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use polyline_join

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Justin Lin
2021-12-04 10:57:29 +08:00
parent 5c8c0b8139
commit 91d5c40336
33 changed files with 139 additions and 174 deletions
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11
docs/lib3x-bezier_curve.md
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@@ -1,6 +1,6 @@
# bezier_curve
Given a set of control points, the `bezier_curve` function returns points of the Bézier path. Combined with the `polyline`, `polyline3d` or `hull_polyline3d` module defined in my library, you can create a Bézier curve.
Given a set of control points, the `bezier_curve` function returns points of the Bézier path.
## Parameters
@@ -9,13 +9,13 @@ Given a set of control points, the `bezier_curve` function returns points of the
## Examples
If you have four control points and combine with the `hull_polyline3d` module:
If you have four control points:
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <bezier_curve.scad>;
t_step = 0.05;
width = 2;
radius = 2;
p0 = [0, 0, 0];
p1 = [40, 60, 35];
@@ -26,6 +26,7 @@ If you have four control points and combine with the `hull_polyline3d` module:
[p0, p1, p2, p3]
);
hull_polyline3d(points, width);
polyline_join(points)
sphere(radius);
![bezier_curve](images/lib3x-bezier_curve-1.JPG)

22
docs/lib3x-hull_polyline2d.md
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@@ -1,22 +0,0 @@
# hull_polyline2d
Creates a 2D polyline from a list of `[x, y]` coordinates. As the name says, it uses the built-in hull operation for each pair of points (created by the `circle` module). It's slow. However, it can be used to create metallic effects for a small `$fn`, large `$fa` or `$fs`.
## Parameters
- `points` : The list of `[x, y]` points of the polyline. The points are indexed from 0 to n-1.
- `width` : The line width. Default to 1.
- `$fa`, `$fs`, `$fn` : Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.
## Examples
use <hull_polyline2d.scad>;
$fn = 4;
hull_polyline2d(
points = [[1, 2], [-5, -4], [-5, 3], [5, 5]],
width = 1
);
![hull_polyline3d](images/lib3x-hull_polyline2d-1.JPG)

45
docs/lib3x-hull_polyline3d.md
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@@ -1,45 +0,0 @@
# hull_polyline3d
Creates a 3D polyline from a list of `[x, y, z]` coordinates. As the name says, it uses the built-in hull operation for each pair of points (created by the `sphere` module). It's slow. However, it can be used to create metallic effects for a small `$fn`, large `$fa` or `$fs`.
## Parameters
- `points` : The list of `[x, y, z]` points of the polyline. The points are indexed from 0 to n-1.
- `diameter` : The line diameter. Default to 1.
- `$fa`, `$fs`, `$fn` : Check [the sphere module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Primitive_Solids#sphere) for more details.
## Examples
use <hull_polyline3d.scad>;
hull_polyline3d(
points = [
[1, 2, 3],
[4, -5, -6],
[-1, -3, -5],
[0, 0, 0]
],
diameter = 1,
$fn = 3
);
![polyline3d](images/lib3x-hull_polyline3d-1.JPG)
use <hull_polyline3d.scad>;
r = 50;
points = [
for(a = [0:180])
[
r * cos(-90 + a) * cos(a),
r * cos(-90 + a) * sin(a),
r * sin(-90 + a)
]
];
for(i = [0:7]) {
rotate(45 * i)
hull_polyline3d(points, 2, $fn = 3);
}
![polyline3d](images/lib3x-hull_polyline3d-2.JPG)

18
docs/lib3x-lsystem3.md
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@@ -33,14 +33,11 @@
[lsystem3-collections.scad](https://github.com/JustinSDK/dotSCAD/blob/master/examples/turtle/lsystem3_collection.scad) collects several L-system grammars. Here's one of them.
use <turtle/lsystem3.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
for(line = hilbert_curve()) {
hull_polyline3d(
[line[0], line[1]],
thickness = 0.5,
$fn = 4
);
polyline_join([line[0], line[1]])
sphere(.25, $fn = 4);
}
function hilbert_curve(n = 3, angle = 90, leng = 1, heading = 0, start = [0, 0, 0]) =
@@ -60,14 +57,11 @@
// a stochastic L-system
use <turtle/lsystem3.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
for(line = vine()) {
hull_polyline3d(
[line[0], line[1]],
thickness = 0.5,
$fn = 4
);
polyline_join([line[0], line[1]])
sphere(.25, $fn = 4);
}
function vine(n = 3, angle = 18, leng = 1, heading = 0, start = [0, 0, 0]) =

