This release has been yanked by its maintainers, and will be ignored by installers, except when explicitly specified.
Consider using release 1.24.0 instead.
Reason given by maintainers: broke use<>
openscad_cpp_evaluator
A C++20 port of openscad_evaluator (Python): an AST-walking
geometry engine that takes a parsed OpenSCAD AST and produces Manifold
CSG geometry, ready to export to STL/OBJ/OFF/3MF or hand off to a renderer.
Built on:
openscad_cpp_parser(git submodule) for lexing/parsing/AST/scope resolution.- Manifold v3.5.2 for the actual CSG boolean/mesh engine.
- Boost.Polygon for
roof()'s Voronoi-diagram construction. nothings/stb(header-only) forsurface()'s image loader and the built-in font provider's TrueType parsing/rasterization.
All fetched automatically via CMake FetchContent — no manual dependency installation beyond the
toolchain below.
Status
All planned phases (0–9) are complete: the full primitive/transform/boolean/modifier/control-flow
language surface, every builtin function, STL/OBJ/OFF/3MF import and export, hull()/minkowski()/
linear_extrude()/rotate_extrude()/roof()/offset()/surface()/DXF & SVG import/text(), an
opt-in content-hash geometry cache, per-call-site profiling, and a gdb-style --debug REPL. See
CLAUDE.md for the full phase-by-phase history and architecture notes.
Build
Requires:
- CMake ≥ 3.24
- A C++20 compiler (Clang, GCC, or MSVC — all three are covered by CI)
- Bison ≥ 3.8 and Flex
- macOS:
brew install bison flex(the system bison is too old; CMake auto-detects Homebrew's) - Linux:
sudo apt-get install bison flex - Windows: MSYS2's
bison/flex(pacman -S bison flex) — GitHub'swindows-latestrunner ships MSYS2 pre-installed atC:\msys64; CMake auto-detects it there too
- macOS:
GoogleTest and every other C++ dependency are fetched automatically.
git clone --recurse-submodules <this-repo>
cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build -j
(Omitting -DCMAKE_BUILD_TYPE=Release builds unoptimized — pass it explicitly for anything
performance-sensitive.)
On Windows, CMake defaults to the multi-config Visual Studio generator, which ignores
CMAKE_BUILD_TYPE; pass --config Release to cmake --build (and -C Release to ctest)
instead.
Test
ctest --test-dir build --output-on-failure
Run a single binary or filter:
build/tests/oscad_eval_tests
build/tests/oscad_eval_tests --gtest_filter='FormatNumber.*'
The suite runs twice in CI — once with the bytecode VM on (the default) and once with it off
(OSCAD_BYTECODE_VM=0) — so a regression in either the compiled or interpreted expression-eval
path is caught.
CLI
build/tools/cli/openscad-cpp-evaluator <input.scad> -o <output.{stl,obj,off,3mf}> [--format stl|obj|off|3mf] [--debug]
The output format is inferred from -o's extension, or set explicitly with --format.
--debug drops into a gdb-style REPL (break/run/continue/step/next/finish/print/
backtrace/set/list/quit/help) before and during evaluation.
build/tools/cli/openscad-cpp-evaluator model.scad -o model.stl
Architecture
See CLAUDE.md for the full per-file architecture map, the Python-reference cross-check history,
and the rationale behind every non-obvious design choice (the two-pass resolve/generate CSG
pipeline, the FontProvider injection seam, the closure-detection rule, etc.).
CI
GitHub Actions builds and tests on Linux, macOS, and Windows on every push/PR (.github/workflows/ci.yml).
