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Add geonearestpoint operator

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jeremy@jermolene.com
2023-04-04 21:49:22 +01:00
parent 28a33df91d
commit 2a19e20307
4 changed files with 66 additions and 0 deletions
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16
plugins/tiddlywiki/geospatial/operators/measurement.js
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@@ -28,4 +28,20 @@ exports.geodistance = function(source,operator,options) {
return [JSON.stringify(turf.distance(from,to,{units: units}))];
};
exports.geonearestpoint = function(source,operator,options) {
var target = geotools.parsePoint(operator.operands[0]),
points = [];
source(function(tiddler,title) {
var point = geotools.parsePoint(title);
if(point) {
points.push(point)
}
});
if(points.length > 0) {
return [JSON.stringify(turf.nearestPoint(target,turf.featureCollection(points)))];
} else {
return [];
}
};
})();