6
docs/lib3x-midpt_smooth.md
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@@ -12,14 +12,14 @@ Given a 2D path, this function constructs a mid-point smoothed version by joinin
## Examples
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <shape_taiwan.scad>;
use <midpt_smooth.scad>;
taiwan = shape_taiwan(50);
smoothed = midpt_smooth(taiwan, 20, true);
translate([0, 0, 0]) hull_polyline2d(taiwan, .25);
#translate([10, 0, 0]) hull_polyline2d(smoothed, .25);
translate([0, 0, 0]) polyline_join(taiwan) circle(.125);
#translate([10, 0, 0]) polyline_join(smoothed) circle(.125);
![midpt_smooth](images/lib3x-midpt_smooth-1.JPG)

5
docs/lib3x-mz_hamiltonian.md
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@@ -14,13 +14,14 @@ Creates a hamiltonian path from a maze. The path is the result of maze traversal
## Examples
use <maze/mz_hamiltonian.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
rows = 5;
columns = 10;
path = mz_hamiltonian(rows, columns, [0, 0]);
hull_polyline2d(path, .5);
polyline_join(path)
circle(.25);
![mz_hamiltonian](images/lib3x-mz_hamiltonian-1.JPG)

5
docs/lib3x-mz_hex_walls.md
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@@ -17,7 +17,7 @@ It's a helper for creating wall data from maze cells. You can transform wall poi
use <maze/mz_square_cells.scad>;
use <maze/mz_hex_walls.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
rows = 10;
columns = 12;
@@ -28,7 +28,8 @@ It's a helper for creating wall data from maze cells. You can transform wall poi
walls = mz_hex_walls(cells, rows, columns, cell_width);
for(wall = walls) {
hull_polyline2d(wall, wall_thickness, $fn = 24);
polyline_join(wall)
circle(wall_thickness, $fn = 24);
}
![mz_hex_walls](images/lib3x-mz_hex_walls-1.JPG)

11
docs/lib3x-mz_theta_cells.md
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@@ -25,7 +25,7 @@ The value of `type` is the wall type of the cell. It can be `0`, `1`, `2` or `3`
## Examples
use <maze/mz_theta_cells.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
rows = 8;
beginning_number = 8;
@@ -58,11 +58,13 @@ The value of `type` is the wall type of the cell. It can be `0`, `1`, `2` or `3`
outerVt2 = vt_from_angle(theta2, outerR);
if(type == INWARD_WALL || type == INWARD_CCW_WALL) {
hull_polyline2d([innerVt1, innerVt2], width = wall_thickness);
polyline_join([innerVt1, innerVt2])
circle(wall_thickness / 2);
}
if(type == CCW_WALL || type == INWARD_CCW_WALL) {
hull_polyline2d([innerVt2, outerVt2], width = wall_thickness);
polyline_join([innerVt1, innerVt2])
circle(wall_thickness / 2);
}
}
}
@@ -73,7 +75,8 @@ The value of `type` is the wall type of the cell. It can be `0`, `1`, `2` or `3`
for(theta = [0:thetaStep:360 - thetaStep]) {
vt1 = vt_from_angle(theta, r);
vt2 = vt_from_angle(theta + thetaStep, r);
hull_polyline2d([vt1, vt2], width = wall_thickness);
polyline_join([vt1, vt2])
circle(wall_thickness / 2);
}
![mz_theta_cells](images/lib3x-mz_theta_cells-3.JPG)

