Either type of Spline curves available in QCAD do not have control vectors. Is this correct or is there a way of showing the control arms associated with each node in the spline?andrew wrote:The spline degree is either 2 (quadratic spline) or 3 (cubic spline). Higher-degree splines exist but are not supported by QCAD or dxflib (and I've never encountered any spline curves with a higher degree than 3 in real life applications).wolfhergang wrote:splineDegree=nControlPoints
However, what you might have read somewhere is that a spline of degree 2 (quadratic) needs at least 3 control points to be defined. A spline of degree 3 (cubic) needs at least 4 control points to be defined.
Spline control arms
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Spline control arms
Re: Spline control arms
Control arms are typically used to control the spline tangency at a control point. This is not supported by QCAD.
Re: Spline control arms
Thanks for your reply. Could you consider it as a future desirable feature?andrew wrote:Control arms are typically used to control the spline tangency at a control point. This is not supported by QCAD.
Thanks also for the other answer. I will order QCAD Pro today.