TrueGrid logo

A Mesh Generator and Pre-Processor for
FEA and CFD Analysis

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