11
docs/lib3x-mz_theta_get.md
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@@ -13,7 +13,7 @@ It's a helper for getting data from a theta-maze cell.
use <maze/mz_theta_cells.scad>;
use <maze/mz_theta_get.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
rows = 8;
beginning_number = 8;
@@ -39,11 +39,13 @@ It's a helper for getting data from a theta-maze cell.
outerVt2 = vt_from_angle(theta2, outerR);
if(type == "INWARD_WALL" || type == "INWARD_CCW_WALL") {
hull_polyline2d([innerVt1, innerVt2], width = wall_thickness);
polyline_join([innerVt1, innerVt2])
circle(wall_thickness / 2);
}
if(type == "CCW_WALL" || type == "INWARD_CCW_WALL") {
hull_polyline2d([innerVt2, outerVt2], width = wall_thickness);
polyline_join([innerVt1, innerVt2])
circle(wall_thickness / 2);
}
}
}
@@ -53,7 +55,8 @@ It's a helper for getting data from a theta-maze cell.
for(theta = [0:thetaStep:360 - thetaStep]) {
vt1 = vt_from_angle(theta, r);
vt2 = vt_from_angle(theta + thetaStep, r);
hull_polyline2d([vt1, vt2], width = wall_thickness);
polyline_join([vt1, vt2])
circle(wall_thickness / 2);
}
![mz_theta_get](images/lib3x-mz_theta_get-1.JPG)

7
docs/lib3x-nz_perlin1.md
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@@ -11,13 +11,12 @@ Returns the 1D [Perlin noise](https://en.wikipedia.org/wiki/Perlin_noise) value
## Examples
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <util/rand.scad>;
use <noise/nz_perlin1.scad>;
seed = rand();
hull_polyline2d(
[for(x = [0:.1:10]) [x, nz_perlin1(x, seed)]], width = .1
);
polyline_join([for(x = [0:.1:10]) [x, nz_perlin1(x, seed)]])
circle(.05);
![nz_perlin1](images/lib3x-nz_perlin1-1.JPG)

5
docs/lib3x-nz_perlin1s.md
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@@ -11,13 +11,14 @@ Returns 1D [Perlin noise](https://en.wikipedia.org/wiki/Perlin_noise) values at
## Examples
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <noise/nz_perlin1s.scad>;
xs = [for(x = [0:.1:10]) x];
ys = nz_perlin1s(xs);
points = [for(i = [0:len(xs) - 1]) [xs[i], ys[i]]];
hull_polyline2d(points, width = .1);
polyline_join(points)
circle(.05);
![nz_perlin1s](images/lib3x-nz_perlin1s-1.JPG)

5
docs/lib3x-nz_perlin2.md
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@@ -13,7 +13,7 @@ Returns the 2D [Perlin noise](https://en.wikipedia.org/wiki/Perlin_noise) value
## Examples
use <util/rand.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <surface/sf_thicken.scad>;
use <noise/nz_perlin2.scad>;
use <contours.scad>;
@@ -31,7 +31,8 @@ Returns the 2D [Perlin noise](https://en.wikipedia.org/wiki/Perlin_noise) value
translate([11, 0])
for(isoline = contours(points, 0)) {
hull_polyline2d(isoline, width = .1);
polyline_join(isoline)
circle(.05);
}
![nz_perlin2](images/lib3x-nz_perlin2-1.JPG)

15
docs/lib3x-path_scaling_sections.md
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@@ -15,7 +15,7 @@ You can use any point as the first point of the edge path. Just remember that yo
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <shape_taiwan.scad>;
use <path_scaling_sections.scad>;
use <sweep.scad>;
@@ -33,12 +33,13 @@ You can use any point as the first point of the edge path. Just remember that yo
fst_pt + [0, 0, 60]
];
#hull_polyline3d(edge_path);
#polyline_join(edge_path)
sphere(.5);
sweep(path_scaling_sections(taiwan, edge_path));
![path_scaling_sections](images/lib3x-path_scaling_sections-1.JPG)
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <shape_taiwan.scad>;
use <path_scaling_sections.scad>;
use <sweep.scad>;
@@ -58,7 +59,8 @@ You can use any point as the first point of the edge path. Just remember that yo
fst_pt + [0, 0, 60]
]);
#hull_polyline3d(edge_path);
#polyline_join(edge_path)
sphere(.5);
sweep(path_scaling_sections(taiwan, edge_path));
![path_scaling_sections](images/lib3x-path_scaling_sections-2.JPG)
@@ -99,7 +101,7 @@ You can use any point as the first point of the edge path. Just remember that yo
![path_scaling_sections](images/lib3x-path_scaling_sections-3.JPG)
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <shape_taiwan.scad>;
use <path_scaling_sections.scad>;
use <sweep.scad>;
@@ -123,7 +125,8 @@ You can use any point as the first point of the edge path. Just remember that yo
fst_pt + ptf_rotate([0, 0, 60], a)
];
#hull_polyline3d(edge_path);
#polyline_join(edge_path)
sphere(.5);
sweep(path_scaling_sections(taiwan, edge_path));
![path_scaling_sections](images/lib3x-path_scaling_sections-4.JPG)

