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
|
#include <grass/gis.h>
#include <grass/glocale.h>
#include <gdal.h>
#include "proto.h"
void query_band(GDALRasterBandH hBand, const char *output,
struct Cell_head *cellhd, struct band_info *info)
{
info->gdal_type = GDALGetRasterDataType(hBand);
info->null_val = GDALGetRasterNoDataValue(hBand, &info->has_null);
cellhd->compressed = 0;
switch (info->gdal_type) {
case GDT_Float32:
info->data_type = FCELL_TYPE;
cellhd->format = -1;
break;
case GDT_Float64:
info->data_type = DCELL_TYPE;
cellhd->format = -1;
break;
case GDT_Byte:
info->data_type = CELL_TYPE;
cellhd->format = 0;
break;
/* GDT_Int8 was introduced in GDAL 3.7 */
#if GDAL_VERSION_NUM >= GDAL_COMPUTE_VERSION(3, 7, 0)
case GDT_Int8:
info->data_type = CELL_TYPE;
cellhd->format = 1;
break;
#endif
case GDT_Int16:
case GDT_UInt16:
info->data_type = CELL_TYPE;
cellhd->format = 1;
break;
case GDT_Int32:
case GDT_UInt32:
info->data_type = CELL_TYPE;
cellhd->format = 3;
break;
default:
G_fatal_error(_("Complex types not supported"));
break;
}
if (info->have_minmax == 1) {
GDALComputeRasterMinMax(hBand, 0, info->minmax);
}
else if (info->have_minmax == 2) {
double min, max, mean, stddev;
G_warning(_("Statistics in metadata are sometimes approximations: min "
"and max can be wrong!"));
if (GDALGetRasterStatistics(hBand, false, true, &min, &max, &mean,
&stddev) != CE_None) {
G_fatal_error(_("Unable to get raster band statistics"));
}
info->minmax[0] = min;
info->minmax[1] = max;
}
Rast_init_colors(&info->colors);
if (GDALGetRasterColorTable(hBand) != NULL) {
GDALColorTableH hCT;
int count, i;
G_verbose_message(_("Copying color table for %s"), output);
hCT = GDALGetRasterColorTable(hBand);
count = GDALGetColorEntryCount(hCT);
for (i = 0; i < count; i++) {
GDALColorEntry sEntry;
GDALGetColorEntryAsRGB(hCT, i, &sEntry);
if (sEntry.c4 == 0)
continue;
Rast_set_c_color(i, sEntry.c1, sEntry.c2, sEntry.c3, &info->colors);
}
}
else {
if (info->gdal_type == GDT_Byte) {
/* set full 0..255 range to grey scale: */
G_verbose_message(
_("Setting grey color table for <%s> (full 8bit range)"),
output);
Rast_make_grey_scale_colors(&info->colors, 0, 255);
}
}
}
void make_cell(const char *output, const struct band_info *info)
{
FILE *fp;
fp = G_fopen_new("cell", output);
if (!fp)
G_fatal_error(_("Unable to create cell/%s file"), output);
fclose(fp);
if (info->data_type == CELL_TYPE)
return;
fp = G_fopen_new("fcell", output);
if (!fp)
G_fatal_error(_("Unable to create fcell/%s file"), output);
fclose(fp);
}
void make_link(const char *input, const char *output, int band,
const struct band_info *info, int flip)
{
struct Key_Value *key_val = G_create_key_value();
char null_str[256], type_str[8], band_str[8];
FILE *fp;
sprintf(band_str, "%d", band);
if (info->has_null) {
if (info->data_type == CELL_TYPE)
sprintf(null_str, "%d", (int)info->null_val);
else
sprintf(null_str, "%.22g", info->null_val);
}
else
strcpy(null_str, "none");
sprintf(type_str, "%d", info->gdal_type);
G_set_key_value("file", input, key_val);
G_set_key_value("band", band_str, key_val);
G_set_key_value("null", null_str, key_val);
G_set_key_value("type", type_str, key_val);
if (flip & FLIP_H)
G_set_key_value("hflip", "yes", key_val);
if (flip & FLIP_V)
G_set_key_value("vflip", "yes", key_val);
fp = G_fopen_new_misc("cell_misc", "gdal", output);
if (!fp)
G_fatal_error(_("Unable to create cell_misc/%s/gdal file"), output);
if (G_fwrite_key_value(fp, key_val) < 0)
G_fatal_error(_("Error writing cell_misc/%s/gdal file"), output);
fclose(fp);
}
void write_fp_format(const char *output, const struct band_info *info)
{
struct Key_Value *key_val;
const char *type;
FILE *fp;
if (info->data_type == CELL_TYPE)
return;
key_val = G_create_key_value();
type = (info->data_type == FCELL_TYPE) ? "float" : "double";
G_set_key_value("type", type, key_val);
G_set_key_value("byte_order", "xdr", key_val);
fp = G_fopen_new_misc("cell_misc", "f_format", output);
if (!fp)
G_fatal_error(_("Unable to create cell_misc/%s/f_format file"), output);
if (G_fwrite_key_value(fp, key_val) < 0)
G_fatal_error(_("Error writing cell_misc/%s/f_format file"), output);
fclose(fp);
G_free_key_value(key_val);
}
void write_fp_quant(const char *output)
{
struct Quant quant;
Rast_quant_init(&quant);
Rast_quant_round(&quant);
Rast_write_quant(output, G_mapset(), &quant);
}
void create_map(const char *input, int band, const char *output,
struct Cell_head *cellhd, struct band_info *info,
const char *title, int flip)
{
struct History history;
struct Categories cats;
char buf[1024];
Rast_put_cellhd(output, cellhd);
make_cell(output, info);
make_link(input, output, band, info, flip);
if (info->data_type != CELL_TYPE) {
write_fp_format(output, info);
write_fp_quant(output);
}
G_verbose_message(_("Creating support files for %s"), output);
Rast_short_history(output, "GDAL-link", &history);
Rast_command_history(&history);
sprintf(buf, "%s band %d", input, band);
Rast_set_history(&history, HIST_DATSRC_1, buf);
Rast_write_history(output, &history);
Rast_write_colors(output, G_mapset(), &info->colors);
Rast_init_cats(NULL, &cats);
Rast_write_cats((char *)output, &cats);
if (title)
Rast_put_cell_title(output, title);
if (info->have_minmax) {
if (info->data_type == CELL_TYPE) {
struct Range range;
Rast_init_range(&range);
Rast_update_range((CELL)info->minmax[0], &range);
Rast_update_range((CELL)info->minmax[1], &range);
Rast_write_range(output, &range);
}
else {
struct FPRange fprange;
Rast_init_fp_range(&fprange);
Rast_update_fp_range(info->minmax[0], &fprange);
Rast_update_fp_range(info->minmax[1], &fprange);
Rast_write_fp_range(output, &fprange);
}
}
G_message(_("Link to raster map <%s> created."), output);
}
|
