/*
*
* 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 13, example 4.
*
* Time counter engine.
* The output from an time counter engine is used to control
* horizontal and vertical motion of a figure object.
* The resulting effect is that the figure jumps across
* the screen.
*------------------------------------------------------------*/
#include <stdlib.h>
#include <Inventor/SoDB.h>
#include <Inventor/Xt/SoXt.h>
#include <Inventor/Xt/SoXtRenderArea.h>
#include <Inventor/engines/SoCompose.h>
#include <Inventor/engines/SoElapsedTime.h>
#include <Inventor/engines/SoTimeCounter.h>
#include <Inventor/nodes/SoDirectionalLight.h>
#include <Inventor/nodes/SoMaterial.h>
#include <Inventor/nodes/SoPerspectiveCamera.h>
#include <Inventor/nodes/SoRotationXYZ.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoTransform.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();
// Add a camera and light
SoPerspectiveCamera *myCamera = new SoPerspectiveCamera;
myCamera->position.setValue(-8.0, -7.0, 20.0);
myCamera->heightAngle = M_PI/2.5;
myCamera->nearDistance = 15.0;
myCamera->farDistance = 25.0;
root->addChild(myCamera);
root->addChild(new SoDirectionalLight);
//////////////////////////////////////////////////////////////
// CODE FOR The Inventor Mentor STARTS HERE
// Set up transformations
SoTranslation *jumpTranslation = new SoTranslation;
root->addChild(jumpTranslation);
SoTransform *initialTransform = new SoTransform;
initialTransform->translation.setValue(-20., 0., 0.);
initialTransform->scaleFactor.setValue(40., 40., 40.);
initialTransform->rotation.setValue(SbVec3f(1,0,0), M_PI/2.);
root->addChild(initialTransform);
// Read the man object from a file and add to the scene
SoInput myInput;
if (!myInput.openFile("/usr/share/src/Inventor/examples/data/jumpyMan.iv"))
exit (1);
SoSeparator *manObject = SoDB::readAll(&myInput);
if (manObject == NULL)
exit (1);
root->addChild(manObject);
// Create two counters, and connect to X and Y translations.
// The Y counter is small and high frequency.
// The X counter is large and low frequency.
// This results in small jumps across the screen,
// left to right, again and again and again and ....
SoTimeCounter *jumpHeightCounter = new SoTimeCounter;
SoTimeCounter *jumpWidthCounter = new SoTimeCounter;
SoComposeVec3f *jump = new SoComposeVec3f;
jumpHeightCounter->max = 4;
jumpHeightCounter->frequency = 1.5;
jumpWidthCounter->max = 40;
jumpWidthCounter->frequency = 0.15;
jump->x.connectFrom(&jumpWidthCounter->output);
jump->y.connectFrom(&jumpHeightCounter->output);
jumpTranslation->translation.connectFrom(&jump->vector);
// CODE FOR The Inventor Mentor ENDS HERE
//////////////////////////////////////////////////////////////
SoXtRenderArea *myRenderArea = new SoXtRenderArea(myWindow);
SbViewportRegion myRegion(myRenderArea->getSize());
myRenderArea->setSceneGraph(root);
myRenderArea->setTitle("Jumping Man");
myRenderArea->show();
SoXt::show(myWindow);
SoXt::mainLoop();
}