1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
|
include <fset.h>
include <ctype.h>
include <math/gsurfit.h>
define MAX_FIELDS 100 # Maximum number of fields in list
define TABSIZE 8 # Spacing of tab stops
# Define the permitted computation types
define GEO_REAL 1 # Computation type is real
define GEO_DOUBLE 2 # Computation type is double
# T_GEOXYTRAN -- Transform a list of x and y coordinates using the geometric
# transformation operations computed by the GEOMAP task.
procedure t_geoxytran()
int inlist, outlist, reclist, calctype, geometry, dir, xcolumn, ycolumn
int min_sigdigits, infd, outfd
pointer sp, in_fname, out_fname, record, xformat, yformat, str, dt
pointer sx1, sy1, sx2, sy2
int clgwrd(), clgeti(), open()
bool streq()
int fntopnb(), fntlenb(), fntgfnb(), imtopenp(), imtlen(), imtgetim()
pointer dtmap()
begin
# Allocate memory for transformation parameters structure
call smark (sp)
call salloc (in_fname, SZ_FNAME, TY_CHAR)
call salloc (out_fname, SZ_FNAME, TY_CHAR)
call salloc (record, SZ_FNAME, TY_CHAR)
call salloc (xformat, SZ_FNAME, TY_CHAR)
call salloc (yformat, SZ_FNAME, TY_CHAR)
call salloc (str, SZ_LINE, TY_CHAR)
# Open the input and output file lists.
call clgstr ("input", Memc[str], SZ_FNAME)
if (Memc[str] == EOS)
call strcpy ("STDIN", Memc[str], SZ_FNAME)
inlist = fntopnb(Memc[str], NO)
call clgstr ("output", Memc[str], SZ_FNAME)
if (Memc[str] == EOS)
call strcpy ("STDOUT", Memc[str], SZ_FNAME)
outlist = fntopnb (Memc[str], NO)
call clgstr ("database", Memc[str], SZ_FNAME)
if (Memc[str] != EOS) {
dt = dtmap (Memc[str], READ_ONLY)
reclist = imtopenp ("transforms")
} else {
dt = NULL
reclist = NULL
}
# Test the input and out file and record lists for validity.
if (fntlenb(inlist) <= 0)
call error (0, "The input file list is empty")
if (fntlenb(outlist) <= 0)
call error (0, "The output file list is empty")
if (fntlenb(outlist) > 1 && fntlenb(outlist) != fntlenb(inlist))
call error (0,
"Input and output file lists are not the same length")
if (dt != NULL && reclist != NULL) {
if (imtlen (reclist) > 1 && imtlen (reclist) != fntlenb (inlist))
call error (0,
"Input file and record lists are not the same length.")
}
# Get geometry and transformation direction.
geometry = clgwrd ("geometry", Memc[str], SZ_LINE,
",linear,distortion,geometric,")
dir = clgwrd ("direction", Memc[str], SZ_LINE,
",forward,backward,")
# Get field numbers from cl
if (dir == 1)
calctype = clgwrd ("calctype", Memc[str], SZ_LINE,
",real,double,")
else
calctype = GEO_DOUBLE
xcolumn = clgeti ("xcolumn")
ycolumn = clgeti ("ycolumn")
call clgstr ("xformat", Memc[xformat], SZ_FNAME)
call clgstr ("yformat", Memc[yformat], SZ_FNAME)
min_sigdigits = clgeti ("min_sigdigits")
# Get the output file name.
if (fntgfnb (outlist, Memc[out_fname], SZ_FNAME) == EOF)
call strcpy ("STDOUT", Memc[out_fname], SZ_FNAME)
outfd = open (Memc[out_fname], NEW_FILE, TEXT_FILE)
if (streq (Memc[out_fname], "STDOUT") || outfd == STDOUT)
call fseti (outfd, F_FLUSHNL, YES)
# Get the record name.
if (reclist == NULL)
Memc[record] = EOS
else if (imtgetim (reclist, Memc[record], SZ_FNAME) == EOF)
Memc[record] = EOS
# Call procedure to get parameters and fill structure.
sx1 = NULL; sy1 = NULL; sx2 = NULL; sy2 = NULL
call geo_init_transform (dt, Memc[record], calctype, geometry,
sx1, sy1, sx2, sy2)
# While input list is not depleted, open file and transform list.
while (fntgfnb (inlist, Memc[in_fname], SZ_FNAME) != EOF) {
infd = open (Memc[in_fname], READ_ONLY, TEXT_FILE)
# Transform the coordinates.
call geo_transform_file (infd, outfd, xcolumn, ycolumn, dir,
calctype, Memc[xformat], Memc[yformat], min_sigdigits,
sx1, sy1, sx2, sy2)
