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The '''Schema Window''' is used to organize the attributes of a vector layer. Users can add, r…'

2009-11-16T01:13:17Z

Created page with ''''Back to''' List of Functions page || New User Guide Index page <hr /> The '''Schema Window''' is used to organize the attributes of a vector layer. Users can add, r…'

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The '''Schema Window''' is used to organize the attributes of a vector layer. Users can add, remove, rename and organize attributes.

To open the '''Schema Window''' click on the follow icon [[File:View_edit_schema.jpg]] on the [[Layer Menu]]. It is possible tro access the '''Schema Window''' by clicking on the corresponding icon in the [[View Edit Attributes|Attribute Window]]

This is the '''Schema Window'''

[[File:schema.jpg]]

To work with the Schema Window make sure that the layer is selectable.

Use the [[File:Schema_window_plus.jpg]] or the [[File:Schema_window_minus.jpg]] tools to add or to remove an attribute from the list. The arrows below are used to move up/down an attribute in the list

The list is devided in two columns:
* '''Field name''' to write the name of the attribute
* '''Data Type''' to define the type of the attribute. It is possible to define in OpenJUMP these following field types:
** ''Integer '' Type:numeric. The whole number can be positive or negative, for a maximum of 38 digits
** ''Double '' Type: numeric. Similar to ''Integer'', this field can have decimal numbers
** ''String'' Type: Text
** ''Date'' Type: Date
** ''Geometry'' (used in spatial database like SQL)
** ''Object'' (used in spatial database like SQL)

It is possible to change the type of attribute, from ''Integer'' to ''String'', for instance, in the '''Data Type''' field. Some data conversion would be not accepted because of the data format (see VIVID SOLUTIONs, Jump Workbench User's Guide, page 22). The ''Force Invalid Conversion to Null'' option will set the data which cannot be converted to null (0)

Click on ''Apply Changes'' to save the modification that you have done on the attributes.

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View Edit Schema - Revision history

Mentaer: Created page with ''''Back to''' List of Functions page || New User Guide Index page The '''Schema Window''' is used to organize the attributes of a vector layer. Users can add, r…'

Mentaer: Created page with ''''Back to''' List of Functions page || New User Guide Index page
The '''Schema Window''' is used to organize the attributes of a vector layer. Users can add, r…'