d1b00824fc
This matches the factors in the other methods and the default of the original algorithm. Having this set at 1 before can be considered as a bug.
373 lines
12 KiB
HTML
373 lines
12 KiB
HTML
<html>
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<head>
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<script src="../OLLoader.js"></script>
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<script type="text/javascript">
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var flatPoints;
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var floats, smallFloats, encodedFloats;
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var signedIntegers, encodedSignedIntegers;
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var unsignedIntegers, encodedUnsignedIntegers;
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function resetTestingData() {
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flatPoints = [38.50000, -120.20000,
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40.70000, -120.95000,
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43.25200, -126.45300];
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floats = [0.00, 0.15, -0.01, -0.16, 0.16, 0.01];
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smallFloats = [0.00000, 0.00015, -0.00001, -0.00016, 0.00016, 0.00001];
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encodedFloats = '?]@^_@A';
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signedIntegers = [0, 15, -1, -16, 16, 1];
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encodedSignedIntegers = '?]@^_@A';
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unsignedIntegers = [0, 30, 1, 31, 32, 2, 174];
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encodedUnsignedIntegers = '?]@^_@AmD';
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}
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var basePoints = new Array(
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new Array(3850000, -12020000),
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new Array(4070000, -12095000),
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new Array(4325200, -12645300)
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);
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var points = [
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new OpenLayers.Geometry.Point(-120.200, 38.500),
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new OpenLayers.Geometry.Point(-120.950, 40.700),
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new OpenLayers.Geometry.Point(-126.453, 43.252)
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];
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var singlePoint = new OpenLayers.Feature.Vector(points[0]);
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var linestring = new OpenLayers.Feature.Vector(
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new OpenLayers.Geometry.LineString(points)
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);
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var multipoint = new OpenLayers.Feature.Vector(
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new OpenLayers.Geometry.MultiPoint(points)
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);
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var linearring = new OpenLayers.Feature.Vector(
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new OpenLayers.Geometry.LinearRing(points)
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);
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var polygon = new OpenLayers.Feature.Vector(
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new OpenLayers.Geometry.Polygon([
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new OpenLayers.Geometry.LinearRing(points)
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])
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);
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var encoded = "_p~iF~ps|U_ulLnnqC_mqNvxq`@";
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function test_Format_EncodedPolyline_constructor(t) {
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t.plan(4);
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var options = {'foo': 'bar'};
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var format = new OpenLayers.Format.EncodedPolyline(options);
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t.ok(format instanceof OpenLayers.Format.EncodedPolyline,
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"new OpenLayers.Format.EncodedPolyline returns object" );
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t.eq(format.foo, "bar", "constructor sets options correctly");
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t.eq(typeof format.read, "function", "format has a read function");
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t.eq(typeof format.write, "function", "format has a write function");
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}
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function test_Format_EncodedPolyline_read(t) {
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t.plan(5);
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var format = new OpenLayers.Format.EncodedPolyline();
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t.ok(linestring.geometry.equals(format.read(encoded).geometry),
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"format correctly reads encoded polyline");
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format = new OpenLayers.Format.EncodedPolyline({
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geometryType: "multipoint"
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});
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t.ok(multipoint.geometry.equals(format.read(encoded).geometry),
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"format correctly reads encoded multipoint");
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format.geometryType = "linearring";
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t.ok(linearring.geometry.equals(format.read(encoded).geometry),
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"format correctly reads encoded linearring");
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format.geometryType = "polygon";
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t.ok(polygon.geometry.equals(format.read(encoded).geometry),
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"format correctly reads encoded polygon");
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format.geometryType = "point";
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t.ok(points[0].equals(format.read(encoded).geometry),
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"format correctly reads encoded point");
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}
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function test_Format_EncodedPolyline_decode(t) {
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t.plan(6);
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var format = new OpenLayers.Format.EncodedPolyline();
