Image sampler question

Does anyone know how to create an undulating surface from the 'texture' of an image? I'm aiming to capture the height variations from the waves in the attached image and create a surface from that.

In gh I moved the points derived from the image and interpolated a curve in both directions, but can't seem to create a surface from that. Any help is much appreciated!

Attachments:

wave texture_A.gh, 2.1 MB
water-reflections-sm.jpg, 427 KB

Replies to This Discussion

Permalink Reply by CCM68 on June 22, 2016 at 11:10am

Thank you!

Permalink Reply by Hyungsoo Kim on June 22, 2016 at 1:27am

This is probably the most common way.

Attachments:

wavetexture_A_re.gh, 11 KB

Permalink Reply by CCM68 on June 22, 2016 at 11:12am

Awesome, only problem is it's not quite working and I'm not sure why. Any ideas...

Attachments:

wavetexture_A_re.gh, 2.1 MB

Permalink Reply by Hyungsoo Kim on June 22, 2016 at 11:24am

Reset your graphmapper's X&Y domain fr 0 to 1.

Attachments:

wavetexture_A_rev2.gh, 2.1 MB

Permalink Reply by CCM68 on June 22, 2016 at 12:39pm

Got it much thanks!

Permalink Reply by CCM68 on June 23, 2016 at 12:38pm

Do you know how to map/project the sine wave surface I have to the rectangle surface where hexagons are currently mapped?... so the hexagons fall on the wave within the vertical rectangle

Attachments:

maphexagons & Wave.gh, 2.1 MB

Permalink Reply by Hyungsoo Kim on June 23, 2016 at 2:07pm

I'm not sure this is what you are after.
I roughly understand what you are trying to do but first of all, you'd be better off cleaning up your definition which is becoming a mess.

You'll need "Lunchbox" plug-in. Best.

Attachments:

maphexagonsWave_re.gh, 50 KB

Permalink Reply by CCM68 on June 23, 2016 at 4:20pm

Got it, awesome thank you!

Permalink Reply by CCM68 on June 23, 2016 at 7:51pm

Got a suggestion on how to create one closed curve from all the hexagons on that rippled surface? I can't seem to join them...

Permalink Reply by CCM68 on June 24, 2016 at 7:59am

So the expression [U + 1] that's plugged into the [surf from pnts] is shifting the new curve from its original place. How could I change it so its in the exact same place?

Attachments: