|  | filter (properties) | 
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Name
filter (properties) — A surface filter that uses basic properties
Synopsis
| Content Model | |
| filter ::= ( | |
| Attributes | |
| See the general filterelement documentation. | 
Description
A property filter filters normal surfaces by examining basic topological properties such as orientability and Euler characteristic.
The specific constraints imposed by this filter are specified by its child XML elements. If this filter has several child elements, a surface must satisfy all of the corresponding constraints in order to be accepted by this filter.
   More information about surface filters can be found in the general
   filter element documentation.
  
Children
    The following elements occur in filter for a
    filter by basic properties:
    compact (filter), euler (filter), orbl (filter), realbdry (filter).
   
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