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Girdle center mass is used as a center of a model.

2. Red

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curve line calculations

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1. Draw plane parallel to table plane through MIC center: 
   Image Added
   
2. Distance In that plane distance from model center to sectiondiamond out-plane line calculated for all azimuth.
   

   

   	MIC is drawn in red color
   	indicates MIC center
   	indicated Girdle center mass (model center)

3. Minimum radius from step 2.2 selected.
4. Graphics is drawn as deviation from minimum radius.

3. Black

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curve line calculations

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1. Model is projected on table MIC plane:
   Image Removed.

2. Distance from model center to projection out-line calculated for all azimuth.

3. Graphics is drawn as deviation from minimum radius from step 2.3

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