Basic 3d

Basic 3D shapes. More...

Collaboration diagram for Basic 3d:

Files
file	basic_3d.scad
	Basic 3D shapes.

Functions
module	cone (r, h, d, vr, vr1, vr2)
	A cone. More...
module	cuboid (size, vr, vrm=0, center=false)
	A cuboid with edge, round, or chamfer corners. More...
module	ellipsoid (size)
	An ellipsoid. More...
module	ellipsoid_s (size, a1=0, a2=0)
	A sector of an ellipsoid. More...
module	pyramid_t (size, center=false)
	A pyramid with trilateral base formed by four equilateral triangles. More...
module	pyramid_q (size, center=false)
	A pyramid with quadrilateral base. More...
module	star3d (size, n=5, half=false)
	A three-dimensional star. More...

Detailed Description

Basic 3D shapes.

Requires:
include <omdl-base.scad>;

Basic 3d

I	II	III
cone()	cuboid()	ellipsoid()
IV	V	VI
ellipsoid_s()	pyramid_q()	pyramid_t()
VII
star3d()

Function Documentation

cone()

module cone	(	r	,
		h	,
		d	,
		vr	,
		vr1	,
		vr2
	)

A cone.

Parameters

r	<decimal> The base radius.
h	<decimal> The height.
d	<decimal> The base diameter.
vr	<decimal> The default corner rounding radius.
vr1	<decimal> The base corner rounding radius.
vr2	<decimal> The point corner rounding radius.

Object example

      cone( h=25, r=10, vr=2 );

cone

Definition at line 461 of file basic_3d.scad.

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cuboid()

module cuboid	(	size	,
		vr	,
		vrm	= 0,
		center	= false
	)

A cuboid with edge, round, or chamfer corners.

Parameters

size	<decimal-list-3 | decimal> A list [x, y, z] of decimals or a single decimal for (x=y=z).
vr	<decimal> The corner rounding radius.
vrm	<integer> The radius mode. A 2-bit encoded integer that indicates edge and vertex finish. B0 controls edge and B1 controls vertex.
center	<boolean> Center about origin.

Object example

      cuboid( size=[25,40,20], vr=5, center=true );

cuboid

vrm	B1	B0	Description
0	0	0	round edges with round vertexes
1	0	1	chamfer edges with sphere vertexes
2	1	0	round edges with chamfer vertexes
3	1	1	chamfer edges with chamfer vertexes

Note

Using round replaces all edges with a quarter circle of radius vr, inset [vr, vr] from the each edge.

Using chamfer replaces all edges with isosceles right triangles with side lengths equal to the corner rounding radius vr. Therefore the chamfer length will be vr*sqrt(2) at 45 degree angles.

Definition at line 532 of file basic_3d.scad.

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ellipsoid()

module ellipsoid

(

size

)

An ellipsoid.

Parameters

size	<decimal-list-2 | decimal> A list [w, h] of decimals or a single decimal for (w=h).

Object example

      ellipsoid( size=[40,25] );

ellipsoid

Definition at line 621 of file basic_3d.scad.

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ellipsoid_s()

module ellipsoid_s	(	size	,
		a1	= 0,
		a2	= 0
	)

A sector of an ellipsoid.

Parameters

size	<decimal-list-2 | decimal> A list [w, h] of decimals or a single decimal for (w=h).
a1	<decimal> The start angle in degrees.
a2	<decimal> The stop angle in degrees.

Object example

      ellipsoid_s( size=[60,15], a1=0, a2=270 );

ellipsoid_s

Definition at line 657 of file basic_3d.scad.

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pyramid_q()

module pyramid_q	(	size	,
		center	= false
	)

A pyramid with quadrilateral base.

Parameters

size	<decimal-list-3 | decimal> A list [x, y, z] of decimals or a single decimal for (x=y=z).
center	<boolean> Center about origin.

Object example

      pyramid_q( size=[35,20,5], center=true );

pyramid_q

Definition at line 762 of file basic_3d.scad.

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pyramid_t()

module pyramid_t	(	size	,
		center	= false
	)

A pyramid with trilateral base formed by four equilateral triangles.

Parameters

size	<decimal> The face radius.
center	<boolean> Center about origin.

Object example

      pyramid_t( size=20, center=true );

pyramid_t

Definition at line 717 of file basic_3d.scad.

star3d()

module star3d	(	size	,
		n	= 5,
		half	= false
	)

A three-dimensional star.

Parameters

size	<decimal-list-3 | decimal> A list [l, w, h] of decimals or a single decimal for (size=l=2*w=4*h).
n	<decimal> The number of points.
half	<boolean> Render upper half only.

Object example

      star3d( size=40, n=5, half=true );

star3d

Definition at line 812 of file basic_3d.scad.

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