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refactoed path_extend to shape_path_extend

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Justin Lin
2017-05-24 11:41:14 +08:00
parent 6478d0160e
commit 6e0dac3814
5 changed files with 100 additions and 85 deletions
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docs/images/lib-path_extend-1.JPG → docs/images/lib-shape_path_extend-1.JPG
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docs/lib-path_extend.md → docs/lib-shape_path_extend.md
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@@ -1,10 +1,10 @@
# path_extend
# shape_path_extend
It extends a 2D stroke along a path. This module is suitable for a path created by a continuous function.
It extends a 2D stroke along a path to create a 2D shape. This module is suitable for a path created by a continuous function. The returned points can be used with xxx_extrude modules of dotSCAD. The shape points can be also used with the built-in polygon module.
It depends on the rotate_p function and the polytransversals module. Remember to include "rotate_p.scad" and "polytransversals.scad".
When using this module, you should use points to represent the 2D stroke.
When using this module, you should use points to represent the 2D stroke.
It depends on the `rotate_p` function. Remember to include "rotate_p.scad" and "polytransversals.scad".
## Parameters
@@ -16,8 +16,7 @@ When using this module, you should use points to represent the 2D stroke.
## Examples
include <rotate_p.scad>;
include <polytransversals.scad>;
include <path_extend.scad>;
include <shape_path_extend.scad>;
include <circle_path.scad>;
include <archimedean_spiral.scad>;
@@ -25,7 +24,10 @@ When using this module, you should use points to represent the 2D stroke.
stroke1 = [[-5, 2.5], [-2.5, 0], [0, 2.5], [2.5, 0], [5, 2.5]];
path_pts1 = circle_path(50, 60);
path_extend(stroke1, path_pts1);
polygon(
shape_path_extend(stroke1, path_pts1)
);
stroke2 = [[-4, 0], [0, 4], [4, 0]];
pts_angles = archimedean_spiral(
@@ -36,9 +38,11 @@ When using this module, you should use points to represent the 2D stroke.
);
translate([120, 0, 0])
path_extend(
stroke2,
[for(pa = pts_angles) pa[0]]
);
polygon(
shape_path_extend(
stroke2,
[for(pa = pts_angles) pa[0]]
)
);
![path_extend](images/lib-path_extend-1.JPG)
![path_extend](images/lib-shape_path_extend-1.JPG)