Draw a BezierCurve in dxf

[kayoot]

Hello

I've got a problem with export to dxf. I need to export bezier curve, i have coordinates of start point, end point ang control points. Unfortunately, on the dxf entiti section there is no it.

Could anyone help me with this ?

THX a lot.


EDIT:

I try to do it by SPLINE but it isn't working...

[andrew]

Code: Select all

// write spline entity
dxf.writeSpline(writer,
    DL_SplineData(degreeOfSpline,
                      numKnots,
                      numCtrl,
                      flags),
        attributes);

// write spline knots (example, might vary in your case):
int k = degreeOfSpline +1;
DL_KnotData kd;
for (int i=1; i<=numKnots; i++) {
        if (i<=k) {
            kd = DL_KnotData(0.0);
        } else if (i<=numKnots-k) {
            kd = DL_KnotData(1.0/(numKnots-2*k+1) * (i-k));
        } else {
            kd = DL_KnotData(1.0);
        }
        dxf.writeKnot(writer, kd);
}

// write spline control points (numCtrl control points):
dxf.writeControlPoint(writer, DL_ControlPointData(x, y, z));
dxf.writeControlPoint(writer, DL_ControlPointData(x, y, z));
...