Custom build of Three.js for SageMath

This package provides a single minified Javascript file three.min.js, which combines standard Three.js with a number of scripts from examples/jsm/.

The file is made available both as package data of a Python package jupyter_threejs_sage (for local access by SageMath) and as a Jupyter notebook extension (to be installed in the Jupyter notebook's Python environment).

Development

The steps to create this build from a stable tagged version of Three.js are

• Perform a shallow clone of the desired version with

git clone --depth=1 --branch r<n> --single-branch https://github.com/mrdoob/three.js.git

• Add the following lines to src/Three.js just after all other exports

export { OrbitControls } from '../examples/jsm/controls/OrbitControls.js';
export { Line2 } from '../examples/jsm/lines/Line2.js';
export { LineGeometry } from '../examples/jsm/lines/LineGeometry.js';
export { LineMaterial } from '../examples/jsm/lines/LineMaterial.js';
export { LineSegments2 } from '../examples/jsm/lines/LineSegments2.js';
export { LineSegmentsGeometry } from '../examples/jsm/lines/LineSegmentsGeometry.js';

• Move into the library directory with cd three.js

• Configure the library with npm install

• Build the library with npm run build

  The minified file three.min.js will be located in the build directory.

• Copy the minified file to the build directory here.

• Create a new directory for the new version in jupyter_threejs_sage/static/ and copy the minified file there. (Do not remove old versions that needed by any released versions of Sage.)

• The final step before releasing is to update the version file.

As noted in this issue, Three.js releases can be modified for up to a week after the initial release. This build process should wait for this period of time to ensure future consistency of building.