Difference between revisions of "Draft OCA"

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(Removed 'Opening', Changed 'Importing' and 'Exporting'.)
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The [http://groups.google.com/group/open_cad_format OCA file format] is community effort to create a free, simple and open CAD file format. OCA is largely based on the GCAD file format generated from [http://www.gcad3d.org/ gCAD3D]. Both formats can be imported in FreeCAD, and the OCA files exported by FreeCAD can be opened in gCAD3D.
 
The [http://groups.google.com/group/open_cad_format OCA file format] is community effort to create a free, simple and open CAD file format. OCA is largely based on the GCAD file format generated from [http://www.gcad3d.org/ gCAD3D]. Both formats can be imported in FreeCAD, and the OCA files exported by FreeCAD can be opened in gCAD3D.
  
== Opening == <!--T:1-->
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== Importing == <!--T:1-->
  
 
<!--T:2-->
 
<!--T:2-->
The following OCA objects get imported at the moment:
+
The following OCA objects can be imported:
 
* Lines
 
* Lines
 
* Arcs and Circles
 
* Arcs and Circles
 
* Closed areas
 
* Closed areas
  
== Importing == <!--T:3-->
+
== Exporting == <!--T:4-->
Works the same way as opening but places the objects in the active document instead of creating a new one.
 
  
== Exporting == <!--T:4-->
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The following FreeCAD objects can be exported:
Objects that can be exported at the moment:
 
 
* Lines and wires (polylines)
 
* Lines and wires (polylines)
 
* Arcs and circles
 
* Arcs and circles

Revision as of 10:57, 4 March 2020

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Draft OCA

Menu location
File → Export → Open CAD format (*.oca)
Workbenches
Draft
Default shortcut
Ctrl+E
Introduced in version
-
See also
Draft SVG, Draft DXF

Description

Draft OCA is a software module used by the Std Open.svg Std Open, Std Import.svg Std Import and Std Export.svg Std Export commands to handle the OCA file format.

The OCA file format is community effort to create a free, simple and open CAD file format. OCA is largely based on the GCAD file format generated from gCAD3D. Both formats can be imported in FreeCAD, and the OCA files exported by FreeCAD can be opened in gCAD3D.

Importing

The following OCA objects can be imported:

  • Lines
  • Arcs and Circles
  • Closed areas

Exporting

The following FreeCAD objects can be exported:

  • Lines and wires (polylines)
  • Arcs and circles
  • Faces

Preferences

For more information see: Import Export Preferences.

Scripting

See also: Draft API and FreeCAD Scripting Basics.

You can export elements to OCA by using the following function:

importOCA.export(exportList, filename)

Example:

import FreeCAD, Draft, importOCA

p1 = FreeCAD.Vector(0, 0, 0)
p2 = FreeCAD.Vector(1000, 1000, 0)
p3 = FreeCAD.Vector(2200, 1500, 0)
p4 = FreeCAD.Vector(2500, -100, 0)

obj1 = Draft.makeWire([p1, p2, p3, p4])
obj2 = Draft.makeWire([p1, -2.3*p2, -0.8*p3, -1.8*p4])

objects = [obj1, obj2]

importOCA.export(objects, "/home/user/Pictures/myfile.oca")