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var decodedPoints = format.decode(encoded, 2);
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for (i in decodedPoints) {
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var point = basePoints[i];
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var decodedPoint = decodedPoints[i];
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t.eq(parseInt(decodedPoint[0] * 1e5), point[0]);
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t.eq(parseInt(decodedPoint[1] * 1e5), point[1]);
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}
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}
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function test_Format_EncodedPolyline_write(t) {
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t.plan(5);
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.write(linestring), encoded,
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"format correctly writes encoded polyline");
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t.eq(format.write(multipoint), encoded,
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"format correctly writes encoded multipoint");
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// Different output than encoded,
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// because polygon closing point is included
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t.eq(format.write(linearring),
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"_p~iF~ps|U_ulLnnqC_mqNvxq`@~b_\\ghde@",
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"format correctly writes encoded linearring");
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t.eq(format.write(polygon),
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"_p~iF~ps|U_ulLnnqC_mqNvxq`@~b_\\ghde@",
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"format correctly writes encoded polygon");
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t.eq(format.write(singlePoint), "_p~iF~ps|U",
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"format correctly writes encoded point");
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}
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function test_Format_EncodedPolyline_encode(t) {
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t.plan(1);
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encode(basePoints, 2, 1), encoded);
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}
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function test_encodeDeltas_returns_expected_value(t) {
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t.plan(1);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeDeltas(flatPoints, 2), encoded);
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}
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function test_decodeDeltas_returns_expected_value(t) {
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t.plan(1);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeDeltas(encoded, 2), flatPoints);
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}
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function test_encodeFloats_returns_expected_value(t) {
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t.plan(3);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeFloats(smallFloats), encodedFloats);
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resetTestingData();
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t.eq(format.encodeFloats(smallFloats, 1e5), encodedFloats);
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t.eq(format.encodeFloats(floats, 1e2), encodedFloats);
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}
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function test_decodeFloats_returns_expected_value(t) {
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t.plan(3);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeFloats(encodedFloats), smallFloats);
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t.eq(format.decodeFloats(encodedFloats, 1e5), smallFloats);
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t.eq(format.decodeFloats(encodedFloats, 1e2), floats);
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}
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function test_encodeSignedIntegers_returns_expected_value(t) {
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t.plan(1);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeSignedIntegers(
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signedIntegers), encodedSignedIntegers);
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}
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function test_decodeSignedIntegers_returns_expected_value(t) {
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t.plan(1);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeSignedIntegers(
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encodedSignedIntegers), signedIntegers);
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}
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function test_encodeUnsignedIntegers_returns_expected_value(t) {
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t.plan(1);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeUnsignedIntegers(
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unsignedIntegers), encodedUnsignedIntegers);
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}
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function test_decodeUnsignedIntegers_returns_expected_value(t) {
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t.plan(1);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeUnsignedIntegers(
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encodedUnsignedIntegers), unsignedIntegers);
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}
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function test_encodeFloat_returns_expected_value(t) {
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t.plan(12);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeFloat(0.00000), '?');
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t.eq(format.encodeFloat(-0.00001), '@');
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t.eq(format.encodeFloat(0.00001), 'A');
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t.eq(format.encodeFloat(-0.00002), 'B');
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t.eq(format.encodeFloat(0.00002), 'C');
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t.eq(format.encodeFloat(0.00015), ']');
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t.eq(format.encodeFloat(-0.00016), '^');
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t.eq(format.encodeFloat(-0.1, 10), '@');
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t.eq(format.encodeFloat(0.1, 10), 'A');
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t.eq(format.encodeFloat(16 * 32 / 1e5), '__@');
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t.eq(format.encodeFloat(16 * 32 * 32 / 1e5), '___@');
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// from the "Encoded Polyline Algorithm Format" page at Google
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t.eq(format.encodeFloat(-179.9832104), '`~oia@');
