Grasshopper

algorithmic modeling for Rhino

Jim Marsh
  • Baltimore, MD
  • United States
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How to sample a color from a bitmap using a point to extract closest pixel's color value?
3 Replies

I haven't been able to find any way to sample colors from a bitmap using "pixel coordinates" or something similar. Does anyone have an idea about this concept?Continue

Started this discussion. Last reply by Joseph Oster Jun 13.

 

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Joseph Oster replied to Jim Marsh's discussion How to sample a color from a bitmap using a point to extract closest pixel's color value?
Jun 13
Pieter Segeren replied to Jim Marsh's discussion How to sample a color from a bitmap using a point to extract closest pixel's color value?
"I read it like Jim was meaning this: toggle the Mona Lisa icon:"
Jun 13
Laurent Delrieu replied to Jim Marsh's discussion How to sample a color from a bitmap using a point to extract closest pixel's color value?
"Hello, there is no real Bitmap object in Rhino or Grasshopper. Bitmap is positionned on a mesh or a surface. If you look at my code here http://www.grasshopper3d.com/forum/topics/creating-a-knitting-pattern-of-an-image you will see that I use an…"
Jun 13
Jim Marsh posted a discussion

How to sample a color from a bitmap using a point to extract closest pixel's color value?

I haven't been able to find any way to sample colors from a bitmap using "pixel coordinates" or something similar. Does anyone have an idea about this concept?See More
Jun 13
Mostapha Sadeghipour Roudsari replied to Jim Marsh's discussion Ladybug Mesh Edges Triangulating in the group Ladybug Tools
"Hi Jim, You can create any mesh that you need and feed it into Ladybug for the analysis. In that case Ladybug will use the input mesh as it is. Mostapha"
May 10
Jim Marsh added a discussion to the group Ladybug Tools
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Ladybug Mesh Edges Triangulating

Is there anything I can do to clean up the way LB creates meshes? Even on rectangular surfaces, I always seem to get triangulated edges. Does this skew results at all, or is area of mesh face not connected to daylighting, radiation, and draft calculations? I've attached a screenshot example.JMSee More
May 8
Jim Marsh replied to Chuck Driesler's discussion COM "Class Not Registered" Error in the group Doodlebug
"Chuck, Should I remove the reference to "Illustrator" then add "Adobe Illustrator CC Type Library" under "IllustratorInterface"? If I try to add the Illustrator CC library found under COM, it says I already have that…"
Apr 11
Jim Marsh replied to Chuck Driesler's discussion COM "Class Not Registered" Error in the group Doodlebug
"Chuck, For some reason I don't have a "Reply" button for your last post. "RhinoCommon" I was able to relink. I don't have Grasshopper in my Rhino folder under appdata. Instead it is broken out as its own program. I…"
Apr 7
Jim Marsh replied to Chuck Driesler's discussion COM "Class Not Registered" Error in the group Doodlebug
"Thanks for the reply, Chuck. So I tried to follow your directions, but for some reason I seem to have things unlinked that you don't. Also, when I browse to the Illustrator COM, It adds a new reference rather than relinking Andrew's…"
Apr 5
Jim Marsh replied to Chuck Driesler's discussion COM "Class Not Registered" Error in the group Doodlebug
"Hey Chuck, How difficult was it to edit the code. I'm having the same problem with the versions not matching up and am interested in doing this. Jim"
Mar 16

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