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IgSoG4Trd Class Reference

The documentation from Geant says: A Trd is a trapezoid with the x and y dimensions varying along z functions:. More...

#include <Iguana/Inventor/interface/IgSoG4Trd.h>

Inheritance diagram for IgSoG4Trd:

List of all members.

Public Member Functions
	IgSoG4Trd (void)
Static Public Member Functions
static void	initClass (void)
Public Attributes
SoSFFloat	dx1
SoSFFloat	dx2
SoSFFloat	dy1
SoSFFloat	dy2
SoSFFloat	dz
Protected Member Functions
virtual void	refresh (void)
Private Member Functions
	SO_KIT_CATALOG_ENTRY_HEADER (faces)
	SO_KIT_HEADER (IgSoG4Trd)

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Detailed Description

The documentation from Geant says: A Trd is a trapezoid with the x and y dimensions varying along z functions:.

Author:

Joe Boudreau

Date:

11 Nov 1996

Definition at line 28 of file IgSoG4Trd.h.

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Constructor & Destructor Documentation

IgSoG4Trd::IgSoG4Trd

(

void

)

Definition at line 24 of file IgSoG4Trd.cc.

References dx1, dx2, dy1, dy2, dz, FALSE, IgSoShapeKit::setUpConnections(), and TRUE.

{
    SO_KIT_CONSTRUCTOR (IgSoG4Trd);
    SO_KIT_ADD_FIELD (dx1, (1.0));
    SO_KIT_ADD_FIELD (dx2, (1.0));
    SO_KIT_ADD_FIELD (dy1, (1.0));
    SO_KIT_ADD_FIELD (dy2, (1.0));
    SO_KIT_ADD_FIELD (dz, (1.0));
    SO_KIT_ADD_CATALOG_ENTRY (faces, SoIndexedFaceSet, FALSE, separator,\x0, TRUE);
    SO_KIT_INIT_INSTANCE ();
    setUpConnections (true, true);
}

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Member Function Documentation

void IgSoG4Trd::initClass

(

void

)

[static]

Reimplemented from IgSoShapeKit.

Definition at line 21 of file IgSoG4Trd.cc.

Referenced by initNodes(), and initShapes().

{ SO_KIT_INIT_CLASS (IgSoG4Trd, IgSoShapeKit, "IgSoShapeKit"); }

void IgSoG4Trd::refresh

(

void

)

[protected, virtual]

Reimplemented from IgSoShapeKit.

Definition at line 38 of file IgSoG4Trd.cc.

References funct::cos(), dx1, dx2, dy1, dy2, dz, i, and funct::sin().

{
    // FIXME: Only do non-zero faces

    static const int    NPOINTS = 8;
    static const int    NFACES = 6;
    static const int    NINDICES = NFACES*5;

    SoIndexedFaceSet    *faces = new SoIndexedFaceSet;
    SoVertexProperty    *vtx = new SoVertexProperty;

    // Indices for the eight faces
    static const int    indices [NINDICES] = {
        3,2,1,0, SO_END_FACE_INDEX, // bottom
        4,5,6,7, SO_END_FACE_INDEX, // top
        0,1,5,4, SO_END_FACE_INDEX, 
        1,2,6,5, SO_END_FACE_INDEX,
        2,3,7,6, SO_END_FACE_INDEX,
        3,0,4,7, SO_END_FACE_INDEX
    };

    float               points [NPOINTS][3] = {
        {  dx1.getValue (),  dy1.getValue (), -dz.getValue () },
        { -dx1.getValue (),  dy1.getValue (), -dz.getValue () },
        { -dx1.getValue (), -dy1.getValue (), -dz.getValue () },
        {  dx1.getValue (), -dy1.getValue (), -dz.getValue () },
        {  dx2.getValue (),  dy2.getValue (),  dz.getValue () },
        { -dx2.getValue (),  dy2.getValue (),  dz.getValue () },
        { -dx2.getValue (), -dy2.getValue (),  dz.getValue () },
        {  dx2.getValue (), -dy2.getValue (),  dz.getValue () }
    };

    float t1 = atan ((dx2.getValue ()-dx1.getValue ()) / (2*dz.getValue ()));
    float t2 = atan ((dy2.getValue ()-dy1.getValue ()) / (2*dz.getValue ()));
    float st1 = sin (t1);
    float st2 = sin (t2);
    float ct1 = cos (t1);
    float ct2 = cos (t2);

    float               normals [NFACES][3] = {
        {    0,    0,   -1 },
        {    0,    0,    1 },
        {    0,  ct2, -st2 },
        { -ct1,    0, -st1 },
        {    0, -ct2, -st2 },
        {  ct1,    0, -st1 }
    };

    for (int i = 0; i < NPOINTS; ++i)
        vtx->vertex.set1Value (i, points[i][0], points[i][1], points[i][2]);

    for (int i = 0; i < NFACES; ++i)
        vtx->normal.set1Value (i, normals[i][0], normals[i][1], normals[i][2]);

    vtx->normalBinding = SoVertexProperty::PER_FACE;
    faces->coordIndex.setValues (0, NINDICES, indices);
    faces->vertexProperty = vtx;

    // Set parts
    setPart ("faces", faces);
}

IgSoG4Trd::SO_KIT_CATALOG_ENTRY_HEADER

(

faces

)

[private]

IgSoG4Trd::SO_KIT_HEADER

(

IgSoG4Trd

)

[private]

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Member Data Documentation

SoSFFloat IgSoG4Trd::dx1

Definition at line 37 of file IgSoG4Trd.h.

Referenced by VisG4VisSceneHandler::AddSolid(), IgSoG4Trd(), and refresh().

SoSFFloat IgSoG4Trd::dx2

Definition at line 38 of file IgSoG4Trd.h.

Referenced by VisG4VisSceneHandler::AddSolid(), IgSoG4Trd(), and refresh().

SoSFFloat IgSoG4Trd::dy1

Definition at line 39 of file IgSoG4Trd.h.

Referenced by VisG4VisSceneHandler::AddSolid(), IgSoG4Trd(), and refresh().

SoSFFloat IgSoG4Trd::dy2

Definition at line 40 of file IgSoG4Trd.h.

Referenced by VisG4VisSceneHandler::AddSolid(), IgSoG4Trd(), and refresh().

SoSFFloat IgSoG4Trd::dz

Definition at line 41 of file IgSoG4Trd.h.

Referenced by VisG4VisSceneHandler::AddSolid(), IgSoG4Trd(), and refresh().

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

• Iguana/Inventor/interface/IgSoG4Trd.h
• Iguana/Inventor/src/IgSoG4Trd.cc

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