PostGIS 3.6.2dev-r@@SVN_REVISION@@
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cu_gdal.c
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1/*
2 * PostGIS Raster - Raster Types for PostGIS
3 * http://trac.osgeo.org/postgis/wiki/WKTRaster
4 *
5 * Copyright (C) 2012 Regents of the University of California
6 * <bkpark@ucdavis.edu>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 *
22 */
23
24#include "CUnit/Basic.h"
25#include "cu_tester.h"
26
27static void test_gdal_configured() {
28 CU_ASSERT(rt_util_gdal_configured());
29}
30
31static void test_gdal_drivers() {
32 uint32_t i;
33 uint32_t size;
34 rt_gdaldriver drv = NULL;
35
36 drv = (rt_gdaldriver) rt_raster_gdal_drivers(&size, 1);
37 CU_ASSERT(drv != NULL);
38
39 for (i = 0; i < size; i++) {
40 CU_ASSERT(strlen(drv[i].short_name));
41 rtdealloc(drv[i].short_name);
42 rtdealloc(drv[i].long_name);
43 rtdealloc(drv[i].create_options);
44 }
45
46 rtdealloc(drv);
47}
48
49static void test_gdal_rasterize() {
50 rt_raster raster;
51 char srs[] = "PROJCS[\"unnamed\",GEOGCS[\"unnamed ellipse\",DATUM[\"unknown\",SPHEROID[\"unnamed\",6370997,0]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],PARAMETER[\"latitude_of_center\",45],PARAMETER[\"longitude_of_center\",-100],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"Meter\",1],AUTHORITY[\"EPSG\",\"2163\"]]";
52 const char wkb_hex[] = "010300000001000000050000000000000080841ec100000000600122410000000080841ec100000000804f22410000000040e81dc100000000804f22410000000040e81dc100000000600122410000000080841ec10000000060012241";
53 const char *pos = wkb_hex;
54 unsigned char *wkb = NULL;
55 int wkb_len = 0;
56 int i;
57 double scale_x = 100;
58 double scale_y = -100;
59
60 rt_pixtype pixtype[] = {PT_8BUI};
61 double init[] = {0};
62 double value[] = {1};
63 double nodata[] = {0};
64 uint8_t nodata_mask[] = {1};
65
66 /* hex to byte */
67 wkb_len = (int) ceil(((double) strlen(wkb_hex)) / 2);
68 wkb = (unsigned char *) rtalloc(sizeof(unsigned char) * wkb_len);
69 for (i = 0; i < wkb_len; i++) {
70 int b = 0;
71 sscanf(pos, "%2x", &b);
72 wkb[i] = (unsigned char)b;
73 pos += 2;
74 }
75
76 raster = rt_raster_gdal_rasterize(
77 wkb,
78 wkb_len, srs,
79 1, pixtype,
80 init, value,
81 nodata, nodata_mask,
82 NULL, NULL,
83 &scale_x, &scale_y,
84 NULL, NULL,
85 NULL, NULL,
86 NULL, NULL,
87 NULL
88 );
89
90 CU_ASSERT(raster != NULL);
91 CU_ASSERT_EQUAL(rt_raster_get_width(raster), 100);
92 CU_ASSERT_EQUAL(rt_raster_get_height(raster), 100);
93 CU_ASSERT_NOT_EQUAL(rt_raster_get_num_bands(raster), 0);
94 CU_ASSERT_DOUBLE_EQUAL(rt_raster_get_x_offset(raster), -500000, DBL_EPSILON);
95 CU_ASSERT_DOUBLE_EQUAL(rt_raster_get_y_offset(raster), 600000, DBL_EPSILON);
96
97 rtdealloc(wkb);
98 cu_free_raster(raster);
99}
100
101static rt_raster fillRasterToPolygonize(int hasnodata, double nodataval) {
102 rt_band band = NULL;
103 rt_pixtype pixtype = PT_32BF;
104
105 /* Create raster */
106 uint16_t width = 9;
107 uint16_t height = 9;
108
109 rt_raster raster = rt_raster_new(width, height);
110 rt_raster_set_scale(raster, 1, 1);
111
112 band = cu_add_band(raster, pixtype, hasnodata, nodataval);
113 CU_ASSERT(band != NULL);
114
115 {
116 int x, y;
117 for (x = 0; x < rt_band_get_width(band); ++x)
118 for (y = 0; y < rt_band_get_height(band); ++y)
119 rt_band_set_pixel(band, x, y, 0.0, NULL);
120 }
121
122 rt_band_set_pixel(band, 3, 1, 1.8, NULL);
123 rt_band_set_pixel(band, 4, 1, 1.8, NULL);
124 rt_band_set_pixel(band, 5, 1, 2.8, NULL);
125 rt_band_set_pixel(band, 2, 2, 1.8, NULL);
126 rt_band_set_pixel(band, 3, 2, 1.8, NULL);
127 rt_band_set_pixel(band, 4, 2, 1.8, NULL);
128 rt_band_set_pixel(band, 5, 2, 2.8, NULL);
129 rt_band_set_pixel(band, 6, 2, 2.8, NULL);
130 rt_band_set_pixel(band, 1, 3, 1.8, NULL);
131 rt_band_set_pixel(band, 2, 3, 1.8, NULL);
132 rt_band_set_pixel(band, 6, 3, 2.8, NULL);
133 rt_band_set_pixel(band, 7, 3, 2.8, NULL);
134 rt_band_set_pixel(band, 1, 4, 1.8, NULL);
135 rt_band_set_pixel(band, 2, 4, 1.8, NULL);
136 rt_band_set_pixel(band, 6, 4, 2.8, NULL);
137 rt_band_set_pixel(band, 7, 4, 2.8, NULL);
138 rt_band_set_pixel(band, 1, 5, 1.8, NULL);
139 rt_band_set_pixel(band, 2, 5, 1.8, NULL);
140 rt_band_set_pixel(band, 6, 5, 2.8, NULL);
141 rt_band_set_pixel(band, 7, 5, 2.8, NULL);
142 rt_band_set_pixel(band, 2, 6, 1.8, NULL);
143 rt_band_set_pixel(band, 3, 6, 1.8, NULL);
144 rt_band_set_pixel(band, 4, 6, 1.8, NULL);
145 rt_band_set_pixel(band, 5, 6, 2.8, NULL);
146 rt_band_set_pixel(band, 6, 6, 2.8, NULL);
147 rt_band_set_pixel(band, 3, 7, 1.8, NULL);
148 rt_band_set_pixel(band, 4, 7, 1.8, NULL);
149 rt_band_set_pixel(band, 5, 7, 2.8, NULL);
150
151 return raster;
152}
153
154static void test_gdal_polygonize() {
155 int i;
156 rt_raster rt;
157 int nPols = 0;
158 double total_area = 0;
159 double total_val = 0;
160 rt_geomval gv = NULL;
161 LWGEOM *gobserved;
162 //char *wkt = NULL;
163
164 rt = fillRasterToPolygonize(1, -1.0);
165 CU_ASSERT(rt_raster_has_band(rt, 0));
166
167 nPols = 0;
168 gv = rt_raster_gdal_polygonize(rt, 0, TRUE, &nPols);
169 CU_ASSERT_DOUBLE_EQUAL(nPols, 4, FLT_EPSILON);
170 total_area = 0; total_val = 0;
171 for (i = 0; i < nPols; i++) {
172 total_val += gv[i].val;
173 gobserved = (LWGEOM *) gv[i].geom;
174 total_area += lwgeom_area(gobserved);
175 lwgeom_free((LWGEOM *) gv[i].geom);
176 }
177 printf("total area, total val, nPols = %f, %f, %i\n", total_area, total_val, nPols);
178 CU_ASSERT_DOUBLE_EQUAL(total_val, 1.8 + 0.0 + 2.8 + 0, FLT_EPSILON);
179 CU_ASSERT_DOUBLE_EQUAL(total_area, 81, FLT_EPSILON);
180
181 rtdealloc(gv);
182 cu_free_raster(rt);
183
184 /* Second test: NODATA value = 1.8 */
185 rt = fillRasterToPolygonize(1, 1.8);
186
187 /* We can check rt_raster_has_band here too */
188 CU_ASSERT(rt_raster_has_band(rt, 0));
189
190 nPols = 0;
191 gv = rt_raster_gdal_polygonize(rt, 0, TRUE, &nPols);
192 CU_ASSERT_DOUBLE_EQUAL(nPols, 4, FLT_EPSILON);
193 total_area = 0; total_val = 0;
194 for (i = 0; i < nPols; i++) {
195 total_val += gv[i].val;
196 gobserved = (LWGEOM *) gv[i].geom;
197 total_area += lwgeom_area(gobserved);
198 lwgeom_free((LWGEOM *) gv[i].geom);
199 }
200 printf("total area, total_val, polys = %f, %f, %i\n", total_area, total_val, nPols);
201 CU_ASSERT_DOUBLE_EQUAL(total_val, 4.6, FLT_EPSILON);
202 CU_ASSERT_DOUBLE_EQUAL(total_area, 81, FLT_EPSILON);
203
204
205 rtdealloc(gv);
206 cu_free_raster(rt);
207
208 /* Third test: NODATA value = 2.8 */
209 rt = fillRasterToPolygonize(1, 2.8);
210
211 /* We can check rt_raster_has_band here too */
212 CU_ASSERT(rt_raster_has_band(rt, 0));
213
214 nPols = 0;
