1 .TH EHEADER 1 "Version 1.0" "Environmental planning utilities" "EPU user manual"
3 eheader \- display and modify headers of EPPL7 data files
16 Applies given editing commands to list of
22 Several commands are applicable to both file types and several
26 No warning is issued when
28 file is processed during section when epp\-specific commands used,
29 becouse several epp\-files can be processed at same time.
31 No warning is issued also when no editing commands given, therefore
32 this utility can be used just for viewing header information.
36 simply dumps headers of given files.
40 performs same operations as with
42 key, but only other option accepted is
44 This option may be given as before, as after base file.
48 This commands can be applied to both
57 \- dumps file header information
59 applying any edit options to
64 \- shifts alternative x by
66 Increment can be any real number, both positive and negative.
69 \- same with alternative y
72 \- multiplies all coordinates by factor
74 This commands cannot be used together with explicit settings of some
75 alternative coordinate limit.
77 .BR "\-Xl value" " or " "\-XL value"
78 \- sets alternative x of left border to specified value
80 .BR "\-Xr value" " or " "\-XR value"
81 \- same with right border
83 .BR "\-Yb value" " or " "\-YB value" , "\-Yt value" " or " "\-YT"
84 \- same with bottom and top y
87 \- set projection type to name. Available projection types (
93 \- cause EPPL ver 3 to say "No alternate coordinates"
99 \- state plane (projection for US state maps)
102 \- latitude and longitude (geographic coordinates)
104 .SH "EPP SPECIFIC COMMANDS"
105 Following is applicable to EPP files only:
108 \- set offsite value to n. Value can be in range \-32768 65535.
109 Negative values are equivalent to 65536\-abs(n). Values above 255, applied
112 data files are silently translated into \-1 (no offsite)
115 \- set first row to n and updates last row field respectively.
118 \- set first column to n and updates last column field.
121 \- align to specified file, i.e updates row/column coordinates
122 so row and column with same number have same alternative coordinates.
125 \- set cell area to value.
128 \- fills description field of the header. String must be single command line
129 argument, but not nessecary need quotes.
132 \- set area unit type, where unit type may be:
136 \- cause EPPL ver 3 to say "No alternate coordinates"
147 .B mile \- square miles
155 This command does not perform any recalculation, it just update
158 command for change cell area value respectively.
160 .SH "OPTION COMPATIBILYTY"
163 cannot coexist together in same command line.
164 there are two groups of options with incompatibilities between subgroup
167 First, options dealing with alternative coordinates. There are options
168 .B "-Xl -Xr -Yt -Yb,"
169 which set alternative coordinates explicitely, and options
171 which change coordinates by arithmetic calculations.
172 Explicit and arithmetic changes of coordinates are not allowed simulateneously,
173 becouse it is to hard to understand, which kind user want to apply first.
175 Second, options dealing with row/column coordinates of
177 files. Here there are options
178 .BR "-A" " and " "-fr -fc"
179 which performs directly opposite task.
182 are used to set first row and column to one, to process file cutted from
190 file into larger one.
199 No check is performed by
203 command to ensure that row/column values are in valid range.
206 command sometimes miscalculates one cell. (but EPPL ver 2.1 does the same).