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Add a method to scale geometries

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This commit is contained in:
Tim Schaub
2016-08-04 10:23:00 -06:00
parent f50f1f401c
commit 795cee876e
8 changed files with 184 additions and 0 deletions
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25
test/spec/ol/geom/linestring.test.js
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@@ -242,6 +242,31 @@ describe('ol.geom.LineString', function() {
});
describe('#scale()', function() {
it('scales a linestring', function() {
var geom = new ol.geom.LineString([[-10, -20], [10, 20]]);
geom.scale(10);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[-100, -200], [100, 200]]);
});
it('accepts sx and sy', function() {
var geom = new ol.geom.LineString([[-10, -20], [10, 20]]);
geom.scale(2, 3);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[-20, -60], [20, 60]]);
});
it('accepts an anchor', function() {
var geom = new ol.geom.LineString([[-10, -20], [10, 20]]);
geom.scale(3, 2, [10, 20]);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[-50, -60], [10, 20]]);
});
});
describe('with a simple line string', function() {
var lineString;

25
test/spec/ol/geom/multilinestring.test.js
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@@ -313,6 +313,31 @@ describe('ol.geom.MultiLineString', function() {
});
describe('#scale()', function() {
it('scales a multi-linestring', function() {
var geom = new ol.geom.MultiLineString([[[-10, -20], [10, 20]], [[5, -10], [-5, 10]]]);
geom.scale(10);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[[-100, -200], [100, 200]], [[50, -100], [-50, 100]]]);
});
it('accepts sx and sy', function() {
var geom = new ol.geom.MultiLineString([[[-10, -20], [10, 20]], [[5, -10], [-5, 10]]]);
geom.scale(2, 3);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[[-20, -60], [20, 60]], [[10, -30], [-10, 30]]]);
});
it('accepts an anchor', function() {
var geom = new ol.geom.MultiLineString([[[-10, -20], [10, 20]], [[5, -10], [-5, 10]]]);
geom.scale(3, 2, [10, 20]);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[[-50, -60], [10, 20]], [[-5, -40], [-35, 0]]]);
});
});
describe('#setLineStrings', function() {
it('sets the line strings', function() {

25
test/spec/ol/geom/multipoint.test.js
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@@ -203,6 +203,31 @@ describe('ol.geom.MultiPoint', function() {
});
describe('#scale()', function() {
it('scales a multi-point', function() {
var geom = new ol.geom.MultiPoint([[-10, -20], [10, 20]]);
geom.scale(10);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[-100, -200], [100, 200]]);
});
it('accepts sx and sy', function() {
var geom = new ol.geom.MultiPoint([[-10, -20], [10, 20]]);
geom.scale(2, 3);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[-20, -60], [20, 60]]);
});
it('accepts an anchor', function() {
var geom = new ol.geom.MultiPoint([[-10, -20], [10, 20]]);
geom.scale(3, 2, [-10, -20]);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([[-10, -20], [50, 60]]);
});
});
describe('#applyTransform()', function() {
var multi, transform;

25
test/spec/ol/geom/point.test.js
View File

@@ -129,6 +129,31 @@ describe('ol.geom.Point', function() {
});
describe('#scale()', function() {
it('scales a point', function() {
var geom = new ol.geom.Point([1, 2]);
geom.scale(10e6);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([1, 2]);
});
it('accepts sx and sy', function() {
var geom = new ol.geom.Point([1, 2]);
geom.scale(1e6, -42);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([1, 2]);
});
it('accepts an anchor', function() {
var geom = new ol.geom.Point([1, 2]);
geom.scale(10, 15, [0, 0]);
var coordinates = geom.getCoordinates();
expect(coordinates).to.eql([10, 30]);
});
});
describe('#applyTransform()', function() {
var point, transform;