# Do not get a new output file name if there is not output
# file list or if only one output file was specified.
# Otherwise fetch the new name.
if (fntlenb(outlist) > 1) {
call close (outfd)
if (fntgfnb (outlist, Memc[out_fname], SZ_FNAME) != EOF)
outfd = open (Memc[out_fname], NEW_FILE, TEXT_FILE)
if (streq (Memc[out_fname], "STDOUT") || outfd == STDOUT)
call fseti (outfd, F_FLUSHNL, YES)
}
call close (infd)
# Do not reset the transformation if there is no record list
# or only one record is specified. Otherwise fetch the next
# record name.
if (reclist != NULL && imtlen (reclist) > 1) {
if (imtgetim (reclist, Memc[record], SZ_FNAME) != EOF) {
call geo_free_transform (calctype, sx1, sy1, sx2, sy2)
call geo_init_transform (dt, Memc[record], calctype,
geometry, sx1, sy1, sx2, sy2)
}
}
}
# Free the surface descriptors.
call geo_free_transform (calctype, sx1, sy1, sx2, sy2)
# Close up file and record templates.
if (dt != NULL)
call dtunmap (dt)
call close (outfd)
call fntclsb (inlist)
call fntclsb (outlist)
if (reclist != NULL)
call imtclose (reclist)
call sfree (sp)
end
# GEO_INIT_TRANSFORM -- gets parameter values relevant to the
# transformation from the cl. List entries will be transformed
# in procedure rg_transform.
procedure geo_init_transform (dt, record, calctype, geometry, sx1, sy1,
sx2, sy2)
pointer dt #I pointer to database file produced by geomap
char record[ARB] #I the name of the database record
int calctype #I the computation data type
int geometry #I the type of geometry to be computed
pointer sx1, sy1 #O pointers to the linear x and y surfaces
pointer sx2, sy2 #O pointers to the x and y distortion surfaces
begin
if (dt == NULL) {
if (calctype == GEO_REAL)
call geo_linitr (sx1, sy1, sx2, sy2)
else
call geo_linitd (sx1, sy1, sx2, sy2)
} else {
if (calctype == GEO_REAL)
call geo_sinitr (dt, record, geometry, sx1, sy1,
sx2, sy2)
else
call geo_sinitd (dt, record, geometry, sx1, sy1,
sx2, sy2)
}
end
# GEO_FREE_TRANSFORM -- Free the previously defined transformation
procedure geo_free_transform (calctype, sx1, sy1, sx2, sy2)
int calctype #I the computation data type
pointer sx1, sy1 #O pointers to the linear x and y surfaces
pointer sx2, sy2 #O pointers to the x and y distortion surfaces
begin
if (calctype == GEO_REAL)
call geo_sfreer (sx1, sy1, sx2, sy2)
else
call geo_sfreed (sx1, sy1, sx2, sy2)
end
# GEO_TRANSFORM_FILE -- This procedure is called once for each file
# in the input list. For each line in the input file that isn't
# blank or comment, the line is transformed. Blank and comment
# lines are output unaltered.
procedure geo_transform_file (infd, outfd, xfield, yfield, dir, calctype,
xformat, yformat, min_sigdigits, sx1, sy1, sx2, sy2)
int infd #I the input file descriptor
int outfd #I the output file descriptor
int xfield #I the x column number
int yfield #I the y column number
int dir #I transform direction
int calctype #I the computation type
char xformat[ARB] #I output format of the x coordinate
char yformat[ARB] #I output format of the y coordinate
int min_sigdigits #I the minimum number of digits to be output
pointer sx1, sy1 #I pointers to the linear x and y surfaces
pointer sx2, sy2 #I pointers to the x and y distortion surfaces
double xd, yd, xtd, ytd
int max_fields, nline, nfields, nchars, nsdig_x, nsdig_y, offset
real xr, yr, xtr, ytr
pointer sp, inbuf, linebuf, field_pos, outbuf, ip
int getline(), li_get_numr(), li_get_numd()
int nsx, nsy
double der[8], xmin, xmax, ymin, ymax, tol
pointer sx[2], sy[2]
double dgsgetd()
#double x, y, xt, yt
begin
call smark (sp)
call salloc (inbuf, SZ_LINE, TY_CHAR)
call salloc (linebuf, SZ_LINE, TY_CHAR)
call salloc (field_pos, MAX_FIELDS, TY_INT)
call salloc (outbuf, SZ_LINE, TY_CHAR)
