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author | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
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committer | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
commit | ea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch) | |
tree | af67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/tests/Geometry/LineString.html | |
parent | 59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff) | |
download | postrunner-ea346a785dc1b3f7c156f6fc33da634e1f1a627b.zip |
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
Diffstat (limited to 'misc/openlayers/tests/Geometry/LineString.html')
-rw-r--r-- | misc/openlayers/tests/Geometry/LineString.html | 443 |
1 files changed, 443 insertions, 0 deletions
diff --git a/misc/openlayers/tests/Geometry/LineString.html b/misc/openlayers/tests/Geometry/LineString.html new file mode 100644 index 0000000..4b2ec0e --- /dev/null +++ b/misc/openlayers/tests/Geometry/LineString.html @@ -0,0 +1,443 @@ +<html> +<head> + <script src="../OLLoader.js"></script> + <script type="text/javascript"> + var line; + var components = [new OpenLayers.Geometry.Point(10,15), + new OpenLayers.Geometry.Point(0,0)]; + + function test_LineString_constructor (t) { + t.plan( 3 ); + line = new OpenLayers.Geometry.LineString(); + t.ok( line instanceof OpenLayers.Geometry.LineString, "new OpenLayers.Geometry.LineString returns line object" ); + t.eq( line.CLASS_NAME, "OpenLayers.Geometry.LineString", "line.CLASS_NAME is set correctly"); + t.eq( line.components, [], "line.components is set correctly"); + } + + function test_LineString_constructor (t) { + t.plan( 3 ); + line = new OpenLayers.Geometry.LineString(components); + t.ok( line instanceof OpenLayers.Geometry.LineString, "new OpenLayers.Geometry.LineString returns line object" ); + t.eq( line.CLASS_NAME, "OpenLayers.Geometry.LineString", "line.CLASS_NAME is set correctly"); + // TBD FIXME, recursion + // t.eq( line.components, components, "line.components is set correctly"); + t.eq( line.components.length, 2, "line.components.length is set correctly"); + } + + function test_LineString_toString(t) { + t.plan(1); + + line = new OpenLayers.Geometry.LineString(components); + t.eq(line.toString(), + "LINESTRING(10 15,0 0)", + "toString() returns WKT"); + } + + function test_LineString_removeComponent(t) { + t.plan(2); + + OpenLayers.Geometry.Collection.prototype._removeComponent = + OpenLayers.Geometry.Collection.prototype.removeComponent; + OpenLayers.Geometry.Collection.prototype.removeComponent = + function(point) { g_removeComponent = point; }; + + line = new OpenLayers.Geometry.LineString(components); + + g_removeComponent = null; + line.removeComponent(components[0]); + t.ok(g_removeComponent == null, "point not removed if only 2 points in components"); + + line.components.push(new OpenLayers.Geometry.Point(4,4)); + line.removeComponent(components[0]); + t.ok(g_removeComponent, components[0], "point removed if 3 points in components"); + + OpenLayers.Geometry.Collection.prototype.removeComponent = + OpenLayers.Geometry.Collection.prototype._removeComponent; + } + + function test_LineString_move(t) { + t.plan(4); + + var components = [new OpenLayers.Geometry.Point(10,15), + new OpenLayers.Geometry.Point(0,0)]; + var line = new OpenLayers.Geometry.LineString(components); + + var x0 = components[0].x; + var y0 = components[0].y; + var x1 = components[1].x; + var y1 = components[1].y; + + var dx = 10 * Math.random(); + var dy = 10 * Math.random(); + line.move(dx, dy); + + t.eq(line.components[0].x, x0 + dx, "move() correctly modifies first x"); + t.eq(line.components[0].y, y0 + dy, "move() correctly modifies first y"); + t.eq(line.components[1].x, x1 + dx, "move() correctly modifies second x"); + t.eq(line.components[1].y, y1 + dy, "move() correctly modifies second y"); + } + + function test_LineString_rotate(t) { + t.plan(6); + + var components = [new OpenLayers.Geometry.Point(10,15), + new OpenLayers.Geometry.Point(0,0)]; + var geometry = new OpenLayers.Geometry.LineString(components); + + var originals = []; + var comp; + var angle = 2 * Math.PI * Math.random(); + var origin = new OpenLayers.Geometry.Point(10 * Math.random(), + 10 * Math.random()); + for(var i=0; i<geometry.components.length; ++i) { + comp = geometry.components[i]; + originals[i] = comp.rotate; + comp.rotate = function(a, o) { + t.ok(true, "rotate called for component " + i); + t.ok(a == angle, "rotate called with correct angle"); + t.ok(o == origin, "rotate called with correct origin"); + } + } + geometry.rotate(angle, origin); + + // restore the original rotate defs + for(var i=0; i<geometry.components.length; ++i) { + comp.rotate = originals[i]; + } + } + + function test_LineString_resize(t) { + t.plan(8); + + var tolerance = 1e-10; + + var components = [new OpenLayers.Geometry.Point(10 * Math.random(), + 10 * Math.random()), + new OpenLayers.Geometry.Point(10 * Math.random(), + 10 * Math.random())]; + var geometry = new OpenLayers.Geometry.LineString(components); + + var origin = new OpenLayers.Geometry.Point(10 * Math.random(), + 10 * Math.random()); + + var scale = 10 * Math.random(); + + var oldLength = geometry.getLength(); + var ret = geometry.resize(scale, origin); + t.ok(ret === geometry, "resize returns geometry"); + var newLength = geometry.getLength(); + t.ok((((newLength / oldLength) - scale) / scale) < tolerance, + "resize correctly changes the length of a linestring") + + var originals = []; + var comp; + for(var i=0; i<geometry.components.length; ++i) { + comp = geometry.components[i]; + originals[i] = comp.resize; + comp.resize = function(s, o) { + t.ok(true, "resize called for component " + i); + t.ok(s == scale, "resize called with correct scale"); + t.ok(o == origin, "resize called with correct origin"); + } + } + geometry.resize(scale, origin); + + // restore the original resize defs + for(var i=0; i<geometry.components.length; ++i) { + comp.resize = originals[i]; + } + + } + + function test_split(t) { + var wkt = OpenLayers.Geometry.fromWKT; + + var cases = [{ + msg: "no intersection", + g1: "LINESTRING(0 0, 0 1)", + g2: "LINESTRING(1 0, 1 1)", + exp: null + } , { + msg: "intersection at midpoint", + g1: "LINESTRING(0 0, 1 1)", + g2: "LINESTRING(1 0, 0 1)", + exp: ["LINESTRING(1 0, 0.5 0.5)", "LINESTRING(0.5 0.5, 0 1)"] + }, { + msg: "intersection at midpoint (reverse source/target)", + g1: "LINESTRING(1 0, 0 1)", + g2: "LINESTRING(0 0, 1 1)", + exp: ["LINESTRING(0 0, 0.5 0.5)", "LINESTRING(0.5 0.5, 1 1)"] + }, { + msg: "intersection at endpoint", + g1: "LINESTRING(0 0, 1 1)", + g2: "LINESTRING(1 0, 1 1)", + exp: null + }, { + msg: "midpoint intersection, no options", + g1: "LINESTRING(0 0, 2 2)", + g2: "LINESTRING(0 2, 2 0)", + exp: ["LINESTRING(0 2, 1 1)", "LINESTRING(1 1, 2 0)"] + }, { + msg: "midpoint intersection, edge false", + opt: {edge: false}, + g1: "LINESTRING(0 0, 2 2)", + g2: "LINESTRING(0 2, 2 0)", + exp: null + }, { + msg: "midpoint intersection, mutual", + opt: {mutual: true}, + g1: "LINESTRING(0 0, 2 2)", + g2: "LINESTRING(0 2, 2 0)", + exp: [["LINESTRING(0 0, 1 1)", "LINESTRING(1 1, 2 2)"], ["LINESTRING(0 2, 1 1)", "LINESTRING(1 1, 2 0)"]] + }, { + msg: "close intersection, no tolerance", + g1: "LINESTRING(0 0, 0.9 0.9)", + g2: "LINESTRING(0 2, 2 0)", + exp: null + }, { + msg: "close intersection, within tolerance", + opt: {tolerance: 0.2}, + g1: "LINESTRING(0 0, 0.9 0.9)", + g2: "LINESTRING(0 2, 2 0)", + exp: ["LINESTRING(0 2, 0.9 0.9)", "LINESTRING(0.9 0.9, 2 0)"] + }]; + + t.plan(cases.length); + var c, parts, part, midparts; + for(var