To Create Breakline Data in a Text File

Use a text editor to create a breakline file manually. You can then import this text file to use as breakline data for building the surface. For more information, see To Import Breaklines From a File.

1. Open an ASCII text editor, such as Notepad or Wordpad.
2. Create the file using the following structure:
   • Use the (#) symbol as the first character in a comment line.
   • Use one of the letters P, S, W, L, R, N (or ND) at the beginning of the line to describe the breakline type. These letters stand for Proximity, Standard, Wall, Wall Left, Wall Right, and Non-destructive. Identify a breakline type for each new breakline.
   • Enter the X, Y, and Z coordinates separated by a space.
   • A description of the breakline can follow the first coordinate of the line.
   • To create another breakline, enter the breakline type letter at the beginning of a line. In the following example, an S is placed at the beginning of line 8 of the file. All the points from this point until the next breakline letter modifier are in one breakline. This breakline is called EOP.
3. Save the file with an .flt file extension.

The following is an example of a breakline file:

# Autodesk User-Defined Breakline File
P1542.258750 		179.318779 	0.000000 Flow_Line
 1190.721102 		350.527660 	0.000000
 860.816542 		446.044194 	0.000000
 588.600214 		619.055276 	0.000000
 608.430540 		743.406990 	0.000000
 565.164367 		925.429066 	0.000000
S1529.639450 		179.318779 	100.250000 EOP
 1188.918348 		357.736453 	101.420000
 1021.998725 		330.653391 	103.530000
 594.008485 		610.044279 	102.870000
 761.574952 		744.929530 	104.780000
 610.233298 		754.220180 	103.410000
 570.572642 		923.626865 	100.980000
P1542.258750 		179.318779 	0.000000 Flow_Line
 1190.721102 		350.527660 	0.000000
 860.816542 		446.044194 	0.000000
 588.600214 		619.055276 	0.000000
 608.430540 		743.406990 	0.000000
 565.164367 		925.429066 	0.000000