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Created stress test of fade text labelling

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This commit is contained in:
Robert Osfield 2006-09-20 12:58:34 +00:00
parent cc202c1b6d
commit efb76cb8e6
1 changed files with 43 additions and 29 deletions
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74
examples/osgfadetext/osgfadetext.cpp
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@ -91,42 +91,56 @@ osg::Node* createEarth()
} }
osgText::Text* createText(osg::EllipsoidModel* ellipsoid, double latitude, double longitude, double height, const std::string& str)
{
double X,Y,Z;
ellipsoid->convertLatLongHeightToXYZ( osg::DegreesToRadians(latitude), osg::DegreesToRadians(longitude), height, X, Y, Z);
osgText::FadeText* text = new osgText::FadeText;
text->setText(str);
text->setFont("fonts/arial.ttf");
text->setPosition(osg::Vec3(X,Y,Z));
text->setCharacterSize(300000.0f);
text->setCharacterSizeMode(osgText::Text::OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT);
text->setAutoRotateToScreen(true);
return text;
}
osg::Node* createFadeText(osg::EllipsoidModel* ellipsoid) osg::Node* createFadeText(osg::EllipsoidModel* ellipsoid)
{ {
osg::Group* group = new osg::Group; osg::Group* group = new osg::Group;
osg::Vec3 position; group->getOrCreateStateSet()->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
osg::Geode* geode = new osg::Geode;
group->addChild(geode);
std::vector<std::string> textList;
textList.push_back("Town");
textList.push_back("City");
textList.push_back("Village");
textList.push_back("River");
textList.push_back("Mountain");
textList.push_back("Road");
textList.push_back("Lake");
unsigned int numLat = 15;
unsigned int numLong = 20;
double latitude = 50.0;
double longitude = 0.0;
double deltaLatitude = 1.0f;
double deltaLongitude = 1.0f;
unsigned int t = 0;
for(unsigned int i = 0; i < numLat; ++i, latitude += deltaLatitude)
{ {
osg::Geode* geode = new osg::Geode; longitude = 0.0;
osgText::FadeText* text = new osgText::FadeText; for(unsigned int j = 0; j < numLong; ++j, ++t, longitude += deltaLongitude)
{
text->setText("One"); geode->addDrawable( createText( ellipsoid, latitude, longitude, 0, textList[t % textList.size()]) );
text->setFont("fonts/arial.ttf"); }
text->setPosition(position);
text->setCharacterSize(300000.0f);
text->setCharacterSizeMode(osgText::Text::OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT);
text->setAutoRotateToScreen(true);
geode->addDrawable(text);
group->addChild(geode);
}
position.z() += 300000.0f;
{
osg::Geode* geode = new osg::Geode;
osgText::FadeText* text = new osgText::FadeText;
text->setText("Two");
text->setFont("fonts/arial.ttf");
text->setPosition(position);
text->setCharacterSize(300000.0f);
text->setCharacterSizeMode(osgText::Text::OBJECT_COORDS_WITH_MAXIMUM_SCREEN_SIZE_CAPPED_BY_FONT_HEIGHT);
text->setAutoRotateToScreen(true);
geode->addDrawable(text);
group->addChild(geode);
} }
return group; return group;