Geometry query regarding curve

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Permalink Reply by David Rutten on July 21, 2015 at 7:31am

I do not understand. What code where?

Curves can consist of several 'spans', which is mostly a nurbs derived property. Spans tend to be smooth in the interior but they may be less continuous when they connect to other spans. PolyCurves also may have segments, but a parabola is not typically a PolyCurve, it's a conic.

Permalink Reply by narsimha on July 21, 2015 at 8:52am

code means in my c++ code i have segment number variable in curve param class ... i dont know wt is does.. just take a point and return curve param values for ellipse its returning 0 ..i.e segment number is returing 0.

Permalink Reply by David Rutten on July 21, 2015 at 8:56am

Can you post the relevant part of the code?

Permalink Reply by narsimha on July 21, 2015 at 9:01am

its complicated . its using several classes ..... can u tell me parobala will have segments

Permalink Reply by David Rutten on July 21, 2015 at 9:26am

I cannot tell you without the curve or without the code.

Permalink Reply by narsimha on July 21, 2015 at 9:50am

tom i will show ..thanks

Permalink Reply by narsimha on July 22, 2015 at 12:50am

return (-(m_PCurve2->X (v, off2) - m_PCurve1->X (u, off1)) *
m_PCurve2->YP (v, off2) + (m_PCurve2->Y (v, off2) -

Permalink Reply by narsimha on July 22, 2015 at 12:50am

what is this formula for please let me know

Permalink Reply by David Rutten on July 22, 2015 at 5:41am

Since I don't know the types of m_PCurve2, v, off2, u, off1 I cannot tell you anything useful.