- fixed issue when exporting DXF and not settings the units

- added the posibility to export the Geometry in different DXF formats (previously it was hard coded to the AutoCAD 2010): R12, R2000, R2004, R2007, R2010, R2013, R2018
- fixed the camlib.Geometry.bounds() method such that it is calculated correctly for Geometry objects created in the Geometry Editor

appGUI/preferences/geometry/GeometryExpPrefGroupUI.py

@@ -0,0 +1,45 @@
+from PyQt5 import QtWidgets, QtCore
+
+from appGUI.GUIElements import FCLabel, FCComboBox
+from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
+import gettext
+import appTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+
+class GeometryExpPrefGroupUI(OptionsGroupUI):
+
+    def __init__(self, decimals=4, parent=None):
+        super(GeometryExpPrefGroupUI, self).__init__(self, parent=parent)
+
+        self.setTitle(str(_("Geometry Export")))
+        self.decimals = decimals
+
+        # Plot options
+        self.export_options_label = FCLabel("<b>%s:</b>" % _("Export Options"))
+        self.export_options_label.setToolTip(
+            _("The parameters set here are used in the file exported\n"
+              "when using the File -> Export -> Export DXF menu entry.")
+        )
+        self.layout.addWidget(self.export_options_label)
+
+        grid0 = QtWidgets.QGridLayout()
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+        self.layout.addLayout(grid0)
+
+        # Excellon non-decimal format
+        self.dxf_format_label = FCLabel("%s:" % _("Format"))
+        self.dxf_format_label.setToolTip(
+            _("Autodesk DXF Format used when exporting Geometry as DXF.")
+        )
+
+        self.dxf_format_combo = FCComboBox()
+        self.dxf_format_combo.addItems(['R12', 'R2000', 'R2004', 'R2007', 'R2010', 'R2013', 'R2018'])
+
+        grid0.addWidget(self.dxf_format_label, 0, 0)
+        grid0.addWidget(self.dxf_format_combo, 0, 1)