1 maintainer
Release files for openscad-cpp-evaluator 1.4.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| openscad_cpp_evaluator-1.4.0.tar.gz | 971.8 kB | Details |
Built distributions (wheels)
| File | Reset | |||
|---|---|---|---|---|
| openscad_cpp_evaluator-1.4.0-cp312-abi3-win_arm64.whl | CPython 3.12 | abi3 | Windows ARM64 | Details |
| openscad_cpp_evaluator-1.4.0-cp312-abi3-win_amd64.whl | CPython 3.12 | abi3 | Windows x86-64 | Details |
| openscad_cpp_evaluator-1.4.0-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl | CPython 3.12 | abi3 | Linux glibc 2.27+ x86-64, Linux glibc 2.28+ x86-64 | Details |
| openscad_cpp_evaluator-1.4.0-cp312-abi3-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl | CPython 3.12 | abi3 | Linux glibc 2.28+ ARM64, Linux glibc 2.27+ ARM64 | Details |
| openscad_cpp_evaluator-1.4.0-cp312-abi3-macosx_13_0_x86_64.whl | CPython 3.12 | abi3 | macOS 13.0+ x86-64 | Details |
| openscad_cpp_evaluator-1.4.0-cp312-abi3-macosx_13_0_arm64.whl | CPython 3.12 | abi3 | macOS 13.0+ ARM64 | Details |
Total release size: 43.3 MB
Release files / openscad_cpp_evaluator-1.4.0.tar.gz
| Download URL | openscad_cpp_evaluator-1.4.0.tar.gz |
|---|---|
| Size | 971.8 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
f82eb1d14dd601e08352410d4ac1f513b8c173d632fb15b45f89905cba69f85d
|
|
BLAKE2b-256 checksum How to use checksums |
bfce6886d8122f29ba8a10d8fe46d2143f4361384c66472407a2fdd0f674dfd1
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Release files / openscad_cpp_evaluator-1.4.0-cp312-abi3-win_arm64.whl
| Download URL | openscad_cpp_evaluator-1.4.0-cp312-abi3-win_arm64.whl |
|---|---|
| Size | 9.7 MB |
| Tags | CPython 3.12 Windows ARM64 abi3 |
|
SHA-256 checksum How to use checksums |
f181c804863fa2bad6e171aba7a41d3c99f78e6fc8406e88e64cf1447ff25b13
|
|
BLAKE2b-256 checksum How to use checksums |
3cf201bdb86282b3508cd67e087db4a255ea9ee67adcffc3837ed311cce9e6e4
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Release files / openscad_cpp_evaluator-1.4.0-cp312-abi3-win_amd64.whl
| Download URL | openscad_cpp_evaluator-1.4.0-cp312-abi3-win_amd64.whl |
|---|---|
| Size | 10.1 MB |
| Tags | CPython 3.12 Windows x86-64 abi3 |
|
SHA-256 checksum How to use checksums |
0cb99446d9308d98291843e9e89364e17921d473aee9364206b2d3f299a7ae3a
|
|
BLAKE2b-256 checksum How to use checksums |
dfda2966af0c3bd0e77a9e70196e42f9bcd06410fdcd1575833d252b3a38bcb3
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Release files / openscad_cpp_evaluator-1.4.0-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl
| Download URL | openscad_cpp_evaluator-1.4.0-cp312-abi3-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl |
|---|---|
| Size | 6.5 MB |
| Tags | CPython 3.12 Linux glibc 2.27+ x86-64 Linux glibc 2.28+ x86-64 abi3 |
|
SHA-256 checksum How to use checksums |
7993957f50bc3b9789b64ea5bb49e4997fa29c5f8bffbc462141421db0f516c3
|
|
BLAKE2b-256 checksum How to use checksums |
6aa3cbf089fc2aea17dbccd5550a966d80b9a16d488e1ed99e7780c1abc05ea1
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Release files / openscad_cpp_evaluator-1.4.0-cp312-abi3-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl
| Download URL | openscad_cpp_evaluator-1.4.0-cp312-abi3-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl |
|---|---|
| Size | 6.1 MB |
| Tags | CPython 3.12 Linux glibc 2.27+ ARM64 Linux glibc 2.28+ ARM64 abi3 |
|
SHA-256 checksum How to use checksums |
a4cd55a5e976ae07336d0aa2242a0643c8958c37e3f02dd647ed6bf371684ea7
|
|
BLAKE2b-256 checksum How to use checksums |
1db4cccbb7f1b09160a06191f644d8c942011e710cd591a5fd9d9527b0ed4188
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Release files / openscad_cpp_evaluator-1.4.0-cp312-abi3-macosx_13_0_x86_64.whl
| Download URL | openscad_cpp_evaluator-1.4.0-cp312-abi3-macosx_13_0_x86_64.whl |
|---|---|
| Size | 5.1 MB |
| Tags | CPython 3.12 abi3 macOS 13.0+ x86-64 |
|
SHA-256 checksum How to use checksums |
dee06ab48c68f3a2b7f30becd29ba6443f0c9539782fb51f1e89750a256f65f3
|
|
BLAKE2b-256 checksum How to use checksums |
275a3c1126440f14e1c3ab23bd5713962c373819c78132e61cba69876ad8ded9
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Release files / openscad_cpp_evaluator-1.4.0-cp312-abi3-macosx_13_0_arm64.whl
| Download URL | openscad_cpp_evaluator-1.4.0-cp312-abi3-macosx_13_0_arm64.whl |
|---|---|
| Size | 4.8 MB |
| Tags | CPython 3.12 abi3 macOS 13.0+ ARM64 |
|
SHA-256 checksum How to use checksums |
0476033cf0cb482dcda406808ff6cd8301ee63ef0456f1662b28833e21537330
|
|
BLAKE2b-256 checksum How to use checksums |
8d0848275d2ebe777388ed9401b12f5f6aebc2fc22220007a2f68a0bcebed039
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
