| Entity |
Description |
| Arc |
Defined by the Three Point Arc method, the entity has limited
power within the overall structure of PolyCAD as it can only
be converted to a polyline. Its main purpose is the support
of drawing file translations and the generation of basic outline
geometry for CFD meshing tools. |
| BSpline |
A curve defined using the standard BSpline definition based
on the capabilities of the Polyline entity. The curve supports
the non-uniform knot vector but not the rational capabilities
of NURBS. However, curves developed interactively remain uniform.
The entity can extrude a BSpline Surface though the loft command
and two BSpline curves can be used to produce a Ruled surface. |
| Circle |
Defines a circle on a location plane. Its main purpose is
the support of drawing file translations and the generation
of basic outline geometry for CFD meshing tools. The circle
and location plane can be interactively manipulated. |
| Cubic Spline |
A Cubic Spline curve which can be used to fit to point data
and can be converted to a Polyline. |
| Interpolating Cubic BSpline |
|
| IntelliCurve |
|
| Polyline |
A Polyline is a geometric object defined by a set of points
with successive pairs being connected by lines. Polylines are
one of the foundation entities within PolyCAD as many of the
curves representations are based on this entity. |
| Polyline List |
The Polyline List entity groups together polyline to assist
the represent components such as hull or compartment sections.
The entity features many tools which process all Polylines in
one group, changing the number of points or polylines to suit
the resolution of the intended application. |
