QCAD.org Forum

My problem was that i was writing the hatch edge using degrees when im supposed to use radians.

DL_HatchEdgeData eData(0.0, 0.0, 100.0, 0.0, M_PI*2, true);

that single line solved my problem, than you very much Andrew.

Maybe im just confused about how im supposed to hatch things....

My code is this: DxfExporter exportador("testingWriting.dxf"); exportador.addEntity(new DxfCircle(0,0,0,100,DL_Attributes())); DL_Attributes generalAttrib = DL_Attributes("0",2,16776960, -1, "BYLAYER"); exportador.addEntity((new DxfHatch(1,true,1,0,"SOLID",generalAttrib))); exportador.addEntity(new ...

Anyone?

Im having some troubles in writing a solid arc hatch, i wrote a single hatch, with a single loop with a single edge all of em with the same attributes and it just doesnt work, any advice?

I need someone to answere me this questions.

Is dxflib still in develop?
when was the first dxflib version released?
why was dxflib created? was a colateral project born from QCAD?

I actually run into a new and even worse problem, Bezier curve definition says that Bezier curves k curve degree must always be equal to n control points... so if i want to draw a Bezier spline with 4+ control points im.... lost?

n= k = 4, so its not dxflib/QCAD compatible?

i did, and you've just saved me probably another 3 days of research about splines in just a min, i really thank you for your time and your wonderfull library, greeting from méxico.

Something wierd is happening to me now, in the bezier curve definition says that splineDegree=nControlPoints, but if i try to draw any spline with degree higher that 3 doesnt work. im testing my writing program using QCAD by the way, it has something to do with QCAD methods? im using the same formul...

Hello again Andrew, in your previous code you wrote this little formula:
kd = DL_KnotData(1.0/(numKnots-2*k+1) * (i-k));

to calculate the knot value in the mid section of the knot array, im reading the document you posted for me but i cant figure out how to assign that "constant", any advise?

// 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...