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Using TQL for more specific queries
I am trying to calculate the total area of roofs which are flat (i.e. with sloping roof height of 0). So far, in TQL I input the following:
This returns a number which I assume is the lot size of all buildings which have attibute/detail of slanting roof height. Is it possible to somehow specify this query further so I can input a certain number (to extract the lot size of all roofs with value of 0).
Thanks in advance