#449 Error when saving rounded polyline

[Mike]

I drew a closed polyline rectangle and SavedAs r1.dxf I then modified the rectangle to add round corners using the 'Modify/Round' tool. It created rounding on all the corners apparently ok so I saved this as r2.dxf
When I then reloaded r2.dxf a large arc appeared on the bottom edge.
I have attached both dxf files and a word doc with a screen shot of what I get when I load r2.dxf (just in case you don't get what I get)
I am using v2.0.2 on WinXP

I have only attached r2.dxf as I can't see how to attach more than one file. If you need the others please ask.

[Dongxu Li]

Steps to reproduce:

1, Main menu: Draw -> polyine -> polyline
2, draw 3 straight lines by typing in coordinates from command line widget:
0, 0
100,0
0, 100
0,0
3, Main menu: Modify -> Round
4, select the first line [ (0,0) (100,0) ] , and the third line [ (0,100) (0,0) ] to round
5, save the dxf
6, open the dxf with LibreCAD

expected to see the rounded polyline after step 4.
Actual results, a big arc in place of the first line and the rounding arc.

[Rallaz]

This bug is produced by "Modify -> Round" command because are permited to round the start/end vertex of a opened polyline.

To draw a closed polyline:
First point: 0,0
next point: 100,0
next point: 0,100
next point: (click in "close" button or type "close" in command line)

To draw a opened polyline:
First point: 0,0
next point: 100,0
next point: 0,100
next point: 0,0

Yes, visually are no diferences, but internally diferences are:
Closed: 3 vertex & closed flag set
opened: 4 vertex & closed flag unset

[Rallaz]

Fixed with commit f7871a96af9b15f8e32729002d4d00721f67d3c7

Can round or bevel opened polylines