trouble making a round flange with holes in
Btw, this is a very useful operator, which I use everyday. In my shortcuts
library I implemented it like this:
module rotN(r=10, N=4, offs=0, M=undef) for(i=[0:(M?M-1:N-1)])
rotate([0,0,offs+i*360/N]) translate([r,0,0]) children();
// Examples
color("green") rotN(40,12) cylinder(r=4, h=10);
color("red") rotN(30,12,M=6) cylinder(r=4, h=10);
color("blue") rotN(20,12,120, 6) cylinder(r=4, h=10);
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Cool. My version is called rep_rotate(count) shape (rep == repeat).
module rep_rotate(count)
for (i=[0:count-1])
rotate(i*360/count)
children();
color("green")
rep_rotate(12) translate([40,0,0]) cylinder(r=4, h=10);
I'm not saying this is a better interface, I just think it's interesting
that a lot of people have come up with the same abstraction, and I like to
see how other people use OpenSCAD. Now that I've seen these other modules,
I might add a radius to mine.
On 22 March 2017 at 12:25, Parkinbot rudolf@parkinbot.com wrote:
Btw, this is a very useful operator, which I use everyday. In my shortcuts
library I implemented it like this:
module rotN(r=10, N=4, offs=0, M=undef) for(i=[0:(M?M-1:N-1)])
rotate([0,0,offs+i*360/N]) translate([r,0,0]) children();
// Examples
color("green") rotN(40,12) cylinder(r=4, h=10);
color("red") rotN(30,12,M=6) cylinder(r=4, h=10);
color("blue") rotN(20,12,120, 6) cylinder(r=4, h=10);
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Parkinbot wrote
Btw, this is a very useful operator, which I use everyday. In my shortcuts
library I implemented it like this:
Nice. My trouble with that kind of function and operators is that the more
flexible they are the more parameter names I have to memorize when I need
them. Yes, I always may consult the code but that is their burden.
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Ronaldo wrote
Nice. My trouble with that kind of function and operators is that the more
flexible they are the more parameter names I have to memorize when I need
them. Yes, I always may consult the code but that is their burden.
That is why I implement a help() module in every library. For shortcuts.scad
you get the output:
ECHO: "
shortcuts.scad
help(): shows this help
help_shortcuts(): shows this help
show_examples(): shows some examples
place_in_rect(): places children objects in grid
Transformations:
transform : T(x=0, y=0, z=0), Tx(x=0) , Ty(y=0), Tz(z=0)
rotate : R(x=0, y=0, z=0), Rx(x=0) , Ry(y=0), Rz(z=0)
scale : S(x=1, y=1, z=1), Sx(x=1) , Sy(y=1), Sz(z=1)
Logical
difference : D()
union : U()
intersection : I()
Useful
N instances around circle : rotN(r=10, N=4, offs=0, M=undef)
range function [0:1:N] : Rg(N)
color : C(r,b,g,t) or C(string,t)
Primitives
circle : Ci(r=10, d=undef)
circle_half : CiH(r=10, w=0, d=undef)
circle_segment : CiS(r=10, w1=0, w2=90, d=undef)
square : Sq(x=10, y=undef, center=true))
cylinder : Cy(r=10, h=1, center=true, r1=undef, r2=undef, d=undef)
cylinder_half : CyH(r=10, w=0, d=undef)
cylinder_segment: CyS(r=10, h=1, w1=0, w2=90,center=true, d=undef)
cylinder_segment: Pie(r=10, h=1, w1=0, w2=90,center=true, d=undef)
cube : Cu(x=10, y=undef, z=undef, center=true)
ring : Ri(R=10, r=5, h=1, center=true, D=undef, d=undef)
ring_half : RiH(R=10, r=5, h=1, w=0 center=true, D=undef, d=undef)
ring_segment : RiS(R=10, r=5, h=1, w1=0, w2=90, center=true, D=undef,
d=undef)
sphere: Sp(r=10))
sphere_half: SpH(r=10, w1 = 0, w2 = 0)
torus: To(torus(R=10, r=1, w1=0, w2=360)
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2017-03-22 19:24 GMT-03:00 Parkinbot rudolf@parkinbot.com:
That is why I implement a help() module in every library. For
shortcuts.scad
you get the output:
That is a good practice but what do you do when you have several libraries
in <use>, each with its help() ? There is no way to qualify an used
function or module.
Ronaldo wrote
That is a good practice but what do you do when you have several libraries
in
<use>
, each with its help() ? There is no way to qualify an used
function or module.
- There is a help_/library/() synonym (another naming convention)
- You always can include the library you want to call help() latest (yet
another hack, I know)
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