Difference between revisions of "Draft OCA"

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{{GuiCommand
 
{{GuiCommand
 
|Name=Draft OCA
 
|Name=Draft OCA
|MenuLocation=File → Export → Open CAD format (*.oca)
+
|MenuLocation=-
 
|Workbenches=[[Draft Workbench|Draft]]
 
|Workbenches=[[Draft Workbench|Draft]]
|Shortcut=Ctrl+E
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|Shortcut=-
|SeeAlso=[[Draft SVG]], [[Draft DXF]]
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|SeeAlso=-
 
|Empty=1
 
|Empty=1
 
}}
 
}}
  
== Description == <!--T:8-->
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==Description== <!--T:8-->
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.
+
 
 +
<!--T:16-->
 +
Draft OCA is a software module used by the [[File:Std_Open.svg|24px]] [[Std_Open|Std Open]], [[Std_Import|Std Import]] and [[Std_Export|Std Export]] commands to handle the [http://groups.google.com/group/open_cad_format OCA file format].
  
 
<!--T:9-->
 
<!--T:9-->
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.
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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 [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:
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The following OCA objects can be imported:
 
* Lines
 
* Lines
 
* Arcs and Circles
 
* Arcs and Circles
 
* Closed areas
 
* Closed areas
  
== Importing == <!--T:3-->
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==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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<!--T:17-->
Objects that can be exported at the moment:
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The following FreeCAD objects can be exported:
 
* Lines and wires (polylines)
 
* Lines and wires (polylines)
 
* Arcs and circles
 
* Arcs and circles
 
* Faces
 
* Faces
  
== Preferences == <!--T:5-->
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==Preferences== <!--T:5-->
The following parameters can be specified in the [[Draft Preferences]] tab (menu Edit -> Preferences -> Draft):
 
* Import closed areas or not
 
  
== Scripting == <!--T:10-->
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<!--T:18-->
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For more information see: [[Import_Export_Preferences|Import Export Preferences]].
 +
 
 +
==Scripting== <!--T:10-->
 
{{Emphasis|See also:}} [[Draft API]] and [[FreeCAD Scripting Basics]].
 
{{Emphasis|See also:}} [[Draft API]] and [[FreeCAD Scripting Basics]].
  
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{{docnav|[[Draft_SVG|SVG]]|[[Draft_DAT|Airfoil Data Format .DAT]]|[[Draft_Module|Draft Module]]|IconC=Workbench_Draft.svg}}
 
{{docnav|[[Draft_SVG|SVG]]|[[Draft_DAT|Airfoil Data Format .DAT]]|[[Draft_Module|Draft Module]]|IconC=Workbench_Draft.svg}}
  
{{Draft Tools navi}}
 
 
{{Userdocnavi}}
 
 
</translate>
 
</translate>
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{{Draft Tools navi{{#translation:}}}}
 +
{{Userdocnavi{{#translation:}}}}
 +
[[Category:File Formats{{#translation:}}]]
 
{{clear}}
 
{{clear}}

Revision as of 21:10, 8 May 2020

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Draft OCA

Menu location
-
Workbenches
Draft
Default shortcut
-
Introduced in version
-
See also
-

Description

Draft OCA is a software module used by the Std Open.svg Std Open, Std Import and 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")