From Mathias Froehlich, "Driven by the last qfontimplementation changes, I realized, that I never
contributed my testcase/demo for the original implementation. This attached change is similar to osgtext but uses the QFontImplementation in a Qt based viewer. With that, it should be easier for all of us to test changes in qfontimplementation"
This commit is contained in:
Robert Osfield
parent
523b77ee8f
commit
6072652875
@ -194,6 +194,7 @@ IF(DYNAMIC_OPENSCENEGRAPH)
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IF (BUILD_QT_EXAMPLES AND QT_QTOPENGL_LIBRARY)
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IF (BUILD_QT_EXAMPLES AND QT_QTOPENGL_LIBRARY)
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ADD_SUBDIRECTORY(osgviewerQt)
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ADD_SUBDIRECTORY(osgviewerQt)
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ADD_SUBDIRECTORY(osgqfont)
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ENDIF()
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ENDIF()
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IF (BUILD_QT_EXAMPLES AND QT4_FOUND AND QT_QTWEBKIT_FOUND)
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IF (BUILD_QT_EXAMPLES AND QT4_FOUND AND QT_QTWEBKIT_FOUND)
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11
examples/osgqfont/CMakeLists.txt
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11
examples/osgqfont/CMakeLists.txt
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@ -0,0 +1,11 @@
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#this file is automatically generated
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INCLUDE_DIRECTORIES( ${QT_INCLUDE_DIR} )
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ADD_DEFINITIONS(-DUSE_QT4)
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SET(TARGET_SRC osgqfont.cpp )
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SET(TARGET_ADDED_LIBRARIES osgQt osgText)
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SET(TARGET_EXTERNAL_LIBRARIES ${QT_QTCORE_LIBRARY_RELEASE} ${QT_QTGUI_LIBRARY_RELEASE} ${QT_QTOPENGL_LIBRARY_RELEASE} )
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#### end var setup ###
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SETUP_EXAMPLE(osgqfont)
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564
examples/osgqfont/osgqfont.cpp
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564
examples/osgqfont/osgqfont.cpp
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@ -0,0 +1,564 @@
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/* OpenSceneGraph example, osgtext.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <QtGui/QApplication>
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#include <QtGui/QGridLayout>
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#include <QtGui/QWidget>
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#include <osgQt/GraphicsWindowQt>
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#include <osgQt/QFontImplementation>
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#include <osgDB/ReadFile>
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#include <osgDB/WriteFile>
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#include <osgDB/Registry>
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#include <osgGA/StateSetManipulator>
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#include <osgGA/TrackballManipulator>
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#include <osgViewer/CompositeViewer>
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#include <osgViewer/ViewerEventHandlers>
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#include <osg/Geode>
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#include <osg/Camera>
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#include <osg/ShapeDrawable>
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#include <osg/Sequence>
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#include <osg/PolygonMode>
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#include <osgText/Font>
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#include <osgText/Text>
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osg::Group* createHUDText()
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{
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osg::Group* rootNode = new osg::Group;
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osgText::Font* font = new osgText::Font(new osgQt::QFontImplementation(QFont("Arial")));
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osg::Geode* geode = new osg::Geode;
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rootNode->addChild(geode);
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float windowHeight = 1024.0f;
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float windowWidth = 1280.0f;
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float margin = 50.0f;
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different text layout
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//
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osg::Vec4 layoutColor(1.0f,1.0f,0.0f,1.0f);
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float layoutCharacterSize = 20.0f;
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(layoutColor);
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text->setCharacterSize(layoutCharacterSize);
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text->setPosition(osg::Vec3(margin,windowHeight-margin,0.0f));
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// the default layout is left to right, typically used in languages
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// originating from europe such as English, French, German, Spanish etc..
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text->setLayout(osgText::Text::LEFT_TO_RIGHT);
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text->setText("text->setLayout(osgText::Text::LEFT_TO_RIGHT);");
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geode->addDrawable(text);
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}
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(layoutColor);
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text->setCharacterSize(layoutCharacterSize);
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text->setPosition(osg::Vec3(windowWidth-margin,windowHeight-margin,0.0f));
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// right to left layouts would be used for hebrew or arabic fonts.
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text->setLayout(osgText::Text::RIGHT_TO_LEFT);
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text->setAlignment(osgText::Text::RIGHT_BASE_LINE);
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text->setText("text->setLayout(osgText::Text::RIGHT_TO_LEFT);");
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geode->addDrawable(text);
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}
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(layoutColor);
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text->setPosition(osg::Vec3(margin,windowHeight-margin,0.0f));
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text->setCharacterSize(layoutCharacterSize);
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// vertical font layout would be used for asian fonts.
