This fixes some DXFs imports where unforunately CAD tools like SolidWorks
randomly decide to mirror circle definitions across the "z" axis (resulting in x or y axis flips in 2d)
Most likely live projection from 3D to 2D drawings introduces this.
However this is DXF specification to describe it so obtusely with vectors for a 2d drawing.
DXF blocks are virtual groups of items.
The insert entity is what actually places all the block contents at a given coordinate.
This should fix importing drawings from professional CAD tools like SolidWorks that will have a good bit of blocks.
There is no guarantee DXF contains $INSUNIT to specify the units of the file as its optional.
This allows the user to specify the expected units via dropdown.
SolidWorks can definitely generate such unit lacking files as an example
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.
Marek Roszko
Jeff Young
jean-pierre charras
Ian McInerney
Seth Hillbrand
Wayne Stambaugh