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.. _view_table_internals:
VIEW Table
==========
The `VIEW`_ entry stores a named view of the model or a paperspace layout. This stored views makes parts of the
drawing or some view points of the model in a CAD applications more accessible. This views have no influence to the
drawing content or to the generated output by exporting PDFs or plotting on paper sheets, they are just for the
convenience of CAD application users.
Using *ezdxf* you have access to the views table by the attribute :attr:`Drawing.views`. The views table itself is
not stored in the entity database, but the table entries are stored in entity database, and can be accessed by its
handle.
DXF R12
-------
.. code-block:: none
0
VIEW
2 <<< name of view
VIEWNAME
70 <<< flags bit-coded: 1st bit -> (0/1 = modelspace/paperspace)
0 <<< modelspace
40 <<< view width in Display Coordinate System (DCS)
20.01
10 <<< view center point in DCS
40.36 <<< x value
20 <<< group code for y value
15.86 <<< y value
41 <<< view height in DCS
17.91
11 <<< view direction from target point, 3D vector
0.0 <<< x value
21 <<< group code for y value
0.0 <<< y value
31 <<< group code for z value
1.0 <<< z value
12 <<< target point in WCS
0.0 <<< x value
22 <<< group code for y value
0.0 <<< y value
32 <<< group code for z value
0.0 <<< z value
42 <<< lens (focal) length
50.0 <<< 50mm
43 <<< front clipping plane, offset from target
0.0
44 <<< back clipping plane, offset from target
0.0
50 <<< twist angle
0.0
71 <<< view mode
0
.. seealso::
:ref:`Coordinate Systems`
DXF R2000+
----------
Mostly the same structure as DXF R12, but with handle, owner tag and subclass markers.
.. code-block:: none
0 <<< adding the VIEW table head, just for information
TABLE
2 <<< table name
VIEW
5 <<< handle of table, see owner tag of VIEW table entry
37C
330 <<< owner tag of table, always #0
0
100 <<< subclass marker
AcDbSymbolTable
70 <<< VIEW table (max.) count, not reliable (ignore)
9
0 <<< first VIEW table entry
VIEW
5 <<< handle
3EA
330 <<< owner, the VIEW table is the owner of the VIEW entry
37C <<< handle of the VIEW table
100 <<< subclass marker
AcDbSymbolTableRecord
100 <<< subclass marker
AcDbViewTableRecord
2 <<< view name, from here all the same as DXF R12
VIEWNAME
70
0
40
20.01
10
40.36
20
15.86
41
17.91
11
0.0
21
0.0
31
1.0
12
0.0
22
0.0
32
0.0
42
50.0
43
0.0
44
0.0
50
0.0
71
0
281 <<< render mode 0-6 (... too much options)
0 <<< 0= 2D optimized (classic 2D)
72 <<< UCS associated (0/1 = no/yes)
0 <<< 0 = no
DXF R2000+ supports additional features in the VIEW entry, see the `VIEW`_ table reference provided by Autodesk.
.. _VIEW: http://help.autodesk.com/view/OARX/2018/ENU/?guid=GUID-CF3094AB-ECA9-43C1-8075-7791AC84F97C
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