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- Xref: sparky comp.graphics:13502 alt.cad.autocad:1795
- Newsgroups: comp.graphics,alt.cad.autocad
- Path: sparky!uunet!munnari.oz.au!uniwa!cujo!martin
- From: martin@cs.curtin.edu.au (Martin Dougiamas)
- Subject: Reconstructing 3D solid from planar cross sections
- Message-ID: <martin.726422303@marsh>
- Keywords: reconstruction 3D solid autocad
- Sender: news@cujo.curtin.edu.au (News Manager)
- Organization: Curtin University of Technology
- Date: Thu, 7 Jan 1993 15:58:23 GMT
- Lines: 29
-
- I have a need to reconstruct a full 3D solid from a series of
- parallel planar cross-sections of the object. It needs to be
- implemented as a C extension to AutoCad. (using ADS)
-
- The 3D solid is a pretty free-form shape (it is in fact an
- underground ore body), and the slices are reasonably far apart.
- I envisage some sort of wireframe "skin" placed over the
- sections, defining the final 3D solid.
-
- All the references I have been able to find on this topic deal
- with reconstructing body parts from CAT-scans... the problem
- is they are not useful for the sort of irregular bodies I'm
- looking at, which may split apart and rejoin.
-
- Surely this has been done before!
- So if anyone has:
- a) any pointers to algorithms, ideas or references
- b) Actual C code
- c) Actual AutoCAD code!!
-
- Then I'd be so grateful I might possibly send you my first-born child.
-
- Martin
- --
- Your eyes are weary from staring at the screen. Your eyelids feel very heavy.
- You feel sleepy. Notice how restful it is to watch the cursor blink. Close your
- eyes. The opinions stated above are yours. You cannot imagine why you ever felt
- otherwise. When you awake you will follow up this post and enthusiastically
- agree with it. Then you will send all your money to martin@cs.curtin.edu.au.
-