FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Addition of text to default presentation.

Browse Source
This commit is contained in:
Robert Osfield 2003-06-25 22:11:12 +00:00
parent 3f23a430fb
commit 5bf9be4473
1 changed files with 68 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

87
examples/osgslideshow/DefaultPresentation.cpp
View File

@ -6,6 +6,9 @@
#include <osg/Quat>
#include <osg/Geometry>
#include <osg/Geode>
#include <osg/PolygonOffset>
#include <osgText/Text>
osg::MatrixTransform* createPositionedAndScaledModel(osg::Node* model,const osg::Vec3& pos, float radius, osg::Quat rotation)
{
@ -24,6 +27,32 @@ osg::MatrixTransform* createPositionedAndScaledModel(osg::Node* model,const osg:
return transform;
}
osg::Vec4 layoutColor(1.0f,1.0f,1.0f,1.0f);
float layoutCharacterSize = 50.0f;
std::string fontStr("fonts/arial.ttf");
osg::Geode* createText(osg::Vec3& cursor,const std::string& str)
{
osg::Geode* geode = new osg::Geode;
osgText::Text* text = new osgText::Text;
text->setFont(fontStr);
text->setColor(layoutColor);
text->setCharacterSize(layoutCharacterSize);
text->setAxisAlignment(osgText::Text::XZ_PLANE);
text->setPosition(cursor);
text->setText(str);
osg::BoundingBox bb = text->getBound();
cursor.z() = bb.zMin()-layoutCharacterSize;
geode->addDrawable(text);
return geode;
}
osg::Node* createDefaultPresentation()
{
@ -39,7 +68,12 @@ osg::Node* createDefaultPresentation()
osg::Geode* background = new osg::Geode;
background->getOrCreateStateSet()->setTextureAttributeAndModes(0,
osg::StateSet* backgroundStateSet = background->getOrCreateStateSet();
backgroundStateSet->setAttributeAndModes(
new osg::PolygonOffset(1.0f,1.0f),
osg::StateAttribute::ON);
backgroundStateSet->setTextureAttributeAndModes(0,
new osg::Texture2D(osgDB::readImageFile("lz.rgb")),
osg::StateAttribute::ON);
@ -57,43 +91,56 @@ osg::Node* createDefaultPresentation()
osg::Switch* slide = new osg::Switch;
slide->setName("Slide 0");
osg::Vec3 cursor(width*0.25f,0.0f,height*.75f);
osg::Group* layer_0 = new osg::Group;
{
osg::Group* group = new osg::Group;
group->setName("Layer 0");
group->addChild(background);
layer_0->setName("Layer 0");
layer_0->addChild(background);
layer_0->addChild(createText(cursor,"The is layer 0"));
slide->addChild(layer_0);
}
slide->addChild(group);
osg::Group* layer_1 = new osg::Group;
{
layer_1->setName("Layer 1");
layer_1->addChild(layer_0);
layer_1->addChild(createText(cursor,"The is layer 1"));
slide->addChild(layer_1);
}
osg::Group* layer_2 = new osg::Group;
{
layer_2->setName("Layer 2");
layer_2->addChild(layer_1);
layer_2->addChild(createText(cursor,"The is layer 2\nWe can have multiple lines of text..."));
slide->addChild(layer_2);
}
{
osg::Group* group = new osg::Group;
group->setName("Layer 1");
osg::Group* layer_3 = new osg::Group;
layer_3->setName("Layer 3");
group->addChild(background2);
layer_3->addChild(layer_2);
slide->addChild(group);
}
layer_3->addChild(createText(cursor,"The is layer 3, with cow.osg"));
{
osg::Group* group = new osg::Group;
group->setName("Layer 2");
group->addChild(background);
group->addChild(createPositionedAndScaledModel(osgDB::readNodeFile("cow.osg"),
osg::Vec3(600.0f,0.0f,600.0f),500.0f,
layer_3->addChild(createPositionedAndScaledModel(osgDB::readNodeFile("cow.osg"),
osg::Vec3(600.0f,0.0f,300.0f),500.0f,
osg::Quat()));
slide->addChild(group);
slide->addChild(layer_3);
}
presentation->addChild(slide);
}
{
{
osg::Switch* slide = new osg::Switch;
slide->setName("Slide 1");