<DIV><FONT face=Arial size=2>Hi,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I want to display the contour of a segmented object in Axial,Sagittal and Coronal Views using igstk.</FONT></DIV> <DIV><FONT face=Arial size=2>I saw there are implemented in IGSTK sandbox some classes that start with Contour but they suport only mesh representation and also there is no documentation how to use them, and what goes were.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Therefore I tried to implement my own classes.</FONT></DIV> <DIV><FONT face=Arial size=2>I wanted to display a second transparent slice(above the CT data) that shows a rasterized contour rather than a 3d object.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>So I wrote my own SpatialObject and SpatialObjectRepresentation.</FONT></DIV> <DIV><FONT face=Arial size=2>My
workflow goes like this:</FONT></DIV> <DIV><FONT face=Arial size=2>1.Create an empty 3D image(vtk or itk) that has the same dimension like CTSpatialObject internal image data.</FONT></DIV> <DIV><FONT face=Arial size=2>2.Draw my countours inside this image</FONT></DIV> <DIV><FONT face=Arial size=2>3.Pass the image to my SpatialObject in a similar fashion with CTImageSpatialObject.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>My problem is the <FONT size=2>RequestGetITKImage() with afferent event I<FONT size=2>TKImageModifiedEvent is not fully implemented so I used </FONT></FONT></FONT><FONT face=Arial size=2> RequestGetVTKImage() instead and then get the dimensions,spacing from the vtk image and create a new itk image.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>My questions are </FONT></DIV> <DIV><FONT face=Arial size=2>1.How can I display contours in
igstk(the book offers no clue on how I can do this)?</FONT></DIV> <DIV><FONT face=Arial size=2>2.Why the class has a RequestGetITKImage() and no event ITKImageModifiedEvent?</FONT></DIV> <DIV><FONT face=Arial size=2>3.What is the reason behind this very complicated way of passing image data between classes?</FONT></DIV> <DIV><FONT face=Arial size=2>4.Is isgtk keeping an internal copy of the 3d data in each class?</FONT></DIV> <DIV><FONT face=Arial size=2>5.How a user is supposed to use correctly an Igstk component(methods,event,states-look in constructor for allowed requests, look for allowed events)?</FONT></DIV> <DIV><FONT size=+0> </DIV> <DIV align=left></FONT><FONT face=Arial size=2>Teo</FONT></DIV><p> 
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