215 gv = rt_raster_gdal_polygonize(rt, 0, TRUE, &nPols);
216 CU_ASSERT_DOUBLE_EQUAL(nPols, 4, FLT_EPSILON);
217 total_area = 0; total_val = 0;
218 for (i = 0; i < nPols; i++) {
219 total_val += gv[i].val;
220 gobserved = (LWGEOM *) gv[i].geom;
221 total_area += lwgeom_area(gobserved);
222 lwgeom_free((LWGEOM *) gv[i].geom);
223 }
224
225 printf("total area, total_val, polys = %f, %f, %i\n", total_area, total_val, nPols);
226 CU_ASSERT_DOUBLE_EQUAL(total_val, 4.6, FLT_EPSILON);
227 CU_ASSERT_DOUBLE_EQUAL(total_area, 81, FLT_EPSILON);
228
229 rtdealloc(gv);
230 cu_free_raster(rt);
231
232 /* Fourth test: NODATA value = 0 */
233 rt = fillRasterToPolygonize(1, 0.0);
234 /* We can check rt_raster_has_band here too */
235 CU_ASSERT(rt_raster_has_band(rt, 0));
236
237 nPols = 0;
238 gv = rt_raster_gdal_polygonize(rt, 0, TRUE, &nPols);
239
240 CU_ASSERT_DOUBLE_EQUAL(nPols, 2, FLT_EPSILON);
241 total_area = 0; total_val = 0;
242 for (i = 0; i < nPols; i++) {
243 total_val += gv[i].val;
244 gobserved = (LWGEOM *) gv[i].geom;
245 total_area += lwgeom_area(gobserved);
246 lwgeom_free((LWGEOM *) gv[i].geom);
247 }
248
249 printf("total area, total_val, polys = %f, %f, %i\n", total_area, total_val, nPols);
250 CU_ASSERT_DOUBLE_EQUAL(total_val, 4.6, FLT_EPSILON);
251 CU_ASSERT_DOUBLE_EQUAL(total_area, 28, FLT_EPSILON);
252
253 rtdealloc(gv);
254 cu_free_raster(rt);
255
256 /* Last test: There is no NODATA value (all values are valid) */
257 rt = fillRasterToPolygonize(0, 0.0);
258 /* We can check rt_raster_has_band here too */
259 CU_ASSERT(rt_raster_has_band(rt, 0));
260
261 nPols = 0;
262 gv = rt_raster_gdal_polygonize(rt, 0, TRUE, &nPols);
263
264 CU_ASSERT_DOUBLE_EQUAL(nPols, 4, FLT_EPSILON);
265 total_area = 0; total_val = 0;
266 for (i = 0; i < nPols; i++) {
267 total_val += gv[i].val;
268 gobserved = (LWGEOM *) gv[i].geom;
269 total_area += lwgeom_area(gobserved);
270 lwgeom_free((LWGEOM *) gv[i].geom);
271 }
272
273 printf("total area, total_val, polys = %f, %f, %i\n", total_area, total_val, nPols);
274 CU_ASSERT_DOUBLE_EQUAL(total_val, 1.8 + 0.0 + 2.8 + 0.0, FLT_EPSILON);
275 CU_ASSERT_DOUBLE_EQUAL(total_area, 81, FLT_EPSILON);
276 rtdealloc(gv);
277 cu_free_raster(rt);
278}
279
280static void test_raster_to_gdal() {
281 rt_pixtype pixtype = PT_64BF;
282 rt_raster raster = NULL;
283 rt_band band = NULL;
284 uint32_t x;
285 uint32_t width = 100;
286 uint32_t y;
287 uint32_t height = 100;
288 char srs[] = "PROJCS[\"unnamed\",GEOGCS[\"unnamed ellipse\",DATUM[\"unknown\",SPHEROID[\"unnamed\",6370997,0]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],PARAMETER[\"latitude_of_center\",45],PARAMETER[\"longitude_of_center\",-100],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"Meter\",1],AUTHORITY[\"EPSG\",\"2163\"]]";
289
290 uint64_t gdalSize;
291 uint8_t *gdal = NULL;
292
293 raster = rt_raster_new(width, height);
294 CU_ASSERT(raster != NULL); /* or we're out of virtual memory */
295
296 band = cu_add_band(raster, pixtype, 1, 0);
297 CU_ASSERT(band != NULL);
298
299 rt_raster_set_offsets(raster, -500000, 600000);
300 rt_raster_set_scale(raster, 1000, -1000);
301
302 for (x = 0; x < width; x++) {
303 for (y = 0; y < height; y++) {
304 rt_band_set_pixel(band, x, y, (((double) x * y) + (x + y) + (x + y * x)) / (x + y + 1), NULL);
305 }
306 }
307
