root/OpenSceneGraph/trunk/examples/osgmanipulator/osgmanipulator.cpp @ 10431

Revision 10431, 12.0 kB (checked in by robert, 5 years ago)

Refactored osgManipulator so that CommandManager? is no longer required, instead Dragger directly manages Constaints and associate Selections.

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  • Property svn:keywords set to Author Date Id Revision
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1/* OpenSceneGraph example, osgmanipulator.
2*
3*  Permission is hereby granted, free of charge, to any person obtaining a copy
4*  of this software and associated documentation files (the "Software"), to deal
5*  in the Software without restriction, including without limitation the rights
6*  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7*  copies of the Software, and to permit persons to whom the Software is
8*  furnished to do so, subject to the following conditions:
9*
10*  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
11*  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
12*  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
13*  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
14*  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
15*  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
16*  THE SOFTWARE.
17*/
18
19#include <osgDB/ReadFile>
20#include <osgUtil/Optimizer>
21#include <osgViewer/Viewer>
22#include <osg/CoordinateSystemNode>
23#include <osgText/Text>
24
25#include <osgManipulator/CommandManager>
26#include <osgManipulator/TabBoxDragger>
27#include <osgManipulator/TabPlaneDragger>
28#include <osgManipulator/TabPlaneTrackballDragger>
29#include <osgManipulator/TrackballDragger>
30#include <osgManipulator/Translate1DDragger>
31#include <osgManipulator/Translate2DDragger>
32#include <osgManipulator/TranslateAxisDragger>
33
34#include <osg/ShapeDrawable>
35#include <osg/MatrixTransform>
36#include <osg/Geometry>
37#include <osg/Material>
38
39#include <iostream>
40
41// #define USE_COMMAND_MANAGER
42
43osgManipulator::Dragger* createDragger(const std::string& name)
44{
45    osgManipulator::Dragger* dragger = 0;
46    if ("TabPlaneDragger" == name)
47    {
48        osgManipulator::TabPlaneDragger* d = new osgManipulator::TabPlaneDragger();
49        d->setupDefaultGeometry();
50        dragger = d;
51    }
52    else if ("TabPlaneTrackballDragger" == name)
53    {
54        osgManipulator::TabPlaneTrackballDragger* d = new osgManipulator::TabPlaneTrackballDragger();
55        d->setupDefaultGeometry();
56        dragger = d;
57    }
58    else if ("TrackballDragger" == name)
59    {
60        osgManipulator::TrackballDragger* d = new osgManipulator::TrackballDragger();
61        d->setupDefaultGeometry();
62        dragger = d;
63    }
64    else if ("Translate1DDragger" == name)
65    {
66        osgManipulator::Translate1DDragger* d = new osgManipulator::Translate1DDragger();
67        d->setupDefaultGeometry();
68        dragger = d;
69    }
70    else if ("Translate2DDragger" == name)
71    {
72        osgManipulator::Translate2DDragger* d = new osgManipulator::Translate2DDragger();
73        d->setupDefaultGeometry();
74        dragger = d;
75    }
76    else if ("TranslateAxisDragger" == name)
77    {
78        osgManipulator::TranslateAxisDragger* d = new osgManipulator::TranslateAxisDragger();
79        d->setupDefaultGeometry();
80        dragger = d;
81    }
82    else
83    {
84        osgManipulator::TabBoxDragger* d = new osgManipulator::TabBoxDragger();
85        d->setupDefaultGeometry();
86        dragger = d;
87    }
88
89   
90 
91    return dragger;
92}
93
94
95osg::Node* addDraggerToScene(osg::Node* scene, osgManipulator::CommandManager* cmdMgr, const std::string& name)
96{
97    scene->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
98
99    osgManipulator::Selection* selection = new osgManipulator::Selection;
100    selection->addChild(scene);
101
102    osgManipulator::Dragger* dragger = createDragger(name);
103
104    dragger->setHandleEvents(true);
105
106    osg::Group* root = new osg::Group;
107    root->addChild(dragger);
108    root->addChild(selection);
109
110    float scale = scene->getBound().radius() * 1.6;
111    dragger->setMatrix(osg::Matrix::scale(scale, scale, scale) *
112                       osg::Matrix::translate(scene->getBound().center()));
113
114#ifdef USE_COMMAND_MANAGER
115    cmdMgr->connect(*dragger, *selection);
116#else
117    dragger->addSelection(selection);
118#endif
119    return root;
