While "Snap-to-Point" feature works quite well on femur, there are areas where local features are not sufficient to reliably detect the desired location
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| Problematic boundary for "Snap-to-Point" |
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| Typical structure of the edges. Local structure is not sufficient to reconstruct a good snapping location. |
To solve this problem I propose to include additional mechanisms, see figure below.
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| "Snap-to-point" would simply snap to a stronger edge within the Snap apperture. This would be incorrect. Instead taking the previous state of the cardinal spline into account, we search for a better snap location. Snap-to Curve would inregrate the edges strength all along the last segment, so the yellow path would be invalidated. And instead more reliable path chosen. |