Hi,

I'd like to fill in all the area between these two objects.  When I use
hull, it fills in the area within the arc as well.

What I am after is something that looks a bit like a dam, if that makes
sense.

http://forum.openscad.org/file/t3018/H.jpg

Here is my code.  Does anybody have any ideas hoe I can join those shapes in
that way?

include <dotSCAD-master\src\rotate_p.scad>;
include <dotSCAD-master\src\polysections.scad>;
include <dotSCAD-master\src\path_extrude.scad>;
include <dotSCAD-master\src\bezier_curve.scad>;

no_steps=100;

t_step=1/no_steps;

shape_pts = [
[0, 0],
[2, 0],
[2,0.5],
[0,0.5],

];

bottom_path = [
[0,0,0],
[0,-20,0],
[20,-20,0],
[20,0,0],
];

top_path = [
[0,0,0],
[0,-25,0],
[25,-25,0],
[25,0,0],
];

bottom_path_pts = bezier_curve(t_step,bottom_path);
top_path_pts = bezier_curve(t_step,top_path);

path_extrude(shape_pts, bottom_path_pts, method = "EULER_ANGLE");

translate([-2.5,2,3]) path_extrude(shape_pts, top_path_pts, method =
"EULER_ANGLE");
*

--
Sent from: http://forum.openscad.org/

You want this?

use <rotate_p.scad>;
use <polysections.scad>;
use <path_extrude.scad>;
use <bezier_curve.scad>;
use <shape_path_extend.scad>;
use <sweep.scad>;

no_steps=100;

t_step=1/no_steps;

bottom_path = [
[0,0,0],
[0,-20,0],
[20,-20,0],
[20,0,0],
];

top_path = [
[0,0,0],
[0,-25,0],
[25,-25,0],
[25,0,0],
];

bottom_path_pts = bezier_curve(t_step,bottom_path);
top_path_pts = bezier_curve(t_step,top_path);

stroke = [[0, 0], [2, 0]];
shape1 = shape_path_extend(stroke, bottom_path_pts);
shape2 = shape_path_extend(stroke, top_path_pts);

sweep([
[for(p = shape1) [p[0], p[1], 0]],
[for(p = shape2) [p[0], p[1], 0] + [-2.5,2,3]]
]);

http://forum.openscad.org/file/t1825/1.jpg

https://openhome.cc

Sent from: http://forum.openscad.org/

Hi,

Wow, so many great answers, thanks!

I've tried both nophead and caterpillar's suggestions and got what I wanted
out of both.

It was good to do both, as it means I learn more!

Thanks so much, that has got me going now.

--
Sent from: http://forum.openscad.org/