Topic:
What is the format definition of an ASCII CAD file?

Description:
Saved a CAD layer to ASCII and wants to know how the file is structured.    

       EXAMPLE:
       --------
       SETC,0.0,3,1,1,0.07,Y,1
       LOCA,5050,5050
       SETC,0.0,3,1,1,0.07,N,0,0.07,0.07
       LOCA,5000,5000
       TEXT,E25S
       POLG,4,5000,5000,6000,5000,6000,6000,5000,6000

Solution:
       THE DATA IS READ FROM AN ASCII FILE STRUCTURED AS FOLLOWS
       (THIS FORMAT MAY ALSO BE USED FOR SMART CAD OBJECTS)

       SETC - RECORD (SET OR CHANGE CONTROL ATTRIBUTES)
       ------------------------------------------------
       DF1         - 'SETC'
       DF2  ANGLE  - ANNOTATION ANGLE (DEGREES)
       DF3  COLOR  - COLOR INDEX
                     0 = IBACKGRND
                     1 = IGREEN
                     2 = IBLUE
                     3 = IRED
                     4 = IGREY
                     5 = IMAGENTA
                     6 = IORANGE
                     7 = IYELLOW
                     8 = LITYELLOW
                     9 = ILAVENDER
                    10 = IPINK
                    11 = LITGREEN
                    12 = IYELORANG
                    13 = ICYAN
                    14 = IBLACK
                    15 = IWHITE
       DF4  LINTYP - PATTERN NUMBER FOR LINE-DRAWING
                     1 = CONTINUOUS LINE
                     2 = DASHED LINE
                     3 = DOTTED LINE
       DF5  LINWAT - LINE WEIGHT (NUMBER OF PIXELS IN WIDTH)
       DF6  SIZE   - CHARACTER OR SYMBOL SIZE (INCHES)
       DF7  SYMBOL - SYMBOL NUMBER IN STANDARD IES SYMBOL TABLE
       DF8  SYMBON - 1 INDICATES TO DRAW THE SYMBOL SPECIFIED
                     IN DF7 AT ALL FOLLOWING CONTROL POINTS OR
                     LOCATIONS
       DF9  XOFF   - XOFFSET (INCHES) FOR SYMBOL AND TEXT ANNOTATION
       DF10 YOFF   - YOFFSET (INCHES) FOR SYMBOL AND TEXT ANNOTATION


       LOCA - RECORD (COORDINATES FOR A SINGLE LOCATION)
       -------------------------------------------------
       DF1         - 'LOCA'
       DF2  XLOC   - X-LOCATION (IN MAPPROJECTION UNITS)
       DF3  YLOC   - Y-LOCATION (IN MAPPROJECTION UNITS)

       TEXT - RECORD (TEXT TO ANNOTATE)
       --------------------------------
       DF1         - 'TEXT'
       DF2         - UP TO 76 CHARACTERS OF TEXT
       
       POLL - RECORD (COORDINATES FOR A POLYLINE)
       ------------------------------------------
       DF1         - 'POLL'
       DF2  NPOL   - NUMBER OF CONTROL POINTS IN POLYLINE
       DF3  XLOC1  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF4  YLOC1  - Y-LOCATION (IN MAPPROJECTION UNITS)
             "
             "
       DF13 XLOC6  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF14 YLOC6  - Y-LOCATION (IN MAPPROJECTION UNITS)

       POLL - RECORD (CONTINUATION RECORD)
       -----------------------------------
       DF1         - 'POLL'
       DF2  XLOC7  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF3  YLOC7  - Y-LOCATION (IN MAPPROJECTION UNITS)
             "
             "
       DF13 XLOC12  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF14 YLOC12  - Y-LOCATION (IN MAPPROJECTION UNITS)

       SIX PAIRS PER RECORD; CONTINUATION RECORDS DO NOT HAVE NPOL

       POLG - RECORD (COORDINATES FOR A CLOSED POLYGON)
       ------------------------------------------------
       DF1         - 'POLG'
       DF2  NPOL   - NUMBER OF CONTROL POINTS IN POLYLINE
       DF3  XLOC1  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF4  YLOC1  - Y-LOCATION (IN MAPPROJECTION UNITS)
             "
             "
       DF13 XLOC6  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF14 YLOC6  - Y-LOCATION (IN MAPPROJECTION UNITS)

       POLG - RECORD (CONTINUATION RECORD)
       -----------------------------------
       DF1         - 'POLG'
       DF2  XLOC7  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF3  YLOC7  - Y-LOCATION (IN MAPPROJECTION UNITS)
             "
             "
       DF13 XLOC12  - X-LOCATION (IN MAPPROJECTION UNITS)
       DF14 YLOC12  - Y-LOCATION (IN MAPPROJECTION UNITS)

       SIX PAIRS PER RECORD; CONTINUATION RECORDS DO NOT HAVE NPOL


 



Last Modified on: 03-NOV-98