120}
121
122osg::Node* createDemoScene(osgManipulator::CommandManager* cmdMgr) {
123 
124    osg::Group* root = new osg::Group;
125
126    osg::ref_ptr<osg::Geode> geode_1 = new osg::Geode;
127    osg::ref_ptr<osg::MatrixTransform> transform_1 = new osg::MatrixTransform;
128
129    osg::ref_ptr<osg::Geode> geode_2 = new osg::Geode;
130    osg::ref_ptr<osg::MatrixTransform> transform_2 = new osg::MatrixTransform;
131
132    osg::ref_ptr<osg::Geode> geode_3 = new osg::Geode;
133    osg::ref_ptr<osg::MatrixTransform> transform_3 = new osg::MatrixTransform;
134
135    osg::ref_ptr<osg::Geode> geode_4 = new osg::Geode;
136    osg::ref_ptr<osg::MatrixTransform> transform_4 = new osg::MatrixTransform;
137
138    osg::ref_ptr<osg::Geode> geode_5 = new osg::Geode;
139    osg::ref_ptr<osg::MatrixTransform> transform_5 = new osg::MatrixTransform;
140
141    osg::ref_ptr<osg::Geode> geode_6 = new osg::Geode;
142    osg::ref_ptr<osg::MatrixTransform> transform_6 = new osg::MatrixTransform;
143
144    osg::ref_ptr<osg::Geode> geode_7 = new osg::Geode;
145    osg::ref_ptr<osg::MatrixTransform> transform_7 = new osg::MatrixTransform;
146
147 
148
149
150
151    const float radius = 0.8f;
152    const float height = 1.0f;
153    osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints;
154    hints->setDetailRatio(2.0f);
155    osg::ref_ptr<osg::ShapeDrawable> shape;
156
157    shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f, 0.0f, -2.0f), 10, 10.0f, 0.1f), hints.get());
158    shape->setColor(osg::Vec4(0.5f, 0.5f, 0.7f, 1.0f));
159    geode_1->addDrawable(shape.get());
160
161    shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 0.0f, 0.0f), radius * 2,radius), hints.get());
162    shape->setColor(osg::Vec4(0.8f, 0.8f, 0.8f, 1.0f));
163    geode_2->addDrawable(shape.get());
164
165    shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(-3.0f, 0.0f, 0.0f), radius,radius), hints.get());
166    shape->setColor(osg::Vec4(0.6f, 0.8f, 0.8f, 1.0f));
167    geode_3->addDrawable(shape.get());
168
169    shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(3.0f, 0.0f, 0.0f), 2 * radius,radius), hints.get());
170    shape->setColor(osg::Vec4(0.4f, 0.9f, 0.3f, 1.0f));
171    geode_4->addDrawable(shape.get());
172
173    shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, -3.0f, 0.0f), radius, height), hints.get());
174    shape->setColor(osg::Vec4(0.2f, 0.5f, 0.7f, 1.0f));
175    geode_5->addDrawable(shape.get());
176
177    shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 3.0f, 0.0f), radius, height), hints.get());
178    shape->setColor(osg::Vec4(1.0f, 0.3f, 0.3f, 1.0f));
179    geode_6->addDrawable(shape.get());
180
181    shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, 0.0f, 3.0f), 2.0f, 2.0f), hints.get());
182    shape->setColor(osg::Vec4(0.8f, 0.8f, 0.4f, 1.0f));
183    geode_7->addDrawable(shape.get());
184
185
186
187
188
189
190    // material
191    osg::ref_ptr<osg::Material> matirial = new osg::Material;
192    matirial->setColorMode(osg::Material::DIFFUSE);
193    matirial->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0, 1));
194    matirial->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1, 1));
195    matirial->setShininess(osg::Material::FRONT_AND_BACK, 64.0f);
196    root->getOrCreateStateSet()->setAttributeAndModes(matirial.get(), osg::StateAttribute::ON);
197
198      transform_1.get()->addChild(addDraggerToScene(geode_1.get(),cmdMgr,"TabBoxDragger"));
199    transform_2.get()->addChild(addDraggerToScene(geode_2.get(),cmdMgr,"TabPlaneDragger"));
200    transform_3.get()->addChild(addDraggerToScene(geode_3.get(),cmdMgr,"TabPlaneTrackballDragger"));
201    transform_4.get()->addChild(addDraggerToScene(geode_4.get(),cmdMgr,"TrackballDragger"));
202    transform_5.get()->addChild(addDraggerToScene(geode_5.get(),cmdMgr,"Translate1DDragger"));
203    transform_6.get()->addChild(addDraggerToScene(geode_6.get(),cmdMgr,"Translate2DDragger"));
204    transform_7.get()->addChild(addDraggerToScene(geode_7.get(),cmdMgr,"TranslateAxisDragger"));
205
206    root->addChild(transform_1.get());
207    root->addChild(transform_2.get());
208    root->addChild(transform_3.get());
209    root->addChild(transform_4.get());
210    root->addChild(transform_5.get());
211    root->addChild(transform_6.get());
212    root->addChild(transform_7.get());
213
214 
215 
216    return root;
217}
218//
219int main( int argc, char **argv )
220{
221
222    // use an ArgumentParser object to manage the program arguments.