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text->setLayout(osgText::Text::VERTICAL);
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text->setText("text->setLayout(osgText::Text::VERTICAL);");
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geode->addDrawable(text);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different font resolution
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//
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osg::Vec4 fontSizeColor(0.0f,1.0f,1.0f,1.0f);
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float fontSizeCharacterSize = 30;
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osg::Vec3 cursor = osg::Vec3(margin*2,windowHeight-margin*2,0.0f);
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(fontSizeColor);
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text->setCharacterSize(fontSizeCharacterSize);
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text->setPosition(cursor);
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// use text that uses 10 by 10 texels as a target resolution for fonts.
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text->setFontResolution(10,10); // blocky but small texture memory usage
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text->setText("text->setFontResolution(10,10); // blocky but small texture memory usage");
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geode->addDrawable(text);
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}
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cursor.y() -= fontSizeCharacterSize;
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(fontSizeColor);
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text->setCharacterSize(fontSizeCharacterSize);
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text->setPosition(cursor);
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// use text that uses 20 by 20 texels as a target resolution for fonts.
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text->setFontResolution(20,20); // smoother but higher texture memory usage (but still quite low).
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text->setText("text->setFontResolution(20,20); // smoother but higher texture memory usage (but still quite low).");
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geode->addDrawable(text);
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}
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cursor.y() -= fontSizeCharacterSize;
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(fontSizeColor);
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text->setCharacterSize(fontSizeCharacterSize);
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text->setPosition(cursor);
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// use text that uses 40 by 40 texels as a target resolution for fonts.
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text->setFontResolution(40,40); // even smoother but again higher texture memory usage.
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text->setText("text->setFontResolution(40,40); // even smoother but again higher texture memory usage.");
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geode->addDrawable(text);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different sized text
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//
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osg::Vec4 characterSizeColor(1.0f,0.0f,1.0f,1.0f);
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cursor.y() -= fontSizeCharacterSize*2.0f;
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(characterSizeColor);
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text->setFontResolution(20,20);
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text->setPosition(cursor);
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// use text that is 20 units high.
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text->setCharacterSize(20); // small
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text->setText("text->setCharacterSize(20.0f); // small");
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geode->addDrawable(text);
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}
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cursor.y() -= 30.0f;
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(characterSizeColor);
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text->setFontResolution(30,30);
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text->setPosition(cursor);
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// use text that is 30 units high.
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text->setCharacterSize(30.0f); // medium
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text->setText("text->setCharacterSize(30.0f); // medium");
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geode->addDrawable(text);
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}
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cursor.y() -= 50.0f;
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{
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(characterSizeColor);
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text->setFontResolution(40,40);
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text->setPosition(cursor);
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// use text that is 60 units high.
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text->setCharacterSize(60.0f); // large
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text->setText("text->setCharacterSize(60.0f); // large");
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geode->addDrawable(text);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different alignments
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//
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osg::Vec4 alignmentSizeColor(0.0f,1.0f,0.0f,1.0f);
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float alignmentCharacterSize = 25.0f;
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cursor.x() = 640;
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cursor.y() = margin*4.0f;
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typedef std::pair<osgText::Text::AlignmentType,std::string> AlignmentPair;
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typedef std::vector<AlignmentPair> AlignmentList;
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AlignmentList alignmentList;