10
docs/lib3x-paths2sections.md
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@@ -11,7 +11,7 @@ You paths should be indexed count-clockwisely.
## Examples
use <paths2sections.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <sweep.scad>;
paths = [
@@ -26,14 +26,15 @@ You paths should be indexed count-clockwisely.
sweep(sections);
#for(path = paths) {
hull_polyline3d(path, 0.5);
polyline_join(path)
sphere(.25);
}
![paths2sections](images/lib3x-paths2sections-1.JPG)
use <bezier_curve.scad>;
use <paths2sections.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <sweep.scad>;
t_step = 0.05;
@@ -59,7 +60,8 @@ You paths should be indexed count-clockwisely.
sweep(sections);
#for(path = paths) {
hull_polyline3d(path, 0.5);
polyline_join(path)
sphere(.25);
}
![paths2sections](images/lib3x-paths2sections-2.JPG)

8
docs/lib3x-ptf_circle.md
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@@ -13,7 +13,7 @@ Transform a point inside a rectangle to a point inside a circle. You can use it
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <ptf/ptf_circle.scad>;
size = [10, 10];
@@ -30,12 +30,14 @@ Transform a point inside a rectangle to a point inside a circle. You can use it
for(line = rows) {
transformed = [for(p = line) ptf_circle(size, p)];
hull_polyline3d(transformed, thickness = .1);
polyline_join(transformed)
sphere(.05);
}
for(line = columns) {
transformed = [for(p = line) ptf_circle(size, p)];
hull_polyline3d(transformed, thickness = .1);
polyline_join(transformed)
sphere(.05);
}
![ptf_circle](images/lib3x-ptf_circle-2.JPG)

8
docs/lib3x-ptf_ring.md
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@@ -16,7 +16,7 @@ Transforms a point inside a rectangle to a point of a ring. It can create things
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <ptf/ptf_ring.scad>;
size = [20, 10];
@@ -34,12 +34,14 @@ Transforms a point inside a rectangle to a point of a ring. It can create things
for(line = rows) {
transformed = [for(p = line) ptf_ring(size, p, radius, 360, 180)];
hull_polyline3d(transformed, thickness = .5);
polyline_join(transformed)
sphere(.25);
}
for(line = columns) {
transformed = [for(p = line) ptf_ring(size, p, radius, 360, 180)];
hull_polyline3d(transformed, thickness = .5);
polyline_join(transformed)
sphere(.25);
}
![ptf_ring](images/lib3x-ptf_ring-2.JPG)

4
docs/lib3x-ptf_sphere.md
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@@ -35,13 +35,13 @@ Transforms a point inside a rectangle to a point of a sphere. It can create thin
for(line = rows) {
transformed = [for(p = line) ptf_sphere(size, p, radius, angle)];
polyline_join(transformed)
sphere(.5);
sphere(.25);
}
for(line = columns) {
transformed = [for(p = line) ptf_sphere(size, p, radius, angle)];
polyline_join(transformed)
sphere(.5);
sphere(.25);
}
![ptf_sphere](images/lib3x-ptf_sphere-2.JPG)

8
docs/lib3x-ptf_torus.md
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@@ -16,7 +16,7 @@ Transforms a point inside a rectangle to a point of a torus. It can create thing
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <ptf/ptf_torus.scad>;
size = [20, 10];
@@ -36,12 +36,14 @@ Transforms a point inside a rectangle to a point of a torus. It can create thing
for(line = rows) {
transformed = [for(p = line) ptf_torus(size, p, radius, angle, twist)];
hull_polyline3d(transformed, thickness = .5);
polyline_join(transformed)
sphere(.25);
}
for(line = columns) {
transformed = [for(p = line) ptf_torus(size, p, radius, angle, twist)];
hull_polyline3d(transformed, thickness = .5);
polyline_join(transformed)
sphere(.25);
}
![ptf_torus](images/lib3x-ptf_torus-2.JPG)

