TrueGrid® Geometry
TrueGrid® can use existing geometry from solids modelers and CAD/CAM systems via the IGES format, polygonal data, or scattered data. TrueGrid® also has an extensive geometry engine. The geometry from these different sources can be mixed in any way to form the required geometric model. For example, a smooth trimmed NURBS surface from a solids modeler can be combined with a non-smooth polygonal surface to form a single composite surface.
TrueGrid®'s Geometry Library Includes:
- Planes, spheres, cylinders, ellipsoids, cones, and tori
- 2D and 3D lines, polygonal curves, and arcs
- 2D and 3D cubic spline and NURBS curves
- 2D and 3D curves by algebraic functions
- 3D curves composed of edges of surfaces
- 3D curves from the intersection of surfaces
- Curves projected onto surfaces
- Concatenation of any set of 3D curves
- Curves of interpolation
- Lofted curves
- Surface edges and contours
- Surfaces of revolution
- Ruled, swept, and pipe surfaces
- Surfaces blended from 3 or 4 curves
- Cubic spline and NURBS surfaces
- Mesh and polygon surfaces including STL
- Combination of surfaces to form composites
- Surfaces by algebraic functions
- General transformations and normal offsets can be applied to the geometry