Added a osgCmakeExample to illustrate a minimal CMakeList.txt to show how to build an OSG application using Cmake
This commit is contained in:
parent
0a3b2402c8
commit
96b180ddad
24
examples/osgCMakeExample/CMakeLists.txt
Normal file
24
examples/osgCMakeExample/CMakeLists.txt
Normal file
@ -0,0 +1,24 @@
|
||||
cmake_minimum_required(VERSION 2.6)
|
||||
|
||||
SET(PROJECT_NAME osgCMakeExample)
|
||||
|
||||
PROJECT(${PROJECT_NAME})
|
||||
|
||||
FIND_PACKAGE(OpenThreads)
|
||||
FIND_PACKAGE(osg)
|
||||
FIND_PACKAGE(osgDB)
|
||||
FIND_PACKAGE(osgUtil)
|
||||
FIND_PACKAGE(osgGA)
|
||||
FIND_PACKAGE(osgViewer)
|
||||
|
||||
SET(SOURCES
|
||||
main.cpp
|
||||
)
|
||||
|
||||
INCLUDE_DIRECTORIES(${OPENTHREADS_INCLUDE_DIR} ${OSG_INCLUDE_DIR})
|
||||
|
||||
LINK_DIRECTORIES(${OSG_LIB_DIR})
|
||||
|
||||
ADD_EXECUTABLE(${PROJECT_NAME} ${SOURCES})
|
||||
|
||||
TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${OSG_LIBRARIES} ${OSGVIEWER_LIBRARIES} ${OSGUTIL_LIBRARIES} ${OSGDB_LIBRARIES} ${OSGGA_LIBRARIES} ${OPENTHREADS_LIBRARIES})
|
183
examples/osgCMakeExample/main.cpp
Normal file
183
examples/osgCMakeExample/main.cpp
Normal file
@ -0,0 +1,183 @@
|
||||
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield
|
||||
*
|
||||
* This application is open source and may be redistributed and/or modified
|
||||
* freely and without restriction, both in commercial and non commercial applications,
|
||||
* as long as this copyright notice is maintained.
|
||||
*
|
||||
* This application 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.
|
||||
*/
|
||||
|
||||
#include <osgDB/ReadFile>
|
||||
#include <osgUtil/Optimizer>
|
||||
#include <osg/CoordinateSystemNode>
|
||||
|
||||
#include <osg/Switch>
|
||||
#include <osg/Types>
|
||||
#include <osgText/Text>
|
||||
|
||||
#include <osgViewer/Viewer>
|
||||
#include <osgViewer/ViewerEventHandlers>
|
||||
|
||||
#include <osgGA/TrackballManipulator>
|
||||
#include <osgGA/FlightManipulator>
|
||||
#include <osgGA/DriveManipulator>
|
||||
#include <osgGA/KeySwitchMatrixManipulator>
|
||||
#include <osgGA/StateSetManipulator>
|
||||
#include <osgGA/AnimationPathManipulator>
|
||||
#include <osgGA/TerrainManipulator>
|
||||
#include <osgGA/SphericalManipulator>
|
||||
|
||||
#include <osgGA/Device>
|
||||
|
||||
#include <iostream>
|
||||
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
// use an ArgumentParser object to manage the program arguments.
|
||||
osg::ArgumentParser arguments(&argc,argv);
|
||||
|
||||
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
|
||||
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the standard OpenSceneGraph example which loads and visualises 3d models.");
|
||||
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("--image <filename>","Load an image and render it on a quad");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("--login <url> <username> <password>","Provide authentication information for http file access.");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("-p <filename>","Play specified camera path animation file, previously saved with 'z' key.");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("--speed <factor>","Speed factor for animation playing (1 == normal speed).");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("--device <device-name>","add named device to the viewer");
|
||||
|
||||
osgViewer::Viewer viewer(arguments);
|
||||
|
||||
unsigned int helpType = 0;
|
||||
if ((helpType = arguments.readHelpType()))
|
||||
{
|
||||
arguments.getApplicationUsage()->write(std::cout, helpType);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// report any errors if they have occurred when parsing the program arguments.
