image sample problem

hi guy´s
i´m a rookie in Gh and i have some problems with the image sample definiton.
the aim is to get images of famous person of of little dots which throw shadows onto a wall-so the pitcure get a grey contrast an get more readalbe.
here a some result which i´m not happy with so far.

Replies to This Discussion

Permalink Reply by Michael Pryor on August 1, 2012 at 11:21am

whats the problem?

Permalink Reply by Henry on August 1, 2012 at 11:31am

the circles of the image sample defintion should be extrude like little dot´s

something like this...but i just get it to extrude to cylinders.

i would share the definition but i forgot in the office- will post it tomorrow!

Permalink Reply by Piotr on August 1, 2012 at 11:53am

Hi Henry

Use loft instead of extrude. Exchange height of extrusion with a loft distance or size of the upper circle (or both). That would be my approach.

Piotr

Permalink Reply by Henry on August 1, 2012 at 1:48pm

Hi Michael, Piotr

thanks for fast response! well i´m stuck at this point. i tried alot but failed all the time.

Attachments:

Imagesample_dots.3dm, 48 KB
Image sample.gh, 201 KB
Marilyn-Monroe-SF-143165532001.jpg, 57 KB

Permalink Reply by Danny Boyes on August 1, 2012 at 2:07pm

How about this as a different approach for creating the truncated cones

1) Create an Axis Line in the centre of the Cone (SDL)

2) Move the End Points of the Line to the form the edge of the cone.

3) Revolve around the axis

4) Cap

Permalink Reply by Piotr on August 1, 2012 at 2:12pm

Danny

It's quite clever but I think Henry wants every element to have the same radius at the base of the volume or am I wrong ?

Permalink Reply by Henry on August 2, 2012 at 1:12am

Good morning

Nope that is going into the right direction. the elements could have a different radius a the base! thats fine. but the height of the cones should be the same and fixed. so if i change the grid extension the cones should scale with it and keep there proportions.

Permalink Reply by Danny Boyes on August 2, 2012 at 1:35am

Just have a constant input to the L of the SDL component to get the same height across the board. You will probably need a maximum component after the division so that you prevent the cones having no thickness at all.

Permalink Reply by Henry on August 2, 2012 at 9:18am

So here is an image. the definition works fine-thanks Danny! But why have your red dots different height? I just want to try it with different height to see how it looks but even without a constant input to the L of the SDL component the height is equal for each dot. What i´m doing wrong?