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Code Issues Releases Wiki Activity

prepared for supporting round-robin

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Justin Lin
2017-05-03 08:28:22 +08:00
parent 376e2da117
commit b29970a3c0
1 changed files with 19 additions and 18 deletions
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37
src/path_extrude.scad
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@@ -17,6 +17,17 @@ module path_extrude(shape_pts, path_pts, triangles = "RADIAL", twist = 0, scale
s_pts = len(shape_pts[0]) == 3 ? shape_pts : [for(p = shape_pts) [p[0], p[1], 0]]; s_pts = len(shape_pts[0]) == 3 ? shape_pts : [for(p = shape_pts) [p[0], p[1], 0]];
len_path_pts = len(path_pts);
len_path_pts_minus_one = len_path_pts - 1;
scale_step_vt = len(scale) == 2 ?
[(scale[0] - 1) / len_path_pts_minus_one, (scale[1] - 1) / len_path_pts_minus_one] :
[(scale - 1) / len_path_pts_minus_one, (scale - 1) / len_path_pts_minus_one];
scale_step_x = scale_step_vt[0];
scale_step_y = scale_step_vt[1];
twist_step = twist / len_path_pts_minus_one;
function first_section() = function first_section() =
let( let(
p1 = path_pts[0], p1 = path_pts[0],
@@ -32,17 +43,6 @@ module path_extrude(shape_pts, path_pts, triangles = "RADIAL", twist = 0, scale
rotate_p(p, [0, ay, az]) + p1 rotate_p(p, [0, ay, az]) + p1
]; ];
len_path_pts = len(path_pts);
len_path_pts_minus_one = len_path_pts - 1;
scale_step_vt = len(scale) == 2 ?
[(scale[0] - 1) / len_path_pts_minus_one, (scale[1] - 1) / len_path_pts_minus_one] :
[(scale - 1) / len_path_pts_minus_one, (scale - 1) / len_path_pts_minus_one];
scale_step_x = scale_step_vt[0];
scale_step_y = scale_step_vt[1];
twist_step = twist / len_path_pts_minus_one;
function section(p1, p2, i) = function section(p1, p2, i) =
let( let(
dx = p2[0] - p1[0], dx = p2[0] - p1[0],
@@ -61,9 +61,6 @@ module path_extrude(shape_pts, path_pts, triangles = "RADIAL", twist = 0, scale
) + p1 ) + p1
]; ];
function path_extrude_inner(index) = function path_extrude_inner(index) =
index == len_path_pts ? [] : index == len_path_pts ? [] :
concat( concat(
@@ -71,8 +68,12 @@ module path_extrude(shape_pts, path_pts, triangles = "RADIAL", twist = 0, scale
path_extrude_inner(index + 1) path_extrude_inner(index + 1)
); );
polysections( if(path_pts[0] == path_pts[len_path_pts_minus_one]) {
concat([first_section()], path_extrude_inner(1)),
triangles = triangles } else {
); polysections(
concat([first_section()], path_extrude_inner(1)),
triangles = triangles
);
}
} }