719 lines
24 KiB
C++
719 lines
24 KiB
C++
/* 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 <osgUtil/Optimizer>
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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 <osgViewer/Viewer>
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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 <osg/io_utils>
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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 = osgText::readFontFile("fonts/arial.ttf");
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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 = osgText::readFontFile("fonts/arial.ttf");
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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 = osgText::readFontFile("fonts/times.ttf");
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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);
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text->setFont(times);
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text->setText(times!=0?
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"text->setFont(\"fonts/times.ttf\");":
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"unable to load \"fonts/times.ttf\"");
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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cursor.x() = margin*2.0f;
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cursor.y() = margin;
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{
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osgText::Font* dirtydoz = osgText::readFontFile("fonts/dirtydoz.ttf");
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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(dirtydoz);
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text->setText(dirtydoz!=0?
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"text->setFont(\"fonts/dirtydoz.ttf\");":
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"unable to load \"fonts/dirtydoz.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* fudd = osgText::readFontFile("fonts/fudd.ttf");
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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(fudd);
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text->setText(fudd!=0?
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"text->setFont(\"fonts/fudd.ttf\");":
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"unable to load \"fonts/fudd.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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return rootNode;
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}
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// create text which sits in 3D space such as would be inserted into a normal model
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osg::Group* create3DText(const osg::Vec3& center,float radius)
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{
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osg::Geode* geode = new osg::Geode;
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up axis/orientation alignments
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//
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float characterSize=radius*0.2f;
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osg::Vec3 pos(center.x()-radius*.5f,center.y()-radius*.5f,center.z()-radius*.5f);
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osgText::Text* text1 = new osgText::Text;
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text1->setFont("fonts/times.ttf");
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text1->setCharacterSize(characterSize);
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text1->setPosition(pos);
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text1->setAxisAlignment(osgText::Text::XY_PLANE);
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text1->setText("XY_PLANE");
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geode->addDrawable(text1);
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osgText::Text* text2 = new osgText::Text;
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text2->setFont("fonts/times.ttf");
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text2->setCharacterSize(characterSize);
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text2->setPosition(pos);
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text2->setAxisAlignment(osgText::Text::YZ_PLANE);
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text2->setText("YZ_PLANE");
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geode->addDrawable(text2);
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osgText::Text* text3 = new osgText::Text;
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text3->setFont("fonts/times.ttf");
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text3->setCharacterSize(characterSize);
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text3->setPosition(pos);
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text3->setAxisAlignment(osgText::Text::XZ_PLANE);
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text3->setText("XZ_PLANE");
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geode->addDrawable(text3);
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osgText::Text* text4 = new osgText::Text;
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text4->setFont("fonts/times.ttf");
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text4->setCharacterSize(characterSize);
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text4->setPosition(center);
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text4->setAxisAlignment(osgText::Text::SCREEN);
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osg::Vec4 characterSizeModeColor(1.0f,0.0f,0.5f,1.0f);
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osgText::Text* text5 = new osgText::Text;
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text5->setColor(characterSizeModeColor);
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text5->setFont("fonts/times.ttf");
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//text5->setCharacterSize(characterSize);
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text5->setCharacterSize(32.0f); // medium
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text5->setPosition(center - osg::Vec3(0.0, 0.0, 0.2));
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text5->setAxisAlignment(osgText::Text::SCREEN);
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text5->setCharacterSizeMode(osgText::Text::SCREEN_COORDS);
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text5->setText("CharacterSizeMode SCREEN_COORDS(size 32.0)");
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geode->addDrawable(text5);
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osgText::Text* text6 = new osgText::Text;
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text6->setColor(characterSizeModeColor);
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text6->setFont("fonts/times.ttf");
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text6->setCharacterSize(characterSize);
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text6->setPosition(center - osg::Vec3(0.0, 0.0, 0.4));
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text6->setAxisAlignment(osgText::Text::SCREEN);
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text6->setCharacterSizeMode(osgText::Text::OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT);
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text6->setText("CharacterSizeMode OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT");
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geode->addDrawable(text6);
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osgText::Text* text7 = new osgText::Text;
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text7->setColor(characterSizeModeColor);
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text7->setFont("fonts/times.ttf");
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text7->setCharacterSize(characterSize);
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text7->setPosition(center - osg::Vec3(0.0, 0.0, 0.6));
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text7->setAxisAlignment(osgText::Text::SCREEN);
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text7->setCharacterSizeMode(osgText::Text::OBJECT_COORDS);
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text7->setText("CharacterSizeMode OBJECT_COORDS (default)");
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geode->addDrawable(text7);
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#if 1
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// reproduce outline bounding box compute problem with backdrop on.
