7/2/2023 0 Comments Principal curvatures postview![]() The selected surface is analyzed for Gaussian curvature by default. This does not automate finding the inflection points, but it makes it possible to mark them manually. Gives permanent feedback when the radius of curvature is infinite (curvature is zero, the curve is locally flat, for example at inflection points where the curve bulge changes from one side to the other) and cannot be evaluated. Places a point object and the curvature circle or half circles at the evaluated point on a curve. The Gaussian curvature is positive when both half circles point the same way, negative when the circles point opposite ways, and zero if one of the half circles degenerates into a line.The principal curvatures are inverse of the radii of the arcs.The circle with a biggest radius is always orthogonal to the circle with a smallest radius. Every location on a smooth surface has two such circles.The cursor automatically snaps to curve inflection points (where the sign of the curvature changes).Every location on a smooth curve has a circle that best approximates the curve at that location.Maximum and Minimum principal curvature.Surface curvature evaluation at parameter location.The following surface evaluation information displays in the command area: ![]() As you move your cursor, two half-circles display and show you the minimum and maximum curvature at that point on the curve. ![]()
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