[bug]Brep&Brep intersection failed

Hi Developer and everyone,

Have a look at the two screenshot below. The difference is very tiny ,for I just moved the uper one a little .But the result was bad .Invaild curve was not expected. I will upload 3dm and gh def for futher debugging.

Attachments:

B&B.3dm, 49 KB
B&B bug.gh, 4 KB

Replies to This Discussion

Permalink Reply by David Rutten on July 8, 2011 at 4:14am

If you run the intersection in Rhino it also fails. In Rhino4 it gives no result, in Rhino5 it gives a wrong result.

I'll put it on the Rhino bugtracker, but there's nothing I personally can do about this. Since you're intersecting planar surfaces, you could try to resort to Plane|Plane intersection to get the correct line (that works), and then use a Line|Curve intersection to get the points at the extremes of the actual intersection line.

You can also use Curve|Plane to get the line extremes.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by David Rutten on July 8, 2011 at 4:15am

Like so.

David Rutten

david@mcneel.com

Poprad, Slovakia

Attachments:

BBbug.gh, 5 KB

Permalink Reply by Alpha222 on July 9, 2011 at 4:27am

Thanks David. This must be greatly help, but the file you posted is of GH0.8.0050 , I cant open it with 0.8.0013 .Can you post a screenshot to show the content ??Thanks again .

Permalink Reply by David Rutten on July 9, 2011 at 5:36am

Oops, I forgot I broke the file format in 0.8.0050 (I no longer include data in the file if it has default values in an attempt to reduce filesize).