kotschak/qelectrotech-source-mirror
0
0
Fork 0
mirror of https://github.com/qelectrotech/qelectrotech-source-mirror.git synced 2026-10-08 04:44:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix DXF export of circles, arcs and the title block at the right (#1339)

Browse Source 
Circles and arcs: drawArcEllipse() split each curve into quarters and
fitted a circular ARC through a point half way between the curve and its
chord, so every circle came out as a flattened diamond. A circle or an
arc of one is now one exact CIRCLE or ARC. R10 has no ELLIPSE entity, so
a true ellipse is a polyline through the curve, one point every 5
degrees. The export also used a different scale on each axis, which made
round things oval; it now uses one, the largest that fits the sheet.

Title block at the right: the DXF laid the horizontal template out in
the narrow vertical strip, squashing it into the top corner. It is now
laid out horizontally and turned a quarter, as draw() turns the painter.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ispyisail
2026-10-07 08:13:52 +13:00
parent 0708338bce
commit 83f72c95c6
11 changed files with 325 additions and 153 deletions
Download Patch File Download Diff File Expand all files Collapse all files
sources/dxfexport.cpp
+7 -2
View File
@@ -80,8 +80,13 @@ void DxfExport::write(Diagram *diagram, int width, int height,
width -= 2*Diagram::margin;
height -= 2*Diagram::margin;
Createdxf::xScale = Createdxf::sheetWidth / double(width);
Createdxf::yScale = Createdxf::sheetHeight / double(height);
//One scale for both axes, the largest that fits the sheet: two
//scales stretched the drawing and turned every circle into an oval
//(issue #1339).
const double scale = qMin(Createdxf::sheetWidth / double(width),
Createdxf::sheetHeight / double(height));
Createdxf::xScale = scale;
Createdxf::yScale = scale;
Createdxf::dxfBegin(file_path, Layer::all());