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Changes between Version 1 and Version 2 of WikiStart/Decimation.html


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Timestamp:
09/16/10 16:16:48 (13 years ago)
Author:
iulian
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  • WikiStart/Decimation.html

    v1 v2  
    22== Simplification of Surface Data == 
    33 
    4 Quadric error metric introduced by Michael Garland and a modified qslim algorithm is used for simplification, in the context of surface data. 
    5 Initial triangles are positively oriented in plane, and an additional constraint is introduced as a penalty in the decimation algorithm, to avoid negatively oriented triangles. This ensures that the surface of the glacier still has a proper representation after decimation. 
     4[http://mgarland.org/research/quadrics.html Quadric error metric] introduced by Michael Garland  and a modified [http://mgarland.org/software/qslim10.html qslim] algorithm is used for simplification, in the context of surface data. This method is now implemented in [http://trac.mcs.anl.gov/projects/fathom/wiki/MeshKit MeshKit] using [http://trac.mcs.anl.gov/projects/ITAPS/wiki/MOAB MOAB].  
    65 
    7 [[Image()]] 
     6Initial triangles are positively oriented in the plane, and an additional constraint is introduced as a penalty in the decimation algorithm, to avoid negatively oriented triangles. This ensures that the surface of the glacier still has a proper representation after decimation. 
     7 
     8In this example, the surface is decimated to 20000 triangles.  
     9 
     10[[Image(DecimatedSurface.jpg)]]