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
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
|
/***************************************************************************
* $Id$
* $Date$
*
* Project: libLAS -- C/C++ read/write library for LAS LIDAR data
* Purpose: LAS information reporting and setting
* Author: Martin Isenburg isenburg@cs.unc.edu
***************************************************************************
* Copyright (c) 2007, Martin Isenburg isenburg@cs.unc.edu
*
* See LICENSE.txt in this source distribution for more information.
**************************************************************************/
/* TODO: Remove before releasing */
#if defined(_MSC_VER) && defined(USE_VLD)
#include <vld.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <liblas.h>
LASPointSummary* SummarizePoints(LASReaderH reader);
void print_point_summary(FILE *file, LASPointSummary* summary, LASHeaderH header);
void print_header(FILE *file, LASHeaderH header, const char* file_name, int bSkipVLR);
void usage()
{
fprintf(stderr,"----------------------------------------------------------\n");
fprintf(stderr," lasinfo (version %s) usage:\n", LAS_GetVersion());
fprintf(stderr,"----------------------------------------------------------\n");
fprintf(stderr,"\n");
fprintf(stderr,"Printing simple header info:\n");
fprintf(stderr," lasinfo lidar.las\n");
fprintf(stderr,"\n");
fprintf(stderr,"Checking point information:\n");
fprintf(stderr," lasinfo --input lidar.las --check\n");
fprintf(stderr,"\n");
fprintf(stderr,"Print header info and point summary and redirect output to a file:\n");
fprintf(stderr," lasinfo --check --input lidar.las 2> output.txt\n");
fprintf(stderr,"\n");
fprintf(stderr,"Read from stdin, scan the points, and skip printing VLR info:\n");
fprintf(stderr," lasinfo --stdin --check --skip_vlr < lidar.las\n");
fprintf(stderr,"\n");
fprintf(stderr,"Repairing header info to reflect point data:\n");
fprintf(stderr," lasinfo -i lidar.las --repair\n");
fprintf(stderr,"\n");
fprintf(stderr,"Altering header info:\n");
fprintf(stderr, " lasinfo -i lidar.las --system_identifier \"hello world!\" "
"--generating_software \"this is a test (-:\" --file_creation 8 2007\n");
fprintf(stderr,"\n");
fprintf(stderr,"Print this output:\n");
fprintf(stderr, " lasinfo --help\n");
fprintf(stderr,"\n");
fprintf(stderr, "\nFor more information, see the full documentation for lasinfo at:\n"
" http://liblas.org/browser/trunk/doc/lasinfo.txt\n");
fprintf(stderr,"----------------------------------------------------------\n");
}
int main(int argc, char *argv[])
{
int i;
char* file_name = NULL;
LASReaderH reader = NULL;
LASHeaderH header = NULL;
LASWriterH writer = NULL;
int check_points = FALSE;
int repair_header = FALSE;
int change_header = FALSE;
int repair_bounding_box = FALSE;
int use_stdin = FALSE;
int update_return_counts = FALSE;
int skip_vlr = FALSE;
char *system_identifier = NULL;
char *generating_software = NULL;
uint8_t file_creation_day = 0;
uint8_t file_creation_year = 0;
int err = 0;
LASPointSummary* summary = NULL;
for (i = 1; i < argc; i++)
{
if ( strcmp(argv[i],"-h") == 0 ||
strcmp(argv[i],"--help") == 0
)
{
usage();
exit(0);
}
else if ( strcmp(argv[i],"--input") == 0 ||
