I am trying to do something which I'm sure is pretty basic but struggling
I've got a public parameter (cellres) which refers to the cell resolution of an output ratser and I'm trying to use this to calculate the number of rows/colums, based on the maximum extents (max_X/max_Y).
I'm struggling to write the python or TCL - essentially I just want to do (max_X / cellres)?
It appears to be just concatenating the two parameters rather than returning a value
Thanks
Ed
Could you please show us the script that you have defined in the scripted parameter?
Takashi
I tried using a TCL expression and used expr(1220000/$FME_MacroValues(cellres))
I've never used TCL before so I suspect I'm doing something entirely wrong
Thanks,
Ed
return expr 1220000/$FME_MacroValues(cellres)]
or, if you want to get a decimal number always:
return uexpr 1220000.0/$FME_MacroValues(cellres)]
See here to learn more about Tcl commands. (https://www.tcl.tk/man/tcl8.5/TclCmd/contents.htm)
return 1220000.0 / float(FME_MacroValuese'cellres'])
Just make sure that cellres <> 0 (goes for TCL too, I assume).
David