Earth - Projection - Change Bitmap - Select Colour

user405 · October 29, 2021, 9:08am

Hi There,

In the following file, which i got here from the Forum, i am wat to do the following:

Change the Bitmap from colour to black and white, and then slect only the black coloured points.

I would appreciate any tips!

johnharding · October 29, 2021, 10:44am

Right click on the image sampler and make it enabled, that’s all there is to it. It’s just that it’s hard to see when some special components like this are disabled, to be honest it took me 5 minutes to find the problem myself.

user405 · October 29, 2021, 1:23pm

Wha is it simple! Thanks!

user405 · October 29, 2021, 2:01pm

Now I would like to access the individual colour values: Black & White.
I trie to do so with the “smaller than” component, but jet no succec…
Any ideas?

HS_Kim · October 29, 2021, 2:10pm

Globus_re.gh (813.2 KB)

user405 · October 29, 2021, 2:22pm

Thanks! I will need to study this to understands its logic.

johnharding · October 30, 2021, 3:35pm

Not sure I completely understand what you need, but if you use the brightness filter on that image it will gives a binary value, then just dispatch the points using this:

anon39580149 · October 30, 2021, 4:22pm

You can use Member Index

Globus.gh (813.0 KB)