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text4->setBackdropType(osgText::Text::OUTLINE);
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text4->setDrawMode(osgText::Text::TEXT | osgText::Text::BOUNDINGBOX);
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#endif
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text4->setText("SCREEN");
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geode->addDrawable(text4);
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osg::ShapeDrawable* shape = new osg::ShapeDrawable(new osg::Sphere(center,characterSize*0.2f));
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shape->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::ON);
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geode->addDrawable(shape);
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|
|
osg::Group* rootNode = new osg::Group;
|
|
rootNode->addChild(geode);
|
|
|
|
return rootNode;
|
|
}
|
|
|
|
class UpdateTextOperation : public osg::Operation
|
|
{
|
|
public:
|
|
|
|
UpdateTextOperation(const osg::Vec3& center, float diameter, osg::Group* group):
|
|
Operation("UpdateTextOperation", true),
|
|
_center(center),
|
|
_diameter(diameter),
|
|
_maxNumChildren(200),
|
|
_maxNumTextPerGeode(10),
|
|
_group(group)
|
|
{
|
|
}
|
|
|
|
virtual void operator () (osg::Object* callingObject)
|
|
{
|
|
// decided which method to call according to whole has called me.
|
|
osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(callingObject);
|
|
|
|
if (viewer) update();
|
|
else load();
|
|
}
|
|
|
|
void update()
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"*** Doing update"<<std::endl;
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
if (_mergeSubgraph.valid())
|
|
{
|
|
_group->addChild(_mergeSubgraph.get());
|
|
|
|
_mergeSubgraph = 0;
|
|
|
|
if (_group->getNumChildren()>_maxNumChildren)
|
|
{
|
|
osg::Geode* geode = dynamic_cast<osg::Geode*>(_group->getChild(0));
|
|
if (geode)
|
|
{
|
|
_availableSubgraph.push_back(geode);
|
|
geode->removeDrawables(0,geode->getNumDrawables());
|
|
}
|
|
_group->removeChild(0,1);
|
|
}
|
|
|
|
_waitOnMergeBlock.release();
|
|
}
|
|
}
|
|
|
|
void load()
|
|
{
|
|
|
|
// osg::notify(osg::NOTICE)<<"Doing load"<<std::endl;
|
|
|
|
osg::ref_ptr<osg::Geode> geode;
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
if (!_availableSubgraph.empty())
|
|
{
|
|
geode = _availableSubgraph.front();
|
|
_availableSubgraph.pop_front();
|
|
}
|
|
}
|
|
|
|
if (!geode) geode = new osg::Geode;
|
|
|
|
for(unsigned int i=0; i<_maxNumTextPerGeode; ++i)
|
|
{
|
|
float x = float(rand()) / float(RAND_MAX) - 0.5f;
|
|
float y = float(rand()) / float(RAND_MAX) - 0.5f;
|
|
float z = float(i) / float(_maxNumTextPerGeode) - 0.5f;
|
|
osg::Vec3 position(x, y, z);
|
|
|
|
std::string str;
|
|
unsigned int _numCharacters = 5;
|
|
for(unsigned int ni=0; ni<_numCharacters;++ni)
|
|
{
|
|
str.push_back(char(32.0 + (float(rand())/float(RAND_MAX))*128.0f));
|
|
}
|
|
|
|
osgText::Text* text = new osgText::Text;
|
|
text->setDataVariance(osg::Object::DYNAMIC);
|
|
text->setPosition(_center + position * _diameter);
|
|
text->setFont("times.ttf");
|
|
text->setText(str);
|
|
text->setCharacterSize(0.025f * _diameter);
|
|
text->setAxisAlignment(osgText::Text::SCREEN);
|
|
|
|
geode->addDrawable(text);
|
|
}
|
|
|
|
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
_mergeSubgraph = geode;
|
|
}
|
|
|
|
// osg::notify(osg::NOTICE)<<"Waiting on merge"<<std::endl;
|
|
|
|
_waitOnMergeBlock.block();
|
|
|
|
}
|
|
|
|
virtual void release()
|
|
{
|
|
_waitOnMergeBlock.release();
|
|
}
|
|
|
|
typedef std::list< osg::ref_ptr<osg::Geode> > AvailableList;
|
|
|
|
osg::Vec3 _center;
|
|
float _diameter;
|
|
unsigned int _maxNumChildren;
|
|
unsigned int _maxNumTextPerGeode;
|
|
|
|
OpenThreads::Mutex _mutex;
|
|
osg::ref_ptr<osg::Group> _group;
|
|
osg::ref_ptr<osg::Geode> _mergeSubgraph;
|
|
AvailableList _availableSubgraph;
|
|
OpenThreads::Block _waitOnMergeBlock;
|
|
|
|
unsigned int _counter;
|
|
|
|
};
|
|
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
osg::ArgumentParser arguments(&argc, argv);
|
|
|
|
// construct the viewer.
