PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ RASTER_asRaster()

Datum RASTER_asRaster ( PG_FUNCTION_ARGS  )

Definition at line 723 of file rtpg_geometry.c.

724{
725 GSERIALIZED *gser = NULL;
726
727 LWGEOM *geom = NULL;
728 rt_raster rast = NULL;
729 rt_pgraster *pgrast = NULL;
730
731 unsigned char *wkb;
732 size_t wkb_len = 0;
733 unsigned char variant = WKB_SFSQL;
734
735 double scale[2] = {0};
736 double *scale_x = NULL;
737 double *scale_y = NULL;
738
739 int dim[2] = {0};
740 int *dim_x = NULL;
741 int *dim_y = NULL;
742
743 ArrayType *array;
744 Oid etype;
745 Datum *e;
746 bool *nulls;
747 int16 typlen;
748 bool typbyval;
749 char typalign;
750 int n = 0;
751 int i = 0;
752 int j = 0;
753 int haserr = 0;
754
755 text *pixeltypetext = NULL;
756 char *pixeltype = NULL;
757 rt_pixtype pixtype = PT_END;
758 rt_pixtype *pixtypes = NULL;
759 uint32_t pixtypes_len = 0;
760
761 double *values = NULL;
762 uint32_t values_len = 0;
763
764 uint8_t *hasnodatas = NULL;
765 double *nodatavals = NULL;
766 uint32_t nodatavals_len = 0;
767
768 double ulw[2] = {0};
769 double *ul_xw = NULL;
770 double *ul_yw = NULL;
771
772 double gridw[2] = {0};
773 double *grid_xw = NULL;
774 double *grid_yw = NULL;
775
776 double skew[2] = {0};
777 double *skew_x = NULL;
778 double *skew_y = NULL;
779
780 char **options = NULL;
781 int options_len = 0;
782
783 uint32_t num_bands = 0;
784
785 int32_t srid = SRID_UNKNOWN;
786 char *srs = NULL;
787
788 POSTGIS_RT_DEBUG(3, "RASTER_asRaster: Starting");
789
790 /* based upon LWGEOM_asBinary function in postgis/lwgeom_ogc.c */
791
792 /* Get the geometry */
793 if (PG_ARGISNULL(0))
794 PG_RETURN_NULL();
795
796 gser = PG_GETARG_GSERIALIZED_P(0);
797 geom = lwgeom_from_gserialized(gser);
798
799 /* Get a 2D version of the geometry if necessary */
800 if (lwgeom_ndims(geom) > 2) {
801 LWGEOM *geom2d = lwgeom_force_2d(geom);
802 lwgeom_free(geom);
803 geom = geom2d;
804 }
805
806 /* empty geometry, return empty raster */
807 if (lwgeom_is_empty(geom)) {
808 POSTGIS_RT_DEBUG(3, "Input geometry is empty. Returning empty raster");
809 lwgeom_free(geom);
810 PG_FREE_IF_COPY(gser, 0);
811
812 rast = rt_raster_new(0, 0);
813 if (rast == NULL)
814 PG_RETURN_NULL();
815
816 pgrast = rt_raster_serialize(rast);
817 rt_raster_destroy(rast);
818
819 if (NULL == pgrast)
820 PG_RETURN_NULL();
821
822 SET_VARSIZE(pgrast, pgrast->size);
823 PG_RETURN_POINTER(pgrast);
824 }
825
826 /* scale x */
827 if (!PG_ARGISNULL(1)) {
828 scale[0] = PG_GETARG_FLOAT8(1);
829 if (FLT_NEQ(scale[0], 0.0))
830 scale_x = &scale[0];
831 }
832
833 /* scale y */
834 if (!PG_ARGISNULL(2)) {
835 scale[1] = PG_GETARG_FLOAT8(2);
836 if (FLT_NEQ(scale[1], 0.0))
837 scale_y = &scale[1];
838 }
839 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: scale (x, y) = %f, %f", scale[0], scale[1]);
840
841 /* width */
842 if (!PG_ARGISNULL(3)) {
843 dim[0] = PG_GETARG_INT32(3);
844 if (dim[0] < 0) dim[0] = 0;
845 if (dim[0] != 0) dim_x = &dim[0];
846 }
847
848 /* height */
