CSG operation on axis

[Dennis]

Andy/Jeff,

When performing a boolean operation (subtract in this case), if one or more surfaces of one of my objects is aligned on the zero coordinate of one of the x/y/z axes, those surfaces sometimes disappear when they shouldn't. Seems to only happen when all points of a surface are at "0.0" on the same axis. Here's a sample:

Before:

http://bellsouthpwp.net/a/t/atomicd/booltest2.jpg

After (the missing circled area was at "0.0" on the X axis):

http://bellsouthpwp.net/a/t/atomicd/booltest3.jpg

Both objects were created as simple "Box"es.

I can move the objects off of the offending axis, and the problem goes away.

Here's a link to the sample file I used, but this behavior can be readily reproduced with any two boxes.

http://bellsouthpwp.net/a/t/atomicd/booltest.ac

Thanks,
Dennis

[Thaellin]

Hi, and sorry for the delayed reply.

I tried out your model and I do not see the problem with my version of the plugin. I show v1.1.1 in the DOS console and help|about plugins. This *should* be the same version availale in the latest replease of the plugin pack.

Let us know if you still have trouble.
-- Jeff

[Dennis]

Hmm - definitely looks like a version problem. Mine shows:

CSG plugin v1.01 - by Jeff Duncan <support 'at' virtualplatypus.com>.

I downloaded and installed the latest plugins for Windows from http://inivis.swmirror.com/plugins4win.zip , and the CSG plugin still comes up as 1.01. The timestampe in the .zip file for csg.p and csg.tcl are 10/16/03 and 9/22/03, respectively.

Let me know if you need more info from me.

Thanks,
Dennis

[Thaellin]

Hey Andy? What version of the plugin is currently packaged in the plugin pack? Can we get an update in there? I'm pretty sure you've got my latest (1.1.1 was in April).

-- Jeff

[Thaellin]

Keeping topic alive - unless repackaging the old plugin pack is a really heinous task, could we please get the latest csg.p in there?

If this is a problem I'll try to post it on my site - I just haven't been maintaining it since starting my new job 8P

Later,
-- Jeff

[Andy]

Sorry Jeff. It would be easier for me if you could email me a compiled copy that works with 4.0- I can put it up on here.

Andy

[Andy]

See the announcement section for an update to the boolean/csg plugin.

Andy