Filter Element List by Revit Z Value

This node takes a list of Revit points (feet, XYZ format), unpacks the Z values, converts to mm, and then filters an input list by a given benchmark value.

So, if you know that 90% of your Grids are set correctly with a -300mm lower Grid Z extent, place -300 in the input benchmark value, and you will get a list of ‘not matching’ elements. This allows quick checking of Grid extents that may be inconsistent.

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Get Grid Extents

This node uses Python and the Revit API to extract the outline object from each Grid element, and then get the minimum and maximum points from those outline objects. These points are delivered in Revit API format: units are feet, comma separated XYZ.