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_TOP,"text->setAlignment(\nosgText::Text::LEFT_TOP);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_CENTER,"text->setAlignment(\nosgText::Text::LEFT_CENTER);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_BOTTOM,"text->setAlignment(\nosgText::Text::LEFT_BOTTOM);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_TOP,"text->setAlignment(\nosgText::Text::CENTER_TOP);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_CENTER,"text->setAlignment(\nosgText::Text::CENTER_CENTER);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_BOTTOM,"text->setAlignment(\nosgText::Text::CENTER_BOTTOM);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_TOP,"text->setAlignment(\nosgText::Text::RIGHT_TOP);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_CENTER,"text->setAlignment(\nosgText::Text::RIGHT_CENTER);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_BOTTOM,"text->setAlignment(\nosgText::Text::RIGHT_BOTTOM);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_BASE_LINE,"text->setAlignment(\nosgText::Text::LEFT_BASE_LINE);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_BASE_LINE,"text->setAlignment(\nosgText::Text::CENTER_BASE_LINE);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_BASE_LINE,"text->setAlignment(\nosgText::Text::RIGHT_BASE_LINE);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_BOTTOM_BASE_LINE,"text->setAlignment(\nosgText::Text::LEFT_BOTTOM_BASE_LINE);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_BOTTOM_BASE_LINE,"text->setAlignment(\nosgText::Text::CENTER_BOTTOM_BASE_LINE);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_BOTTOM_BASE_LINE,"text->setAlignment(\nosgText::Text::RIGHT_BOTTOM_BASE_LINE);"));
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osg::Sequence* sequence = new osg::Sequence;
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{
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for(AlignmentList::iterator itr=alignmentList.begin();
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itr!=alignmentList.end();
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++itr)
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{
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osg::Geode* alignmentGeode = new osg::Geode;
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sequence->addChild(alignmentGeode);
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sequence->setTime(sequence->getNumChildren(), 1.0f);
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(alignmentSizeColor);
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text->setCharacterSize(alignmentCharacterSize);
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text->setPosition(cursor);
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text->setDrawMode(osgText::Text::TEXT|osgText::Text::ALIGNMENT|osgText::Text::BOUNDINGBOX);
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text->setAlignment(itr->first);
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text->setText(itr->second);
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alignmentGeode->addDrawable(text);
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}
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}
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sequence->setMode(osg::Sequence::START);
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sequence->setInterval(osg::Sequence::LOOP, 0, -1);
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sequence->setDuration(1.0f, -1);
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rootNode->addChild(sequence);
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different fonts...
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//
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cursor.x() = margin*2.0f;
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cursor.y() = margin*2.0f;
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osg::Vec4 fontColor(1.0f,0.5f,0.0f,1.0f);
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float fontCharacterSize = 20.0f;
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float spacing = 40.0f;
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{
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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text->setFont(0);
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text->setText("text->setFont(0); // inbuilt font.");
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geode->addDrawable(text);
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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{
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osgText::Font* arial = new osgText::Font(new osgQt::QFontImplementation(QFont("Arial")));
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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text->setFont(arial);
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text->setText(arial!=0?
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"text->setFont(\"fonts/arial.ttf\");":
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"unable to load \"fonts/arial.ttf\"");
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geode->addDrawable(text);
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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{
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osgText::Font* times = new osgText::Font(new osgQt::QFontImplementation(QFont("Times")));
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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geode->addDrawable(text);
|
||||||
|
text->setFont(times);
|
||||||
|
text->setText(times!=0?
|
||||||
|
"text->setFont(\"fonts/times.ttf\");":
|
||||||
|
"unable to load \"fonts/times.ttf\"");
|
||||||
|
|
||||||
|
cursor.x() = text->getBound().xMax() + spacing ;
|
||||||
|
}
|
||||||
|
|
||||||
|
cursor.x() = margin*2.0f;
|
||||||
|
cursor.y() = margin;
|
||||||
|
|
||||||
|
{
|
||||||
|
osgText::Font* dirtydoz = new osgText::Font(new osgQt::QFontImplementation(QFont("Times")));
|
||||||
|
|
||||||
|
osgText::Text* text = new osgText::Text;
|
||||||
|
text->setColor(fontColor);
|
||||||
|
text->setPosition(cursor);
|
||||||
|
text->setCharacterSize(fontCharacterSize);
|
||||||
|
|
||||||
|
text->setFont(dirtydoz);
|
||||||
|
text->setText(dirtydoz!=0?
|
||||||
|
"text->setFont(\"fonts/dirtydoz.ttf\");":
|
||||||
|
"unable to load \"fonts/dirtydoz.ttf\"");
|
||||||
|
geode->addDrawable(text);
|
||||||
|
|
||||||
|
cursor.x() = text->getBound().xMax() + spacing ;
|
||||||
|
}
|
||||||
|
|
||||||
|
{
|
||||||
|
osgText::Font* fudd = new osgText::Font(new osgQt::QFontImplementation(QFont("Times")));
|
||||||
|
|
||||||
|
osgText::Text* text = new osgText::Text;
|
||||||
|
text->setColor(fontColor);
|
||||||
|
text->setPosition(cursor);
|
||||||
|
text->setCharacterSize(fontCharacterSize);
|
||||||
|
|
||||||
|
text->setFont(fudd);
|
||||||
|
text->setText(fudd!=0?
