TY JOUR TI Point Tools of Geometric Modeling, Invariant Relating to Parallel Projection KW geometric modeling; point calculus; parallel projection invariants; coordinate-wise calculation; curves construction; plane excessive parameterization; torso surface JO Geometry & Graphics AU Konopatskiy, E.V. AU Bezditnyi, A.A. PY 2022 IS 9 PB INFRA-M Academic Publishing LLC.