308 gdal = rt_raster_to_gdal(raster, srs, "GTiff", NULL, &gdalSize);
309 /*printf("gdalSize: %d\n", (int) gdalSize);*/
310 CU_ASSERT(gdalSize);
311
312 /*
313 FILE *fh = NULL;
314 fh = fopen("/tmp/out.tif", "w");
315 fwrite(gdal, sizeof(uint8_t), gdalSize, fh);
316 fclose(fh);
317 */
318
319 if (gdal) CPLFree(gdal);
320
321 cu_free_raster(raster);
322
323 raster = rt_raster_new(width, height);
324 CU_ASSERT(raster != NULL); /* or we're out of virtual memory */
325
326 band = cu_add_band(raster, pixtype, 1, 0);
327 CU_ASSERT(band != NULL);
328
329 rt_raster_set_offsets(raster, -500000, 600000);
330 rt_raster_set_scale(raster, 1000, -1000);
331
332 for (x = 0; x < width; x++) {
333 for (y = 0; y < height; y++) {
334 rt_band_set_pixel(band, x, y, x, NULL);
335 }
336 }
337
338 /* add check that band isn't NODATA */
339 CU_ASSERT_EQUAL(rt_band_check_is_nodata(band), FALSE);
340
341 gdal = rt_raster_to_gdal(raster, srs, "PNG", NULL, &gdalSize);
342 /*printf("gdalSize: %d\n", (int) gdalSize);*/
343 CU_ASSERT(gdalSize);
344
345 if (gdal) CPLFree(gdal);
346
347 gdal = rt_raster_to_gdal(raster, srs, "PCIDSK", NULL, &gdalSize);
348 CU_ASSERT(gdal == NULL);
349
350 cu_free_raster(raster);
351}
352
353static void test_gdal_to_raster() {
354 rt_pixtype pixtype = PT_64BF;
355 rt_band band = NULL;
356
357 rt_raster raster;
358 rt_raster rast;
359 const uint32_t width = 100;
360 const uint32_t height = 100;
361 uint32_t x;
362 uint32_t y;
363 int v;
364 double values[width][height];
365 int rtn = 0;
366 double value;
367
368 GDALDriverH gddrv = NULL;
369 int destroy = 0;
370 GDALDatasetH gdds = NULL;
371
372 raster = rt_raster_new(width, height);
373 CU_ASSERT(raster != NULL); /* or we're out of virtual memory */
374
375 band = cu_add_band(raster, pixtype, 1, 0);
376 CU_ASSERT(band != NULL);
377
378 for (x = 0; x < width; x++) {
379 for (y = 0; y < height; y++) {
380 values[x][y] = (((double) x * y) + (x + y) + (x + y * x)) / (x + y + 1);
381 rt_band_set_pixel(band, x, y, values[x][y], NULL);
382 }
383 }
384
385 gdds = rt_raster_to_gdal_mem(raster, NULL, NULL, NULL, 0, &gddrv, &destroy);
386 CU_ASSERT(gddrv != NULL);
387 CU_ASSERT(gdds != NULL);
388 CU_ASSERT_EQUAL((uint32_t)GDALGetRasterXSize(gdds), width);
389 CU_ASSERT_EQUAL((uint32_t)GDALGetRasterYSize(gdds), height);
390
391 rast = rt_raster_from_gdal_dataset(gdds);
392 CU_ASSERT(rast != NULL);
393 CU_ASSERT_EQUAL(rt_raster_get_num_bands(rast), 1);
394
395 band = rt_raster_get_band(rast, 0);
396 CU_ASSERT(band != NULL);
397
398 for (x = 0; x < width; x++) {
399 for (y = 0; y < height; y++) {
400 rtn = rt_band_get_pixel(band, x, y, &value, NULL);
401 CU_ASSERT_EQUAL(rtn, ES_NONE);
402 CU_ASSERT_DOUBLE_EQUAL(value, values[x][y], DBL_EPSILON);
403 }
404 }
405
406 if (destroy && gddrv) {
407 GDALDeregisterDriver(gddrv);
408 GDALDestroyDriver(gddrv);
409 }
410 GDALClose(gdds);
411 gdds = NULL;
412 gddrv = NULL;
413
414 cu_free_raster(rast);
415 cu_free_raster(raster);
416
417 raster = rt_raster_new(width, height);
418 CU_ASSERT(raster != NULL); /* or we're out of virtual memory */
419
420 pixtype = PT_8BSI;
421 band = cu_add_band(raster, pixtype, 1, 0);
422 CU_ASSERT(band != NULL);
423
424 v = -127;
425 for (x = 0; x < width; x++) {
426 for (y = 0; y < height; y++) {
427 values[x][y] = v++;
