z_CURVE_FROM_TUBE

• input a mesh , outputs a centered curve within the mesh , even if the topology is highly irregular
• similar to the sidefx labs tool = Labs Straight Skeleton 3d

z_CURVES_FROM_UV_ISLANDS

for each uv island create a line curve aligned by the longest angle or vertical\horizontal . useful for generating tree branch curves from existing low poly trees

z_MASK_TO_LINE

• input blured mask of color channel from an image , output a single polypath line .

z_SORT_BY_LINEAXIS

sorts a line contigously linearly along axis , enforcing a point order on a curved line when sort by axis may skip around