@FitDGN Factory function usage

Hi @cnav, I don't know how the @FitDGN function should work, but the syntax is described in this documentation.

FME Factory and Function Documentation | Functions | @FitDGN

You can call an FME function via the Python fmeobjects.FMEFeature.performFunction method. e.g.

# Shutdown Python Script Example: Perform @FitDGN Function
# Assume that the value of a user parameter called "DestDataset_IGDS"
# is an existing DGN (Bentley MicroStation Design V7) file path.
import fme, fmeobjects
fitDGN = '@FitDGN(%s,MASTER,0)' % fme.macroValues['DestDataset_IGDS']
if fme.status:
    xmin, ymin, xmax, ymax = 0.0, 0.0, 100.0, 100.0
    feature = fmeobjects.FMEFeature()
    feature.addCoordinates([(xmin, ymin), (xmax, ymax)])
    feature.performFunction(fitDGN)

Alternatively, you can also use the FMEFunctionCaller transformer to perform the function without writing a script, if you write the DGN file with the FeatureWriter. e.g. 

Hi @takashi I have tried the script as suggested, received the following error.I wonder if this function is for v7 or v8. I am sending output as V8 DGN file? I have checked the output file it contains data as expected and reads properly in Microstation v8 XM edition. Only issue is data is zoomed out to a different location. So a user who opens the file will see black screen instead of the content.

FME_END_PYTHON: evaluating python script from string...

@FitDGN: Bounding box of feature after shrinkage is: (363000,2673000),(364000,2673500)

IGDS Coordinate Information:

0 UORs per ` ' and 0 ` ' per ` '

Global origin X: -1.70141183460469e+038 Y: -1.70141183460469e+038 Z: -1.70141183460469e+038

One FME Feature coordinate unit is equal to 0 UORs (Master Units used)

Unable to read element in design file `c:\\temp\\ora2dgn\\B29C.9Q' -- ensure file has not be truncated

A fatal error has occurred. Check the logfile above for details

Error executing string `import fme,fmeobjects

fitDGN="@FitDGN(%s,MASTER,0)" % fme.macroValues['OutputDGN']

if fme.status:

xmin = float(fme.macroValues['X1'])

ymin = float(fme.macroValues['Y1'])

xmax = float(fme.macroValues['X2'])

ymax = float(fme.macroValues['Y2'])

feature=fmeobjects.FMEFeature()

feature.addCoordinates([(xmin,ymin),(xmax,ymax)])

feature.performFunction(fitDGN)

'

FME_END_PYTHON failed to execute provided script

FME_END_PYTHON failure

Program Terminating