i=0; i<cases.length; ++i) { + c = cases[i]; + var g1 = wkt(c.g1); + var g2 = wkt(c.g2); + var got = g1.split(g2, c.opt); + var exp = c.exp; + if(got instanceof Array) { + parts = []; + for(var j=0; j<got.length; ++j) { + part = got[j]; + if(part instanceof Array) { + midparts = []; + for(var k=0; k<part.length; ++k) { + midparts.push(part[k].toString()); + } + parts.push("[" + midparts.join(", ") + "]"); + } else { + parts.push(got[j].toString()); + } + } + got = parts.join(", "); + } + if(exp instanceof Array) { + parts = []; + for(var j=0; j<exp.length; ++j) { + part = exp[j]; + if(part instanceof Array) { + midparts = []; + for(var k=0; k<part.length; ++k) { + midparts.push(wkt(part[k]).toString()); + } + parts.push("[" + midparts.join(", ") + "]"); + } else { + parts.push(wkt(exp[j]).toString()); + } + } + exp = parts.join(", "); + } + t.eq(got, exp, "case " + i + ": " + c.msg); + } + + } + + + function test_distanceTo(t) { + var wkt = OpenLayers.Geometry.fromWKT; + var geoms = [ + wkt("POINT(0 0)"), + wkt("LINESTRING(-2 0, 0 -2, 2 -1, 2 0)") + ]; + + var cases = [{ + got: geoms[1].distanceTo(geoms[0]), + expected: Math.sqrt(2) + }, { + got: geoms[1].distanceTo(geoms[0], {details: true}), + expected: { + distance: Math.sqrt(2), + x0: -1, y0: -1, + x1: 0, y1: 0 + } + }]; + + t.plan(cases.length); + for(var i=0; i<cases.length; ++i) { + t.eq(cases[i].got, cases[i].expected, "case " + i); + } + + } + + function test_LineString_equals(t) { + t.plan(3); + + var x0 = Math.random() * 100; + var y0 = Math.random() * 100; + var x1 = Math.random() * 100; + var y1 = Math.random() * 100; + var point0 = new OpenLayers.Geometry.Point(x0, y0); + var point1 = new OpenLayers.Geometry.Point(x1, y1); + var geometry = new OpenLayers.Geometry.LineString([point0, point1]); + var equal = new OpenLayers.Geometry.LineString([point0, point1]); + var offX = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(x0 + 1, y0), + new OpenLayers.Geometry.Point(x1 + 1, y1)]); + var offY = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(x0, y0 + 1), + new OpenLayers.Geometry.Point(x1, y1 + 1)]); + t.ok(geometry.equals(equal), + "equals() returns true for a geometry with equivalent coordinates"); + t.ok(!geometry.equals(offX), + "equals() returns false for a geometry with offset x"); + t.ok(!geometry.equals(offY), + "equals() returns false for a geometry with offset y"); + } + + + function test_getVertices(t) { + t.plan(14); + + var points = [ + new OpenLayers.Geometry.Point(10, 20), + new OpenLayers.Geometry.Point(20, 30), + new OpenLayers.Geometry.Point(30, 40), + new OpenLayers.Geometry.Point(40, 50) + ]; + var line = new OpenLayers.Geometry.LineString(points); + + var verts = line.getVertices(); + t.ok(verts instanceof Array, "got back an array"); + t.eq(verts.length, points.length, "of correct length length"); + t.geom_eq(verts[0], points[0], "0: correct geometry"); + t.geom_eq(verts[1], points[1], "1: correct geometry"); + t.geom_eq(verts[2], points[2], "2: correct geometry"); + t.geom_eq(verts[3], points[3], "3: correct geometry"); + + // get nodes only + var nodes = line.getVertices(true); + t.ok(nodes instanceof Array, "[nodes only] got back an array"); + t.eq(nodes.length, 2, "[nodes only] of correct length length"); + t.geom_eq(nodes[0], points[0], "[nodes only] first: correct geometry"); + t.geom_eq(nodes[1], points[points.length-1], "[nodes only] last: correct geometry"); + + // no nodes + var nodes = line.getVertices(false); + t.ok(nodes instanceof Array, "[no nodes] got back an array"); + t.eq(nodes.length, 2, "[no nodes] of correct length length"); + t.geom_eq(nodes[0], points[1], "[no nodes] first: correct geometry"); + t.geom_eq(nodes[1], points[2], "[no nodes] last: correct geometry"); + + } + + + function test_LineString_clone(t) { + t.plan(2); + + var