Export Polyline File

This command creates a polyline file that contains the point data of the select polylines. The objects supported by this tool include polylines, arcs and lines. If you want to include text, you must use the Text Explode To Polylines command found in the Edit menu to convert the text to polylines before running this command. This polyline file is a text file that has three formats. The Carlson format (.PLN) is used by machine control (Carlson Grade, Dozer 2000, GradeStar) for the plan view. Each polyline begins with a line of "POLYLINE, Color number". Then the points for the polyline are listed on separate lines in X,Y,Z format. Here is a list of the available color numbers:

0 = Black

  8 = Dark Gray

1 = Blue

  9 = Light Blue

2 = Green

10 = Light Green

3 = Cyan

11 = Light Cyan

4 = Red

12 = Light Red

5 = Magenta

13 = Light Magenta

6 = Brown

14 = Yellow

7 = Light Gray

15 = White

The MicroStation format (.txt) can be imported into MicroStation. This format has the coordinates as space delimited for each polyline point. There is an extra column with a 1 or 0 where 1 specifies the start of a new polyline. The DTM and Idan formats create linework files for the DTM and Idan programs.

Prompts

Polyline file format [<Carlson>/DTM/Idan/MicroStation]? press Enter for Carlson format
Specify File to Write dialog  create a new file or append to existing
Polyline file for Grid File Utilities macro [Yes/<No>]? press Enter The option will write a polyline file that can be used with Grid File Utilities for inclusion/exclusion perimeters.
Include Z coordinate in polyline file [Yes/<No>]? press Enter This option controls whether the polyline vertices are written in 2D or 3D.
Specify Exclusion/Warning Polylines [Yes/<No>]? press Enter This option applies to machine control for warning areas.
Specify WorkZone Polylines [Yes/<No>]? press Enter This option applies to machine control for working areas.
Reduce Polyline Vertices [<Yes>/No]? press Enter This option applies Reduce Polyline to the polyline vertices before writing the file.
Enter reduce offset cutoff <0.1>: press Enter
Decimal places for coordinates <2>: press Enter
Select polylines, lines and arcs to write.
Select objects: pick the entities to process
Done.

Sample Polyline File:

POLYLINE,15
47639.82,74540.11,0.00
47670.49,74565.79,0.00
47701.08,74591.49,0.00
49375.61,76358.47,0.00
50066.86,76846.75,0.00
POLYLINE,15
47633.24,74547.97,0.00
47663.90,74573.65,0.00
etc...

Keyboard Command: polywrite
Prerequisite: Polylines in the drawing