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openscad
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Improved curve rendering

master
Marius Kintel 2015-02-04 14:14:53 -05:00
parent 4f49b35ba4
commit d7d980675d
1 changed files with 17 additions and 17 deletions
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34
examples/Advanced/animation.scad
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@ -1,4 +1,4 @@
echo(version=version());
// animation.scad - Demo of animation usage
// The animation funtionality is based simply on a variable $t
// that is changed automatically by OpenSCAD while repeatedly
@ -15,6 +15,13 @@ echo(version=version());
arm1_length = 70;
arm2_length = 50;
r = 2;
$fn = 30;
plate();
pos = position($t);
arm(pos[0], pos[1], arm1_length, arm2_length);
// Function describing the X/Y position that should be traced
// by the arm over time.
// The $t variable will be used as parameter for this function
@ -56,27 +63,20 @@ module arm(x, y, l1, l2) {
cylinder(r1 = 0, r2 = r, h = 4 * r, center = true);
}
module curve() polygon([for (a = [ 0 : 0.004 : 1]) position(a)]);
// Draws the plate and the traced function using small black cubes.
module plate() {
%translate([0, 25, -3*r])
cube([150, 150, 0.1], center = true);
%for (a = [ 0 : 0.004 : 1]) {
pos = position(a);
color("black")
translate([pos[0], pos[1], -3*r])
cube([0.8, 0.8, 0.2], center = true);
%translate([0, 0, -3*r]) {
translate([0,25,0]) cube([150, 150, 0.1], center = true);
color("Black") linear_extrude(0.1) difference() {
curve();
offset(-1) curve();
}
}
}
r = 2;
$fn = 30;
plate();
pos = position($t);
arm(pos[0], pos[1], arm1_length, arm2_length);
echo(version=version());
// Written in 2015 by Torsten Paul <Torsten.Paul@gmx.de>
//
// To the extent possible under law, the author(s) have dedicated all