Good question. I guess it depends on your definition of “direct modeling”. I think being able to control geometry is important in any CAD tool. Constraints in a direct model are very different than in a history-based model. In…"
"The torus has always been a bit of a challenge for direct editing. There are several parameters that are involved with the torus; the angle, and the major and minor radius. With direct editing most tools can access and modify the angle, as Blake…"
"Poorvesh, I just uploaded another video regarding freeform surfacing. I know it still does not answer your questions, but I will try to take the example further to attempt to answer them in future videos."
"True, it is slower. When working with analytic geometry (planes, cylinders, …) we're interacting with only a few elements (vertices, edges and faces). When working with freeform surfaces we're interacting with potentially many…"
Worked at HP as a machinist, then an engineer. Got involved in CAD and eventually started using SolidDesigner. Then worked at CoCreate for a while. Started my own consulting company n 2006. And just recently started working with PTC.
My postings on this site are my own and don't necessarily represent the opinions, positions and strategies of my employer or any other company.
Just want to say, that your blog came up during my search for modeling software when I was evaluating different kinds. I had had experience with Inventor and Solidworks but my new employer only owned a 2D Autocad which was like going back to the stone age after you have done 3D.
Anyway, you had a lot to say about explicit/direct/natural modeling, which I had never even heard of. I had just assumed history trees were the way it was done. Thank you so much for opening my eyes. These programs eliminate everything that had frustrated me with Inventor and Solidworks.
It's funny to me, (dating myself here) I remember debates about was 3D CAD really going to be faster/better than 2D CAD, and I thought at the time, well, of course isn't it obvious? That was before struggling for hours monkeying through a history tree. Now its funny to me that this history vs.explicit debate exists, because it seems obvious which is better. That being said, CAD is like religion, to each his own. Anyway, you opened my mind and I can't thank you enough.
Hi Paul, welcome to SpaceClaiming.
I'm glad to notice that you have already started to look around and joined some discussions.
I suggest you to join some groups too, based on your interests. And please feel free to invite friends and colleagues to this community, if you wish.