Browser use most of system ressources when rendering a script with rotate() method and an array of angles

[scls19fr]

Expected Behavior

Render correctly without crashing

Actual Behavior

Browser uses most of system ressources and seems to crash

Steps to Reproduce the Problem

I'm new to programmatic CAD (OpenSCAD, OpenJSCAD, ImplicitCAD...). I was trying to convert manually OpenSCAD code from https://www.thingiverse.com/thing:155001 to OpenJSCAD and I put following code on https://openjscad.org

function main() {
    enclosure_inner_length = 60;
    enclosure_inner_width = 40;
    enclosure_inner_depth = 30;

    enclosure_thickness = 2;

    cover_thickness = 3;

    p = lid2(enclosure_inner_length,enclosure_inner_width,enclosure_inner_depth,enclosure_thickness,enclosure_thickness/2+0.10,cover_thickness);

    return p;
}

function lid2(in_x, in_y, in_z, shell, top_lip, top_thickness) {
    sx = in_x/2 - 4;
    sy = in_y/2 - 4;
    sh = shell + in_z - 12;
    nh = shell + in_z - 4;

    p1 = union(
        cylinder(r=1.5, h = 15, $fn=32).translate([sx , sy, sh]),
        cylinder(r=1.5, h = 15, $fn=32).translate([sx , -sy, sh ]),
        cylinder(r=1.5, h = 15, $fn=32).translate([-sx , sy, sh ]),
        cylinder(r=1.5, h = 15, $fn=32).translate([-sx , -sy, sh ])
    );

    /* 
    // Work
    p2 = cube ([5.75, 10, 2.8])
        .translate([-5.75/2, -5.6/2, -0.7]);
    */

    // Doesn't work
    p2 = cube ([5.75, 10, 2.8])
        .translate([-5.75/2, -5.6/2, -0.7])
        .rotate([0,0,-45]);

    return union(p1, p2);

}

Specifications

• Version: https://openjscad.org website (1.6.0)
• Platform: Ubuntu 17.10
• Environment: Chromium Version 64.0.3282.140 (Build officiel) Built on Ubuntu , running on Ubuntu 17.10 (64 bits)

[z3dev]

@scls19fr Thanks for the information.

The issue is caused by the obj.rotate([0,0,-45] That version of the rotate() function does not accept an array of angles. Please use obj.rotateZ(-45)

FYI, we are working a new version of the API which resolves the differences in the function names, parameters, etc. But that probably won't be available for a few more releases.

[z3dev]

No reply. Closing.