Visualization Techniques: Basic Scalar Field

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Visualization TechniquesBasic Scalar Field
Day 2
Raphael Grasset
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Topics

• Color Mapping
• Contour
• Basic Computer Graphics
• Isosurfaces Rendering

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Visualization Pipeline

• From Raw Data to Data to Visualize

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Classification

• Different techniques for different attributes
• Scalar Visualization Techniques
• Vector Visualization Techniques
• Tensor Visualization Techniques
• Remark Dimensionality of the structure can be
  1D, 2D, 3D ( of Attributes)

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Classification

• Different techniques for different attributes
• Scalar Visualization Techniques
• Color Mapping
• Contour
• Isosurfaces
• Vector Visualization Techniques
• Tensor Visualization Techniques

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Colour Mapping
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Color Data Model?

• Previously presented perception of color
• Now need a Data Model for the color
• Color Data Model representation of the color to
  a format understandable by the computer
• Some Color Models
• RGB
• HSV
• ..

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More examples
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Basic Graphics Rendering

• Lighting, surface, shading

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Summary

• Scalar Field Technique
• Color Mapping Scalar Value to Color
• Contouring Scalar variation to Color
• Isosurfaces