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Giving vector features an onScreen method. By default, this uses geometry.intersects. If a rougher approximation will do, call with boundsOnly set to true. r=crschmidt (closes #1238)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@5625 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2008-01-02 19:16:58 +00:00
parent 6791cf6086
commit af76852841
4 changed files with 104 additions and 4 deletions
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35
tests/Feature/test_Vector.html
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@@ -23,6 +23,41 @@
"geometry.property set properly" );
}
function test_Feature_onScreen(t) {
t.plan(6);
var line = new OpenLayers.Geometry.LineString([
new OpenLayers.Geometry.Point(0, 0),
new OpenLayers.Geometry.Point(10, 20)
]);
var feature = new OpenLayers.Feature.Vector(line);
feature.layer = {
map: {
getExtent: function() {
return new OpenLayers.Bounds(5, 5, 10, 10);
}
}
};
t.eq(feature.onScreen(), true,
"intersecting feature returns true for intersection");
t.eq(feature.onScreen(true), true,
"intersecting feature returns true for bounds only");
// move the line so only the bounds intersects
line.move(0, 5);
t.eq(feature.onScreen(), false,
"bounds-only feature returns false for intersection");
t.eq(feature.onScreen(true), true,
"bounds-only feature returns true for bounds only");
// move the line so bounds does not intersect
line.move(0, 10);
t.eq(feature.onScreen(), false,
"off-screen feature returns false for intersection");
t.eq(feature.onScreen(true), false,
"off-screen feature returns false for bounds only");
}
function test_Feature_Vector_clone(t) {
t.plan(5);