/*
*
* 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/
*
*/
/*--------------------------------------------------------------
* This is an example from the Inventor Mentor,
* chapter 5, example 6.
*
* This example shows the effect of different order of
* operation of transforms. The left object is first
* scaled, then rotated, and finally translated to the left.
* The right object is first rotated, then scaled, and finally
* translated to the right.
*------------------------------------------------------------*/
#include <stdlib.h>
#include <Inventor/Xt/SoXt.h>
#include <Inventor/Xt/viewers/SoXtExaminerViewer.h>
#include <Inventor/SoDB.h>
#include <Inventor/nodes/SoMaterial.h>
#include <Inventor/nodes/SoRotationXYZ.h>
#include <Inventor/nodes/SoScale.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoTranslation.h>
int
main(int, char **argv)
{
// Initialize Inventor and Xt
Widget myWindow = SoXt::init(argv[0]);
if (myWindow == NULL) exit(1);
SoSeparator *root = new SoSeparator;
root->ref();
// Create two separators, for left and right objects.
SoSeparator *leftSep = new SoSeparator;
SoSeparator *rightSep = new SoSeparator;
root->addChild(leftSep);
root->addChild(rightSep);
// Create the transformation nodes
SoTranslation *leftTranslation = new SoTranslation;
SoTranslation *rightTranslation = new SoTranslation;
SoRotationXYZ *myRotation = new SoRotationXYZ;
SoScale *myScale = new SoScale;
// Fill in the values
leftTranslation->translation.setValue(-1.0, 0.0, 0.0);
rightTranslation->translation.setValue(1.0, 0.0, 0.0);
myRotation->angle = M_PI/2; // 90 degrees
myRotation->axis = SoRotationXYZ::X;
myScale->scaleFactor.setValue(2., 1., 3.);
// Add transforms to the scene.
leftSep->addChild(leftTranslation); // left graph
leftSep->addChild(myRotation); // then rotated
leftSep->addChild(myScale); // first scaled
rightSep->addChild(rightTranslation); // right graph
rightSep->addChild(myScale); // then scaled
rightSep->addChild(myRotation); // first rotated
// Read an object from file. (as in example 4.2.Lights)
SoInput myInput;
if (!myInput.openFile("/usr/share/src/Inventor/examples/data/temple.iv"))
exit (1);
SoSeparator *fileContents = SoDB::readAll(&myInput);
if (fileContents == NULL)
exit (1);
// Add an instance of the object under each separator.
leftSep->addChild(fileContents);
rightSep->addChild(fileContents);
// Construct a renderArea and display the scene.
SoXtExaminerViewer *myViewer =
new SoXtExaminerViewer(myWindow);
myViewer->setSceneGraph(root);
myViewer->setTitle("Transform Ordering");
myViewer->viewAll();
myViewer->show();
SoXt::show(myWindow);
SoXt::mainLoop();
}