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}
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function test_decodeFloat_returns_expected_value(t) {
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t.plan(12);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeFloat('?'), 0.00000);
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t.eq(format.decodeFloat('@'), -0.00001);
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t.eq(format.decodeFloat('A'), 0.00001);
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t.eq(format.decodeFloat('B'), -0.00002);
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t.eq(format.decodeFloat('C'), 0.00002);
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t.eq(format.decodeFloat(']'), 0.00015);
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t.eq(format.decodeFloat('^'), -0.00016);
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t.eq(format.decodeFloat('@', 10), -0.1);
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t.eq(format.decodeFloat('A', 10), 0.1);
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t.eq(format.decodeFloat('__@'), 16 * 32 / 1e5);
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t.eq(format.decodeFloat('___@'), 16 * 32 * 32 / 1e5);
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// from the "Encoded Polyline Algorithm Format" page at Google
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t.eq(format.decodeFloat('`~oia@'), -179.98321);
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}
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function test_encodeSignedInteger_returns_expected_value(t) {
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t.plan(10);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeSignedInteger(0), '?');
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t.eq(format.encodeSignedInteger(-1), '@');
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t.eq(format.encodeSignedInteger(1), 'A');
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t.eq(format.encodeSignedInteger(-2), 'B');
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t.eq(format.encodeSignedInteger(2), 'C');
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t.eq(format.encodeSignedInteger(15), ']');
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t.eq(format.encodeSignedInteger(-16), '^');
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t.eq(format.encodeSignedInteger(16), '_@');
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t.eq(format.encodeSignedInteger(16 * 32), '__@');
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t.eq(format.encodeSignedInteger(16 * 32 * 32), '___@');
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}
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function test_decodeSignedInteger_returns_expected_value(t) {
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t.plan(10);
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resetTestingData();
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeSignedInteger('?'), 0);
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t.eq(format.decodeSignedInteger('@'), -1);
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t.eq(format.decodeSignedInteger('A'), 1);
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t.eq(format.decodeSignedInteger('B'), -2);
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t.eq(format.decodeSignedInteger('C'), 2);
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t.eq(format.decodeSignedInteger(']'), 15);
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t.eq(format.decodeSignedInteger('^'), -16);
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t.eq(format.decodeSignedInteger('__@'), 16 * 32);
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t.eq(format.decodeSignedInteger('___@'), 16 * 32 * 32);
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t.eq(format.decodeSignedInteger('_@'), 16);
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}
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function test_encodeUnsignedInteger_returns_expected_value(t) {
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t.plan(10);
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.encodeUnsignedInteger(0), '?');
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t.eq(format.encodeUnsignedInteger(1), '@');
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t.eq(format.encodeUnsignedInteger(2), 'A');
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t.eq(format.encodeUnsignedInteger(30), ']');
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t.eq(format.encodeUnsignedInteger(31), '^');
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t.eq(format.encodeUnsignedInteger(32), '_@');
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t.eq(format.encodeUnsignedInteger(32 * 32), '__@');
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t.eq(format.encodeUnsignedInteger(5 * 32 * 32), '__D');
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t.eq(format.encodeUnsignedInteger(32 * 32 * 32), '___@');
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// from the "Encoded Polyline Algorithm Format" page at Google
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t.eq(format.encodeUnsignedInteger(174), 'mD');
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}
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function test_decodeUnsignedInteger_returns_expected_value(t) {
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t.plan(10);
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var format = new OpenLayers.Format.EncodedPolyline();
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t.eq(format.decodeUnsignedInteger('?'), 0);
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t.eq(format.decodeUnsignedInteger('@'), 1);
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t.eq(format.decodeUnsignedInteger('A'), 2);
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t.eq(format.decodeUnsignedInteger(']'), 30);
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t.eq(format.decodeUnsignedInteger('^'), 31);
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t.eq(format.decodeUnsignedInteger('_@'), 32);
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t.eq(format.decodeUnsignedInteger('__@'), 32 * 32);
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t.eq(format.decodeUnsignedInteger('__D'), 5 * 32 * 32);
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t.eq(format.decodeUnsignedInteger('___@'), 32 * 32 * 32);
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// from the "Encoded Polyline Algorithm Format" page at Google
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t.eq(format.decodeUnsignedInteger('mD'), 174);
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}
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</script>
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</head>
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<body>
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</body>
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</html>
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