|
|
osgViewer::Viewer viewer(arguments);
|
|
|
|
typedef std::list< osg::ref_ptr<osg::OperationThread> > Threads;
|
|
|
|
Threads operationThreads;
|
|
osg::ref_ptr<UpdateTextOperation> updateOperation;
|
|
|
|
unsigned int numThreads = 0;
|
|
if (arguments.read("--mt", numThreads) || arguments.read("--mt"))
|
|
{
|
|
// construct a multi-threaded text updating test.
|
|
if (numThreads==0) numThreads = 1;
|
|
|
|
// create a group to add everything into.
|
|
osg::Group* mainGroup = new osg::Group;
|
|
|
|
osg::Vec3 center(0.5f,0.5f,0.5f);
|
|
float diameter = 1.0f;
|
|
|
|
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
|
|
if (loadedModel.valid())
|
|
{
|
|
mainGroup->addChild(loadedModel.get());
|
|
|
|
center = loadedModel->getBound().center();
|
|
diameter = loadedModel->getBound().radius() * 2.0f;
|
|
}
|
|
|
|
for(unsigned int i=0; i<numThreads; ++i)
|
|
{
|
|
osg::Group* textGroup = new osg::Group;
|
|
mainGroup->addChild(textGroup);
|
|
|
|
// create the background thread
|
|
osg::OperationThread* operationThread = new osg::OperationThread;
|
|
|
|
operationThreads.push_back(operationThread);
|
|
|
|
// create the operation that will run in the background and
|
|
// sync once per frame with the main viewer loop.
|
|
updateOperation = new UpdateTextOperation(center, diameter, textGroup);
|
|
|
|
// add the operation to the operation thread and start it.
|
|
operationThread->add(updateOperation.get());
|
|
operationThread->startThread();
|
|
|
|
// add the operation to the viewer to sync once per frame.
|
|
viewer.addUpdateOperation(updateOperation.get());
|
|
|
|
|
|
// add a unit cube for the text to appear within.
|
|
osg::Geode* geode = new osg::Geode;
|
|
geode->getOrCreateStateSet()->setAttribute(new osg::PolygonMode(osg::PolygonMode::FRONT_AND_BACK,osg::PolygonMode::LINE));
|
|
geode->addDrawable(new osg::ShapeDrawable(new osg::Box(center,diameter)));
|
|
|
|
mainGroup->addChild(geode);
|
|
}
|
|
|
|
viewer.setSceneData(mainGroup);
|
|
}
|
|
else
|
|
{
|
|
// prepare scene.
|
|
osg::Vec3 center(0.0f,0.0f,0.0f);
|
|
float radius = 1.0f;
|
|
|
|
// make sure the root node is group so we can add extra nodes to it.
|
|
osg::Group* group = new osg::Group;
|
|
|
|
{
|
|
// create the hud.
|
|
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);
|
|
|
|
group->addChild(camera);
|
|
}
|
|
|
|
group->addChild(create3DText(center,radius));
|
|
|
|
// set the scene to render
|
|
viewer.setSceneData(group);
|
|
}
|
|
|
|
#if 0
|
|
osgDB::writeNodeFile(*viewer.getSceneData(),"text.osg");
|
|
#endif
|
|
|
|
viewer.addEventHandler(new osgViewer::StatsHandler());
|
|
|
|
viewer.run();
|
|
|
|
if (!operationThreads.empty())
|
|
{
|
|
for(Threads::iterator itr = operationThreads.begin();
|
|
itr != operationThreads.end();
|
|
++itr)
|
|
{
|
|
(*itr)->cancel();
|
|
}
|
|
}
|
|
}
|
|
|