strcmp(argv[i],"-input") == 0 ||
strcmp(argv[i],"-i") == 0 ||
strcmp(argv[i],"-in") == 0
)
{
i++;
file_name = argv[i];
}
else if ( strcmp(argv[i], "--points") == 0 ||
strcmp(argv[i], "--check") == 0 ||
strcmp(argv[i], "--check_points") == 0 ||
strcmp(argv[i], "-c") == 0 ||
strcmp(argv[i], "-points") == 0 ||
strcmp(argv[i], "-check") == 0 ||
strcmp(argv[i], "-check_points") == 0
)
{
check_points = TRUE;
}
else if ( strcmp(argv[i], "--nocheck") == 0 ||
strcmp(argv[i], "-nocheck") == 0
)
{
check_points = FALSE;
}
else if ( strcmp(argv[i], "--stdin") == 0 ||
strcmp(argv[i], "-ilas") == 0
)
{
use_stdin = TRUE;
}
else if ( strcmp(argv[i], "--repair") == 0 ||
strcmp(argv[i], "-r") == 0 ||
strcmp(argv[i], "-repair_header") == 0 ||
strcmp(argv[i], "-repair") == 0
)
{
repair_header = TRUE;
check_points = TRUE;
}
else if ( strcmp(argv[i], "--repair_bb") == 0 ||
strcmp(argv[i], "--repair_bounding_box") == 0 ||
strcmp(argv[i], "--repair_boundingbox") == 0 ||
strcmp(argv[i], "-repair_bb") == 0 ||
strcmp(argv[i], "-repair_bounding_box") == 0 ||
strcmp(argv[i], "-repair_boundingbox") == 0 ||
strcmp(argv[i], "-repair") == 0 ||
strcmp(argv[i], "-rb") == 0
)
{
repair_bounding_box = TRUE;
check_points = TRUE;
}
else if ( strcmp(argv[i],"--system_identifier") == 0 ||
strcmp(argv[i],"-system_identifier") == 0 ||
strcmp(argv[i],"-s") == 0 ||
strcmp(argv[i],"-sys_id") == 0)
{
i++;
system_identifier = (char*) malloc(31 * sizeof(char));
strcpy(system_identifier, argv[i]);
change_header = TRUE;
}
else if ( strcmp(argv[i],"--generating_software") == 0 ||
strcmp(argv[i],"-generating_software") == 0 ||
strcmp(argv[i],"-g") == 0 ||
strcmp(argv[i],"-gen_soft") == 0)
{
i++;
generating_software = (char*) malloc(31*sizeof(char));
strcpy(generating_software, argv[i]);
change_header = TRUE;
}
else if ( strcmp(argv[i],"--file_creation") == 0 ||
strcmp(argv[i],"-file_creation") == 0)
{
/* XXX - mloskot: Consider replacing atoi with strtol,
see http://www.iso-9899.info/wiki/Converting */
i++;
file_creation_day = (uint8_t)atoi(argv[i]);
i++;
file_creation_year = (uint8_t)atoi(argv[i]);
change_header = TRUE;
}
else if ( strcmp(argv[i],"--skip_vlr") == 0 ||
strcmp(argv[i],"--no_vlr") == 0)
{
skip_vlr = TRUE;
}
else if (file_name == NULL)
{
file_name = argv[i];
}
else
{
usage();
exit(1);
fprintf(stderr, "ERROR: unknown argument '%s'\n",argv[i]);
}
}
if (use_stdin) {
file_name = "stdin";
}
if (!file_name) {
LASError_Print("No filename was provided to be opened");
usage();
exit(1);
}
reader = LASReader_Create(file_name);
if (!reader) {
LASError_Print("Could not open file ");
exit(1);
}
header = LASReader_GetHeader(reader);
if (!header) {
LASError_Print("Could not get LASHeader ");
exit(1);
}
print_header(stdout, header, file_name, skip_vlr);
if (change_header) {
if (system_identifier) {
err = LASHeader_SetSystemId (header, system_identifier);
if (err) LASError_Print("Could not set SystemId");
}
if (generating_software) {
err = LASHeader_SetSoftwareId(header, generating_software);
if (err) LASError_Print("Could not set SoftwareId");
}
if ( file_creation_day || file_creation_year) {
err = LASHeader_SetCreationDOY(header, file_creation_day);
if (err) LASError_Print("Could not set file creation day");
err = LASHeader_SetCreationYear(header, file_creation_year);
