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Author Topic: CADSys4 3D.  (Read 1433 times)

mdadali

  • Guest
CADSys4 3D.
« on: January 14, 2025, 02:53:57 pm »
Hello,

Piero has released the source code for the 3D version of CADSys4,
and Michal has integrated it into the Online Package Manager.
A simple 3D example is also included.
Here is a video where you can see the 3D example: https://www.hackcad.com/maindownloads/cadsys43_3d_test.mkv.
Best regards,
Maurog

zamtmn

  • Hero Member
  • *****
  • Posts: 646
Re: CADSys4 3D.
« Reply #1 on: January 16, 2025, 09:58:22 am »
Hi! That's great news. I watched the video, and the coord system origin marker looks very strange with arrows that are not parallel to the grid.

mdadali

  • Guest
Re: CADSys4 3D.
« Reply #2 on: January 16, 2025, 02:42:34 pm »
Hello, thank you for your feedback. I don’t work with the 3D version, and honestly, I don’t have much knowledge in the 3D field either. I just compiled and ran the program on Linux. Since Piero is really very busy, he doesn’t participate in the forum. I will try to forward your concern to him.

Best regards,
Maurog

mdadali

  • Guest
Re: CADSys4 3D.
« Reply #3 on: January 16, 2025, 03:00:04 pm »
In a perspective view, the distances between the grid lines become smaller the further you move away from the origin. This is due to perspective distortion, which is used to create depth and spatial representation.

Therefore, it is correct that the three arrows (representing the axes of the coordinate system) cannot be parallel to the grid lines. They align with the coordinate axes and appear distorted or tilted in perspective.

If one wants to see parallel arrows, one would need to switch to an orthogonal view, where no perspective distortion is applied. (Chat-GPT). ???

 

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