223    osg::ArgumentParser arguments(&argc,argv);
224   
225    // set up the usage document, in case we need to print out how to use this program.
226    arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
227    arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
228    arguments.getApplicationUsage()->addCommandLineOption("--image <filename>","Load an image and render it on a quad");
229    arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
230    arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display command line parameters");
231    arguments.getApplicationUsage()->addCommandLineOption("--help-env","Display environmental variables available");
232    arguments.getApplicationUsage()->addCommandLineOption("--help-keys","Display keyboard & mouse bindings available");
233    arguments.getApplicationUsage()->addCommandLineOption("--help-all","Display all command line, env vars and keyboard & mouse bindings.");
234
235    arguments.getApplicationUsage()->addCommandLineOption("--dragger <draggername>","Use the specified dragger for manipulation [TabPlaneDragger,TabPlaneTrackballDragger,TrackballDragger,Translate1DDragger,Translate2DDragger,TranslateAxisDragger,TabBoxDragger]");
236   
237
238    // construct the viewer.
239    osgViewer::Viewer viewer;
240
241    // get details on keyboard and mouse bindings used by the viewer.
242    viewer.getUsage(*arguments.getApplicationUsage());
243
244    // if user request help write it out to cout.
245    bool helpAll = arguments.read("--help-all");
246    unsigned int helpType = ((helpAll || arguments.read("-h") || arguments.read("--help"))? osg::ApplicationUsage::COMMAND_LINE_OPTION : 0 ) |
247                            ((helpAll ||  arguments.read("--help-env"))? osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE : 0 ) |
248                            ((helpAll ||  arguments.read("--help-keys"))? osg::ApplicationUsage::KEYBOARD_MOUSE_BINDING : 0 );
249    if (helpType)
250    {
251        arguments.getApplicationUsage()->write(std::cout, helpType);
252        return 1;
253    }
254
255    // report any errors if they have occurred when parsing the program arguments.
256    if (arguments.errors())
257    {
258        arguments.writeErrorMessages(std::cout);
259        return 1;
260    }
261
262    std::string dragger_name = "TabBoxDragger";
263    arguments.read("--dragger", dragger_name);
264
265    osg::Timer_t start_tick = osg::Timer::instance()->tick();
266
267    // read the scene from the list of file specified command line args.
268    osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
269
270    // create a command manager
271    osg::ref_ptr<osgManipulator::CommandManager> cmdMgr;
272
273
274#ifdef USE_COMMAND_MANAGER
275    cmdMgr = new osgManipulator::CommandManager;
276#endif
277
278    // if no model has been successfully loaded report failure.
279    bool tragger2Scene(true);
280    if (!loadedModel)
281    {
282        //std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
283        //return 1;
284        loadedModel = createDemoScene(cmdMgr.get());
285        tragger2Scene=false;
286    }
287
288    // any option left unread are converted into errors to write out later.
289    arguments.reportRemainingOptionsAsUnrecognized();
290
291    // report any errors if they have occurred when parsing the program arguments.
292    if (arguments.errors())
293    {
294        arguments.writeErrorMessages(std::cout);
295    }
296
297    osg::Timer_t end_tick = osg::Timer::instance()->tick();
298
299    std::cout << "Time to load = "<<osg::Timer::instance()->delta_s(start_tick,end_tick)<<std::endl;
300
301
302    // optimize the scene graph, remove redundant nodes and state etc.
303    osgUtil::Optimizer optimizer;
304    optimizer.optimize(loadedModel.get());
305
306   
307    // pass the loaded scene graph to the viewer.
308    if ( tragger2Scene ) {
309        viewer.setSceneData(addDraggerToScene(loadedModel.get(), cmdMgr.get(), dragger_name));
310    } else {
311        viewer.setSceneData(loadedModel.get());
312    }
313
314
315    return viewer.run();
316}
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