Two different results for the same Stress output in python

[frztrb]

Hi All

when I use this code after my analysis , I only can get the results on integration points

myViewport.odbDisplay.setPrimaryVariable(field=stress,outputPosition=INTEGRATION_POINT,refinement=(INVARIANT, 'Mises'))



but from this one the stresses are available on all options :


field.getSubset(region=elements1,position=CENTROID)

I need to use the first one because I want to print the results on tiff


also I have another problem with sessionPrinttoFile() that i get windows error whether the destination folder can not be found, (whaatever I change the directory to ) , or it says permission denied

I use windows 8

related ?