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CAD tip # 7916:

Question CAD
% platform category

Searching for hatches with missing Area property.

AutoCAD drawings may contain hatches which - mostly due to the loss of associativity - do not have the "Area" property and so you cannot use them to summarize the total area. For area calculations you will need to fix them first - reconstruct their boundary curve and re-create the hatch.

To identify such complaining hatches, we made a LISP utility SelHatch0 - it selects all hatches that do not contain the property Area - so e.g. the Properties windows doesn't display the area of such hatch object.

You can download the SelHatch0 utility from www.cadstudio.cz/download, laod it with APPLOAD and run it with the command SELHATCH0. The complaining hatches will be pre-selected for editing.

ACAD

* CAD

15.4.2011 2796x

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applies to: AutoCAD ·

See also:
Tip 9149:	Total area of selected regions (by layer)
Tip 7648:	Area not displayed for some boundaries or hatches.
Tip 6031:	AutoCAD: Do you really want to do this?
Tip 5387:	Automatic area label - acreage of the selected object.
Tip 3960:	How to make voids (islands) in hatch areas?

Selected tip: The Scale lineweights box is grayed. How to scale plotted linewidths?

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