Lecture 3 January 16, 2020 The Visualization Toolkit Open source - - PowerPoint PPT Presentation

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Lecture 3 January 16, 2020 The Visualization Toolkit Open source - - PowerPoint PPT Presentation

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CS530 - Spring 2020 Introduction to Scientific Visualization Lecture 3 January 16, 2020 The Visualization Toolkit Open source library for Visualization: Mostly sciviz, some infoviz Computer Graphics Imaging Written in C++ Supports Python

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CS530 - Spring 2020

Introduction to Scientific Visualization

Lecture

January 16, 2020

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

The Visualization Toolkit

Open source library for

Visualization: Mostly sciviz, some infoviz Computer Graphics Imaging

Written in C++ Supports Python (via wrapper)

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Outline

Visualization pipeline Internal data representation Examples

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Object-Oriented Design

OO visualization system Object models properties of entity

State: Attributes (variables) Behavior: Operations (methods)

Inheritance: derive object from another

Add properties Overload (specialize) methods Base / derived class (abstract class)

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Outline

Visualization pipeline Internal data representation Examples

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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Source

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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Source Filter(s)

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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Source Filter(s) Mapper

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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Source Filter(s) Mapper Actor

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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Source Filter(s) Mapper Actor Renderer

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

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Source Filter(s) Mapper Actor Renderer Render Window

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Filter(s) Mapper Actor Renderer Render Window Source

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Mapper Actor Renderer Render Window Filter(s) Source

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Source Filter(s) Mapper Actor Renderer Render Window

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Source Filter(s) Mapper Actor Renderer Render Window

  • VTK pipeline connection syntax:

(1) Receiver.SetInputConnection(Supplier.GetOutputPort()) (2) Receiver.SetInputData(Supplier.GetOutput())

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Source Filter(s) Mapper Actor Renderer Render Window

  • VTK pipeline connection syntax:

(1) Receiver.SetInputConnection(Supplier.GetOutputPort()) (2) Receiver.SetInputData(Supplier.GetOutput())

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Source Filter(s) Mapper Actor Renderer Render Window

  • VTK pipeline connection syntax:

(1) Receiver.SetInputConnection(Supplier.GetOutputPort()) (2) Receiver.SetInputData(Supplier.GetOutput())

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Source Filter(s) Mapper Actor Renderer Render Window

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Source Filter(s) Actor Renderer Render Window Mapper

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Renderer Render Window Source Filter(s) Mapper Actor

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Renderer Render Window Source Filter(s) Mapper Actor

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Render Window Source Filter(s) Mapper Actor Renderer

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Render Window Source Filter(s) Mapper Actor Renderer

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Source Filter(s) Mapper Actor Renderer Render Window

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Source Filter(s) Mapper Actor Renderer Render Window

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Source Filter(s) Mapper Actor Renderer Render Window Interactor

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Source Filter(s) Mapper Actor Renderer Render Window Interactor

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Rendering Pipeline in VTK

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Rendering Pipeline in VTK

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  • Rendering Pipeline in VTK

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  • Rendering Pipeline in VTK

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  • Rendering Pipeline in VTK

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  • Rendering Pipeline in VTK

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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  • Rendering Pipeline in VTK

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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  • Rendering Pipeline in VTK

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  • render_demo

Rendering Pipeline in VTK

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

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Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

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Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

01/16/2020

Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

28

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CS530 / Spring 2020 : Introduction to Scientific Visualization.

  • 03. VTK

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Visualization Pipeline

Implicit control of execution (lazy evaluation): algorithms are only (re)executed when needed

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A B D E C F G

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Outline

Visualization pipeline Internal data representation Examples

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Cell Types

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Cell Types

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Cell Types

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Cell Types

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Cell Types

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Data Attributes

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 a11 a12 a13 a21 a22 a23 a31 a32 a33  

  u v w     u v w   , u2 + v2 + w2 = 1

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Dataset Types

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Dataset Hierarchy

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Dataset Hierarchy

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Dataset Hierarchy

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Dataset Hierarchy

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Dataset Hierarchy

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Dataset Hierarchy

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Dataset Hierarchy

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  • 03. VTK

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Outline

Visualization pipeline Internal data representation Examples

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Demos

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Many examples available at:

https://lorensen.github.io/VTKExamples/site/Python/

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Additional References

VTK Wiki http://www.vtk.org/Wiki/VTK VTK Tutorial

in source code under Examples/Tutorial

VTK Examples

in source code under Examples/, primarily VisualizationAlgorithms, Rendering,

Graphics, Geometric Modeling

VTK User’s Guide

Kitware Inc., ISBN 1-930934-0804

The Visualization Toolkit

An object-oriented Approach to 3D Graphics,

3rd edition, W. Schroeder, K. Martin, B. Lorensen, Kitware

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