polyhedron Class Reference

Closed polyhedron volume defined by vertices and planar faces. More...

#include <angelcad.h>

Inheritance diagram for polyhedron:

Public Member Functions
	polyhedron (array< pos3d@>@ points)
	Construct polyhedron from a point cloud. The result is the convex hull polyhedron. More...
	polyhedron (array< pos3d@>@ points, array< pface@>@ faces)
	Construct polyhedron from arrays of points and faces. Face normals must point out. More...
	polyhedron (string file, int id=- 1)
	Read polyhedron from file (AMF,OBJ or OFF formats) More...
double	face_area (uint iface) const
	polyhedron face area More...
double	volume () const
	polyhedron volume More...
pface@	face (uint iface) const
	polyhedron face More...
pos3d@	vertex (uint iv) const
	polyhedron vertex More...
uint	nface () const
	Number of faces. More...
uint	nvert () const
	Number of vertices. More...
void	flip_face (uint iface)
	Flip polyhedron face normal. More...
void	flip_faces ()
	Flip all polyhedron face normals. More...
void	set_vertex (uint iv, pos3d@ pos)
	Set vertex position. More...
void	verify () const
	Verify that the polyhedron is closed and without errors. More...
Public Member Functions inherited from solid
solid@	opAdd (solid@ b)
	Boolean union operator+ overload. More...
solid@	opAnd (solid@ b)
	Boolean intersection operator& overload. More...
solid@	opMul (tmatrix@ matrix)
	Transform object by matrix multiplication: solid@ o2 = T * o1. More...
solid@	opSub (solid@ b)
	Boolean difference operator- overload. More...
Public Member Functions inherited from shape
boundingbox@	box () const
	Return bounding box of object. More...
tmatrix@	transform () const
	Return transformation matrix of object. More...
void	write_csg (string path)
	Write object to OpenSCAD .csg file. More...
void	write_xcsg (string path, double secant_tolerance=- 1.0)
	Write object to .xcsg file for processing by xcsg program. More...

Detailed Description

Closed polyhedron volume defined by vertices and planar faces.

a polyhedron is a general 3d object, defined by its vertices and polyhedron faces.
It is useful in many contexts. It can be constructed directly or by reference to an input file.

Constructor & Destructor Documentation

polyhedron() [1/3]

polyhedron::polyhedron

(

array< pos3d@>@

points

)

Construct polyhedron from a point cloud. The result is the convex hull polyhedron.

Parameters

points

array@

polyhedron() [2/3]

polyhedron::polyhedron	(	array< pos3d@>@	points,
		array< pface@>@	faces
	)

Construct polyhedron from arrays of points and faces. Face normals must point out.

Parameters

points	array@
faces	array@

polyhedron() [3/3]

polyhedron::polyhedron	(	string	file,
		int	id = - 1
	)

Read polyhedron from file (AMF,OBJ or OFF formats)

Parameters

file	string
id	int

Member Function Documentation

face()

pface@ polyhedron::face

(

uint

iface

)

const

polyhedron face

Parameters

iface

uint, index of polyhedron face

Returns

pface@, polyhedron face

face_area()

double polyhedron::face_area

(

uint

iface

)

const

polyhedron face area

Parameters

iface

uint, index of polyhedron face

Returns

double, computed area of polyhedron face

flip_face()

void polyhedron::flip_face

(

uint

iface

)

Flip polyhedron face normal.

Parameters

iface

uint, index of polyhedron face

flip_faces()

void polyhedron::flip_faces

(

)

Flip all polyhedron face normals.

nface()

uint polyhedron::nface

(

)

const

Number of faces.

Returns

uint, number of faces in polyhedron

nvert()

uint polyhedron::nvert

(

)

const

Number of vertices.

Returns

uint, number of vertices in polyhedron

set_vertex()

void polyhedron::set_vertex	(	uint	iv,
		pos3d@	pos
	)

Set vertex position.

Parameters

iv	uint, index of polyhedron vertex
pos	pos3d@, new position of vertex

verify()

void polyhedron::verify

(

)

const

Verify that the polyhedron is closed and without errors.

vertex()

pos3d@ polyhedron::vertex

(

uint

iv

)

const

polyhedron vertex

Parameters

iv	uint, index of polyhedron vertex

Returns

pos3d@, polyhedron vertex position

volume()

double polyhedron::volume

(

)

const

polyhedron volume

Returns

double, computed volume of polyhedron

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The documentation for this class was generated from the following file:

• angelcad.h