Piping > Drawings > Pipe Spool Drawing Generation > Displaying Bending Data > About the Node Number
  
About the Node Number
Node numbers are displayed temporarily in the graphics window after you generate a spool drawing.
The node numbers as displayed in the graphics window are shown in the next figure.
In the above figure the numbers 1 to 8 represent node numbers. Node numbers 2 and 3 are assigned to the either sides of a reducer. Node numbers 4, 7, and 5 are assigned to each end of a TEE fitting. Node numbers 1, 6, and 8 are assigned to pipe ends.
Refer to the example on the ISOGEN Attribute Map file for details on how you can modify the isogen_attribute map_file.csv file to generate the bending data for the figure above.