Contouring Examples

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Contouring Examples

• Start with imaginary landscape, then select 40
  points at random off it
• Examples of
• Hand contouring
• Triangulation-based contouring
• Block average contouring
• Surface fitting contouring
• Surface fitting under tension contouring

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Example
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Example
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Spline Example

• http//www.cse.unsw.edu.au/lambert/splines/natcub
  ic.html

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Source Data Map
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Elevations
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Hand Contouring
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Triangulation (pscontour)
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Source Data Map
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Triangulation (pscontour)
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Averaging (nearneighbor)
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Elevations
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Source Data Map
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Spline (surface, Tension 0)
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Spline (surface, Tension 0.35)
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Source Data Map
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Spline (surface, Tension 0.35, 10 ft.
contours)
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1080 ft.
Spline (surface, Tension 0, 20 ft. contours)
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Source Data Map