|
||||
if (arguments.errors())
|
||||
{
|
||||
arguments.writeErrorMessages(std::cout);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (arguments.argc()<=1)
|
||||
{
|
||||
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
||||
return 1;
|
||||
}
|
||||
|
||||
std::string url, username, password;
|
||||
while(arguments.read("--login",url, username, password))
|
||||
{
|
||||
if (!osgDB::Registry::instance()->getAuthenticationMap())
|
||||
{
|
||||
osgDB::Registry::instance()->setAuthenticationMap(new osgDB::AuthenticationMap);
|
||||
osgDB::Registry::instance()->getAuthenticationMap()->addAuthenticationDetails(
|
||||
url,
|
||||
new osgDB::AuthenticationDetails(username, password)
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
std::string device;
|
||||
while(arguments.read("--device", device))
|
||||
{
|
||||
osg::ref_ptr<osgGA::Device> dev = osgDB::readRefFile<osgGA::Device>(device);
|
||||
if (dev.valid())
|
||||
{
|
||||
viewer.addDevice(dev);
|
||||
}
|
||||
}
|
||||
|
||||
// set up the camera manipulators.
|
||||
{
|
||||
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
|
||||
|
||||
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
|
||||
keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
|
||||
keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
|
||||
keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
|
||||
keyswitchManipulator->addMatrixManipulator( '5', "Orbit", new osgGA::OrbitManipulator() );
|
||||
keyswitchManipulator->addMatrixManipulator( '6', "FirstPerson", new osgGA::FirstPersonManipulator() );
|
||||
keyswitchManipulator->addMatrixManipulator( '7', "Spherical", new osgGA::SphericalManipulator() );
|
||||
|
||||
std::string pathfile;
|
||||
double animationSpeed = 1.0;
|
||||
while(arguments.read("--speed",animationSpeed) ) {}
|
||||
char keyForAnimationPath = '8';
|
||||
while (arguments.read("-p",pathfile))
|
||||
{
|
||||
osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
|
||||
if (apm || !apm->valid())
|
||||
{
|
||||
apm->setTimeScale(animationSpeed);
|
||||
|
||||
unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
|
||||
keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
|
||||
keyswitchManipulator->selectMatrixManipulator(num);
|
||||
++keyForAnimationPath;
|
||||
}
|
||||
}
|
||||
|
||||
viewer.setCameraManipulator( keyswitchManipulator.get() );
|
||||
}
|
||||
|
||||
// add the state manipulator
|
||||
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
|
||||
|
||||
// add the thread model handler
|
||||
viewer.addEventHandler(new osgViewer::ThreadingHandler);
|
||||
|
||||
// add the window size toggle handler
|
||||
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
|
||||
|
||||
// add the stats handler
|
||||
viewer.addEventHandler(new osgViewer::StatsHandler);
|
||||
|
||||
// add the help handler
|
||||
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
|
||||
|
||||
// add the record camera path handler
|
||||
viewer.addEventHandler(new osgViewer::RecordCameraPathHandler);
|
||||
|
||||
// add the LOD Scale handler
|
||||
viewer.addEventHandler(new osgViewer::LODScaleHandler);
|
||||
|
||||
// add the screen capture handler
|
||||
viewer.addEventHandler(new osgViewer::ScreenCaptureHandler);
|
||||
|
||||
// load the data
|
||||
osg::ref_ptr<osg::Node> loadedModel = osgDB::readRefNodeFiles(arguments);
|
||||
if (!loadedModel)
|
||||
{
|
||||
std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
|
||||
return 1;
|
||||
}
|
||||
|
||||
// any option left unread are converted into errors to write out later.
|
||||
arguments.reportRemainingOptionsAsUnrecognized();
|
||||
|
||||
// report any errors if they have occurred when parsing the program arguments.
|
||||
if (arguments.errors())
|
||||
{
|
||||
arguments.writeErrorMessages(std::cout);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
// optimize the scene graph, remove redundant nodes and state etc.
|
||||
osgUtil::Optimizer optimizer;
|
||||
optimizer.optimize(loadedModel);
|
||||
|
||||
viewer.setSceneData(loadedModel);
|
||||
|
||||
viewer.realize();
|
||||
|
||||
return viewer.run();
|
||||
|
||||
}
|
Loading…
Reference in New Issue
Block a user