mirror of
https://github.com/JustinSDK/dotSCAD.git
synced 2025-08-01 12:30:33 +02:00
add rail_extruded_sections
This commit is contained in:
Justin Lin
@@ -67,7 +67,7 @@ You can use any point as the first point of the edge path. Just remember that yo
|
||||
use <path_scaling_sections.scad>;
|
||||
use <sweep.scad>;
|
||||
use <bezier_curve.scad>;
|
||||
use <rotate_p.scad>;
|
||||
use <ptf/ptf_rotate.scad>;
|
||||
|
||||
taiwan = shape_taiwan(100);
|
||||
fst_pt = [13, 0, 0];
|
||||
@@ -91,7 +91,7 @@ You can use any point as the first point of the edge path. Just remember that yo
|
||||
for(i = [0:leng - 1])
|
||||
[
|
||||
for(p = sections[i])
|
||||
rotate_p(p, twist_step * i)
|
||||
ptf_rotate(p, twist_step * i)
|
||||
]
|
||||
];
|
||||
|
||||
@@ -103,7 +103,7 @@ You can use any point as the first point of the edge path. Just remember that yo
|
||||
use <shape_taiwan.scad>;
|
||||
use <path_scaling_sections.scad>;
|
||||
use <sweep.scad>;
|
||||
use <rotate_p.scad>;
|
||||
use <ptf/ptf_rotate.scad>;
|
||||
|
||||
taiwan = shape_taiwan(100);
|
||||
|
||||
@@ -115,12 +115,12 @@ You can use any point as the first point of the edge path. Just remember that yo
|
||||
a = atan2(fst_pt[1], fst_pt[0]);
|
||||
edge_path = [
|
||||
fst_pt,
|
||||
fst_pt + rotate_p([0, 0, 10], a),
|
||||
fst_pt + rotate_p([10, 0, 20], a),
|
||||
fst_pt + rotate_p([8, 0, 30], a),
|
||||
fst_pt + rotate_p([10, 0, 40], a),
|
||||
fst_pt + rotate_p([0, 0, 50], a),
|
||||
fst_pt + rotate_p([0, 0, 60], a)
|
||||
fst_pt + ptf_rotate([0, 0, 10], a),
|
||||
fst_pt + ptf_rotate([10, 0, 20], a),
|
||||
fst_pt + ptf_rotate([8, 0, 30], a),
|
||||
fst_pt + ptf_rotate([10, 0, 40], a),
|
||||
fst_pt + ptf_rotate([0, 0, 50], a),
|
||||
fst_pt + ptf_rotate([0, 0, 60], a)
|
||||
];
|
||||
|
||||
#hull_polyline3d(edge_path);
|
||||
|
||||
127
docs/lib3x-rail_extruded_sections.md
Normal file
127
docs/lib3x-rail_extruded_sections.md
Normal file
@@ -0,0 +1,127 @@
|
||||
# rail_extruded_sections
|
||||
|
||||
Given a rail with the first point at the outline of a shape. This function uses the rail to extrude the shape and returns all sections in the reversed order of the rail. Combined with the `sweep` module, you can create rail extrusion.
|
||||
|
||||
In order to control extrusion easily, I suggest using `[x, 0, 0]` as the first point and keeping y = 0 while building the rail.
|
||||
|
||||
**Since:** 3.2
|
||||
|
||||
## Parameters
|
||||
|
||||
- `shape_pts` : A list of points represent a shape.
|
||||
- `rail` : A list of points represent the edge path.
