Height map color to grayscale

[laurent_delrieu]

Hi Ivelin; As colors could be transformed to point in a cube with {-1,-1,-1,} and {1,1,1} extremities, you could first draw a curve representing the gradiant and then at each parameter of the curve affect a greyscale. If not precise you could use GraphMapper.
See there

Populate points according to colored mesh

I have a radiation analysis mesh and would like to populate points onform01.gh (179.5 KB) the mesh according to the color of the obtained colored mesh. (i don’t know if I’m right)almost similar that wen populate a surface with image sampler. is it possible ? [image]

Point density from a coloured mesh

Here is a solution, as I have not searched for the equation on the gradient, here is a way that will work if you stay in Grasshopper Gradient.It uses the fact that Color is transformed to point in Grasshopper, points that are in a cube from {-1,-1,-1} to {1,1,1} I put a Graph Mapper in order for you to tune the density of points. [image] [image] I[gradient] from_gradient_to_populate_points.gh (190.0 KB)