x0 = Math.random() * 100; + var y0 = Math.random() * 100; + var x1 = Math.random() * 100; + var y1 = Math.random() * 100; + var point0 = new OpenLayers.Geometry.Point(x0, y0); + var point1 = new OpenLayers.Geometry.Point(x1, y1); + var geometry = new OpenLayers.Geometry.LineString([point0, point1]); + var clone = geometry.clone(); + t.ok(clone instanceof OpenLayers.Geometry.LineString, + "clone() creates an OpenLayers.Geometry.LineString"); + t.ok(geometry.equals(clone), "clone has equivalent coordinates"); + } + + function test_getGeodesicLength(t) { + + // expected values from http://www.movable-type.co.uk/scripts/latlong-vincenty.html + var cases = [{ + wkt: "LINESTRING(0 0, -10 45)", + exp: 5081689.690 + }, { + wkt: "LINESTRING(-10 45, 0 0)", + exp: 5081689.690 + }, { + wkt: "LINESTRING(0 0, -10 45, -20 50)", + exp: 5081689.690 + 935018.062 + }]; + t.plan(cases.length); + + var geom, got; + for(var i=0; i<cases.length; ++i) { + geom = new OpenLayers.Geometry.fromWKT(cases[i].wkt); + got = geom.getGeodesicLength(); + t.eq(Math.round(got), Math.round(cases[i].exp), "[case " + i + "] length calculated"); + } + + } + + function test_LineString_simplify(t){ + t.plan(8); + var ls1 = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(0,0), + new OpenLayers.Geometry.Point(1,2.1), + new OpenLayers.Geometry.Point(1.8,3.8), + new OpenLayers.Geometry.Point(2,4), + new OpenLayers.Geometry.Point(3,4), + new OpenLayers.Geometry.Point(4,4.5), + new OpenLayers.Geometry.Point(5,5) + + ]); + var ls2 = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(0,0), + new OpenLayers.Geometry.Point(1,2.1), + new OpenLayers.Geometry.Point(1.8,3.8), + new OpenLayers.Geometry.Point(2,4), + new OpenLayers.Geometry.Point(3,4), + new OpenLayers.Geometry.Point(4,4.5), + new OpenLayers.Geometry.Point(5,5), + new OpenLayers.Geometry.Point(0,0) + + ]); + var ls3 = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(0,0), + new OpenLayers.Geometry.Point(1,1) + ]); + var ls5 = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(0,0), + new OpenLayers.Geometry.Point(1,1), + new OpenLayers.Geometry.Point(2,2), + new OpenLayers.Geometry.Point(3,3), + new OpenLayers.Geometry.Point(4,4), + new OpenLayers.Geometry.Point(5,5) + + ]); + var ls6 = new OpenLayers.Geometry.LineString([ + new OpenLayers.Geometry.Point(0,0), + new OpenLayers.Geometry.Point(1,1), + new OpenLayers.Geometry.Point(1,1), + new OpenLayers.Geometry.Point(3,2) + ]); + + t.ok(ls1 instanceof OpenLayers.Geometry.LineString, 'LineString is instance of OpenLayers.Geometry.LineString'); + var simplified1 = ls1.simplify(0.5); + t.ok(simplified1 instanceof OpenLayers.Geometry.LineString, 'Simplified LineString is instance of OpenLayers.Geometry.LineString'); + t.ok(simplified1.getVertices().length <= ls1.getVertices().length, 'Simplified LineString has less or equal number of vertices'); + // The simplified version is derived from PostGIS function ST_SIMPLIFY() + t.ok(simplified1.toString() === 'LINESTRING(0 0,1.8 3.8,5 5)', 'LineString 1 was simplified correctly'); + var simplified2 = ls2.simplify(0.5); + // The simplified version is derived from PostGIS function ST_SIMPLIFY() + t.ok(simplified2.toString() === 'LINESTRING(0 0,1.8 3.8,5 5,0 0)', 'LineString 2 was simplified correctly'); + var simplified3 = ls3.simplify(0.5); + t.ok(simplified3.toString() === ls3.toString(), 'LineString with 2 vertices is left untouched'); + var simplified5 = ls5.simplify(0.0); + t.ok(simplified5.toString() === 'LINESTRING(0 0,5 5)', 'A tolerance of 0 returns the optimized version needless vertices'); + var simplified6 = ls6.simplify(0.0); + t.ok(simplified6.toString() === 'LINESTRING(0 0,1 1,3 2)', 'A tolerance of 0 returns the optimized version without doubled vertices'); + } + + </script> +</head> +<body> +</body> +</html> |