Arc/Info E00数据格式详解

# ----------------------------------------------------------------------
# E00 Format Record Definitions
#
# Revision: $Id: e00.def,v 17.0 2005/10/28 21:08:25 geh Exp $
#
# Author               Date            Changes made
# ------------------   ------------    -------------------------------
# Graeme Hiebert       Mar 20, 1997    Original definition
# Graeme Hiebert       May 01, 1997    Added code to handle TXT subfile.
# Graeme Hiebert       Jun 03, 1997    Added multiple label cover #
#                                      attributes to POLY_CENTROID_2
#                                      and POLY_CENTROID_2_DOUBLE.
# Graeme Hiebert       Sep 11, 1997    Changes for E00 output
# Graeme Hiebert       Feb 12, 1998    Make sure we don't write out 0s
#                                      in coord records when we have no data
# Graeme Hiebert       Jun 03, 1999    Added RXP definitions.
# Graeme Hiebert       Aug 21, 2000    Change CNT's "e00_num_labels" from
#                                      "String(10,1)" to "Integer(10,1,N)"
# Graeme Hiebert       Jun 21, 2001    Change TX6/TX7's "e00_grnd_height" to
#                                      "e00_text_size", and added
#                                      "e00_text_height".
# Graeme Hiebert       May 03, 2005    (PR#6618) Use single-precision
#                                      floats for TX[67]_FLOAT_DATA_1 (the
#                                      "$FIT" parameter), even in a double-
#                                      precision coverage.
#
#                  Copyright (c) 1996 - 1998, Safe Software Inc.
#                              All Rights Reserved
#
#    These definitions may not be copied or reproduced, in all or in part, 

#    without the prior written consent of Safe Software Inc.
#
# ----------------------------------------------------------------------

# CAT_definitions for single-precision Arc/Info export format (E00)
# files.

# Full path to original export file.
CAT_DEF EXP_STATEMENT \
   e00_record_type   String(3,1)  \
   e00_option        Integer(3,4,N) \
   e00_filename      String(80,8)

# Spatial and polygon topology data for arcs.
CAT_DEF E00_TBL_HEADER    \
   e00_record_type   String(3,1)  \
   e00_precision     Integer(1,6,N)

###################################################################
#
# This section of definitions are used for single precision tables
# within the .E00 file.  The double-precision equivalents are
# defined immediately afterward.
#

# Defines the arc attributes which are specific to e00.
# Arcs are ended when record with value -1 0 0 0 0 0 0 
# is read.

CAT_DEF ARC_INFO      \