8
docs/lib3x-ptf_x_twist.md
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@@ -14,7 +14,7 @@ Twist a point along the x-axis. You can use it to create something such as a [tw
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <ptf/ptf_x_twist.scad>;
size = [20, 10];
@@ -31,12 +31,14 @@ Twist a point along the x-axis. You can use it to create something such as a [tw
for(line = rows) {
twisted = [for(p = line) ptf_x_twist(size, p, 90)];
hull_polyline3d(twisted, thickness = .1);
polyline_join(twisted)
sphere(.05);
}
for(line = columns) {
twisted = [for(p = line) ptf_x_twist(size, p, 90)];
hull_polyline3d(twisted, thickness = .1);
polyline_join(twisted)
sphere(.05);
}
![ptf_x_twist](images/lib3x-ptf_x_twist-1.JPG)

8
docs/lib3x-ptf_y_twist.md
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@@ -14,7 +14,7 @@ Twist a point along the y-axis. You can use it to create something such as a [tw
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <ptf/ptf_y_twist.scad>;
size = [10, 20];
@@ -31,12 +31,14 @@ Twist a point along the y-axis. You can use it to create something such as a [tw
for(line = rows) {
twisted = [for(p = line) ptf_y_twist(size, p, 90)];
hull_polyline3d(twisted, thickness = .1);
polyline_join(twisted)
sphere(.05);
}
for(line = columns) {
twisted = [for(p = line) ptf_y_twist(size, p, 90)];
hull_polyline3d(twisted, thickness = .1);
polyline_join(twisted)
sphere(.05);
}
![ptf_y_twist](images/lib3x-ptf_y_twist-1.JPG)

10
docs/lib3x-rails2sections.md
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@@ -13,7 +13,7 @@ Rails should be indexed count-clockwisely.
## Examples
use <rails2sections.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <sweep.scad>;
rails = [
@@ -28,14 +28,15 @@ Rails should be indexed count-clockwisely.
sweep(sections);
#for(path = rails) {
hull_polyline3d(path, 0.5);
polyline_join(path)
sphere(.25);
}
![rails2sections](images/lib3x-rails2sections-1.JPG)
use <bezier_curve.scad>;
use <rails2sections.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <sweep.scad>;
t_step = 0.05;
@@ -61,7 +62,8 @@ Rails should be indexed count-clockwisely.
sweep(sections);
#for(path = rails) {
hull_polyline3d(path, 0.5);
polyline_join(path)
sphere(.25);
}
![rails2sections](images/lib3x-rails2sections-2.JPG)

5
docs/lib3x-sf_curve.md
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@@ -20,7 +20,7 @@ Follow the steps described in [img2gray](https://github.com/JustinSDK/img2gray).
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <bezier_curve.scad>;
use <surface/sf_curve.scad>;
@@ -146,4 +146,5 @@ Follow the steps described in [img2gray](https://github.com/JustinSDK/img2gray).
sf_curve(levels, curve_path, thickness, depth, invert);
#hull_polyline3d(curve_path, 5);
#polyline_join(curve_path)
sphere(2.5);

10
docs/lib3x-sphere_spiral.md
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@@ -14,7 +14,7 @@ Creates all points and angles on the path of a spiral around a sphere. It return
## Examples
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <sphere_spiral.scad>;
points_angles = sphere_spiral(
@@ -25,7 +25,8 @@ Creates all points and angles on the path of a spiral around a sphere. It return
end_angle = 90
);
hull_polyline3d([for(pa = points_angles) pa[0]], 1);
polyline_join([for(pa = points_angles) pa[0]])
sphere(.5);
%sphere(40);
@@ -54,7 +55,7 @@ Creates all points and angles on the path of a spiral around a sphere. It return
![sphere_spiral](images/lib3x-sphere_spiral-5.JPG)
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <sphere_spiral.scad>;
points_angles = sphere_spiral(
@@ -64,7 +65,8 @@ Creates all points and angles on the path of a spiral around a sphere. It return
for(a = [0:30:360]) {
rotate(a)
hull_polyline3d([for(pa = points_angles) pa[0]], 2);
polyline_join([for(pa = points_angles) pa[0]])
sphere(1);
}
![sphere_spiral](images/lib3x-sphere_spiral-6.JPG)

