openscad-js

Javascript/typescript based code generator for openscad.

usage

import fs from "fs";
import Scad from "@steeringwaves/openscad-js";

const scad = new Scad.Module({
	fs: fs // Only required when calling toScadFile()
});

const origin = scad.modules.translate([0, 0, 0]);

scad.specials.$fn = 200;
scad.specials.$vpr = [0, 0, 0];

const default_fn = scad.addVariable("default_fn", 200);

const sphere_diameter = scad.addVariable("sphere_diameter", 5, { section: "Options", comment: "Diameter of the sphere" });
const cube1 = scad.addVariable<Scad.IVector3>("cube1", [1, 2, 3], {
	section: "Options",
	comment: "Dimensions of first cube"
});
const cube2 = scad.addVariable<Scad.IVector3>("cube2", [5, 5, 5], {
	section: "Options",
	comment: "Dimensions of second cube"
});

const sphere = origin(scad.modules.sphere({ r: sphere_diameter, $fn: 200 }));

scad.add(sphere);
scad.add(scad.modules.translate([10, 0, 0])(sphere));
scad.add(scad.modules.translate([-10, 0, 0])(scad.modules.sphere({ r: 5, $fn: 8 })));
scad.add(scad.modules.translate([20, 0, 0])(scad.modules.cube(cube1)));
scad.add(scad.modules.translate([20, 10, 0])(scad.modules.cube(cube2)));
scad.add(scad.modules.translate([20, 40, 0])(scad.modules.resize(cube2)(scad.modules.cube(cube1))));
scad.add(scad.modules.translate([20, -10, 0])(scad.modules.cube(5)));
scad.add(scad.modules.translate([40, 0, 0])(scad.modules.cylinder({ r1: 3, r2: 5, h: 25, center: true })));
scad.add(scad.modules.translate([40, 20, 0])(scad.modules.cylinder({ r: 5, h: 25 })));

console.log(scad.toString());

scad.toScadFile(__filename);

const Scad = require("@steeringwaves/openscad-js");

const scad = new Scad.Module({});

const origin = scad.modules.translate([0, 0, 0]);

scad.specials.$fn = 200;
scad.specials.$vpr = [0, 0, 0];

const sphere_diameter = scad.addVariable("sphere_diameter", 5, { section: "Options", comment: "Diameter of the sphere" });
const sphere = origin(scad.modules.sphere({ r: sphere_diameter }));

scad.add(sphere);

console.log(scad.toString());

unsupported methods

All the known methods of writing this document are supported with types in this library under the modules object. However in order to future proof a bit we also support a special object named any which allows you to call any new/unsupported methods anyways.

// modules.color is a supported method and has type checking
scad.modules.color([255, 0, 0])(scad.modules.sphere({ r: 5 }));

// any.color is identical to the above except that it has no type checking
scad.any.color([255, 0, 0])(scad.modules.sphere({ r: 5 }));

// any.dosomethingcool allows this module to support newer versions or custom modifications
scad.any.dosomethingcool(100)(scad.modules.sphere({ r: 5 }));

available functions under the modules object

  union
  difference
  intersection
  translate
  mirror
  rotate
  color
  scale
  resize
  multimatrix
  offset
  fill
  hull
  minkowski
  sphere
  cube
  cylinder
  polyhedron
  linear_extrude
  rotate_extrude
  square
  circle
  polygon
  text
  projection

Special variables available under the specials object

  $fa
  $fs
  $fn
  $t
  $vpr
  $vpt
  $vpd
  $vpf
  $children
  $preview

custom variables

Customizable variables are support by calling the addVariable method which will return a special type that can be reference in your code. NOTE: This is a bit of a hack because if the user changes this value from within openscad our javascript has already executed and will be unable to react to changes that aren't coded in already.

const sphere_diameter = scad.addVariable("sphere_diameter", 5, { section: "Options", comment: "Diameter of the sphere" });
const sphere = origin(scad.modules.sphere({ r: sphere_diameter }));

development

yarn install
yarn run format && yarn run ci