849 if (!PG_ARGISNULL(4)) {
850 dim[1] = PG_GETARG_INT32(4);
851 if (dim[1] < 0) dim[1] = 0;
852 if (dim[1] != 0) dim_y = &dim[1];
853 }
854 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: dim (x, y) = %d, %d", dim[0], dim[1]);
855
856 /* pixeltype */
857 if (!PG_ARGISNULL(5)) {
858 array = PG_GETARG_ARRAYTYPE_P(5);
859 etype = ARR_ELEMTYPE(array);
860 get_typlenbyvalalign(etype, &typlen, &typbyval, &typalign);
861
862 switch (etype) {
863 case TEXTOID:
864 break;
865 default:
866
867 lwgeom_free(geom);
868 PG_FREE_IF_COPY(gser, 0);
869
870 elog(ERROR, "RASTER_asRaster: Invalid data type for pixeltype");
871 PG_RETURN_NULL();
872 break;
873 }
874
875 deconstruct_array(array, etype, typlen, typbyval, typalign, &e,
876 &nulls, &n);
877
878 if (n) {
879 pixtypes = (rt_pixtype *) palloc(sizeof(rt_pixtype) * n);
880 /* clean each pixeltype */
881 for (i = 0, j = 0; i < n; i++) {
882 if (nulls[i]) {
883 pixtypes[j++] = PT_64BF;
884 continue;
885 }
886
887 pixeltype = NULL;
888 switch (etype) {
889 case TEXTOID:
890 pixeltypetext = (text *) DatumGetPointer(e[i]);
891 if (NULL == pixeltypetext) break;
892 pixeltype = text_to_cstring(pixeltypetext);
893
894 /* trim string */
895 pixeltype = rtpg_trim(pixeltype);
896 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: pixeltype is '%s'", pixeltype);
897 break;
898 }
899
900 if (strlen(pixeltype)) {
901 pixtype = rt_pixtype_index_from_name(pixeltype);
902 if (pixtype == PT_END) {
903
904 pfree(pixtypes);
905
906 lwgeom_free(geom);
907 PG_FREE_IF_COPY(gser, 0);
908
909 elog(ERROR, "RASTER_asRaster: Invalid pixel type provided: %s", pixeltype);
910 PG_RETURN_NULL();
911 }
912
913 pixtypes[j] = pixtype;
914 j++;
915 }
916 }
917
918 if (j > 0) {
919 /* trim allocation */
920 pixtypes = repalloc(pixtypes, j * sizeof(rt_pixtype));
921 pixtypes_len = j;
922 }
923 else {
924 pfree(pixtypes);
925 pixtypes = NULL;
926 pixtypes_len = 0;
927 }
928 }
929 }
930#if POSTGIS_DEBUG_LEVEL > 0
931 for (uint32_t u = 0; u < pixtypes_len; u++)
932 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: pixtypes[%u] = %u", i, pixtypes[i]);
933#endif
934
935 /* value */
936 if (!PG_ARGISNULL(6)) {
937 array = PG_GETARG_ARRAYTYPE_P(6);
938 etype = ARR_ELEMTYPE(array);
939 get_typlenbyvalalign(etype, &typlen, &typbyval, &typalign);
940
941 switch (etype) {
942 case FLOAT4OID:
943 case FLOAT8OID:
944 break;
945 default:
946
947 if (pixtypes_len) pfree(pixtypes);
948
949 lwgeom_free(geom);
950 PG_FREE_IF_COPY(gser, 0);
951
952 elog(ERROR, "RASTER_asRaster: Invalid data type for value");
953 PG_RETURN_NULL();
954 break;
955 }
956
957 deconstruct_array(array, etype, typlen, typbyval, typalign, &e,
958 &nulls, &n);
959
960 if (n) {
961 values = (double *) palloc(sizeof(double) * n);
962 for (i = 0, j = 0; i < n; i++) {
963 if (nulls[i]) {
964 values[j++] = 1;
965 continue;
966 }
967
968 switch (etype) {
969 case FLOAT4OID:
970 values[j] = (double) DatumGetFloat4(e[i]);
971 break;
972 case FLOAT8OID:
973 values[j] = (double) DatumGetFloat8(e[i]);
974 break;
