Downloaded from https://www.everyspec.com APPENDIX C MIL-STD-31000A C.9.5.6 Different Annotation Geometry Size (A-AN-DE) Definition: The size of the edges and/or faces associated with a set of annotations in the translated model is significantly different from the size of the matched annotation geometry in the native model. Measurement: The percent change from the total area or length of the native faces or edges to the total area or length of the translated faces or edges. Effects of condition on model-based definition translation:
A significant change of this type indicates that the associated geometry for corresponding annotations is not equivalent and therefore the derivative model is not equivalent. C.9.5.7 Different Annotation Location (A-AN-DL) Definition: The centroid of the annotation presentation curves in the translated model is significantly different than the centroid of the matched annotation presentation curves in the native model. Measurement: The distance between the two centroid locations divided by the diagonal length of the bounding box of the native annotation presentation curves. Effects of condition on model-based definition translation:
If the visual presentation is intended to be equivalent, this difference can indicate a change in its semantic meaning. C.9.5.8 Different Annotation Orientation (A-AN-DO) Definition: The view plane normal for a set of annotations in the translated model is significantly different from the normal of the match annotation view plane in the native model. Measurement: The angle between the two view plane normal vectors. Effects of condition on model-based definition translation: Depending on the type of annotation, this difference can change its semantic meaning. C.9.5.9 Different Annotation Parameter (A-AN-DA) Definition:
The value of a semantic representation parameter for an annotation in the translated model is different than the value of the matched annotation parameter in the native model. Measurement: False if the parameter has a text value and any characters are different. Special consideration may be given for negligible white space character differences. For numerical parameters, it is the percent change from the value of the native parameter to the value of the translated parameter. 147