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Initial check-in based on 2.1.5 (SGI IRIX) source tree.

/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */

/*
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Classes	: TsField::buildBlock
 |
 |   Author	: Dave Immel
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */

//--------------------------- Include ----------------------------------
#include <X11/Intrinsic.h>
#include <Xm/Xm.h>

#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoCoordinate3.h>
#include <Inventor/nodes/SoIndexedFaceSet.h>
#include <Inventor/nodes/SoNormal.h>
#include "TsField.h"


////////////////////////////////////////////////////////////////////////
//
// Description:
//	Initialize the Inventor data representing the block.  The block
//      is the basic unit from which all of the pieces are built.  It
//      is instanced for all pieces and the field.  The block is centered at
//      (1, 1, -1) and as length of 2.
//
// Use: private

void
TsField::buildBlock()

//
////////////////////////////////////////////////////////////////////////
{
    SoCoordinate3    *coords;
    SoIndexedFaceSet *faces;
    SoNormal         *normals;
    SbVec3f          *verts, tcoord;
    int32_t             *indices, *ind;
    int              i;

    block = new SoSeparator();
    block->renderCaching = SoSeparator::ON;
    block->ref();

    verts = new SbVec3f[24];
    // Front
    verts[0].setValue  ( 0.1,  0.1,  0.0);
    verts[1].setValue  ( 1.9,  0.1,  0.0);
    verts[2].setValue  ( 1.9,  1.9,  0.0);
    verts[3].setValue  ( 0.1,  1.9,  0.0);
    // Right
    verts[4].setValue  ( 2.0,  0.1, -0.1);
    verts[5].setValue  ( 2.0,  0.1, -1.9);
    verts[6].setValue  ( 2.0,  1.9, -1.9);
    verts[7].setValue  ( 2.0,  1.9, -0.1);
    // Back
    verts[8].setValue  ( 1.9,  0.1, -2.0);
    verts[9].setValue  ( 0.1,  0.1, -2.0);
    verts[10].setValue ( 0.1,  1.9, -2.0);
    verts[11].setValue ( 1.9,  1.9, -2.0);
    // Left
    verts[12].setValue ( 0.0,  0.1, -1.9);
    verts[13].setValue ( 0.0,  0.1, -0.1);
    verts[14].setValue ( 0.0,  1.9, -0.1);
    verts[15].setValue ( 0.0,  1.9, -1.9);
    // Bottom
    verts[16].setValue ( 0.1,  0.0, -1.9);
    verts[17].setValue ( 1.9,  0.0, -1.9);
    verts[18].setValue ( 1.9,  0.0, -0.1);
    verts[19].setValue ( 0.1,  0.0, -0.1);
    // Top
    verts[20].setValue ( 0.1,  2.0, -0.1);
    verts[21].setValue ( 1.9,  2.0, -0.1);
    verts[22].setValue ( 1.9,  2.0, -1.9);
    verts[23].setValue ( 0.1,  2.0, -1.9);
    coords = new SoCoordinate3();
    coords->point.setValues (0, 24, verts);
    tcoord.setValue (0.0, 0.0, 1.0);
    verts[0] = tcoord;
    verts[1] = tcoord;
    verts[2] = tcoord;
    verts[3] = tcoord;
    tcoord.setValue (1.0, 0.0, 0.0);
    verts[4] = tcoord;
    verts[5] = tcoord;
    verts[6] = tcoord;
    verts[7] = tcoord;
    tcoord.setValue (0.0, 0.0, -1.0);
    verts[8] = tcoord;
    verts[9] = tcoord;
    verts[10] = tcoord;
    verts[11] = tcoord;
    tcoord.setValue (-1.0, 0.0, 0.0);
    verts[12] = tcoord;
    verts[13] = tcoord;
    verts[14] = tcoord;
    verts[15] = tcoord;
    tcoord.setValue (0.0, -1.0, 0.0);
    verts[16] = tcoord;
    verts[17] = tcoord;
    verts[18] = tcoord;
    verts[19] = tcoord;
    tcoord.setValue (0.0, 1.0, 0.0);
    verts[20] = tcoord;
    verts[21] = tcoord;
    verts[22] = tcoord;
    verts[23] = tcoord;
    normals = new SoNormal();
    normals->vector.setValues (0, 24, verts);
    delete verts;

    indices = new int32_t[30+60+32];
    ind = indices;
    for (i=0; i<6; i++)
    {
        *ind++ = i*4;
        *ind++ = i*4+1;
        *ind++ = i*4+2;
        *ind++ = i*4+3;
        *ind++ = -1;
    }
    *ind++ = 13;  *ind++ = 12;  *ind++ = 16;  *ind++ = 19;  *ind++ = -1;
    *ind++ = 18;  *ind++ = 17;  *ind++ =  5;  *ind++ =  4;  *ind++ = -1;
    *ind++ =  7;  *ind++ =  6;  *ind++ = 22;  *ind++ = 21;  *ind++ = -1;
    *ind++ = 15;  *ind++ = 14;  *ind++ = 20;  *ind++ = 23;  *ind++ = -1;
    *ind++ = 19;  *ind++ = 18;  *ind++ =  1;  *ind++ =  0;  *ind++ = -1;
    *ind++ =  4;  *ind++ =  7;  *ind++ =  2;  *ind++ =  1;  *ind++ = -1;
    *ind++ =  3;  *ind++ =  2;  *ind++ = 21;  *ind++ = 20;  *ind++ = -1;
    *ind++ =  0;  *ind++ =  3;  *ind++ = 14;  *ind++ = 13;  *ind++ = -1;
    *ind++ = 17;  *ind++ = 16;  *ind++ =  9;  *ind++ =  8;  *ind++ = -1;
    *ind++ =  6;  *ind++ =  5;  *ind++ =  8;  *ind++ = 11;  *ind++ = -1;
    *ind++ = 11;  *ind++ = 10;  *ind++ = 23;  *ind++ = 22;  *ind++ = -1;
    *ind++ = 10;  *ind++ =  9;  *ind++ = 12;  *ind++ = 15;  *ind++ = -1;

    *ind++ =  0;  *ind++ = 13;  *ind++ = 19;  *ind++ = -1;
    *ind++ =  1;  *ind++ = 18;  *ind++ =  4;  *ind++ = -1;
    *ind++ =  2;  *ind++ =  7;  *ind++ = 21;  *ind++ = -1;
    *ind++ =  3;  *ind++ = 20;  *ind++ = 14;  *ind++ = -1;
    *ind++ =  9;  *ind++ = 16;  *ind++ = 12;  *ind++ = -1;
    *ind++ =  8;  *ind++ =  5;  *ind++ = 17;  *ind++ = -1;
    *ind++ = 11;  *ind++ = 22;  *ind++ =  6;  *ind++ = -1;
    *ind++ = 10;  *ind++ = 15;  *ind++ = 23;  *ind++ = -1;

    faces = new SoIndexedFaceSet();
    faces->coordIndex.setValues (0, 30+60+32, indices);
    delete indices;

    block->addChild (coords);
    block->addChild (normals);
    block->addChild (faces);
}