Draft OCA: Difference between revisions

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<languages/>
===Opening===
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<!--T:13-->
This function imports OCA/GCAD files. 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.
{{Docnav
The following OCA objects get imported at the moment:
|[[Draft_SVG|Scalable Vector Graphics .SVG]]
|[[Draft_DAT|Airfoil Data Format .DAT]]
|[[Draft_Workbench|Draft]]
|IconL=
|IconR=
|IconC=Workbench_Draft.svg
}}


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* Lines
{{TOCright}}
* Arcs and Circles
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* Closed areas


==Description== <!--T:8-->
===Importing===


<!--T:16-->
Works the same way as opening but creates the objects in the active document instead of creating a new one.
Draft OCA is a software module used by the [[File:Std_Open.svg|24px]] [[Std_Open|Std Open]], [[File:Std_Import.svg|24px]] [[Std_Import|Std Import]] and [[File:Std_Export.svg|24px]] [[Std_Export|Std Export]] commands to handle the [http://groups.google.com/group/open_cad_format OCA file format].


<!--T:9-->
===Exporting===
The OCA file format is a 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.


==Importing== <!--T:1-->
Objects that can be exported at the moment:


<!--T:2-->
The following OCA objects can be imported:
* Lines
* Arcs and Circles
* Closed areas

==Exporting== <!--T:4-->

<!--T:17-->
The following FreeCAD objects can be exported:
* Lines and wires (polylines)
* Lines and wires (polylines)
* Arcs and circles
* Arcs and circles
* Faces
* Faces


===Preferences===
==Preferences== <!--T:5-->

<!--T:18-->
See [[Import_Export_Preferences|Import Export Preferences]].

==Scripting== <!--T:19-->

<!--T:10-->
See also: [https://freecad.github.io/SourceDoc/ Autogenerated API documentation] and [[FreeCAD Scripting Basics|FreeCAD Scripting Basics]].

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To export objects to OCA use the {{incode|export}} method of the importOCA module.

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{{Code|code=
importOCA.export(exportList, filename)
}}
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<!--T:20-->
* For the Windows OS: use a {{FileName|/}} (forward slash) as the path separator in {{Incode|filename}}.

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Example:

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{{Code|code=
import FreeCAD as App
import Draft
import importOCA

doc = App.newDocument()

polygon1 = Draft.make_polygon(3, radius=500)
polygon2 = Draft.make_polygon(5, radius=1500)

doc.recompute()


objects = [polygon1, polygon2]
The following parameters can be specified in the [[Draft Preferences]] tab (menu Edit -> Preferences -> Draft):
importOCA.export(objects, "/home/user/Pictures/myfile.oca")
}}
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* Import closed areas or not


<!--T:6-->
[[Category:User Documentation]]
{{Docnav
|[[Draft_SVG|Scalable Vector Graphics .SVG]]
|[[Draft_DAT|Airfoil Data Format .DAT]]
|[[Draft_Workbench|Draft]]
|IconL=
|IconR=
|IconC=Workbench_Draft.svg
}}


</translate>
{{languages | {{es|Draft OCA/es}} {{fr|Draft OCA/fr}} {{it|Draft OCA/it}} {{se|Draft OCA/se}} }}
{{Draft Tools navi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}
[[Category:File Formats{{#translation:}}]]

Latest revision as of 08:03, 15 September 2021

Description

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

The OCA file format is a 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

See Import Export Preferences.

Scripting

See also: Autogenerated API documentation and FreeCAD Scripting Basics.

To export objects to OCA use the export method of the importOCA module.

importOCA.export(exportList, filename)
  • For the Windows OS: use a / (forward slash) as the path separator in filename.

Example:

import FreeCAD as App
import Draft
import importOCA

doc = App.newDocument()

polygon1 = Draft.make_polygon(3, radius=500)
polygon2 = Draft.make_polygon(5, radius=1500)

doc.recompute()

objects = [polygon1, polygon2]
importOCA.export(objects, "/home/user/Pictures/myfile.oca")