8
docs/lib3x-t2d.md
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@@ -81,7 +81,7 @@ The code below creates the same drawing.
![t2d](images/lib3x-t2d-1.JPG)
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <turtle/t2d.scad>;
side_leng = 100;
@@ -100,10 +100,8 @@ The code below creates the same drawing.
["forward", side_leng]
]);
hull_polyline2d(
[for(turtle = [t, t2, t3, t]) t2d(turtle, "point")],
thickness
);
polyline_join([for(turtle = [t, t2, t3, t]) t2d(turtle, "point")])
circle(thickness / 2);
}
module sierpinski_triangle(t, side_leng, min_leng, thickness) {

9
docs/lib3x-t3d.md
View File

@@ -20,7 +20,7 @@ For more details, please see [3D turtle graphics](https://openhome.cc/eGossip/Op
## Examples
use <turtle/t3d.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
leng = 10;
angle = 120;
@@ -37,10 +37,9 @@ For more details, please see [3D turtle graphics](https://openhome.cc/eGossip/Op
["xforward", leng]
]);
hull_polyline3d(
[for(turtle = [t, t2, t3, t4]) t3d(turtle, "point")],
thickness
);
polyline_join(
[for(turtle = [t, t2, t3, t4]) t3d(turtle, "point")]
) sphere(thickness / 2);
![t3d](images/lib3x-t3d-1.JPG)

5
docs/lib3x-tri_delaunay.md
View File

@@ -12,7 +12,7 @@ Join a set of points to make a [Delaunay triangulation](https://en.wikipedia.org
## Examples
use <triangle/tri_delaunay.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
points = [for(i = [0:20]) rands(-100, 100, 2)];
@@ -32,7 +32,8 @@ Join a set of points to make a [Delaunay triangulation](https://en.wikipedia.org
color("red")
linear_extrude(3)
for(t = tri_delaunay(points, ret = "VORONOI_CELLS")) {
hull_polyline2d(concat(t, [t[0]]), 2);
polyline_join(concat(t, [t[0]]))
circle(1);
}
![tri_delaunay](images/lib3x-tri_delaunay-1.JPG)

5
docs/lib3x-tri_delaunay_indices.md
View File

@@ -14,7 +14,7 @@ A method of [`tri_delaunay`](lib3x-tri_delaunay.html). Returns the indices from
use <triangle/tri_delaunay_indices.scad>;
use <triangle/tri_delaunay_shapes.scad>;
use <triangle/tri_delaunay_voronoi.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
points = [for(i = [0:20]) rands(-100, 100, 2)];
@@ -36,7 +36,8 @@ A method of [`tri_delaunay`](lib3x-tri_delaunay.html). Returns the indices from
color("red")
linear_extrude(3)
for(t = tri_delaunay_voronoi(delaunay)) {
hull_polyline2d(concat(t, [t[0]]), 2);
polyline_join(concat(t, [t[0]]))
circle(1);
}
![tri_delaunay_indices](images/lib3x-tri_delaunay_indices-1.JPG)

5
docs/lib3x-tri_delaunay_shapes.md
View File

@@ -14,7 +14,7 @@ A method of [`tri_delaunay`](lib3x-tri_delaunay.html). Returns triangle shapes f
use <triangle/tri_delaunay_indices.scad>;
use <triangle/tri_delaunay_shapes.scad>;
use <triangle/tri_delaunay_voronoi.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
points = [for(i = [0:20]) rands(-100, 100, 2)];
@@ -36,7 +36,8 @@ A method of [`tri_delaunay`](lib3x-tri_delaunay.html). Returns triangle shapes f
color("red")
linear_extrude(3)
for(t = tri_delaunay_voronoi(delaunay)) {
hull_polyline2d(concat(t, [t[0]]), 2);
polyline_join(concat(t, [t[0]]))
circle(1);
}
![tri_delaunay_shapes](images/lib3x-tri_delaunay_shapes-1.JPG)

