Geo-transform Extension
Version 13 (Nils Peters, 09/28/2010 11:19 pm)
| 1 | 1 | h1. Geo-transform Extension |
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| 3 | 1 | describe a standard set of geometry matrix transforms, as found in computer graphics and 3D modelling: |
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| 4 | 1 | http://en.wikipedia.org/wiki/Affine_transformation |
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| 5 | 1 | ||
| 6 | 1 | transform a (set of) point(s) by use of a geometry matrix. |
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| 7 | 2 | Jan Schacher | common operations: |
| 8 | 6 | Jan Schacher | |
| 9 | 1 | * translate |
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| 10 | 1 | * rotate |
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| 11 | 1 | * scale |
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| 12 | 1 | * shear |
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| 13 | 6 | Jan Schacher | |
| 14 | 5 | Jan Schacher | these operations are non commutable, order *_is_* important. |
| 15 | 5 | Jan Schacher | |
| 16 | 10 | Jan Schacher | transmit either the factors controlling the individual transforms: |
| 17 | 10 | Jan Schacher | |
| 18 | 10 | Jan Schacher | <pre> |
| 19 | 10 | Jan Schacher | /translate 0.0 0.0 0.0 |
| 20 | 10 | Jan Schacher | /rotate 0.0 0.0 90.0 |
| 21 | 10 | Jan Schacher | /scale 1.0 1.0 1.0 |
| 22 | 10 | Jan Schacher | /shear 0.0 0.0 0.0 0.0 0.0 0.0 |
| 23 | 10 | Jan Schacher | </pre> |
| 24 | 10 | Jan Schacher | |
| 25 | 11 | Jan Schacher | or the entire matrix, in specific matrix format (tbd.) |
| 26 | 8 | Jan Schacher | |
| 27 | 8 | Jan Schacher | |
| 28 | 8 | Jan Schacher | |
| 29 | 7 | Jan Schacher | _______________________________ |
| 30 | 7 | Jan Schacher | |
| 31 | 7 | Jan Schacher | h2. Example Implementations: |
| 32 | 5 | Jan Schacher | |
| 33 | 13 | Nils Peters | Nils Peters: jmod.scene3D for Jamoma, "github repository":http://github.com/Nilson/ViMiC-and-friends/tree/master/scene3D/ |
| 34 | 12 | Nils Peters | Jasch: 3Dmatrix External for MaxMSP, "jasch objects site":http://www.jasch.ch/dl |