Physical surface curve intersect using trees

Hi,
I got two trees with an equal amount of branches. One tree has lines the other planes. For the past few hours I've been trying to generate the intersection points between branch n in the first tree and branch n in the second tree.
The closest I can get is the intersection points between all of the lines from all branches and all of the planes.

Any help will be much appreciated

Yshai

Replies to This Discussion

Permalink Reply by James Coleman on February 15, 2010 at 3:04pm

A screenshot would be helpful in explaining a solution, probably a few different ways to sort it out.

Permalink Reply by yshai on February 15, 2010 at 3:28pm

here they are.

Basically I'm creating a device for generating perspectives. Notice the extra geometry created when lines intersect more then one plane.

Thank you for your time.

Attachments:

help.jpg, 300 KB
help.ghx, 209 KB

Permalink Reply by Matt Gaydon on February 15, 2010 at 4:58pm

Any chance of knowing what goes into the geo parameters and the brep parameters so i can see whats happening?

Permalink Reply by yshai on February 15, 2010 at 5:23pm

Thanks.

Attachments:

help.3dm, 105 KB

Permalink Reply by Matt Gaydon on February 15, 2010 at 6:16pm

Hey Yshai

Thanks for that i have fixed it (i think). I have also posted you up a teaked version of the code tweaked the code a little to make it smaller and faster.

All i changed on your code was to add a graft component between the final rotated surfaces and the input into the surface curve intersect component and unflattened all the inputs into the S and C of these components.

In the tweaked code i rewrote the Rad input to Degrees and put in the expression Rad(a) into the A of the rotate component, i also changed the other rotate to an rotate 3D and thus removed the line component. (You may want to consider how the numbers are input here as don't change with the start slider?) and finally i convert the Surface intersect Crv to Surface intersect line as if the only output required is the points there is no need to compute all the other extra outputs that come with Surface Curve Intersect.

Hope this helps

Matt

Attachments:

help-fixed.ghx, 218 KB
Help-Fixed+Re-Edit.ghx, 195 KB

Permalink Reply by yshai on February 16, 2010 at 11:58am

Ten times better. Thanks for your help.

Permalink Reply by taz on February 15, 2010 at 7:02pm

yshai,

That's a fun little definition. I think I basically recreated your definition, but in a more flexible fashion (similar to Matt's suggestions).

It's still breakable, but it should work by referencing any number of rectangular objects.

-taz

Attachments: