openscad/dotSCAD
1
0
Fork 0
mirror of https://github.com/JustinSDK/dotSCAD.git synced 2025-08-20 05:21:38 +02:00
Code Issues Releases Wiki Activity

a matrix is enough

Browse Source
This commit is contained in:
Justin Lin
2019-05-01 21:21:42 +08:00
parent db004887d5
commit e1bf720acb
1 changed files with 7 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
src/__private__/__m_shearing.scad
View File

@@ -1,44 +1,15 @@
function __m_shearing_sx(sx) = function __m_shearing(sx, sy, sz) =
let( let(
sx_along_y = sx[0], sx_along_y = sx[0],
sx_along_z = sx[1] sx_along_z = sx[1],
)
[
[1, sx_along_y, sx_along_z, 0],
[0, 1, 0, 0],
[0, 0, 1, 0],
[0, 0, 0, 1]
];
function __m_shearing_sy(sy) =
let(
sy_along_x = sy[0], sy_along_x = sy[0],
sy_along_z = sy[1] sy_along_z = sy[1],
)
[
[1, 0, 0, 0],
[sy_along_x, 1, sy_along_z, 0],
[0, 0, 1, 0],
[0, 0, 0, 1]
];
function __m_shearing_sz(sz) =
let(
sz_along_x = sz[0], sz_along_x = sz[0],
sz_along_y = sz[1] sz_along_y = sz[1]
) )
[ [
[1, 0, 0, 0], [1, sx_along_y, sx_along_z, 0],
[0, 1, 0, 0], [sy_along_x, 1, sy_along_z, 0],
[sz_along_x, sz_along_y, 1, 0], [sz_along_x, sz_along_y, 1, 0],
[0, 0, 0, 1] [0, 0, 0, 1]
]; ];
function __m_shearing(sx, sy, sz) =
__m_multiply(
__m_shearing_sz(sz),
__m_multiply(
__m_shearing_sy(sy),
__m_shearing_sx(sx)
)
);