This category includes renderwindows (currently one for OpenGL), renderers (currently only one, for OpenGL-based renderwindows), mappers and classes for navigating in the data. More...
Modules | |
| Mapper Classes | |
| In the MITK rendering concept, Mappers are responsible for actually rendering data onto the screen. | |
| Navigation Control Classes | |
| The classes in this category tell the render (subclass of mitk::BaseRenderer) which slice (subclass mitk::SliceNavigationController) or from which direction (subclass mitk::CameraController) it has to render. | |
| Renderer and RenderWindow Classes | |
| The MITK rendering model resembles the mechisms found in VTK. This section describes the core components for coordinating rendering processes and render windows. | |
Detailed Description
This category includes renderwindows (currently one for OpenGL), renderers (currently only one, for OpenGL-based renderwindows), mappers and classes for navigating in the data.
Rationale and overview
Mappers visualize data objects of a specific classes by creating rendering primitives that interface to the graphics library (e.g., OpenGL, vtk). Renderers organize the rendering process. A Renderer contains a reference to a (sub-) data tree and asks the mappers of the data objects to render the data into the renderwindow it is associated to.
More details can be found in the section on Rendering Concept.
What belongs into this group
Practical issues
Plans for the future
- Abort mechanism
- level-of-detail rendering mechanism
- allow multiple renderers per renderwindow
- modified detection mechanism:
- allow to detect whether a modification of data/property/dislaygeometry /camera requires to re-render. E.g., mark whether a property effects the rendering.
- analyze which type of modification requires which kind of action, e.g.: if the displaygeometry or the color has changed, we do not need to resample an image, but we do need to redraw. The first step is to analyze which types of modifications (e.g., displaygeometry changed, properties changed; can we group these?) and actions exist.
- improved design of navigation controllers, probably more focused on steppers (then on BaseController). Have in mind:
- rotatable slices
- dependent views: e.g., sequence of renderers showing series of consecutive slices (maybe realized as master stepper and dependent offset steppers)
- consider time vs. slice stepping
- use stepper mechanism for additional purposes, e.g., for animating transfer functions