max_fields = MAX_FIELDS
# Initialize for backward transform.
if (dir == 2) {
sx[1] = sx1; sy[1] = sy1; sx[2] = sx2; sy[2] = sy2
nsx = 2; nsy = 2
if (sx2 == NULL)
nsx = 1
if (sy2 == NULL)
nsy = 1
xmin = dgsgetd (sx1, GSXMIN)
xmax = dgsgetd (sx1, GSXMAX)
ymin = dgsgetd (sx1, GSYMIN)
ymax = dgsgetd (sx1, GSYMAX)
tol = abs (xmax - xmin) / 1E10
xd = (xmin + xmax) / 2
yd = (ymin + ymax) / 2
call tr_init (sx, nsx, sy, nsy, xd, yd, der)
}
for (nline=1; getline (infd, Memc[inbuf]) != EOF; nline = nline + 1) {
for (ip=inbuf; IS_WHITE(Memc[ip]); ip=ip+1)
;
if (Memc[ip] == '#') {
# Pass comment lines on to the output unchanged.
call putline (outfd, Memc[inbuf])
next
} else if (Memc[ip] == '\n' || Memc[ip] == EOS) {
# Blank lines too.
call putline (outfd, Memc[inbuf])
next
}
# Expand tabs into blanks, determine field offsets.
call strdetab (Memc[inbuf], Memc[linebuf], SZ_LINE, TABSIZE)
call li_find_fields (Memc[linebuf], Memi[field_pos], max_fields,
nfields)
if (xfield > nfields || yfield > nfields) {
call fstats (infd, F_FILENAME, Memc[outbuf], SZ_LINE)
call eprintf ("Not enough fields in file %s line %d\n")
call pargstr (Memc[outbuf])
call pargi (nline)
call putline (outfd, Memc[linebuf])
next
}
offset = Memi[field_pos+xfield-1]
if (calctype == GEO_REAL)
nchars = li_get_numr (Memc[linebuf+offset-1], xr, nsdig_x)
else
nchars = li_get_numd (Memc[linebuf+offset-1], xd, nsdig_x)
if (nchars == 0) {
call fstats (infd, F_FILENAME, Memc[outbuf], SZ_LINE)
call eprintf ("Bad x value in file '%s' at line %d:\n")
call pargstr (Memc[outbuf])
call pargi (nline)
call putline (outfd, Memc[linebuf])
next
}
offset = Memi[field_pos+yfield-1]
if (calctype == GEO_REAL)
nchars = li_get_numr (Memc[linebuf+offset-1], yr, nsdig_y)
else
nchars = li_get_numd (Memc[linebuf+offset-1], yd, nsdig_y)
if (nchars == 0) {
call fstats (infd, F_FILENAME, Memc[outbuf], SZ_LINE)
call eprintf ("Bad y value in file '%s' at line %d:\n")
call pargstr (Memc[outbuf])
call pargi (nline)
call putline (outfd, Memc[linebuf])
next
}
if (calctype == GEO_REAL) {
call geo_do_transformr (xr, yr, xtr, ytr,
sx1, sy1, sx2, sy2)
call li_pack_liner (Memc[linebuf], Memc[outbuf], SZ_LINE,
Memi[field_pos], nfields, xfield, yfield, xtr, ytr,
xformat, yformat, nsdig_x, nsdig_y, min_sigdigits)
} else {
if (dir == 1)
call geo_do_transformd (xd, yd, xtd, ytd,
sx1, sy1, sx2, sy2)
else
call tr_invert (sx, nsx, sy, nsy, xd, yd, xtd, ytd,
der, xmin, xmax, ymin, ymax, tol)
call li_pack_lined (Memc[linebuf], Memc[outbuf], SZ_LINE,
Memi[field_pos], nfields, xfield, yfield, xtd, ytd,
xformat, yformat, nsdig_x, nsdig_y, min_sigdigits)
}
call putline (outfd, Memc[outbuf])
}
call sfree (sp)
end
|