428 rt_band_set_pixel(band, x, y, values[x][y], NULL);
429 if (v == 128)
430 v = -127;
431 }
432 }
433
434 gdds = rt_raster_to_gdal_mem(raster, NULL, NULL, NULL, 0, &gddrv, &destroy);
435 CU_ASSERT(gddrv != NULL);
436 CU_ASSERT(gdds != NULL);
437 CU_ASSERT_EQUAL((uint32_t)GDALGetRasterXSize(gdds), width);
438 CU_ASSERT_EQUAL((uint32_t)GDALGetRasterYSize(gdds), height);
439
440 rast = rt_raster_from_gdal_dataset(gdds);
441 CU_ASSERT(rast != NULL);
442 CU_ASSERT_EQUAL(rt_raster_get_num_bands(rast), 1);
443
444 band = rt_raster_get_band(rast, 0);
445 CU_ASSERT(band != NULL);
446#if POSTGIS_GDAL_VERSION < 30700
447 CU_ASSERT_EQUAL(rt_band_get_pixtype(band), PT_16BSI);
448#else
449 CU_ASSERT_EQUAL(rt_band_get_pixtype(band), PT_8BSI);
450#endif
451 for (x = 0; x < width; x++) {
452 for (y = 0; y < height; y++) {
453 rtn = rt_band_get_pixel(band, x, y, &value, NULL);
454#if POSTGIS_GDAL_VERSION < 30700
455 CU_ASSERT_DOUBLE_EQUAL(value, values[x][y], 1.);
456 CU_ASSERT_DOUBLE_EQUAL(value, values[x][y], DBL_EPSILON);
457#else
458 CU_ASSERT_EQUAL(rtn, ES_NONE);
459 CU_ASSERT_DOUBLE_EQUAL(value, values[x][y], DBL_EPSILON);
460#endif
461 }
462 }
463 if (destroy && gddrv) {
464 GDALDeregisterDriver(gddrv);
465 GDALDestroyDriver(gddrv);
466 }
467
468 GDALClose(gdds);
469 gdds = NULL;
470 gddrv = NULL;
471
472 cu_free_raster(rast);
473 cu_free_raster(raster);
474}
475
476static void test_gdal_warp() {
477 rt_pixtype pixtype = PT_64BF;
478 rt_band band = NULL;
479
480 rt_raster raster;
481 rt_raster rast;
482 uint32_t x;
483 uint32_t width = 100;
484 uint32_t y;
485 uint32_t height = 100;
486 double value = 0;
487
488 char src_srs[] = "PROJCS[\"unnamed\",GEOGCS[\"unnamed ellipse\",DATUM[\"unknown\",SPHEROID[\"unnamed\",6370997,0]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],PARAMETER[\"latitude_of_center\",45],PARAMETER[\"longitude_of_center\",-100],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"Meter\",1],AUTHORITY[\"EPSG\",\"2163\"]]";
489
490 char dst_srs[] = "PROJCS[\"NAD83 / California Albers\",GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6269\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.01745329251994328,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4269\"]],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],PROJECTION[\"Albers_Conic_Equal_Area\"],PARAMETER[\"standard_parallel_1\",34],PARAMETER[\"standard_parallel_2\",40.5],PARAMETER[\"latitude_of_center\",0],PARAMETER[\"longitude_of_center\",-120],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",-4000000],AUTHORITY[\"EPSG\",\"3310\"],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH]]";
491
492 raster = rt_raster_new(width, height);
493 CU_ASSERT(raster != NULL); /* or we're out of virtual memory */
494
495 band = cu_add_band(raster, pixtype, 1, 0);
496 CU_ASSERT(band != NULL);
497
498 rt_raster_set_offsets(raster, -500000, 600000);
499 rt_raster_set_scale(raster, 1000, -1000);
500
501 for (x = 0; x < width; x++) {
502 for (y = 0; y < height; y++) {
503 rt_band_set_pixel(band, x, y, (((double) x * y) + (x + y) + (x + y * x)) / (x + y + 1), NULL);
504 }
505 }
506
507 rast = rt_raster_gdal_warp(
508 raster,
509 src_srs, dst_srs,
510 NULL, NULL,
511 NULL, NULL,
512 NULL, NULL,
513 NULL, NULL,
514 NULL, NULL,
515 GRA_NearestNeighbour, -1
516 );
