VTK The Visualization Toolkit Part I Overview and
![VTK: The Visualization Toolkit Part I: Overview and object models March 28, 2001 VTK: The Visualization Toolkit Part I: Overview and object models March 28, 2001](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-1.jpg)
![What is VTK? What is VTK?](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-2.jpg)
![Volume Rendering Software Data Hardware Volume Rendering Software Data Hardware](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-3.jpg)
![Isosurface Extraction Isosurface Extraction](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-4.jpg)
![Vector Field Visualization Vector Field Visualization](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-5.jpg)
![What is VTK? n n n An open source, freely available software system for What is VTK? n n n An open source, freely available software system for](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-6.jpg)
![At a Glance n n n The core of VTK is written entirely in At a Glance n n n The core of VTK is written entirely in](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-7.jpg)
![System Architecture Interpreted Wrapper (Tcl, Java, Python) [ Why? ] • Tcl/Tk shell • System Architecture Interpreted Wrapper (Tcl, Java, Python) [ Why? ] • Tcl/Tk shell •](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-8.jpg)
![Installation (1) Windows 9 x/NT/2000 n Binary: vtk 32 Core, vtk 32 Cpp, vtk Installation (1) Windows 9 x/NT/2000 n Binary: vtk 32 Core, vtk 32 Cpp, vtk](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-9.jpg)
![Installation (2) Unix (alpha, beta, etc) : I have installed a copy on n Installation (2) Unix (alpha, beta, etc) : I have installed a copy on n](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-10.jpg)
![Installation (2. 1) • CIS unix servers will be slow as we do not Installation (2. 1) • CIS unix servers will be slow as we do not](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-11.jpg)
![VTK classes VTK classes](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-12.jpg)
![VTK Object models n Graphics and Visualization Model n n Graphics objects: rendering Visualization VTK Object models n Graphics and Visualization Model n n Graphics objects: rendering Visualization](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-13.jpg)
![Pipeline Execution Direction of ‘update’ Visualization model Source Filter Direction of data flow Render Pipeline Execution Direction of ‘update’ Visualization model Source Filter Direction of data flow Render](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-14.jpg)
![The Graphics Model The purpose is to render the geometry (volume) on the screen The Graphics Model The purpose is to render the geometry (volume) on the screen](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-15.jpg)
![The Graphics Model The purpose is to render the geometry (volume) on the screen The Graphics Model The purpose is to render the geometry (volume) on the screen](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-16.jpg)
![To see is to believe … 1 vtk. Render. Window 2 vtk. Renderer vtk. To see is to believe … 1 vtk. Render. Window 2 vtk. Renderer vtk.](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-17.jpg)
![Example Program Main() { create a window; create a renderer; give the renderer to Example Program Main() { create a window; create a renderer; give the renderer to](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-18.jpg)
![User interaction n n vtk. Render. Window. Interactor – allow the user to interact User interaction n n vtk. Render. Window. Interactor – allow the user to interact](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-19.jpg)
![Go home to do the following… n n Install VTK (in your PC) n Go home to do the following… n n Install VTK (in your PC) n](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-20.jpg)
- Slides: 20
![VTK The Visualization Toolkit Part I Overview and object models March 28 2001 VTK: The Visualization Toolkit Part I: Overview and object models March 28, 2001](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-1.jpg)
VTK: The Visualization Toolkit Part I: Overview and object models March 28, 2001
![What is VTK What is VTK?](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-2.jpg)
What is VTK?
![Volume Rendering Software Data Hardware Volume Rendering Software Data Hardware](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-3.jpg)
Volume Rendering Software Data Hardware
![Isosurface Extraction Isosurface Extraction](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-4.jpg)
Isosurface Extraction
![Vector Field Visualization Vector Field Visualization](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-5.jpg)
Vector Field Visualization
![What is VTK n n n An open source freely available software system for What is VTK? n n n An open source, freely available software system for](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-6.jpg)
What is VTK? n n n An open source, freely available software system for 3 D graphics, image processing, and visualization. Support for hundreds of algorithms in visualization and image processing Object-oriented design with different interpreted language wrapers.
![At a Glance n n n The core of VTK is written entirely in At a Glance n n n The core of VTK is written entirely in](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-7.jpg)
At a Glance n n n The core of VTK is written entirely in C++ Contains 600 existing classes with 325 K lines of code VTK will compile and run on Windows 98/NT, SGI, Linux, Sun, HP, etc. Support Open. GL and Mesa Different interfaces for fast prototyping: Tcl/Tk, Java, and Python Have users all over the world – The beauty of Open Source!
