Eyeshot Nurbs Edition provides Nurbs based curve and surface modeling functions. With a growing set of modeling methods, this component includes a state of the art Nurbs formulation.

Key Benefits

• The first NURBS library written in a modern programming language
• NURBS construction and manipulation
• Trimmed surface construction and tessellation
• IGES import

Detailed Feature List in addition to Professional Edition ones

Creation of NURBS curves

• Circles and circular arcs
• Straight line segments

Creation of NURBS surfaces

• Bilinear surfaces and planes
• Cones and cylinders (full or patches)
• Spheres and tori (full or patches)
• General extruded surfaces (TABCYL)
• Ruled surfaces
• Surfaces of revolution (full or partial)

Evaluation of NURBS curves and surfaces

• Compute point and derivatives of arbitrary order on a NURBS curve
• Compute point and partial derivatives of arbitrary order on a NURBS surface
• Compute the surface normal vector at a given point
• Compute curvature on curves and surfaces

B-spline and NURBS basis functions

• Evaluation of rational and non-rational basis functions
• Computation of single or all nonzero functions
• Derivatives of arbitrary order
• Global maximum and maximum in each span

Creation of curves by data fitting

• Global curve interpolation to point data (arbitrary degree)
• Global curve interpolation to point and end derivative data (arbitrary degree)
• Cubic spline curve interpolation

Tessellation

• Triangular tessellation of trimmed surfaces
• Automatic texture coordinates generation
• Curve length calculation
• Surface area calculation

Reverse parameter direction of a curve or surface

Total area and volume calculation of closed surface models

Additional Import

• IGES import