Using Coordinate Systems and Transform Nodes in VRML
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The document discusses how VRML files use coordinate systems and transformations to position 3D objects in a virtual world. It explains that a Transform node creates a new local coordinate system that can be translated, rotated, and scaled relative to the parent coordinate system. Any shapes built within this new local system will be positioned, oriented, and scaled along with the transformations applied to that coordinate system. The order that translation, rotation, and scaling are applied is important, with the transformations always occurring from bottom to top.
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Using Coordinate Systems and Transform Nodes in VRML
- 1. Prepared By : NURAINI MOHD GHANI
- 3. Prepared By : NURAINI MOHD GHANI XYZ axes and a simple shape XYZ axes and a complex shape
- 8. Prepared By : NURAINI MOHD GHANI World coordinate system New coordinate system, translated 2.0 units in X
- 9. Prepared By : NURAINI MOHD GHANI Shape built in new coordinate system
- 12. Prepared By : NURAINI MOHD GHANI World coordinate system New coordinate system, rotated 30.0 degrees around Z
- 13. Prepared By : NURAINI MOHD GHANI Shape built in new coordinate system
- 15. Prepared By : NURAINI MOHD GHANI X-axis rotation Y-axis rotation
- 16. Prepared By : NURAINI MOHD GHANI Z-axis rotation
- 18. Prepared By : NURAINI MOHD GHANI World coordinate system New coordinate system, scaled by half
- 19. Prepared By : NURAINI MOHD GHANI Shape built in new coordinate system
- 21. Prepared By : NURAINI MOHD GHANI World coordinate system New coordinate system, scaled by half, rotated 30.0 degrees around Z, and translated 2.0 units in X