Make compatible with crs:L.CRS.Simple

[collinotis]

@ursudio @bozdoz

It would be nice if this library was compatible with L.CRS.Simple coordinates. It looks like the heatmap scales with lat/long somehow so it doesnt really work too well. See image below. (I am using for indoor mapping) The code for the three points is below as well.

heatmap = new L.TileLayer.WebGLHeatMap(
{
size:1000000
opacity:0.7
alphaRange:0.001
gradientTexture:false
}
)

  heatmap.addDataPoint(50,0,100)
  heatmap.addDataPoint(0,0,100)
  heatmap.addDataPoint(70,0,100)

[collinotis]

if anyone has a quick fix for this, it would be a big help

[collinotis]

ah, i see it now, its in the _scale function