LineString.html

Revision 6724, 7.8 kB (checked in by euzuro, 9 months ago)
fix up tests, remove _01_. (Closes #1387)
Property svn:eol-style set to `native`

Line
1	<html>
2	<head>
3	<script src="../../lib/OpenLayers.js"></script>
4	<script type="text/javascript">
5	var line;
6	var components = [new OpenLayers.Geometry.Point(10,15),
7	new OpenLayers.Geometry.Point(0,0)];
8
9	function test_LineString_constructor (t) {
10	t.plan( 3 );
11	line = new OpenLayers.Geometry.LineString();
12	t.ok( line instanceof OpenLayers.Geometry.LineString, "new OpenLayers.Geometry.LineString returns line object" );
13	t.eq( line.CLASS_NAME, "OpenLayers.Geometry.LineString", "line.CLASS_NAME is set correctly");
14	t.eq( line.components, [], "line.components is set correctly");
15	}
16
17	function test_LineString_constructor (t) {
18	t.plan( 3 );
19	line = new OpenLayers.Geometry.LineString(components);
20	t.ok( line instanceof OpenLayers.Geometry.LineString, "new OpenLayers.Geometry.LineString returns line object" );
21	t.eq( line.CLASS_NAME, "OpenLayers.Geometry.LineString", "line.CLASS_NAME is set correctly");
22	// TBD FIXME, recursion
23	// t.eq( line.components, components, "line.components is set correctly");
24	t.eq( line.components.length, 2, "line.components.length is set correctly");
25	}
26
27	function test_LineString_toString(t) {
28	t.plan(1);
29
30	line = new OpenLayers.Geometry.LineString(components);
31	t.eq(line.toString(),
32	"LINESTRING(10 15,0 0)",
33	"toString() returns WKT");
34	}
35
36	function test_LineString_removeComponent(t) {
37	t.plan(2);
38
39	OpenLayers.Geometry.Collection.prototype._removeComponent =
40	OpenLayers.Geometry.Collection.prototype.removeComponent;
41	OpenLayers.Geometry.Collection.prototype.removeComponent =
42	function(point) { g_removeComponent = point; };
43
44	line = new OpenLayers.Geometry.LineString(components);
45
46	g_removeComponent = null;
47	line.removeComponent(components[0]);
48	t.ok(g_removeComponent == null, "point not removed if only 2 points in components");
49
50	line.components.push(new OpenLayers.Geometry.Point(4,4));
51	line.removeComponent(components[0]);
52	t.ok(g_removeComponent, components[0], "point removed if 3 points in components");
53
54	OpenLayers.Geometry.Collection.prototype.removeComponent =
55	OpenLayers.Geometry.Collection.prototype._removeComponent;
56	}
57
58	function test_LineString_move(t) {
59	t.plan(4);
60
61	var components = [new OpenLayers.Geometry.Point(10,15),
62	new OpenLayers.Geometry.Point(0,0)];
63	var line = new OpenLayers.Geometry.LineString(components);
64
65	var x0 = components[0].x;
66	var y0 = components[0].y;
67	var x1 = components[1].x;
68	var y1 = components[1].y;
69
70	var dx = 10 * Math.random();
71	var dy = 10 * Math.random();
72	line.move(dx, dy);
73
74	t.eq(line.components[0].x, x0 + dx, "move() correctly modifies first x");
75	t.eq(line.components[0].y, y0 + dy, "move() correctly modifies first y");
76	t.eq(line.components[1].x, x1 + dx, "move() correctly modifies second x");
77	t.eq(line.components[1].y, y1 + dy, "move() correctly modifies second y");
78	}
79
80	function test_LineString_rotate(t) {
81	t.plan(6);
82
83	var components = [new OpenLayers.Geometry.Point(10,15),
84	new OpenLayers.Geometry.Point(0,0)];
85	var geometry = new OpenLayers.Geometry.LineString(components);
86
87	var originals = [];
88	var comp;
89	var angle = 2 * Math.PI * Math.random();
90	var origin = new OpenLayers.Geometry.Point(10 * Math.random(),
91	10 * Math.random());
92	for(var i=0; i<geometry.components.length; ++i) {
93	comp = geometry.components[i];
