Spline same info but not same shape

[duccoder]

Hi, I use Qcad Pro 3.16.2 to draw 2 same splines on 2 layers, but it seem difference. I don't know why them difference

spline_sames.PNG (13.13 KiB) Viewed 4942 times

[duccoder]

It render same shape on qcad 3.15.* but when open by 3.16.2 or autocad, it not same

[andrew]

Were they both created in QCAD or in another application?

One of the splines (the orange one) uses start and end tangents that differ from defaults. This is not currently supported by QCAD when creating splines. However, if such tangents are stored in the file, they are loaded and the spline is displayed accordingly.

I'd recommend to recreate the orange spline with QCAD.

[duccoder]

Thank Andrew for quick reply, I've found this, I think problem from rotate function (can see by use Modify/Rotate). I've quick write autostart file, you can check this:

Code: Select all

include("scripts/library.js");

var storage = new RMemoryStorage();
var spatialIndex = new RSpatialIndexNavel();
var document = new RDocument(storage, spatialIndex);
var di = new RDocumentInterface(document);

var operation = new RAddObjectsOperation();

var p1 = new RVector(52.08949, 6.319991);
var p2 = new RVector(52.098214, 6.120181);
var p3 = new RVector(55.078156, 3.103479);
var p4 = new RVector(55.277965, 3.094755);

var data = new RSpline();

data.appendFitPoint(p1);
data.appendFitPoint(p2);
data.appendFitPoint(p3);
data.appendFitPoint(p4);

var s = new RSplineEntity(document, new RSplineData(data));
operation.addObject(s);

operation.apply(document);

// problem
s.rotate(deg2rad(-4.040695825910859), new RVector(55.0621, 13.2756));

di.exportFile("C:/tmp/example.dxf", "DXF 2013");

[andrew]

Yes, I can confirm this. Bug report added at:
https://www.qcad.org/bugtracker/index.p ... sk_id=1520

Thanks for your report!