Solid modeling
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After getting my feet wet in the last post with my first IronPython application running inside AutoCAD, I decided it was time to attack a slightly more challenging problem: jigging a database-resident Solid3d object. The idea had come after I'd received a question by email from David Wolfe, who wanted to have a fully rendered […]
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This question came up recently on the AutoCAD .NET Discussion Group: how to create a Solid3d object which provides the user with the full set of grips to manipulate it (which I've abbreviated to "editable" in the title of this post :-). This comes down to a enhancements that were made in AutoCAD 2007 to […]
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This is the first post in a series looking at the new APIs in AutoCAD 2010, and follows on from this post looking at the migration steps required. I've copied the information in this post from the recently-published Platform Technologies Customization Newsletter, a quarterly newsletter available to ADN members. A big thank you to Stephen […]
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This post follows on from this previous one, where we looked at a technique for picking a face on an AutoCAD solid. Tony Tanzillo kindly pointed out this much cleaner solution for this problem, and also highlighted a really simple (and elegant) way to implement LookAt using standard AutoCAD commands. While I really like both […]
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This post has come out of an interesting discussion I had with Jim Cameron at the ADN party at AU 2008. He mentioned an idea, which he kindly later reminded me of by email, which was to develop an AutoCAD equivalent for Inventor's LookAt functionality. I didn't know about LookAt before this discussion, but it […]
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In a recent webcast, Gopinath Taget, from our DevTech Americas team, showed how to use the Brep API from a .NET application: something that was made possible in AutoCAD 2009. The Brep API in AutoCAD allows you to traverse the boundary representation of a Solid3d object. Without going into specifics - as this isn't really […]
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I've been threatening to implement this for a few posts, now, so I decided it was finally time for me to put my money where my mouth is. 🙂 This post extends the series I've been writing on turtle graphics (here's the most recent part, from which you'll find links to its predecessors). This series […]
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What, yet another part? The series that just goes on and on... 🙂 To catch up, here are parts 1, 2, 3, 4 and 5, and the original post. This post looks at more organic forms, once again, but this time in 3D. I had lots of fun with this one: I took the principle […]
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Once again I've ended up extending this series in a way I didn't originally expect to (and yes, that's a good thing :-). Here are parts 1, 2, 3 and 4, as well as the post that started it all. After thinking about my initial 3D implementation in Part 4, I realised that implementing pen […]
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This post demonstrates a simple check for whether a drawing is two or three dimensional. The code is almost embarrassingly simple, but then the question is significant and in the absence of a "Is3D" property on the Database object this is likely to prove useful for people. So how do we check whether a drawing […]