Working with viewpoints » History » Version 3
Jeremy Gow, 2013-04-09 12:43 PM
| 1 | 1 | Jeremy Gow | h1. Working with viewpoints |
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| 2 | 1 | Jeremy Gow | |
| 3 | 3 | Jeremy Gow | A number of functions are provided to help the user work with viewpoints and viewpoint data. |
| 4 | 1 | Jeremy Gow | |
| 5 | 1 | Jeremy Gow | h2. Inspecting viewpoint values |
| 6 | 1 | Jeremy Gow | |
| 7 | 1 | Jeremy Gow | <code>music-data:composition-viewpoint</code> will return the viewpoint values for a specific composition. For example, for composition 3 of dataset 0, the linked viewpoint <code>'(cpint ioi)</code> has the following values: |
| 8 | 1 | Jeremy Gow | |
| 9 | 1 | Jeremy Gow | <pre> |
| 10 | 1 | Jeremy Gow | CL-USER> (music-data:composition-viewpoint 0 3 '(cpint ioi)) |
| 11 | 1 | Jeremy Gow | ((0 12) (-300 12) (0 12) (-200 12) (-200 24) (0 12) (-100 12) (100 12) (200 12) |
| 12 | 1 | Jeremy Gow | (-200 24) (500 12) (0 12) (0 12) (0 12) (-100 12) (100 12) (200 12) (-700 60) |
| 13 | 1 | Jeremy Gow | (0 12) (0 12) (0 12) (400 12) (0 12) (100 12) (200 12) (0 24) (-700 12) |
| 14 | 1 | Jeremy Gow | (700 24) (0 12) (200 12) (-200 12) (-300 12) (-400 12) (200 12) (-200 12)) |
| 15 | 1 | Jeremy Gow | </pre> |
| 16 | 1 | Jeremy Gow | Similarly, <code>music-data:dataset-viewpoint</code> returns the values for all compositions in a specific dataset, as a list of lists. |