Sometimes a dxf curve is a "degenerated" bezier curve having only 3 points.
(a control point is at same location as a end point)
This commit fix incorrect import of these curves.
BLOCK elements in DXF are re-usable bits that are useful when editing
the file but should not be shown when importing the model. This skips
all references except those that exist in the default "*Model_Space".
This block is required in each DXF file and cannot be renamed.
Fixes: lp:1790821
* https://bugs.launchpad.net/kicad/+bug/1790821
There is a circular dependency between the GRAPHICS_IMPORTER object and
the GRAPHICS_IMPORT_PLUGIN object which makes sharing the settings in
the GRAPHICS_IMPORTER unwieldy. This fix is a ugly hack that resolves
the issue. The underlying issue will require some major refactoring.
Fixes lp:1821234
https://bugs.launchpad.net/kicad/+bug/1821234
* Do not compile dxf old files.
* import gfx, gal mode: make absolute placement working.
* Import gfx in legacy canvas: use it and make interactive placement working
* Take imported line width in account. Ensure DXF line thickness is OK.
* handling empty files in legacy mode.
jean-pierre charras
Ian McInerney
Seth Hillbrand
Wayne Stambaugh