517 CU_ASSERT(rast != NULL);
518 CU_ASSERT_EQUAL(rt_raster_get_width(rast), 122);
519 CU_ASSERT_EQUAL(rt_raster_get_height(rast), 116);
520 CU_ASSERT_NOT_EQUAL(rt_raster_get_num_bands(rast), 0);
521
522 band = rt_raster_get_band(rast, 0);
523 CU_ASSERT(band != NULL);
524
525 CU_ASSERT(rt_band_get_hasnodata_flag(band));
526 rt_band_get_nodata(band, &value);
527 CU_ASSERT_DOUBLE_EQUAL(value, 0., DBL_EPSILON);
528
529 CU_ASSERT_EQUAL(rt_band_get_pixel(band, 0, 0, &value, NULL), ES_NONE);
530 CU_ASSERT_DOUBLE_EQUAL(value, 0., DBL_EPSILON);
531
532 cu_free_raster(rast);
533 cu_free_raster(raster);
534}
535
536static void test_gdal_warp_preserves_data(void) {
537 const char *filename = POSTGIS_TOP_SRC_DIR "/raster/test/regress/loader/Projected.tif";
538
539 GDALDatasetH hDS_in = NULL;
540 rt_raster rast_in = NULL;
541 rt_raster rast_out = NULL;
542 int band_count_in, band_count_out, i;
543
544 // double scale_x = 0.0, scale_y = 0.0;
545 // double dim_x = 0.0, dim_y = 0.0;
546 // int width = 0, height = 0;
547 // double grid_xw = 0.0, grid_yw = 0.0;
548 // double skew_x = 0.0, skew_y = 0.0;
549
550 double max_err = 0.125;
551 GDALResampleAlg alg = GRA_NearestNeighbour;
552
553 const char *src_srs = "EPSG:4326";
554 const char *dst_srs = "EPSG:3857";
555
556 /* Handle to TIFF */
557 GDALAllRegister();
558 hDS_in = GDALOpen(filename, GA_ReadOnly);
559 CU_ASSERT(hDS_in != NULL);
560
561 /* Read TIFF into memory as rt_raster */
562 rast_in = rt_raster_from_gdal_dataset(hDS_in);
563 CU_ASSERT(rast_in != NULL);
564
565 /* Warp raster using default options */
566 rast_out = rt_raster_gdal_warp(rast_in,
567 src_srs, dst_srs,
568 NULL, NULL, // &scale_x, &scale_y,
569 NULL, NULL, // &dim_x, &dim_y,
570 NULL, NULL, // &width, &height,
571 NULL, NULL, // &grid_xw, &grid_yw,
572 NULL, NULL, // &skew_x, &skew_y,
573 alg, max_err);
574 CU_ASSERT(rast_out != NULL);
575
576 band_count_in = rt_raster_get_num_bands(rast_in);
577 band_count_out = rt_raster_get_num_bands(rast_out);
578 CU_ASSERT_EQUAL(band_count_in, band_count_out);
579
580 for (i = 0; i < band_count_in; i++) {
581 double tolerance = 0.1;
582 rt_bandstats stats_in, stats_out;
583 rt_band band_in = rt_raster_get_band(rast_in, i);
584 rt_band band_out = rt_raster_get_band(rast_out, i);
585
586 CU_ASSERT(band_in != NULL);
587 CU_ASSERT(band_out != NULL);
588
589 stats_in = rt_band_get_summary_stats(band_in, 1, 1, 0, NULL, NULL, NULL);
590 stats_out = rt_band_get_summary_stats(band_out, 1, 1, 0, NULL, NULL, NULL);
591
592 CU_ASSERT_DOUBLE_EQUAL(stats_in->min, stats_out->min, fabs(stats_in->min) * tolerance);
593 CU_ASSERT_DOUBLE_EQUAL(stats_in->max, stats_out->max, fabs(stats_in->max) * tolerance);
594 CU_ASSERT_DOUBLE_EQUAL(stats_in->mean, stats_out->mean, fabs(stats_in->mean) * tolerance);
595 }
596
597 rt_raster_destroy(rast_in);
598 rt_raster_destroy(rast_out);
599 GDALClose(hDS_in);
600}
601
602/* register tests */
603void gdal_suite_setup(void);
604void gdal_suite_setup(void)
605{
606 CU_pSuite suite = CU_add_suite("gdal", NULL, NULL);
607 PG_ADD_TEST(suite, test_gdal_configured);
608 PG_ADD_TEST(suite, test_gdal_drivers);
609 PG_ADD_TEST(suite, test_gdal_rasterize);
610 PG_ADD_TEST(suite, test_gdal_polygonize);
611 PG_ADD_TEST(suite, test_raster_to_gdal);
612 PG_ADD_TEST(suite, test_gdal_to_raster);