5
docs/lib3x-tri_delaunay_voronoi.md
View File

@@ -14,7 +14,7 @@ A method of [`tri_delaunay`](lib3x-tri_delaunay.html). Returns voronoi cells fro
use <triangle/tri_delaunay_indices.scad>;
use <triangle/tri_delaunay_shapes.scad>;
use <triangle/tri_delaunay_voronoi.scad>;
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
points = [for(i = [0:20]) rands(-100, 100, 2)];
@@ -36,7 +36,8 @@ A method of [`tri_delaunay`](lib3x-tri_delaunay.html). Returns voronoi cells fro
color("red")
linear_extrude(3)
for(t = tri_delaunay_voronoi(delaunay)) {
hull_polyline2d(concat(t, [t[0]]), 2);
polyline_join(concat(t, [t[0]]))
circle(1);
}
![tri_delaunay_voronoi](images/lib3x-tri_delaunay_voronoi-1.JPG)

11
docs/lib3x-trim_shape.md
View File

@@ -13,7 +13,7 @@ Given a tangled-edge shape. This function trims the shape to a non-tangled shape
## Examples
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <trim_shape.scad>;
use <shape_taiwan.scad>;
use <bijection_offset.scad>;
@@ -24,10 +24,13 @@ Given a tangled-edge shape. This function trims the shape to a non-tangled shape
trimmed = trim_shape(offseted, 3, len(offseted) - 6);
smoothed = midpt_smooth(trimmed, 3);
#hull_polyline2d(taiwan, .1);
#polyline_join(taiwan)
circle(.05);
%translate([25, 0, 0])
hull_polyline2d(offseted, .2);
hull_polyline2d(smoothed, .1);
polyline_join(offseted)
circle(.1);
polyline_join(smoothed)
circle(.05);
![trim_shape](images/lib3x-trim_shape-1.JPG)

5
docs/lib3x-vrn2_cells_from.md
View File

@@ -10,7 +10,7 @@ Create cell shapes of Voronoi from a list of points.
## Examples
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <voronoi/vrn2_cells_from.scad>;
points = [for(i = [0:50]) rands(-100, 100, 2)];
@@ -21,7 +21,8 @@ Create cell shapes of Voronoi from a list of points.
cell = cells[i];
linear_extrude(1)
hull_polyline2d(concat(cell, [cell[0]]), width = 1);
polyline_join(concat(cell, [cell[0]]))
circle(.5);
color(rands(0, 1, 3))
translate(pt)

10
docs/lib3x-vrn2_cells_space.md
View File

@@ -12,7 +12,7 @@ Create cell shapes of Voronoi in the first quadrant. You specify a space and a g
## Examples
use <hull_polyline2d.scad>;
use <polyline_join.scad>;
use <voronoi/vrn2_cells_space.scad>;
size = [20, 20];
@@ -24,7 +24,8 @@ Create cell shapes of Voronoi in the first quadrant. You specify a space and a g
cell_poly = cell[1];
linear_extrude(1)
hull_polyline2d(concat(cell_poly, [cell_poly[0]]), width = 1);
polyline_join(concat(cell_poly, [cell_poly[0]]))
circle(.5);
color(rands(0, 1, 3))
translate(cell_pt)
@@ -35,7 +36,7 @@ Create cell shapes of Voronoi in the first quadrant. You specify a space and a g
![vrn2_cells_space](images/lib3x-vrn2_cells_space-1.JPG)
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
use <ptf/ptf_torus.scad>;
use <voronoi/vrn2_cells_space.scad>;
@@ -48,7 +49,8 @@ Create cell shapes of Voronoi in the first quadrant. You specify a space and a g
for(cell = cells) {
cell_poly = [for(p = cell[1]) ptf_torus(size, p, [10, 5], [360, 360])];
hull_polyline3d(cell_poly, thickness = 1);
polyline_join(cell_poly)
sphere(.5);
}
![vrn2_cells_space](images/lib3x-vrn2_cells_space-2.JPG)

5
docs/lib3x-vx_curve.md
View File

@@ -12,7 +12,7 @@ Draws a voxel-by-voxel curve from control points. The curve is drawn only from t
## Examples
use <voxel/vx_curve.scad>;
use <hull_polyline3d.scad>;
use <polyline_join.scad>;
pts = [
[28, 2, 1],
@@ -32,6 +32,7 @@ Draws a voxel-by-voxel curve from control points. The curve is drawn only from t
translate(pt)
sphere(1);
}
#hull_polyline3d(pts, .1);
#polyline_join(pts)
sphere(.05);
![vx_curve](images/lib3x-vx_curve-1.JPG)