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Adding distanceTo method to all geometry types. This calculates the shortest distance between any two geometries. For geometries that are entirely contained within polygons, the distance returned will be the distance to the nearest edge. Set the edge option to false to return 0 in cases where one geometry contains another. Details about the distance calculation can be returned by setting the details option true. Details include information about endpoints of the shortest segment between the two geometries. r=ahocevar (closes #1907)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@8836 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2009-02-05 17:43:34 +00:00
parent 41670499b1
commit 3274491b95
10 changed files with 501 additions and 13 deletions
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32
tests/Geometry.html
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@@ -250,7 +250,37 @@
t.fail(failures[f]);
}
}
}
}
function test_distanceToSegment(t) {
var dist = OpenLayers.Geometry.distanceToSegment;
var cases = [{
got: dist({x: 0, y: 0}, {x1: 0, y1: 1, x2: 1, y2: 1}),
expected: {distance: 1, x: 0, y: 1}
}, {
got: dist({x: 0, y: 0}, {x1: -1, y1: -1, x2: 0, y2: -1}),
expected: {distance: 1, x: 0, y: -1}
}, {
got: dist({x: 0, y: 0}, {x1: -1, y1: -1, x2: 1, y2: 1}),
expected: {distance: 0, x: 0, y: 0}
}, {
got: dist({x: 1, y: 1}, {x1: 2, y1: 0, x2: 2, y2: 3}),
expected: {distance: 1, x: 2, y: 1}
}, {
got: dist({x: -1, y: -1}, {x1: -2, y1: -2, x2: -1, y2: -3}),
expected: {distance: Math.sqrt(2), x: -2, y: -2}
}, {
got: dist({x: -1, y: 1}, {x1: -3, y1: 1, x2: -1, y2: 3}),
expected: {distance: Math.sqrt(2), x: -2, y: 2}
}];
t.plan(cases.length);
for(var i=0; i<cases.length; ++i) {
t.eq(cases[i].got, cases[i].expected, "case " + i);
}
}
function test_fromWKT(t) {