613 PG_ADD_TEST(suite, test_gdal_warp);
614 PG_ADD_TEST(suite, test_gdal_warp_preserves_data);
615}
616
fillRasterToPolygonize
static rt_raster fillRasterToPolygonize(int hasnodata, double nodataval)
Definition cu_gdal.c:101
test_gdal_warp_preserves_data
static void test_gdal_warp_preserves_data(void)
Definition cu_gdal.c:536
test_gdal_warp
static void test_gdal_warp()
Definition cu_gdal.c:476
test_gdal_rasterize
static void test_gdal_rasterize()
Definition cu_gdal.c:49
test_gdal_to_raster
static void test_gdal_to_raster()
Definition cu_gdal.c:353
test_raster_to_gdal
static void test_raster_to_gdal()
Definition cu_gdal.c:280
gdal_suite_setup
void gdal_suite_setup(void)
Definition cu_gdal.c:604
test_gdal_drivers
static void test_gdal_drivers()
Definition cu_gdal.c:31
test_gdal_configured
static void test_gdal_configured()
Definition cu_gdal.c:27
test_gdal_polygonize
static void test_gdal_polygonize()
Definition cu_gdal.c:154
TRUE
#define TRUE
Definition dbfopen.c:73
FALSE
#define FALSE
Definition dbfopen.c:72
PG_ADD_TEST
#define PG_ADD_TEST(suite, testfunc)
Definition liblwgeom/cunit/cu_tester.h:21
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition lwgeom.c:1218
lwgeom_area
double lwgeom_area(const LWGEOM *geom)
Definition lwgeom.c:1971
rtalloc
void * rtalloc(size_t size)
Wrappers used for managing memory.
Definition rt_context.c:191
rt_band_get_width
uint16_t rt_band_get_width(rt_band band)
Return width of this band.
Definition rt_band.c:791
rt_raster_get_x_offset
double rt_raster_get_x_offset(rt_raster raster)
Get raster x offset, in projection units.
Definition rt_raster.c:217
rt_util_gdal_configured
int rt_util_gdal_configured(void)
Definition rt_util.c:328
rt_raster_gdal_drivers
rt_gdaldriver rt_raster_gdal_drivers(uint32_t *drv_count, uint8_t cancc)
Returns a set of available GDAL drivers.
Definition rt_raster.c:1716
rt_raster_set_scale
void rt_raster_set_scale(rt_raster raster, double scaleX, double scaleY)
Set scale in projection units.
Definition rt_raster.c:141
rt_band_get_hasnodata_flag
int rt_band_get_hasnodata_flag(rt_band band)
Get hasnodata flag value.
Definition rt_band.c:825
rt_raster_to_gdal
uint8_t * rt_raster_to_gdal(rt_raster raster, const char *srs, char *format, char **options, uint64_t *gdalsize)
Return formatted GDAL raster from raster.
Definition rt_raster.c:1598
rt_band_get_pixel
rt_errorstate rt_band_get_pixel(rt_band band, int x, int y, double *value, int *nodata)
Get pixel value.
Definition rt_band.c:1527
rt_raster_destroy
void rt_raster_destroy(rt_raster raster)
Release memory associated to a raster.
Definition rt_raster.c:86
rt_pixtype
rt_pixtype
Definition librtcore.h:187
PT_32BF
@ PT_32BF
Definition librtcore.h:197
PT_8BSI
@ PT_8BSI
Definition librtcore.h:191
PT_16BSI
@ PT_16BSI
Definition librtcore.h:193
PT_64BF
@ PT_64BF
Definition librtcore.h:198
PT_8BUI
@ PT_8BUI
Definition librtcore.h:192
rt_raster_new
rt_raster rt_raster_new(uint32_t width, uint32_t height)
Construct a raster with given dimensions.
Definition rt_raster.c:52
rt_raster_has_band
int rt_raster_has_band(rt_raster raster, int nband)
Return TRUE if the raster has a band of this number.
Definition rt_raster.c:1253
rt_raster_from_gdal_dataset
rt_raster rt_raster_from_gdal_dataset(GDALDatasetH ds)
Return a raster from a GDAL dataset.