|
||||||
|
"text->setFont(\"fonts/fudd.ttf\");":
|
||||||
|
"unable to load \"fonts/fudd.ttf\"");
|
||||||
|
geode->addDrawable(text);
|
||||||
|
|
||||||
|
cursor.x() = text->getBound().xMax() + spacing ;
|
||||||
|
}
|
||||||
|
|
||||||
|
return rootNode;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
// create text which sits in 3D space such as would be inserted into a normal model
|
||||||
|
osg::Group* create3DText(const osg::Vec3& center,float radius)
|
||||||
|
{
|
||||||
|
|
||||||
|
osg::Geode* geode = new osg::Geode;
|
||||||
|
|
||||||
|
////////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
//
|
||||||
|
// Examples of how to set up axis/orientation alignments
|
||||||
|
//
|
||||||
|
|
||||||
|
float characterSize=radius*0.2f;
|
||||||
|
|
||||||
|
osg::Vec3 pos(center.x()-radius*.5f,center.y()-radius*.5f,center.z()-radius*.5f);
|
||||||
|
|
||||||
|
osgText::Text* text1 = new osgText::Text;
|
||||||
|
text1->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
text1->setCharacterSize(characterSize);
|
||||||
|
text1->setPosition(pos);
|
||||||
|
text1->setAxisAlignment(osgText::Text::XY_PLANE);
|
||||||
|
text1->setText("XY_PLANE");
|
||||||
|
geode->addDrawable(text1);
|
||||||
|
|
||||||
|
osgText::Text* text2 = new osgText::Text;
|
||||||
|
text2->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
text2->setCharacterSize(characterSize);
|
||||||
|
text2->setPosition(pos);
|
||||||
|
text2->setAxisAlignment(osgText::Text::YZ_PLANE);
|
||||||
|
text2->setText("YZ_PLANE");
|
||||||
|
geode->addDrawable(text2);
|
||||||
|
|
||||||
|
osgText::Text* text3 = new osgText::Text;
|
||||||
|
text3->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
text3->setCharacterSize(characterSize);
|
||||||
|
text3->setPosition(pos);
|
||||||
|
text3->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||||||
|
text3->setText("XZ_PLANE");
|
||||||
|
geode->addDrawable(text3);
|
||||||
|
|
||||||
|
|
||||||
|
osgText::Text* text4 = new osgText::Text;
|
||||||
|
text4->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
text4->setCharacterSize(characterSize);
|
||||||
|
text4->setPosition(center);
|
||||||
|
text4->setAxisAlignment(osgText::Text::SCREEN);
|
||||||
|
|
||||||
|
osg::Vec4 characterSizeModeColor(1.0f,0.0f,0.5f,1.0f);
|
||||||
|
|
||||||
|
osgText::Text* text5 = new osgText::Text;
|
||||||
|
text5->setColor(characterSizeModeColor);
|
||||||
|
text5->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
//text5->setCharacterSize(characterSize);
|
||||||
|
text5->setCharacterSize(32.0f); // medium
|
||||||
|
text5->setPosition(center - osg::Vec3(0.0, 0.0, 0.2));
|
||||||
|
text5->setAxisAlignment(osgText::Text::SCREEN);
|
||||||
|
text5->setCharacterSizeMode(osgText::Text::SCREEN_COORDS);
|
||||||
|
text5->setText("CharacterSizeMode SCREEN_COORDS(size 32.0)");
|
||||||
|
geode->addDrawable(text5);
|
||||||
|
|
||||||
|
osgText::Text* text6 = new osgText::Text;
|
||||||
|
text6->setColor(characterSizeModeColor);
|
||||||
|
text6->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
text6->setCharacterSize(characterSize);
|
||||||
|
text6->setPosition(center - osg::Vec3(0.0, 0.0, 0.4));
|
||||||
|
text6->setAxisAlignment(osgText::Text::SCREEN);
|
||||||
|
text6->setCharacterSizeMode(osgText::Text::OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT);
|
||||||
|
text6->setText("CharacterSizeMode OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT");
|
||||||
|
geode->addDrawable(text6);
|
||||||
|
|
||||||
|
osgText::Text* text7 = new osgText::Text;
|
||||||
|
text7->setColor(characterSizeModeColor);
|
||||||
|
text7->setFont(new osgText::Font(new osgQt::QFontImplementation(QFont("Times"))));
|
||||||
|
text7->setCharacterSize(characterSize);
|
||||||
|
text7->setPosition(center - osg::Vec3(0.0, 0.0, 0.6));
|
||||||
|
text7->setAxisAlignment(osgText::Text::SCREEN);
|
||||||
|
text7->setCharacterSizeMode(osgText::Text::OBJECT_COORDS);
|
||||||
|
text7->setText("CharacterSizeMode OBJECT_COORDS (default)");
|
||||||
|
geode->addDrawable(text7);
|
||||||
|
|
||||||
|
#if 1
|
||||||
|
// reproduce outline bounding box compute problem with backdrop on.
