Chapter10-Geometry2D.pdf

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X3D Graphics for Web Authors
Chapter 10
Geometry Nodes part III:
Geometry2D
Theorem. For a triangle with a right-angle between
sides a and b, with hypotenuse c, then a 2 + b 2 = c 2
Pythagoras
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Chapter Overview
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Many different geometry nodes
An excellent aspect of X3D is that there are
many different ways to create geometry
Chapter 2, Geometry Primitives
•
Chapter 6, Points, Lines and Polygons
•
Chapter 10, Geometry2D Nodes
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Chapter 13, Triangles and Quadrilaterals
•
These are all handled consistently inside a Shape
node with corresponding Appearance
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Overview: Geometry2D Nodes
Common concepts: simple utility nodes
Geometry2D nodes
Arc2D lines
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ArcClose2D polygonal shape
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Circle2D lines
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Disk2D polygonal shape
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Polypoint2D points
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Rectangle2D polygonal shape
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TriangleSet2D polygonal shapes
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