Definition rt_raster.c:2175
rt_raster_gdal_polygonize
rt_geomval rt_raster_gdal_polygonize(rt_raster raster, int nband, int exclude_nodata_value, int *pnElements)
Returns a set of "geomval" value, one for each group of pixel sharing the same value for the provided...
Definition rt_geometry.c:975
rt_band_check_is_nodata
int rt_band_check_is_nodata(rt_band band)
Returns TRUE if the band is only nodata values.
Definition rt_band.c:2060
rt_band_set_pixel
rt_errorstate rt_band_set_pixel(rt_band band, int x, int y, double val, int *converted)
Set single pixel's value.
Definition rt_band.c:1125
ES_NONE
@ ES_NONE
Definition librtcore.h:182
rt_raster_gdal_rasterize
rt_raster rt_raster_gdal_rasterize(const unsigned char *wkb, uint32_t wkb_len, const char *srs, uint32_t num_bands, rt_pixtype *pixtype, double *init, double *value, double *nodata, uint8_t *hasnodata, int *width, int *height, double *scale_x, double *scale_y, double *ul_xw, double *ul_yw, double *grid_xw, double *grid_yw, double *skew_x, double *skew_y, char **options)
Return a raster of the provided geometry.
Definition rt_raster.c:2502
rt_raster_get_num_bands
uint16_t rt_raster_get_num_bands(rt_raster raster)
Definition rt_raster.c:376
rt_gdaldriver
struct rt_gdaldriver_t * rt_gdaldriver
Definition librtcore.h:155
rt_raster_get_height
uint16_t rt_raster_get_height(rt_raster raster)
Definition rt_raster.c:133
rt_band_get_nodata
rt_errorstate rt_band_get_nodata(rt_band band, double *nodata)
Get NODATA value.
Definition rt_band.c:2038
rt_band_get_pixtype
rt_pixtype rt_band_get_pixtype(rt_band band)
Return pixeltype of this band.
Definition rt_band.c:782
rt_raster_get_width
uint16_t rt_raster_get_width(rt_raster raster)
Definition rt_raster.c:125
rtdealloc
void rtdealloc(void *mem)
Definition rt_context.c:206
rt_raster_gdal_warp
rt_raster rt_raster_gdal_warp(rt_raster raster, const char *src_srs, const char *dst_srs, double *scale_x, double *scale_y, int *width, int *height, double *ul_xw, double *ul_yw, double *grid_xw, double *grid_yw, double *skew_x, double *skew_y, GDALResampleAlg resample_alg, double max_err)
Return a warped raster using GDAL Warp API.
Definition rt_warp.c:177
rt_raster_to_gdal_mem
GDALDatasetH rt_raster_to_gdal_mem(rt_raster raster, const char *srs, uint32_t *bandNums, int *excludeNodataValues, int count, GDALDriverH *rtn_drv, int *destroy_rtn_drv)
Return GDAL dataset using GDAL MEM driver from raster.
Definition rt_raster.c:1813
rt_raster_set_offsets
void rt_raster_set_offsets(rt_raster raster, double x, double y)
Set insertion points in projection units.
Definition rt_raster.c:203
rt_band_get_summary_stats
rt_bandstats rt_band_get_summary_stats(rt_band band, int exclude_nodata_value, double sample, int inc_vals, uint64_t *cK, double *cM, double *cQ)
Compute summary statistics for a band.
Definition rt_statistics.c:110
rt_band_get_height
uint16_t rt_band_get_height(rt_band band)
Return height of this band.
Definition rt_band.c:800
rt_raster_get_y_offset
double rt_raster_get_y_offset(rt_raster raster)
Get raster y offset, in projection units.
Definition rt_raster.c:226
rt_raster_get_band
rt_band rt_raster_get_band(rt_raster raster, int bandNum)
Return Nth band, or NULL if unavailable.
Definition rt_raster.c:385
cu_add_band
rt_band cu_add_band(rt_raster raster, rt_pixtype pixtype, int hasnodata, double nodataval)
Definition raster/test/cunit/cu_tester.c:224
cu_free_raster
void cu_free_raster(rt_raster raster)
Definition raster/test/cunit/cu_tester.c:211
cu_tester.h
rt_band_t
Definition librtcore.h:2503
rt_bandstats_t::mean
double mean
Definition librtcore.h:2555
rt_bandstats_t::max
double max
Definition librtcore.h:2553
rt_bandstats_t::min
double min
Definition librtcore.h:2552
rt_bandstats_t
Definition librtcore.h:2548
rt_gdaldriver_t
Definition librtcore.h:2675
rt_geomval_t::val
double val
Definition librtcore.h:2544
rt_geomval_t
Definition librtcore.h:2542
rt_raster_t
Definition librtcore.h:2474