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Merge pull request #13749 from ahocevar/gml-polygon-ring-curve

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Support GML polygons with ring curves instead of linear rings
This commit is contained in:
Andreas Hocevar
2022-06-12 13:35:41 +02:00
committed by GitHub
parent 1f6d13836b e863960599
commit 0f1f3e70a7
3 changed files with 118 additions and 10 deletions
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71
test/browser/spec/ol/format/gml.test.js
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@@ -2252,6 +2252,77 @@ describe('ol.format.GML32', function () {
const serialized = format.writeGeometryNode(g);
expect(serialized.firstElementChild).to.xmleql(parse(text));
});
it('can read and write a curve geometry', function () {
const text =
'<gml:Curve xmlns:gml="http://www.opengis.net/gml/3.2" ' +
' srsName="CRS:84">' +
' <gml:segments>' +
' <gml:LineStringSegment>' +
' <gml:posList srsDimension="2">1 2 3 4</gml:posList>' +
' </gml:LineStringSegment>' +
' <gml:LineStringSegment>' +
' <gml:posList srsDimension="2">5 6 7 8</gml:posList>' +
' </gml:LineStringSegment>' +
' </gml:segments>' +
'</gml:Curve>';
const g = readGeometry(format, text);
expect(g).to.be.an(LineString);
expect(g.getCoordinates()).to.eql([
[1, 2, 0],
[3, 4, 0],
[5, 6, 0],
[7, 8, 0],
]);
format = new GML32({srsName: 'CRS:84', curve: true});
const serialized = format.writeGeometryNode(g);
// Conversion back to GML is not lossless, because we don't know
// the mapping of original LineString segements to the OpenLayers
// LineString geometry's coordinates.
const expected =
'<gml:Curve xmlns:gml="http://www.opengis.net/gml/3.2" ' +
' srsName="CRS:84">' +
' <gml:segments>' +
' <gml:LineStringSegment>' +
' <gml:posList srsDimension="2">1 2 3 4 5 6 7 8</gml:posList>' +
' </gml:LineStringSegment>' +
' </gml:segments>' +
'</gml:Curve>';
expect(serialized.firstElementChild).to.xmleql(parse(expected));
});
it('can read a polygon with a ring of curves', function () {
const text = `
<gml:Polygon xmlns:gml="http://www.opengis.net/gml/3.2" srsName="CRS:84">
<gml:exterior>
<gml:Ring>
<gml:curveMember>
<gml:Curve>
<gml:segments>
<gml:LineStringSegment interpolation="linear">
<gml:posList>1 2 3 4</gml:posList>
</gml:LineStringSegment>
<gml:LineStringSegment interpolation="linear">
<gml:posList>5 6 7 8</gml:posList>
</gml:LineStringSegment>
</gml:segments>
</gml:Curve>
</gml:curveMember>
</gml:Ring>
</gml:exterior>
</gml:Polygon>
`;
const g = readGeometry(format, text);
expect(g).to.be.an(Polygon);
expect(g.getCoordinates()).to.eql([
[
[1, 2, 0],
[3, 4, 0],
[5, 6, 0],
[7, 8, 0],
],
]);
});
});
describe('envelope', function () {