FGFS-4.1/OpenSceneGraph
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Changed the slide coordinates system so that the bottom left hand corner of the

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slide is 0,0,0 and the top right is 1,1,0, and the eye point is at the
appex of a frustum at x,y,1.
This commit is contained in:
Robert Osfield
2003-11-04 15:07:42 +00:00
parent bbc55c14fd
commit 8ed0f3ea95
3 changed files with 54 additions and 21 deletions
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40
examples/slideshow3D/ReaderWriterXML.cpp
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@@ -228,16 +228,42 @@ void ReaderWriterSS3D::parseModel(SlideShowConstructor& constructor, xmlDocPtr d
else std::cout<<"Parser error - coordinate_frame=\""<<str<<"\" unrecongonized value"<<std::endl;
}
if (getProperty(cur, "position", str))
if (coordinate_frame==SlideShowConstructor::SLIDE)
{
bool fail = false;
if (str=="center") position.set(0.0f,1.0f,0.0f);
else if (str=="eye") position.set(0.0f,0.0f,0.0f);
else if (!read(str,position)) fail = true;
position.set(0.5,0.5,0.0);
if (fail) std::cout<<"Parser error - position=\""<<str<<"\" unrecongonized value"<<std::endl;
else std::cout<<"Read position="<<position<<std::endl;
if (getProperty(cur, "position", str))
{
osg::Vec2 vec2;
osg::Vec3 vec3;
bool fail = false;
if (str=="center") position.set(0.5f,.5f,0.0f);
else if (str=="eye") position.set(0.0f,0.0f,1.0f);
else if (read(str,vec3)) position = vec3;
else if (read(str,vec2)) position.set(vec3.x(),vec3.y(),0.0f);
else fail = true;
if (fail) std::cout<<"Parser error - position=\""<<str<<"\" unrecongonized value"<<std::endl;
else std::cout<<"Read position="<<position<<std::endl;
}
}
else // coordinate_frame==SlideShowConstructor::MODEL
{
position.set(0.0,0.0,0.0);
if (getProperty(cur, "position", str))
{
bool fail = false;
if (str=="center") position.set(0.0f,1.0f,0.0f);
else if (str=="eye") position.set(0.0f,0.0f,0.0f);
else if (!read(str,position)) fail = true;
if (fail) std::cout<<"Parser error - position=\""<<str<<"\" unrecongonized value"<<std::endl;
else std::cout<<"Read position="<<position<<std::endl;
}
}
if (getProperty(cur, "scale", scale))
{