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{ "category": "SciPy 2012", "language": "English", "slug": "surface-subdivision-schemes-for-python", "speakers": [ "Stephen McQuay", "William Blattman" ], "tags": [ "visualization" ], "id": 1233, "state": 1, "title": "Surface Subdivision Schemes for Python", "summary": "", "description": "There exist two very powerful geometric surface subdivision schemes that do\nnot yet exist for python users: Catmul-Clark subdivision surfaces, and Nira\nDyn's Butterfly subdivision surface scheme. These schemes are useful in\ncreating C2-continuous (under ideal conditions) surfaces from a control mesh\nof points. The later scheme interpolates the control mesh points, which makes\nit useful for scientific applications.\n\nWe plan on providing some background on the schemes detailing usecases and\nvisualizing the results. We also plan on discussing the various techniques we\nuse to overcome performance bottlenecks (numpy/cython/etc.)\n\n", "quality_notes": "", "copyright_text": "CC BY-SA", "embed": "<object width=\"640\" height=\"390\"><param name=\"movie\" value=\"http://youtube.com/v/ncjybHxXRWg?version=3&amp;hl=en_US\"></param><param name=\"allowFullScreen\" value=\"true\"></param><param name=\"allowscriptaccess\" value=\"always\"></param><embed src=\"http://youtube.com/v/ncjybHxXRWg?version=3&amp;hl=en_US\" type=\"application/x-shockwave-flash\" width=\"640\" height=\"390\" allowscriptaccess=\"always\" allowfullscreen=\"true\"></embed></object>", "thumbnail_url": "http://i3.ytimg.com/vi/ncjybHxXRWg/hqdefault.jpg", "duration": null, "video_ogv_length": null, "video_ogv_url": null, "video_ogv_download_only": false, "video_mp4_length": null, "video_mp4_url": "http://s3.us.archive.org/nextdayvideo/enthought/scipy_2012/Surface_Subdivision_Schemes_fo.mp4?Signature=wjAXp0QjrQuKuGkQ0nmSx5r7DUc%3D&Expires=1346383518&AWSAccessKeyId=FEWGReWX3QbNk0h3", "video_mp4_download_only": false, "video_webm_length": null, "video_webm_url": "", "video_webm_download_only": false, "video_flv_length": null, "video_flv_url": "", "video_flv_download_only": false, "source_url": "http://youtube.com/watch?v=ncjybHxXRWg", "whiteboard": "", "recorded": "2012-07-19", "added": "2012-08-31T16:35:53", "updated": "2014-04-08T20:28:27.125" }