openlayers/tests/Geometry/MultiPoint.html

   1 <html>
   2 <head>
   3   <script src="../../lib/OpenLayers.js"></script>
   4   <script type="text/javascript">
   5     var point = new OpenLayers.Geometry.Point(10, 15);
   6
   7
   8     function test_MultiPoint_constructor (t) {
   9         t.plan( 2 );
  10         var multipoint = new OpenLayers.Geometry.MultiPoint();
  11         t.ok( multipoint instanceof OpenLayers.Geometry.MultiPoint, "new OpenLayers.Geometry.MultiPoint returns multipoint object" );
  12         t.eq( multipoint.CLASS_NAME, "OpenLayers.Geometry.MultiPoint", "multipoint.CLASS_NAME is set correctly");
  13     }
  14
  15     function test_MultiPoint_constructor (t) {
  16         t.plan( 3 );
  17         var multipoint = new OpenLayers.Geometry.MultiPoint([point]);
  18         t.ok( multipoint instanceof OpenLayers.Geometry.MultiPoint, "new OpenLayers.Geometry.MultiPoint returns multipoint object" );
  19         t.eq( multipoint.CLASS_NAME, "OpenLayers.Geometry.MultiPoint", "multipoint.CLASS_NAME is set correctly");
  20         t.eq( multipoint.components.length, 1, "multipolygon.components.length is set correctly");
  21     }
  22
  23     function test_MultiPoint_move(t) {
  24         t.plan(2);
  25
  26         var multipoint = new OpenLayers.Geometry.MultiPoint([point]);
  27         var x = point.x;
  28         var y = point.y;
  29
  30         var dx = 10 * Math.random();
  31         var dy = 10 * Math.random();
  32         multipoint.move(dx, dy);
  33         t.eq(multipoint.components[0].x, x + dx, "move() correctly modifies x");
  34         t.eq(multipoint.components[0].y, y + dy, "move() correctly modifies y");
  35     }
  36
  37     function test_distanceTo(t) {
  38         var points = [
  39             new OpenLayers.Geometry.Point(0, 0),
  40             new OpenLayers.Geometry.Point(10, 0),
  41             new OpenLayers.Geometry.Point(0, 9),
  42             new OpenLayers.Geometry.Point(-5, 0),
  43             new OpenLayers.Geometry.Point(-5, 4)
  44         ];
  45
  46         var geoms = [
  47             new OpenLayers.Geometry.MultiPoint([points[0], points[1]]),
  48             new OpenLayers.Geometry.MultiPoint([points[2], points[3]]),
  49             points[4]
  50         ];
  51
  52         var cases = [{
  53             got: geoms[0].distanceTo(geoms[0]),
  54             expected: 0
  55         }, {
  56             got: geoms[0].distanceTo(geoms[1]),
  57             expected: 5
  58         }, {
  59             got: geoms[1].distanceTo(geoms[2]),
  60             expected: 4
  61         }, {
  62             got: geoms[0].distanceTo(geoms[1], {details: true}),
  63             expected: {
  64                 distance: 5,
  65                 x0: 0, y0: 0,
  66                 x1: -5, y1: 0
  67             }
  68         }, {
  69             got: geoms[1].distanceTo(geoms[0], {details: true}),
  70             expected: {
  71                 distance: 5,
  72                 x0: -5, y0: 0,
  73                 x1: 0, y1: 0
  74             }
  75         }, {
  76             got: geoms[1].distanceTo(geoms[2], {details: true}),
  77             expected: {
  78                 distance: 4,
  79                 x0: -5, y0: 0,
  80                 x1: -5, y1: 4
  81             }
  82         }];
  83
  84         t.plan(cases.length);
  85         for(var i=0; i<cases.length; ++i) {
  86             t.eq(cases[i].got, cases[i].expected, "case " + i);
  87         }
  88
  89     }
  90
  91     function test_MultiPoint_equals(t) {
  92         t.plan(3);
  93
  94         var x = Math.random() * 100;
  95         var y = Math.random() * 100;
  96         var geometry = new OpenLayers.Geometry.MultiPoint(
  97                                         [new OpenLayers.Geometry.Point(x, y)]);
  98         var equal =  new OpenLayers.Geometry.MultiPoint(
  99                                         [new OpenLayers.Geometry.Point(x, y)]);
 100         var offX =  new OpenLayers.Geometry.MultiPoint(
 101                                         [new OpenLayers.Geometry.Point(x + 1, y)]);
 102         var offY =  new OpenLayers.Geometry.MultiPoint(
 103                                         [new OpenLayers.Geometry.Point(x, y + 1)]);
 104         t.ok(geometry.equals(equal),
 105              "equals() returns true for a geometry with equivalent coordinates");
 106         t.ok(!geometry.equals(offX),
 107              "equals() returns false for a geometry with offset x");
 108         t.ok(!geometry.equals(offY),
 109              "equals() returns false for a geometry with offset y");
 110     }
 111
 112     function test_MultiPoint_clone(t) {
 113         t.plan(2);
 114
 115         var x = Math.random() * 100;
 116         var y = Math.random() * 100;
 117         var geometry = new OpenLayers.Geometry.MultiPoint(
 118                                         [new OpenLayers.Geometry.Point(x, y)]);
 119         var clone = geometry.clone();
 120         t.ok(clone instanceof OpenLayers.Geometry.MultiPoint,
 121              "clone() creates an OpenLayers.Geometry.MultiPoint");
 122         t.ok(geometry.equals(clone), "clone has equivalent coordinates");
 123     }
 124
 125
 126   </script>
 127 </head>
 128 <body>
 129 </body>
 130 </html>