source: other-projects/playing-in-the-street/summer-2013/trunk/Playing-in-the-Street-WPF/Content/Web/mrdoob-three.js-4862f5f/docs/api/math/Triangle.html@ 28897

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1<!DOCTYPE html>
2<html lang="en">
3 <head>
4 <meta charset="utf-8" />
5 <script src="../../list.js"></script>
6 <script src="../../page.js"></script>
7 <link type="text/css" rel="stylesheet" href="../../page.css" />
8 </head>
9 <body>
10 <h1>[name]</h1>
11
12 <div class="desc">A geometric triangle as defined by three vectors.</div>
13
14
15 <h2>Constructor</h2>
16
17
18 <h3>[name]([page:Vector3 a], [page:Vector3 b], [page:Vector3 c])</h3>
19 <div>
20 a -- [page:Vector3] <br />
21 b -- [page:Vector3] <br />
22 c -- [page:Vector3]
23 </div>
24 <div>
25 Sets the triangle's vectors to the passed vectors.
26 </div>
27
28
29 <h2>Properties</h2>
30
31
32
33 <h3>.[page:Vector3 a]</h3>
34 <div>
35 The first [page:Vector3] of the triangle.
36 </div>
37
38 <h3>.[page:Vector3 c]</h3>
39 <div>
40 The second [page:Vector3] of the triangle.
41 </div>
42
43 <h3>.[page:Vector3 b]</h3>
44 <div>
45 The third [page:Vector3] of the triangle.
46 </div>
47
48 <h2>Methods</h2>
49
50
51
52 <h3>.setFromPointsAndIndices([page:Array points], [page:Integer i0], [page:Integer i1], [page:Integer i2]) [page:Triangle this]</h3>
53 <div>
54 points -- [page:Array] of [page:Vector3]s <br />
55 i0 -- [page:Integer] index <br />
56 i1 -- [page:Integer] index <br />
57 i2 -- [page:Integer] index
58 </div>
59 <div>
60 Sets the triangle's vectors to the vectors in the array.
61 </div>
62
63 <h3>.set([page:Vector3 a], [page:Vector3 b], [page:Vector3 c]) [page:Triangle this]</h3>
64 <div>
65 a -- [page:Vector3] <br />
66 b -- [page:Vector3] <br />
67 c -- [page:Vector3]
68 </div>
69 <div>
70 Sets the triangle's vectors to the passed vectors.
71 </div>
72
73 <h3>.normal([page:Vector3 optionalTarget]) [page:Vector3]</h3>
74 <div>
75 optionalTarget -- Optional [page:Vector3] target to set the result.
76 </div>
77 <div>
78 Return the calculated normal of the triangle.
79 </div>
80
81 <h3>.barycoordFromPoint([page:Vector3 point], [page:Vector3 optionalTarget]) [page:Vector3]</h3>
82 <div>
83 point -- [page:Vector3] <br />
84 optionalTarget -- Optional [page:Vector3] target to set the result.
85 </div>
86 <div>
87 Return a barycentric coordinate from the given vector. <br/><br/>
88 [link:http://commons.wikimedia.org/wiki/File:Barycentric_coordinates_1.png](Picture of barycentric coordinates)
89 </div>
90
91 <h3>.clone() [page:Triangle]</h3>
92 <div>
93 Return a new copy of this triangle.
94 </div>
95
96 <h3>.area() [page:Float]</h3>
97 <div>
98 Return the area of the triangle.
99 </div>
100
101 <h3>.midpoint([page:Vector3 optionalTarget]) [page:Vector3]</h3>
102 <div>
103 optionalTarget -- Optional [page:Vector3] target to set the result.
104 </div>
105 <div>
106 Return the midpoint of the triangle. Optionally sets a target vector.
107 </div>
108
109 <h3>.equals([page:Triangle triangle]) [page:Boolean]</h3>
110 <div>
111 triangle -- [page:Triangle]
112 </div>
113 <div>
114 Checks to see if two triangles are equal (share the same vectors).
115 </div>
116
117 <h3>.plane([page:Plane optionalTarget]) [page:Plane]</h3>
118 <div>
119 optionalTarget -- Optional [page:Plane] target to set the result.
120 </div>
121 <div>
122 Return a [page:Plane plane] based on the triangle. Optionally sets a target plane.
123 </div>
124
125 <h3>.containsPoint([page:Vector3 point]) [page:Boolean]</h3>
126 <div>
127 point -- [page:Vector3]
128 </div>
129 <div>
130 Checks to see if the passed vector is within the triangle.
131 </div>
132
133 <h3>.copy([page:Triangle triangle]) [page:Triangle]</h3>
134 <div>
135 triangle -- [page:Triangle]
136 </div>
137 <div>
138 Copies the values of the vertices of the passed triangle to this triangle.
139 </div>
140
141 <h2>Source</h2>
142
143 [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
144 </body>
145</html>
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