![System Architecture Interpreted Wrapper Tcl Java Python Why TclTk shell System Architecture Interpreted Wrapper (Tcl, Java, Python) [ Why? ] • Tcl/Tk shell •](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-8.jpg)
System Architecture Interpreted Wrapper (Tcl, Java, Python) [ Why? ] • Tcl/Tk shell • Java interpreter • Python interpreter • Tcl/Tk source • Java JDK • Python source C++ core Libraries and includes All class source code (could take hours to (dll and. h files) compile) Or (. a and. h files) Binary Installation: if you will use The classes to build your applicatoin Source code Installation: If you want to extend vtk
![Installation 1 Windows 9 xNT2000 n Binary vtk 32 Core vtk 32 Cpp vtk Installation (1) Windows 9 x/NT/2000 n Binary: vtk 32 Core, vtk 32 Cpp, vtk](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-9.jpg)
Installation (1) Windows 9 x/NT/2000 n Binary: vtk 32 Core, vtk 32 Cpp, vtk 32 Tcl, vtk 32 Java, vtk 32 Python (dll and includes) They will install Tcl/Tk for you (for example) if your PCdoes not have one already. With this installed, you can run their sample programs and write your own C++ application. n Source: You will need VC++ 6. 0 installed too.
![Installation 2 Unix alpha beta etc I have installed a copy on n Installation (2) Unix (alpha, beta, etc) : I have installed a copy on n](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-10.jpg)
Installation (2) Unix (alpha, beta, etc) : I have installed a copy on n /usr/class/cis 788. 14 Q/vtk 3. 2 = path Library: $path/common/lib. VTKCommon. a n $path/graphics/lib. VTKGraphics. a $path/imaging/lib. VTKImaging. a also there are directories ‘patented’ and ‘contrib’ that you might use. Includes: -I$path/common –I$path/graphics –I$path/imaging Check the makefile in $path/graphics/example. Cxx/Makefile
![Installation 2 1 CIS unix servers will be slow as we do not Installation (2. 1) • CIS unix servers will be slow as we do not](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-11.jpg)
Installation (2. 1) • CIS unix servers will be slow as we do not have native Open. GL support. Instead, we use Mesa 3 d. But you can do your labs in any of the CIS labs • Only C++ is supported (not Tcl/Tk at least) • When use the server to run vtk examples, you need to do setenv LD_LIBRARY_PATH /n/gold/1/graphics/Mesa 3. 0/lib • We probably can install a copy on albatross (graphics lab server)
![VTK classes VTK classes](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-12.jpg)
VTK classes
![VTK Object models n Graphics and Visualization Model n n Graphics objects rendering Visualization VTK Object models n Graphics and Visualization Model n n Graphics objects: rendering Visualization](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-13.jpg)
VTK Object models n Graphics and Visualization Model n n Graphics objects: rendering Visualization objects: generating geometry Data Flow System: Pipeline execution Data source Visualizatoin Graphics
![Pipeline Execution Direction of update Visualization model Source Filter Direction of data flow Render Pipeline Execution Direction of ‘update’ Visualization model Source Filter Direction of data flow Render](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-14.jpg)
Pipeline Execution Direction of ‘update’ Visualization model Source Filter Direction of data flow Render Graphics model Mapper Actor
![The Graphics Model The purpose is to render the geometry volume on the screen The Graphics Model The purpose is to render the geometry (volume) on the screen](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-15.jpg)
The Graphics Model The purpose is to render the geometry (volume) on the screen camera Actor screen Light
![The Graphics Model The purpose is to render the geometry volume on the screen The Graphics Model The purpose is to render the geometry (volume) on the screen](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-16.jpg)
The Graphics Model The purpose is to render the geometry (volume) on the screen vtk. Camera vtk. Render. Window. Interactor vtk. Actor vtk. Light • vtk. Property • vtk. Mapper • vtk. Transform vtk. Renderer
![To see is to believe 1 vtk Render Window 2 vtk Renderer vtk To see is to believe … 1 vtk. Render. Window 2 vtk. Renderer vtk.](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-17.jpg)
To see is to believe … 1 vtk. Render. Window 2 vtk. Renderer vtk. Camera vtk. Light vtk. Actor ( property, geometry(mapper), transformation, etc)
![Example Program Main create a window create a renderer give the renderer to Example Program Main() { create a window; create a renderer; give the renderer to](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-18.jpg)
Example Program Main() { create a window; create a renderer; give the renderer to the window; create procedural geometry; create a mapper; give the geometry to the mapper; create an actor; give the mapper to the actor; } give the actor to the renderer; window->render(); Window Renderer Actor Mapper Geometry
![User interaction n n vtk Render Window Interactor allow the user to interact User interaction n n vtk. Render. Window. Interactor – allow the user to interact](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-19.jpg)
User interaction n n vtk. Render. Window. Interactor – allow the user to interact with the graphics objects Try the following keypresses: w: wireframe mode s: surface mode r: reset the transformation 3: toggle stereo button 3: zoom; botton 2: pan; button 1: rotate; c/o: camera mode or object mode j/t: joy stick or tracer ball mode e: exit
![Go home to do the following n n Install VTK in your PC n Go home to do the following… n n Install VTK (in your PC) n](https://slidetodoc.com/presentation_image/3fc4255fe409d66f3c3d49ad26229568/image-20.jpg)
Go home to do the following… n n Install VTK (in your PC) n Run Tcl or C++ examples n Build C++ examples OR Use the VTK installation on beta: n /usr/class/cis 788. 14 Q/vtk 3. 2/ n Copy a couple of examples in graphics/examples. Cxx to your local directory n Modify the makefile there and compile from your local directory n Give it a try!
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