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Home : Tools & Menus : Palette : Evaluate :
Evaluate > Check modelChecks all, visible, or picked objects for common problems that may prevent data transfer.
 | Previous: Evaluate > Mass properties |
This tool or menu item is used in the following pages.
 | How do I Check objects for modeling problems |
Check only surfaces, only curves, or both. The default is Surfaces.
Check all objects, all visible objects, or picked (active) objects. The default is Visible.
Errors: only show objects that failed one of the checks.
All: show all objects even if they pass the checks.
The default is Errors.
Check for rational geometry.
Check for periodic (closed) objects.
Use this check to find instances where trims have made a single surface look like separate surfaces, which can confuse some CAD software packages.
Check for multi-knots (multiple edit points at the same point in space that may create a sharp corner in a curve or surface).
Report objects with internal tangent discontinuities due to multi-knots.
Check for curves that are not planar. This option only appears when Check is set to Curves or Both.
Report curves and surfaces that are duplicates of, or embedded into other curves and surfaces, within the tolerance given in the text field.
Check for edges (including trimmed edges) shorter than the distance specified in the text field.
Check for curves and surfaces whose interior span/isoparm configuration results inthe length of a span (or the length of both opposing patch segments for surfaces) being smaller than the distance tolerance specified in the text field.
Check for curves and surfaces whose interior span/isoparm configuration results in knots being closer in parameter value than the tolerance specified in the text field.
Note
This check does not report multiple knots for which a separate check already exists (see Multiple Knots above).
Report surfaces that have a radius of curvature smaller than a user-defined value. The smallest radius found on those surfaces will be reported.
Report curves, surface boundaries, or trimmed surface boundaries that contain interior self-intersections. A self-intersection refers to the curve or surface boundary intersecting itself at one or more locations that are not both endpoints.
Report trimmed surfaces containing boundaries that intersect other boundaries on the same surface, within the tolerance supplied in the text field.
Check for objects with a degree higher than the number specified in the text field.
Report curves and surfaces that contain a number of spans exceeding the value specified in the text field.
Report surfaces or planar curves that have more than a user-defined number of inflections (change in curvature sign) over their entire length (or width for surfaces). The maximum number of inflections allowed is entered in the text field (default is 3).
This field only appears when Surface Curvature Waviness is ON. When turned on, it controls the maximum number of inflections per span allowed for a surface to pass the waviness test, in addition to the overall number of inflection permitted (see previous option). The default is 1.
Check for surfaces whose normal's direction is inconsistent with the normal's direction of adjacent surfaces.
Report objects that exceed a user-defined tolerance for positional continuity between adjacent curves or surfaces.
The tolerance value is given by Maximum Gap Distance in the Tolerances Continuity section of 
Preferences > Construction options.
Note
The Topology Distance tolerance (in Preferences > Construction options) must be larger than the Maximum Gap Distance for this check to find gaps.
Report objects that exceed a user-defined tolerance for tangent continuity between adjacent curves or surfaces.
The tolerance value is given by Continuity Angle in the Tolerances Continuity section of Preferences > Construction options.
Report objects that exceed a user-defined tolerance for curvature continuity between adjacent curves or surfaces.
The curvature deviation is calculated as 
.
The tolerance value is given by Continuity Curvature in the Tolerances Continuity section of Preferences > Construction options.
Maximum angle allowed between the tangents (or normals) of objects for them to be included in the G1 continuity test.
Maximum curvature deviation allowed between objects for them to be included in the G2 continuity test.
Note
G0, G1, G2, and Normal Consistency checks are only performed if the maximum distance between the objects is less than the Topology Distance found in Preferences > Construction options.
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