|
||||||
|
text4->setBackdropType(osgText::Text::OUTLINE);
|
||||||
|
text4->setDrawMode(osgText::Text::TEXT | osgText::Text::BOUNDINGBOX);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
text4->setText("SCREEN");
|
||||||
|
geode->addDrawable(text4);
|
||||||
|
|
||||||
|
osg::ShapeDrawable* shape = new osg::ShapeDrawable(new osg::Sphere(center,characterSize*0.2f));
|
||||||
|
shape->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::ON);
|
||||||
|
geode->addDrawable(shape);
|
||||||
|
|
||||||
|
osg::Group* rootNode = new osg::Group;
|
||||||
|
rootNode->addChild(geode);
|
||||||
|
|
||||||
|
return rootNode;
|
||||||
|
}
|
||||||
|
|
||||||
|
class MainWindow : public QWidget {
|
||||||
|
public:
|
||||||
|
MainWindow()
|
||||||
|
{
|
||||||
|
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits(osg::DisplaySettings::instance().get());
|
||||||
|
traits->width = width();
|
||||||
|
traits->height = height();
|
||||||
|
traits->doubleBuffer = true;
|
||||||
|
osgQt::GraphicsWindowQt* graphicsWindow = new osgQt::GraphicsWindowQt(traits.get());
|
||||||
|
|
||||||
|
QGridLayout* grid = new QGridLayout;
|
||||||
|
grid->setMargin(0);
|
||||||
|
grid->addWidget(graphicsWindow->getGraphWidget(), 0, 0);
|
||||||
|
setLayout(grid);
|
||||||
|
|
||||||
|
_viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);
|
||||||
|
|
||||||
|
osg::Camera* camera = _viewer.getCamera();
|
||||||
|
camera->setGraphicsContext(graphicsWindow);
|
||||||
|
camera->setViewport(new osg::Viewport(0, 0, width(), height()));
|
||||||
|
|
||||||
|
startTimer(10);
|
||||||
|
}
|
||||||
|
|
||||||
|
virtual void paintEvent(QPaintEvent* event)
|
||||||
|
{
|
||||||
|
_viewer.frame();
|
||||||
|
}
|
||||||
|
virtual void timerEvent(QTimerEvent* event)
|
||||||
|
{
|
||||||
|
_viewer.frame();
|
||||||
|
}
|
||||||
|
|
||||||
|
void setSceneData(osg::Node* node)
|
||||||
|
{
|
||||||
|
_viewer.setSceneData(node);
|
||||||
|
}
|
||||||
|
void setCameraManipulator(osgGA::CameraManipulator* manipulator, bool resetPosition = true)
|
||||||
|
{
|
||||||
|
_viewer.setCameraManipulator(manipulator, resetPosition);
|
||||||
|
}
|
||||||
|
|
||||||
|
private:
|
||||||
|
osgViewer::Viewer _viewer;
|
||||||
|
};
|
||||||
|
|
||||||
|
int main(int argc, char** argv)
|
||||||
|
{
|
||||||
|
QApplication app(argc, argv);
|
||||||
|
|
||||||
|
// prepare scene.
|
||||||
|
osg::Vec3 center(0.0f,0.0f,0.0f);
|
||||||
|
float radius = 1.0f;
|
||||||
|
|
||||||
|
// create the hud.
|
||||||
|
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
|
||||||
|
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
|
||||||
|
camera->setProjectionMatrixAsOrtho2D(0,1280,0,1024);
|
||||||
|
camera->setViewMatrix(osg::Matrix::identity());
|
||||||
|
camera->setClearMask(GL_DEPTH_BUFFER_BIT);
|
||||||
|
camera->addChild(createHUDText());
|
||||||
|
camera->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
|
||||||
|
|
||||||
|
// make sure the root node is group so we can add extra nodes to it.
|
||||||
|
osg::ref_ptr<osg::Group> group = new osg::Group;
|
||||||
|
group->addChild(camera.get());
|
||||||
|
group->addChild(create3DText(center, radius));
|
||||||
|
|
||||||
|
// The qt window
|
||||||
|
MainWindow widget;
|
||||||
|
|
||||||
|
// set the scene to render
|
||||||
|
widget.setSceneData(group);
|
||||||
|
widget.setCameraManipulator(new osgGA::TrackballManipulator);
|
||||||
|
|
||||||
|
widget.setGeometry(100, 100, 800, 600);
|
||||||
|
widget.show();
|
||||||
|
|
||||||
|
return app.exec();
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user