When I add a polygon, the entire area of the map is filled, and the polygon is “cut” out of it. I expect a simple polygon to be rendered. Here is a live example https://codesandbox.io/s/lsz8qh This is my topojson ` rendering now what polygon i expect to see Answer Because the coordinates in the array are counterclockwise if positioned clockwise,
Tag: topojson
Implement JS function with methods in scalajs
I’m trying to create a world map with topojson and d3-geo using scalajs based on the following example: How-to-create-pure-react-SVG-maps-with-topojson-and-d3-geo My biggest issue so far is what I don’t understand how I can implement geoEqualEarth() and geoPath() functions from d3-geo using scala since both of them have a number of methods, for example const projection = geoEqualEarth().scale(160).translate([ 800 / 2, 450
Is it possible to determine if a GeoJSON point is inside a GeoJSON polygon using JavasScript?
Is it possible to determine whether a GeoJSON point at a given lat,lon lies within a given GeoJSON polygon using only JavaScript (either through d3, topojson, or any other way)? For example, I can draw a map showing countries in the UK based on the tutorial here. I then have a some points which have coordinates but no indication as