bertin.draw({
layers: [
{
type: "layer",
geojson: buffer,
strokeWidth: 3,
stroke: "#a66ecc",
fill: "none"
},
{
type: "layer",
geojson: intersection, // jsts
strokeWidth: 3,
stroke: "#a66ecc",
fill: "none"
},
{
type: "layer",
geojson: clip, // geotoolbox
strokeWidth: 3,
stroke: "#0f0",
fill: "none"
},
{ type: "layer", geojson: lines, strokeWidth: 1, stroke: "#f00" }
]
})
clip = geo.clip(lines, { clip: buffer })
polyJsts = geojsonReader.read(buffer.features[0].geometry)
intersection = {
const writer = new jsts.io.GeoJSONWriter();
const outLines = [];
lines.features.forEach((line) => {
const lineJsts = geojsonReader.read(line);
// console.log(lineJsts);
if (polyJsts.intersects(lineJsts.geometry)) {
const intersection = polyJsts.intersection(lineJsts.geometry);
outLines.push({
type: "Feature",
properties: line.properties,
geometry: writer.write(intersection)
});
}
});
return geo.featurecollection(outLines);
}
linesJsts = geojsonReader.read(lines)
buffer = geo.buffer(
{
type: "FeatureCollection",
features: [
{
type: "Feature",
geometry: {
type: "Point",
coordinates: [13.42, 52.516]
},
properties: {}
}
]
},
{ dist: 0.5 }
)
geojsonReader = new jsts.io.GeoJSONReader()
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