is there anybody have examples for image sampler !

Replies to This Discussion

Permalink Reply by Michael Pryor on August 8, 2013 at 8:36pm

http://formularch.blogspot.com/2012/04/gh-image-sample.html?m=1

Permalink Reply by 雷锋 on August 8, 2013 at 8:47pm

sorry I can't see this web page just for Chinese firewall !

Permalink Reply by djordje on August 9, 2013 at 3:47am

This is the definition from the link Michael gave you:

Reading Grasshopper Primer, would clarify most of your questions.
Take a look at the tutorials section too with additional video tutorials, books and blogs.

Permalink Reply by 雷锋 on August 9, 2013 at 3:55am

thanks very much !In china ,we can't see the videos from this web ,also some other resourses !so learn grasshopper is so difficult !but I love it !

Permalink Reply by 雷锋 on August 9, 2013 at 4:16am

Permalink Reply by 雷锋 on August 8, 2013 at 8:58pm

I just need some .gh files !

Permalink Reply by David Rutten on August 9, 2013 at 2:53am

What's your question?

--

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by 雷锋 on August 9, 2013 at 3:52am

I just want to know how to use this companent !

Permalink Reply by Danny Boyes on August 9, 2013 at 4:19am

Here's a link to my tips for this component:

http://www.grasshopper3d.com/forum/topics/flexible-domain-for-image...

Permalink Reply by 雷锋 on August 9, 2013 at 5:10am

thanks!I get it!

Permalink Reply by David Rutten on August 9, 2013 at 5:06am

The basic idea of the image sampler is as follows:

1. You define an image.
2. You define the physical size of your image. By default it's 0.0 to 1.0 along both x and y, but maybe you need a different size.
3. You define what data you want to sample. Colours, Red, Green, Blue, Transparency, Brightness, Hue etc. etc.
4. You define the tiling/wrapping behaviour. Does the image repeat forever, or does it repeat mirrored, or not at all?
5. Then you sample the image at given (x,y) coordinates. The output will either be the colour at that location, or the brightness, or the hue etc. depending on your sampling channel setting.

--

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by 雷锋 on August 9, 2013 at 5:09am

thanks!I get it!