TiddlyWiki5/plugins/tiddlywiki/geospatial/operators/measurement.js
Mario Pietsch 8aa558eb2c
Remove module function wrapper and add matching configurations for dprint and eslint (#7596)
* remove blks first try

* dprint.json seems to be OK, some forgotten functions

* add some more space-after-keyword settings

* server remove blks

* add **/files to dprint exclude

* dprint.js fixes a typo

* add boot.js and bootprefix.js to dprint exclude

* dprint change dprint.json

* add dprint fmt as script

* remove jslint comments

* fix whitespace

* fix whitespace

* remove function-wrapper from geospatial plugin

* fix whitespace

* add function wrapper to dyannotate-startup

* remove dpring.json
2025-03-21 17:22:57 +00:00

49 lines
1.4 KiB
JavaScript

/*\
title: $:/plugins/tiddlywiki/geospatial/operators/measurement.js
type: application/javascript
module-type: filteroperator
Filter operators for geospatial measurement
\*/
"use strict";
var turf = require("$:/plugins/tiddlywiki/geospatial/turf.js"),
geotools = require("$:/plugins/tiddlywiki/geospatial/geotools.js");
var VALID_UNITS = ["miles","kilometers","radians","degrees"],
DEFAULT_UNITS = "miles";
exports.geodistance = function(source,operator,options) {
var from = geotools.parsePoint(operator.operands[0]),
to = geotools.parsePoint(operator.operands[1]),
units = operator.operands[2] || DEFAULT_UNITS;
if(VALID_UNITS.indexOf(units) === -1) {
units = DEFAULT_UNITS;
}
return [JSON.stringify(turf.distance(from,to,{units: units}))];
};
exports.geonearestpoint = function(source,operator,options) {
var target = geotools.parsePoint(operator.operands[0]),
featureCollection = {
"type": "FeatureCollection",
"features": []
};
source(function(tiddler,title) {
var fc = $tw.utils.parseJSONSafe(title);
if(fc) {
if(fc.type === "FeatureCollection" && $tw.utils.isArray(fc.features)) {
Array.prototype.push.apply(featureCollection.features,fc.features);
} else if(fc.type === "Feature") {
featureCollection.features.push(fc);
}
}
});
if(featureCollection.features.length > 0) {
return [JSON.stringify(turf.nearestPoint(target,featureCollection))];
} else {
return [];
}
};