 defines IGESConicArc, Type <104> Form <03> in package IGESGeom A conic arc is a bounded connected portion of a parent conic curve which consists of more than one point. The parent conic curve is either an ellipse, a parabola, or a hyperbola. The definition space coordinate system is always chosen so that the conic arc lies in a plane either coincident with or parallel to XT, YT plane. Within such a plane a conic is defined by the six coefficients in the following equation. A*XT^2 + B*XT*YT + C*YT^2 + D*XT + E*YT + F = 0 More...