if (err) LASError_Print("Could not set file creation year");
}
/* We need to wipe out the reader and make a writer. */
if (reader) {
LASReader_Destroy(reader);
reader = NULL;
}
writer = LASWriter_Create(file_name, header, LAS_MODE_APPEND);
if (!writer) {
LASError_Print("Problem creating LASWriterH object");
LASHeader_Destroy(header);
header = NULL;
exit(1);
}
if (writer) LASWriter_Destroy(writer);
writer = NULL;
if (header) LASHeader_Destroy(header);
header = NULL;
}
if (check_points)
{
if (!reader) {
reader = LASReader_Create(file_name);
if (!reader) {
LASError_Print("Could not open file ");
exit(1);
}
}
if (! header) {
header = LASReader_GetHeader(reader);
if (!header) {
LASError_Print("Could not get LASHeader ");
exit(1);
}
}
if (!summary)
summary = SummarizePoints(reader);
print_point_summary(stdout, summary, header);
if (repair_header) {
fprintf(stdout, "\n---------------------------------------------------------\n");
fprintf(stdout, " Repair Summary\n");
fprintf(stdout, "---------------------------------------------------------\n");
if (use_stdin) {
LASError_Print("Cannot update header information on piped input!");
exit(1);
}
if (! header) {
header = LASReader_GetHeader(reader);
if (!header) {
LASError_Print("Could not get LASHeader ");
exit(1);
}
}
if (! repair_bounding_box) {
if ( LASHeader_GetMinX(header) != LASPoint_GetX(summary->pmin) )
repair_bounding_box = TRUE;
if ( LASHeader_GetMinY(header) != LASPoint_GetY(summary->pmin) )
repair_bounding_box = TRUE;
if ( LASHeader_GetMinZ(header) != LASPoint_GetZ(summary->pmin) )
repair_bounding_box = TRUE;
if ( LASHeader_GetMaxX(header) != LASPoint_GetX(summary->pmax) )
repair_bounding_box = TRUE;
if ( LASHeader_GetMaxY(header) != LASPoint_GetY(summary->pmax) )
repair_bounding_box = TRUE;
if ( LASHeader_GetMaxZ(header) != LASPoint_GetZ(summary->pmax) )
repair_bounding_box = TRUE;
}
if (repair_bounding_box) {
fprintf(stdout, " Reparing Bounding Box...\n");
err = LASHeader_SetMin( header,
LASPoint_GetX(summary->pmin),
LASPoint_GetY(summary->pmin),
LASPoint_GetZ(summary->pmin)
);
if (err) {
LASError_Print("Could not set minimum for header ");
exit(1);
}
err = LASHeader_SetMax( header,
LASPoint_GetX(summary->pmax),
LASPoint_GetY(summary->pmax),
LASPoint_GetZ(summary->pmax)
);
if (err) {
LASError_Print("Could not set minimum for header ");
exit(1);
}
}
for (i = 0; i < 5; i++) {
if (LASHeader_GetPointRecordsByReturnCount(header, i) !=
summary->number_of_points_by_return[i])
{
update_return_counts = TRUE;
break;
}
}
if (update_return_counts) {
fprintf(stdout, " Reparing Point Count by Return...\n");
for (i = 0; i < 5; i++) {
LASHeader_SetPointRecordsByReturnCount( header,
i,
summary->number_of_points_by_return[i]);
}
}
if (reader) {
LASReader_Destroy(reader);
reader = NULL;
}
writer = LASWriter_Create(file_name, header, LAS_MODE_APPEND);
if (!writer) {
LASError_Print("Problem creating LASWriterH object for append");
LASHeader_Destroy(header);
header = NULL;
exit(1);
}
LASWriter_Destroy(writer);
writer = NULL;
LASHeader_Destroy(header);
header = NULL;
}
if (summary) {
LASPoint_Destroy(summary->pmin);
LASPoint_Destroy(summary->pmax);
free(summary);
}
}
if (reader) LASReader_Destroy(reader);
if (header) LASHeader_Destroy(header);
return 0;
}
|
