Resqpy

This release adds the TriMeshStencil class which implements symmetric hexagonal stencils for convoluting tri mesh z values. This is typically used for smoothing a surface represented as a tri mesh.

This patch fixes a bug which would, in certain circumstances, introduce a constant z offset in TriMesh values when reloading a stored TriMesh.

This patch enhances the Polyline interpolated_point() method to make it robust against rounding errors when using a fractional length (f) of 1.0

This patch modified the Surface.set_from_point_set() method to exclude any not-a-number (NaN) points before calling the triangulation function. Previously the presence of a NaN raised an assertion error.

This patch makes visible the explicit control of flange radius as a new argument to the grid surface multi processing wrapper.

The old saucer option for surface flange extension uses a complex computation designed to follow local rim curvature in the original surface when extending. This change adds a much simpler option, activated when the saucer parameter is outside the range 0.0 to 1.0 (but between -90.0 and 90.0). In this case the parameter is interpreted as a flange angle (in degrees, off the average plane of the surface). A positive angle causes the extension to be shifted in the direction of the plane normal vector in the -ve z hemisphere. A negative angle results in a shift along the normal vector in the +ve z hemisphere.