Thank You. That worked.
On Fri, Nov 14, 2008 at 7:12 PM, Robert Osfield
<[EMAIL PROTECTED]> wrote:
> HI Henanth,
>
> You code is missing a return from your event handler method when the
> method type required a bool. If you don't handle the event you should
> pass back false, in your case you aren't so the results are undefined
> and most likely are being interpreted as a true with will event
> handlers will detect later on an ignore the already "handled" event.
>
> Robert.
>
> On Fri, Nov 14, 2008 at 1:27 PM, hemanth korrapati
> <[EMAIL PROTECTED]> wrote:
>> hi,
>>
>> I am using an osg code which plots a few points in 3D space. This
>> works fine and I am able to move around the scene with the mouse. But
>> when I add the line "viewer.addEventHandler(new
>> KeyboardEventHandler());" to the code and run it, I cant move the
>> scene/objects (generally we can move the scene by clicking and
>> dragging with the mouse) . It just stays still even if I drag the
>> mouse around. I am pasting the code I am using, below:
>>
>> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>> #include<iostream>
>> #include<vector>
>> #include<string>
>> #include<fstream>
>> #include"global.h"
>> #include"drawables.cpp"
>> #include"ransac.cpp"
>>
>>
>> using namespace std;
>>
>> class KeyboardEventHandler : public osgGA::GUIEventHandler
>> {
>> public:
>> virtual bool handle(const osgGA::GUIEventAdapter&
>> ea,osgGA::GUIActionAdapter&)
>> {
>> }
>> };
>>
>> osg::Camera* createHUD()
>> {
>> osg::Camera* camera = new osg::Camera;
>>
>> camera->setProjectionMatrix(osg::Matrix::ortho2D(0,2560,0,2048));
>>
>> camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
>> camera->setViewMatrix(osg::Matrix::identity());
>>
>> camera->setClearMask(GL_DEPTH_BUFFER_BIT);
>>
>> camera->setRenderOrder(osg::Camera::POST_RENDER);
>>
>> camera->setAllowEventFocus(false);
>>
>>
>> return camera;
>> }
>>
>>
>>
>> int main(int argc,char* argv[])
>> {
>>
>> osgViewer::Viewer viewer;
>> viewer.setCameraManipulator(new osgGA::TrackballManipulator);
>> viewer.addEventHandler(new osgViewer::StatsHandler);
>> viewer.addEventHandler(new KeyboardEventHandler());
>> //this is the line giving problems
>>
>> osg::Group* root=new osg::Group();
>> osg::Geode* geode=new osg::Geode();
>>
>> ifstream infile("data1",ios::in);
>> vector<osg::Vec3> points;
>> double temp1,temp2,temp3;
>> //for(int i=0;i<540000;i++)
>> //infile >> temp1 >> temp2 >> temp3;
>> for(int i=0;i<180;i++)
>> {
>> if(infile >> temp1 >> temp2 >> temp3)
>> points.push_back(osg::Vec3(temp1,temp2,temp3));
>>
>> }
>> osg::Plane plane(osg::Vec3(0,0,1.83),points[90],points[45]);
>> for(int i=0;i<180;i++)
>> {
>> if(i==180)
>> // cout <<
>> "==============================================================" <<
>> endl;
>> double dist=plane.distance(points[i]);
>> if(i<180)
>>
>> root->addChild(drawBox(points[i],0.2,osg::Vec4(1,1,1,1)));
>> //cout << dist<< endl;
>> }
>>
>> osg::Plane plane1(points[60],points[90],points[45]);
>> osg::Vec3 norm=plane1.getNormal();
>> norm.normalize();
>> osg::Vec3Array* vertices=new osg::Vec3Array();
>> vertices->push_back(osg::Vec3(100,-100,0)^norm);
>> vertices->push_back(osg::Vec3(100,100,0)^norm);
>> vertices->push_back(osg::Vec3(-100,100,0)^norm);
>> vertices->push_back(osg::Vec3(-100,-100,0)^norm);
>>
>>
>> // geode->addDrawable(createPolygon(vertices));
>> root->addChild(geode);
>>
>>
>>
>>
>>
>> viewer.setSceneData(root);
>> viewer.run();
>>
>> }
>> _______________________________________________
>> osg-users mailing list
>> [email protected]
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
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