eql([0, 1]);
});
it('returns the expected value for simple line segments', function() {
var flatCoordinates = [0, 1, 2, 3];
var point =
ol.geom.flat.lineStringInterpolate(flatCoordinates, 0, 4, 2, 0.5);
expect(point).to.eql([1, 2]);
});
it('returns the expected value when the mid point is an existing ' +
'coordinate', function() {
var flatCoordinates = [0, 1, 2, 3, 4, 5];
var point =
ol.geom.flat.lineStringInterpolate(flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([2, 3]);
});
it('returns the expected value when the midpoint falls halfway between ' +
'two existing coordinates', function() {
var flatCoordinates = [0, 1, 2, 3, 4, 5, 6, 7];
var point =
ol.geom.flat.lineStringInterpolate(flatCoordinates, 0, 8, 2, 0.5);
expect(point).to.eql([3, 4]);
});
it('returns the expected value when the coordinates are not evenly spaced',
function() {
var flatCoordinates = [0, 1, 2, 3, 6, 7];
var point =
ol.geom.flat.lineStringInterpolate(flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([3, 4]);
});
});
describe('ol.geom.flat.linearRingArea', function() {
it('calcaultes the area of a triangle', function() {