Spatial nodes category

Created by: portnov

Curves category:

• Adaptive Plot Curve a.k.a Populate Curve

New category - Spatial:

Node	Comment	Essentially done	Correct nesting	Documentation	Dependencies
Vector P Field	Moved from another category	✔	-	✔	none
Random points on mesh	Moved from another category	✔	-	✔	none
🆕 Populate Surface	Generate points on a surface	✔ wanted to add possibility to control points with curvature or stretching factor of the surface decided it is not necessary, in most cases "Adaptive Tesselate" node can be used instead	✔	✔	none
🆕 Populate Solid	Generate points either inside the volume of a solid or on the surface of a solid	✔	✔	✔	FreeCAD
Field Random Probe	Mk2	✔	✔	✔	none
Delaunay 2D	Moved from another category	✔	-	✔	none
Delaunay 2D Cdt	Moved from another category	✔	-	✔	none
Delaunay 3D	Mk2: possibility to skip simplices with too long edges	✔	✔	✔	SciPy
Voronoi 2D	Moved from another category	✔	-	✔	none
Voronoi 3D	Moved from another category	✔	-	✔	SciPy
Voronoi Sphere	Moved from another category	✔	-	✔	SciPy
🆕 Voronoi on Surface	-	✔	✔	✔	Optionally SciPy
🆕 Lloyd 2D	-	✔	✔	✔	none
🆕 Lloyd 3D	bounded by a box or a sphere	✔	✔	✔	SciPy
🆕 Lloyd on Sphere	-	✔	✔	✔	SciPy
🆕 Lloyd on Mesh	-	✔	✔	✔	SciPy
🆕 Lloyd in Solid	Redistribute points either inside the volume of a solid or on the surface of a solid	✔	✔	✔	SciPy and FreeCAD
🆕 Lloyd on Solid Face	-	✔	✔	✔	SciPy and FreeCAD
Convex Hull	Moved from another category	✔	-	✔	none
🆕 Concave Hull (Alpha Shape)	-	✔	✔	✔	SciPy

The following nodes go to Sverchok-Extra (Extra Spatial category) as they give weird results too often:

• 🆕 Voronoi on Mesh
• 🆕 Voronoi on Solid Surface

Preflight checklist

Put an x letter in each brackets when you're done this item:

• Code changes complete.
• Code documentation complete.
• Documentation for users complete (or not required, if user never sees these changes).
• Manual testing done.
• Unit-tests implemented.
• Ready for merge.