mirror of
https://github.com/scratchfoundation/paper.js.git
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82 lines
No EOL
3.2 KiB
JavaScript
82 lines
No EOL
3.2 KiB
JavaScript
/*
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* Paper.js - The Swiss Army Knife of Vector Graphics Scripting.
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* http://paperjs.org/
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*
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* Copyright (c) 2011 - 2013, Juerg Lehni & Jonathan Puckey
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* http://lehni.org/ & http://jonathanpuckey.com/
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*
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* Distributed under the MIT license. See LICENSE file for details.
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*
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* All rights reserved.
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*/
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module('Item Contains');
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function testPoint(item, point, inside) {
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equals(item.contains(point), inside, 'The point ' + point
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+ ' should be ' + (inside ? 'inside' : 'outside') + '.');
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}
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test('Path#contains (Regular Polygon)', function() {
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var path = new Path.RegularPolygon([0, 0], 6, 20);
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testPoint(path, new Point(0, -20), true);
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testPoint(path, new Point(0, -10), true);
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testPoint(path, new Point(0, 0), true);
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testPoint(path, new Point(0, 10), true);
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testPoint(path, new Point(0, 20), true);
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testPoint(path, new Point(-10, -20), false);
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testPoint(path, new Point(-10, -10), true);
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testPoint(path, new Point(-10, 0), true);
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testPoint(path, new Point(-10, 10), true);
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testPoint(path, new Point(-10, 20), false);
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testPoint(path, new Point(10, -20), false);
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testPoint(path, new Point(10, -10), true);
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testPoint(path, new Point(10, 0), true);
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testPoint(path, new Point(10, 10), true);
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testPoint(path, new Point(10, 20), false);
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});
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test('CompoundPath#contains (Donut)', function() {
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var path = new CompoundPath([
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new Path.Circle([0, 0], 50),
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new Path.Circle([0, 0], 25)
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]);
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equals(path.contains(new Point(0, 0)), false,
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'The center point should be outside the donut.');
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equals(path.contains(new Point(-35, 0)), true,
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'A vertically centered point on the left side should be inside the donut.');
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equals(path.contains(new Point(35, 0)), true,
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'A vertically centered point on the right side should be inside the donut.');
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equals(path.contains(new Point(0, 49)), true,
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'The near bottom center point of the outer circle should be inside the donut.');
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equals(path.contains(new Point(0, 50)), true,
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'The bottom center point of the outer circle should be inside the donut.');
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equals(path.contains(new Point(0, 51)), false,
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'The near bottom center point of the outer circle should be outside the donut.');
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equals(path.contains(new Point({ length: 50, angle: 30 })), true,
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'A random point on the periphery of the outer circle should be inside the donut.');
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equals(path.contains(new Point(0, 25)), false,
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'The bottom center point of the inner circle should be outside the donut.');
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equals(path.contains(new Point({ length: 25, angle: 30 })), false,
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'A random point on the periphery of the inner circle should be outside the donut.');
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equals(path.contains(new Point(-50, -50)), false,
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'The top left point of bounding box should be outside the donut.');
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equals(path.contains(new Point(-50, 50)), false,
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'The bottom left point of bounding box should be outside the donut.');
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equals(path.contains(new Point(-45, 45)), false,
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'The near bottom left point of bounding box should be outside the donut.');
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});
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test('Shape#contains', function() {
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var shape = new Shape.Circle([0, 0], 100);
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testPoint(shape, new Point(0, 0), true);
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testPoint(shape, new Point(0, -100), true);
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testPoint(shape, new Point({ length: 99, angle: 45 }), true);
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testPoint(shape, new Point({ length: 100, angle: 45 }), true);
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testPoint(shape, new Point({ length: 101, angle: 45 }), false);
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}); |