|
||||
|
||||
## Examples
|
||||
|
||||
use <hull_polyline3d.scad>;
|
||||
use <shape_taiwan.scad>;
|
||||
use <rail_extruded_sections.scad>;
|
||||
use <sweep.scad>;
|
||||
|
||||
taiwan = shape_taiwan(100);
|
||||
fst_pt = [13, 0, 0];
|
||||
|
||||
rail = [
|
||||
fst_pt,
|
||||
fst_pt + [0, 0, 10],
|
||||
fst_pt + [10, 0, 20],
|
||||
fst_pt + [8, 0, 30],
|
||||
fst_pt + [12, 0, 40],
|
||||
fst_pt + [0, 0, 50],
|
||||
fst_pt + [0, 0, 60]
|
||||
];
|
||||
|
||||
#hull_polyline3d(rail);
|
||||
sweep(rail_extruded_sections(taiwan, rail));
|
||||
|
||||
|
||||
|
||||
use <hull_polyline3d.scad>;
|
||||
use <shape_taiwan.scad>;
|
||||
use <rail_extruded_sections.scad>;
|
||||
use <sweep.scad>;
|
||||
use <bezier_curve.scad>;
|
||||
|
||||
|
||||
taiwan = shape_taiwan(100);
|
||||
fst_pt = [13, 0, 0];
|
||||
|
||||
rail = bezier_curve(0.05, [
|
||||
fst_pt,
|
||||
fst_pt + [0, 0, 10],
|
||||
fst_pt + [10, 0, 20],
|
||||
fst_pt + [8, 0, 30],
|
||||
fst_pt + [12, 0, 40],
|
||||
fst_pt + [0, 0, 50],
|
||||
fst_pt + [0, 0, 60]
|
||||
]);
|
||||
|
||||
#hull_polyline3d(rail);
|
||||
sweep(rail_extruded_sections(taiwan, rail));
|
||||
|
||||
|
||||
|
||||
use <shape_taiwan.scad>;
|
||||
use <rail_extruded_sections.scad>;
|
||||
use <sweep.scad>;
|
||||
use <bezier_curve.scad>;
|
||||
use <ptf/ptf_rotate.scad>;
|
||||
|
||||
taiwan = shape_taiwan(100);
|
||||
fst_pt = [13, 0, 0];
|
||||
|
||||
rail = bezier_curve(0.05, [
|
||||
fst_pt,
|
||||
fst_pt + [0, 0, 10],
|
||||
fst_pt + [10, 0, 20],
|
||||
fst_pt + [8, 0, 30],
|
||||
fst_pt + [12, 0, 40],
|
||||
fst_pt + [0, 0, 50],
|
||||
fst_pt + [0, 0, 60]
|
||||
]);
|
||||
|
||||
leng = len(rail);
|
||||
twist = -90;
|
||||
twist_step = twist / leng;
|
||||
sections = rail_extruded_sections(taiwan, rail);
|
||||
|
||||
rotated_sections = [
|
||||
for(i = [0:leng - 1])
|
||||
[
|
||||
for(p = sections[i])
|
||||
ptf_rotate(p, twist_step * i)
|
||||
]
|
||||
];
|
||||
|
||||
sweep(rotated_sections);
|
||||
|
||||
|
||||
|
||||
use <hull_polyline3d.scad>;
|
||||
use <shape_taiwan.scad>;
|
||||
use <rail_extruded_sections.scad>;
|
||||
use <sweep.scad>;
|
||||
use <ptf/ptf_rotate.scad>;
|
||||
|
||||
taiwan = shape_taiwan(100);
|
||||
|
||||
/*
|
||||
You can use any point as the first point of the edge path.
|
||||
Just remember that your edge path radiates from the origin.
|
||||
*/
|
||||
fst_pt = [taiwan[0][0], taiwan[0][1], 0];//[13, 0, 0];
|
||||
a = atan2(fst_pt[1], fst_pt[0]);
|
||||
rail = [
|
||||
fst_pt,
|
||||
fst_pt + ptf_rotate([0, 0, 10], a),
|
||||
fst_pt + ptf_rotate([10, 0, 20], a),
|
||||
fst_pt + ptf_rotate([8, 0, 30], a),
|
||||
fst_pt + ptf_rotate([10, 0, 40], a),
|
||||
fst_pt + ptf_rotate([0, 0, 50], a),
|
||||
fst_pt + ptf_rotate([0, 0, 60], a)
|
||||
];
|
||||
|
||||
#hull_polyline3d(rail);
|
||||
sweep(rail_extruded_sections(taiwan, rail));
|
||||
|
||||
|
||||
Reference in New Issue
Block a user