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NopSCADlib
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Merge branch 'martinbudden-conditional_flip'

This commit is contained in:
Chris Palmer 2020-11-20 12:13:44 +00:00
parent d70ddf5359 68b3dfb098
commit 1dbfafd366
4 changed files with 5 additions and 5 deletions
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4
readme.md
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@ -6057,11 +6057,11 @@ Global constants, functions and modules. This file is used directly or indirectl
| ```circle4n(r, d = undef)``` | Circle with multiple of 4 vertices |
| ```ellipse(xr, yr)``` | Draw an ellipse |
| ```extrude_if(h, center = true)``` | Extrudes 2D object to 3D when ```h``` is nonzero, otherwise leaves it 2D |
| ```hflip()``` | Invert children by doing a 180° flip around the Y axis |
| ```hflip(flip=true)``` | Invert children by doing a 180° flip around the Y axis |
| ```right_triangle(width, height, h, center = true)``` | A right angled triangle with the 90° corner at the origin. 3D when ```h``` is nonzero, otherwise 2D |
| ```semi_circle(r, d = undef)``` | A semi circle in the positive Y domain |
| ```translate_z(z)``` | Shortcut for Z only translations |
| ```vflip()``` | Invert children by doing a 180° flip around the X axis |
| ```vflip(flip=true)``` | Invert children by doing a 180° flip around the X axis |
![global](tests/png/global.png)

2
tests/belts.scad
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@ -39,7 +39,7 @@ module belt_test() {
screw = find_screw(hs_cs_cap, pulley_bore(pulley));
insert = screw_insert(screw);
rotate([0, flip ? 180 : 0, 0]) {
hflip(flip) {
pulley_assembly(pulley);
translate_z(pulley_height(pulley) + pulley_offset(pulley) + screw_head_depth(screw, pulley_bore(pulley)))
screw(screw, 20);

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tests/png/camera_housing.png
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4
utils/core/global.scad
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@ -39,8 +39,8 @@ function r2sides4n(r) = floor((r2sides(r) + 3) / 4) * 4;
function limit(x, min, max) = max(min(x, max), min); //! Force x in range min <= x <= max
module translate_z(z) translate([0, 0, z]) children(); //! Shortcut for Z only translations
module vflip() rotate([180, 0, 0]) children(); //! Invert children by doing a 180&deg; flip around the X axis
module hflip() rotate([0, 180, 0]) children(); //! Invert children by doing a 180&deg; flip around the Y axis
module vflip(flip=true) rotate([flip ? 180 : 0, 0, 0]) children(); //! Invert children by doing a 180&deg; flip around the X axis
module hflip(flip=true) rotate([0, flip ? 180: 0, 0]) children(); //! Invert children by doing a 180&deg; flip around the Y axis
module ellipse(xr, yr) scale([1, yr / xr]) circle4n(xr); //! Draw an ellipse
function slice_str(str, start, end, s ="") = start >= end ? s : slice_str(str, start + 1, end, str(s, str[start])); // Helper for slice()