94	originals[i] = comp.rotate;
95	comp.rotate = function(a, o) {
96	t.ok(true, "rotate called for component " + i);
97	t.ok(a == angle, "rotate called with correct angle");
98	t.ok(o == origin, "rotate called with correct origin");
99	}
100	}
101	geometry.rotate(angle, origin);
102
103	// restore the original rotate defs
104	for(var i=0; i<geometry.components.length; ++i) {
105	comp.rotate = originals[i];
106	}
107	}
108
109	function test_LineString_resize(t) {
110	t.plan(7);
111
112	var tolerance = 1e-10;
113
114	var components = [new OpenLayers.Geometry.Point(10 * Math.random(),
115	10 * Math.random()),
116	new OpenLayers.Geometry.Point(10 * Math.random(),
117	10 * Math.random())];
118	var geometry = new OpenLayers.Geometry.LineString(components);
119
120	var origin = new OpenLayers.Geometry.Point(10 * Math.random(),
121	10 * Math.random());
122
123	var scale = 10 * Math.random();
124
125	var oldLength = geometry.getLength();
126	geometry.resize(scale, origin);
127	var newLength = geometry.getLength();
128	t.ok((((newLength / oldLength) - scale) / scale) < tolerance,
129	"resize correctly changes the length of a linestring")
130
131	var originals = [];
132	var comp;
133	for(var i=0; i<geometry.components.length; ++i) {
134	comp = geometry.components[i];
135	originals[i] = comp.resize;
136	comp.resize = function(s, o) {
137	t.ok(true, "resize called for component " + i);
138	t.ok(s == scale, "resize called with correct scale");
139	t.ok(o == origin, "resize called with correct origin");
140	}
141	}
142	geometry.resize(scale, origin);
143
144	// restore the original resize defs
145	for(var i=0; i<geometry.components.length; ++i) {
146	comp.resize = originals[i];
147	}
148
149	}
150
151	function test_LineString_equals(t) {
152	t.plan(3);
153
154	var x0 = Math.random() * 100;
155	var y0 = Math.random() * 100;
156	var x1 = Math.random() * 100;
157	var y1 = Math.random() * 100;
158	var point0 = new OpenLayers.Geometry.Point(x0, y0);
159	var point1 = new OpenLayers.Geometry.Point(x1, y1);
160	var geometry = new OpenLayers.Geometry.LineString([point0, point1]);
161	var equal = new OpenLayers.Geometry.LineString([point0, point1]);
162	var offX = new OpenLayers.Geometry.LineString([
163	new OpenLayers.Geometry.Point(x0 + 1, y0),
164	new OpenLayers.Geometry.Point(x1 + 1, y1)]);
165	var offY = new OpenLayers.Geometry.LineString([
166	new OpenLayers.Geometry.Point(x0, y0 + 1),
167	new OpenLayers.Geometry.Point(x1, y1 + 1)]);
168	t.ok(geometry.equals(equal),
169	"equals() returns true for a geometry with equivalent coordinates");
170	t.ok(!geometry.equals(offX),
171	"equals() returns false for a geometry with offset x");
172	t.ok(!geometry.equals(offY),
173	"equals() returns false for a geometry with offset y");
174	}
175
176	function test_LineString_clone(t) {
177	t.plan(2);
178
179	var x0 = Math.random() * 100;
180	var y0 = Math.random() * 100;
181	var x1 = Math.random() * 100;
182	var y1 = Math.random() * 100;
183	var point0 = new OpenLayers.Geometry.Point(x0, y0);
184	var point1 = new OpenLayers.Geometry.Point(x1, y1);
185	var geometry = new OpenLayers.Geometry.LineString([point0, point1]);
186	var clone = geometry.clone();
187	t.ok(clone instanceof OpenLayers.Geometry.LineString,
188	"clone() creates an OpenLayers.Geometry.LineString");
189	t.ok(geometry.equals(clone), "clone has equivalent coordinates");
190	}
191
192
193	</script>
194	</head>
195	<body>
196	</body>
197	</html>

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root/trunk/openlayers/tests/Geometry/LineString.html

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