CascadeStudio
scad-clj
CascadeStudio | scad-clj | |
---|---|---|
18 | 5 | |
959 | 315 | |
- | - | |
0.0 | 10.0 | |
10 months ago | about 4 years ago | |
JavaScript | Clojure | |
MIT License | Eclipse Public License 1.0 |
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CascadeStudio
- Cascade Studio
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Gimp 2.99.18 Released: The Last Development Preview Before 3.0
OCCT is definitely difficult.
I am almost as far as you can get from an expert but:
For example the TNP issue derives from OCCT (or something in the stack close to it, I am not exactly sure) not really handling face naming at all.
So if you want to avoid topological naming issues (which is a hard problem in CAD), you apparently have to do some work to track before and after and reconstruct your face naming.
https://wiki.freecad.org/Topological_naming_problem
https://forum.freecad.org/viewtopic.php?t=27278
Then there are various fairly entrenched issues to do with filleting and chamfering. Basically, both these operations will fail (in FreeCAD at least, but it's OCCT at "fault") if a chamfer or fillet would completely consume an existing edge. (It also sometimes creates impossible objects when filleting, or used to).
Booleans can be slow.
And more generally, it seems if you track the FreeCAD project that OCCT can be inscrutable when things fail; error messages aren't the greatest etc.
The flip side of OpenCascade is that it seems to be highly portable and has for example been compiled to JS with Emscripten for this astonishing thing:
https://zalo.github.io/CascadeStudio/
It's a monumental open source project, for sure, and it's definitely not nothing that we have an open source CAD kernel; these are projects that perhaps have to extend beyond the working life of an individual developer if they are to be stable. And there are loads of projects built around it.
- Better OpenSCAD?
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Show HN: Dslcad a programming language and interpreter for building 3D models
If you haven't seen it you may want to check out https://github.com/zalo/CascadeStudio
From what I see, it is exposing the OpenCascade base commands directly, versus your completely new DSL, but you might be interested in a way to implement your DSL on top of such an interface such as this which takes out a lot of the extra work of having a rendering interface, exports, etc, maybe.
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Ask HN: If money was no object what software would you create?
It's nowhere near ready for primetime, but you should take a look at CascadeStudio (https://github.com/zalo/CascadeStudio)
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Fornjot – The world needs another CAD program
FreeCAD is GUI-based though, not code-first like Fornjot. A better comparison would be CadQuery (https://cadquery.readthedocs.io/en/latest/intro.html) or Cascade Studio (https://zalo.github.io/CascadeStudio/), both of which are code-first and based on the same CAD kernel as FreeCAD.
- Fornjot: A next-generation Code-CAD application
- CascadeStudio: A Full Live-Scripted CAD Kernel in the Browser
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Support for Javascript?
It is an actual example from CascadeStudio, but I haven't looked into it enough to know how what actually happens under the hood, but I assume the following:
- Playing with Mystery Curves (inspired by the whirlpool vase posted a couple days ago)
scad-clj
- Better OpenSCAD?
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The Orb: a parametric trackball with BTU mounted ball and keyboard switches for buttons
As for Gamma: I wasn't really aware of CadQuery, but I did use OpenSCAD extensively, when designing my Lagrange keyboard. Gamma started as a way to address some aspects I didn't find quite satisfactory (as, to be fair, I can't say I had any real problems). Also to be fair, I used OpenSCAD through a frontend(scad-clj) translating Clojure code to its native language and some of the problems may have been due to that, but that is also one of the issues I had with OpenSCAD: why have to learn a new language when there are existing embedabble scripting languages, you might now already, of if not, which you might use elsewhere and which, having years of development, will likely be better?
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GhostSCAD: Marrying OpenSCAD and Golang
I wonder how many OpenSCAD wrappers now exist? I know of scad-clj [0], openpyscad [1], and solidpython [2].
I particularly like scad-clj, because of `lein auto generate`. It watches source files, and regenerates the OpenSCAD files automatically, which OpenSCAD then also picks up. Although I'm not well versed in Clojure, and find debugging Clojure tricky, the workflow is just so good.
[0] https://github.com/farrellm/scad-clj
[1] https://github.com/taxpon/openpyscad
[2] https://github.com/SolidCode/SolidPython
- I must say I had been kinda ambivalent about OpenSCAD until now, but I discovered SolidPython and am absolutely delighted. This is what I had hoped OpenSCAD would be.
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Code CAD – Use code to create CAD models
There is a small clojure project that transpiles clojure to openscad, (if I remember correctly...)
https://github.com/farrellm/scad-clj
Demonstrated and talked about in this clip:
What are some alternatives?
cadquery - A python parametric CAD scripting framework based on OCCT
openpyscad - Python library to generate OpenSCAD source code. This library provides intuitive interface when you handle 3D data.
psml - Python library for OpenSCAD
OpenJSCAD.org - JSCAD is an open source set of modular, browser and command line tools for creating parametric 2D and 3D designs with JavaScript code. It provides a quick, precise and reproducible method for generating 3D models, and is especially useful for 3D printing applications.
oce - OpenCASCADE Community Edition (OCE): a community driven fork of the Open CASCADE library.
Kind - A next-gen functional language [Moved to: https://github.com/Kindelia/Kind2]
antimony - CAD from a parallel universe
truck - Truck is a Rust CAD Kernel.
VisualScriptCAD - A simple visual scripting based 3D modeling application.
curated-code-cad - A list of the various code-cad projects out there.
fswatch - A cross-platform file change monitor with multiple backends: Apple OS X File System Events, *BSD kqueue, Solaris/Illumos File Events Notification, Linux inotify, Microsoft Windows and a stat()-based backend.