2012

Property Names
After the property data is extracted, the default property names are used as
the column labels in the data grid (example: Width, Length, Area, and so on).
You can change these property names so that column labels are replaced with
a name you specify. For example, if you extracted the length property of lines,
but the column label needs to indicate the data refers to distance, you can
change Length to Distance on the Display Name column on the Select Properties
page.
The display name for the length
property for polylines is renamed
Distance.
Property Data and Unit Settings
If you select multiple drawings as the data source, and the unit setting is not
the same in all the drawings, a message displays that there is a mismatch of
drawing units. In this situation, the current drawing's unit settings are used
for converting the numerical value of properties.
For example, if the current drawing’s unit setting is set to inches, and another
drawing’s unit setting is set to millimeters, the extracted numerical data is
automatically converted to inches. This happens even if the current drawing
is not included in the data source.
Property Types
Each property value is treated as either text or numerical data. For example,
properties such as radius or length, are treated as numerical data. Attribute
numerical values are treated as text. This is important to consider when using
formula columns to perform arithmetic functions on extracted data.
Non-Uniformly Scaled Blocks
Objects in blocks that were not scaled uniformly cannot be extracted because
the numerical values may not be correct or useful. For example, if a circle is
in a block that was inserted with a non-uniform scale factor, the object is no
longer a true circle.
A dialog box will display during the extraction that indicates blocks were
found that were not uniformly scaled, and the objects within those blocks are
not included in the extraction.
Select Objects for Data Extraction | 1979