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Geom cleanup - what do you use? [message #60241]

Wed, 25 October 2023 12:50

mirek
Messages: 13986
Registered: November 2005

Ultimate Member

Geom package is one of last instances of "old code that needs cleaning / moving to upphub".

There is some very useful code in there, some code that needs polishing and some code that is perhaps too specialised and/or obsolete.

So I have an intention to split Geom, move part to Core (3D geometry stuff mostly, also some geomtric algos like line distance), rest to UppHub.

Before I do, I wanted to ask general community: Which part of Geom do you use?

Mirek

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Re: Geom cleanup - what do you use? [message #60243 is a reply to message #60241]

Wed, 25 October 2023 13:57

koldo
Messages: 3372
Registered: August 2008

Senior Veteran

Hi Mirek

In my case I use geometry.h (to see if a point is inside a polygon) and delaunay.h (to get a triangular mesh from a set of points).

Best regards
Iñaki

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Re: Geom cleanup - what do you use? [message #60265 is a reply to message #60241]

Sat, 28 October 2023 06:56

deep
Messages: 263
Registered: July 2011
Location: Bangalore

Experienced Member

Hi Mirek,

I am using it for various line-line line-arc intersection point calculations.

use geometry.h

Warm Regards

Deepak

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Re: Geom cleanup - what do you use? [message #60272 is a reply to message #60241]

Mon, 30 October 2023 07:59

Tom1
Messages: 1217
Registered: March 2007

Senior Contributor

Hi Mirek,

I'm using Matrixf and functions related to that.

Best regards,

Tom

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Re: Geom cleanup - what do you use? [message #60275 is a reply to message #60241]

Mon, 30 October 2023 13:31

Oblivion
Messages: 1095
Registered: August 2007

Senior Contributor

Hi Mirek,

Quote:

So I have an intention to split Geom, move part to Core (3D geometry stuff mostly, also some geomtric algos like line distance), rest to UppHub.

Incidentally, I had already moved and refactored/cleaned up most of the 3D code of geom package into Point3D, Xform3D (inspired by and similar to the Painter's Xform2D) structures and to their related functions (as part of a very lightweight software-based 3D renderer called Sculptor package, which I needed at the time).

I can send in a pull request next weekend, if you'd like to review. (to speed up)

Best regards,
Oblivion

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Mon, 30 October 2023 13:33]

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Re: Geom cleanup - what do you use? [message #60637 is a reply to message #60241]

Mon, 17 June 2024 10:23

Oblivion
Messages: 1095
Registered: August 2007

Senior Contributor

Hi

As I wrote in my previous message, there is a light-weight XForm3D package I had written some time ago. You can find it attached.

1) It is a single header file.
2) It contains Point3D, Point4D, Matrix3D and Matrix4D classes (API is very similar to XForm2D).
3) These classes are aliases for templates that accept floating point numbers. So it allows for both single and double precision points (classes are templated)
4) It has an IsEqual() function for fuzzy comparing of matrices.

If you find it useful enough, feel free to review and/or adopt it.

P.s. There is also a simple demo app, rendering the famous 3D teacup model, using Upp::Painter with this XForm3D. I will also upload that (but first I need to clean-up its code).

Best regards,
Oblivion

Attachment: Xform3D.h
(Size: 35.35KB, Downloaded 2 times)

Github page: https://github.com/ismail-yilmaz
upp-components: https://github.com/ismail-yilmaz/upp-components
Bobcat the terminal emulator: https://github.com/ismail-yilmaz/Bobcat

[Updated on: Mon, 17 June 2024 10:23]

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