When running xRC or xACT-3D, the $X and $Y locations of the parasitics can be specified by adding the keywords :
-RLOCATION for resistor locations.
-CLOCATION for capacitance locations.
Normally the locations are specified in the units( database units / precession), which is typically microns.
To specify a different unit for describing locations, the keyword :
-COORDSCALE Value ,can be used with the PEX NETLIST command. Where;
-Value is a scaling factor to report the coordinates in.
-If value is reported to be 1, coordinates will be reported in meters.
-If value is reported to be 1e-6, coordinates will be reported in microns.
An example would be :
PEX NETLIST "test.dspf" DSPF SOURCENAMES RWIDTH RLAYER RLOCATION CLOCATION COORDSCALE 1e-6