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https://github.com/maxogden/geojson-js-utils.git
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ba0094f653
function `pnpoly` forgot to add the first point again. See http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html
53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
var gju = require('./')
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var diagonalUp = { "type": "LineString","coordinates": [
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[0, 0], [10, 10]
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]}
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var diagonalDown = { "type": "LineString","coordinates": [
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[10, 0], [0, 10]
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]}
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var farAway = { "type": "LineString","coordinates": [
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[100, 100], [110, 110]
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]}
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if (!gju.lineStringsIntersect(diagonalUp, diagonalDown)) throw new Error()
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if (gju.lineStringsIntersect(diagonalUp, farAway)) throw new Error()
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var box = {
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"type": "Polygon",
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"coordinates": [
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[ [0, 0], [10, 0], [10, 10], [0, 10] ]
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]
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}
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var inBox = {"type": "Point", "coordinates": [5, 5]}
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var outBox = {"type": "Point", "coordinates": [15, 15]}
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if (!gju.pointInPolygon(inBox, box)) throw new Error()
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if (gju.pointInPolygon(outBox, box)) throw new Error()
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if (gju.drawCircle(10, {"type": "Point", "coordinates": [0, 0]}).coordinates[0].length !== 15) throw new Error()
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if (gju.drawCircle(10, {"type": "Point", "coordinates": [0, 0]}, 50).coordinates[0].length !== 50) throw new Error()
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var centroid = gju.rectangleCentroid(box)
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if (centroid.coordinates[0] !== 5) throw new Error()
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if (centroid.coordinates[1] !== 5) throw new Error()
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var fairyLand = {"type": "Point", "coordinates": [-122.260000705719, 37.80919060818706]}
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var navalBase = {"type": "Point", "coordinates": [-122.32083320617676, 37.78774223089045]}
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if (Math.floor(gju.pointDistance(fairyLand, navalBase)) !== 5852) throw new Error()
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var point = {"type": "Point", "coordinates": [ 705, 261 ]};
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var poly = {"type": "Polygon", "coordinates": [ [702.5,344.50000000000006], [801.890625,
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245.109375], [749.7351485148515,234.28465346534657] ]};
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if (gju.pointInPolygon(point,poly)) throw new Error();
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point = {"type": "Point", "coordinates": [0.5, 0.5]};
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poly = {"type": "Polygon", "coordinates": [[[0, 2], [2, 2], [2,0]]]};
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if (gju.pointInPolygon(point,poly)) throw new Error();
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console.log('all passed') |