975 }
976 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: values[%d] = %f", j, values[j]);
977
978 j++;
979 }
980
981 if (j > 0) {
982 /* trim allocation */
983 values = repalloc(values, j * sizeof(double));
984 values_len = j;
985 }
986 else {
987 pfree(values);
988 values = NULL;
989 values_len = 0;
990 }
991 }
992 }
993#if POSTGIS_DEBUG_LEVEL > 0
994 for (uint32_t u = 0; u < values_len; u++)
995 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: values[%u] = %f", i, values[i]);
996#endif
997
998 /* nodataval */
999 if (!PG_ARGISNULL(7)) {
1000 array = PG_GETARG_ARRAYTYPE_P(7);
1001 etype = ARR_ELEMTYPE(array);
1002 get_typlenbyvalalign(etype, &typlen, &typbyval, &typalign);
1003
1004 switch (etype) {
1005 case FLOAT4OID:
1006 case FLOAT8OID:
1007 break;
1008 default:
1009
1010 if (pixtypes_len) pfree(pixtypes);
1011 if (values_len) pfree(values);
1012
1013 lwgeom_free(geom);
1014 PG_FREE_IF_COPY(gser, 0);
1015
1016 elog(ERROR, "RASTER_asRaster: Invalid data type for nodataval");
1017 PG_RETURN_NULL();
1018 break;
1019 }
1020
1021 deconstruct_array(array, etype, typlen, typbyval, typalign, &e,
1022 &nulls, &n);
1023
1024 if (n) {
1025 nodatavals = (double *) palloc(sizeof(double) * n);
1026 hasnodatas = (uint8_t *) palloc(sizeof(uint8_t) * n);
1027 for (i = 0, j = 0; i < n; i++) {
1028 if (nulls[i]) {
1029 hasnodatas[j] = 0;
1030 nodatavals[j] = 0;
1031 j++;
1032 continue;
1033 }
1034
1035 hasnodatas[j] = 1;
1036 switch (etype) {
1037 case FLOAT4OID:
1038 nodatavals[j] = (double) DatumGetFloat4(e[i]);
1039 break;
1040 case FLOAT8OID:
1041 nodatavals[j] = (double) DatumGetFloat8(e[i]);
1042 break;
1043 }
1044 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: hasnodatas[%d] = %d", j, hasnodatas[j]);
1045 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: nodatavals[%d] = %f", j, nodatavals[j]);
1046
1047 j++;
1048 }
1049
1050 if (j > 0) {
1051 /* trim allocation */
1052 nodatavals = repalloc(nodatavals, j * sizeof(double));
1053 hasnodatas = repalloc(hasnodatas, j * sizeof(uint8_t));
1054 nodatavals_len = j;
1055 }
1056 else {
1057 pfree(nodatavals);
1058 pfree(hasnodatas);
1059 nodatavals = NULL;
1060 hasnodatas = NULL;
1061 nodatavals_len = 0;
1062 }
1063 }
1064 }
1065#if POSTGIS_DEBUG_LEVEL > 0
1066 for (uint32_t u = 0; u < nodatavals_len; u++)
1067 {
1068 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: hasnodatas[%u] = %d", u, hasnodatas[u]);
1069 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: nodatavals[%u] = %f", u, nodatavals[u]);
1070 }
1071#endif
1072
1073 /* upperleftx */
1074 if (!PG_ARGISNULL(8)) {
1075 ulw[0] = PG_GETARG_FLOAT8(8);
1076 ul_xw = &ulw[0];
1077 }
1078
1079 /* upperlefty */
1080 if (!PG_ARGISNULL(9)) {
1081 ulw[1] = PG_GETARG_FLOAT8(9);
1082 ul_yw = &ulw[1];
1083 }
1084 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: upperleft (x, y) = %f, %f", ulw[0], ulw[1]);
1085
1086 /* gridx */
1087 if (!PG_ARGISNULL(10)) {
1088 gridw[0] = PG_GETARG_FLOAT8(10);
1089 grid_xw = &gridw[0];
1090 }
1091
1092 /* gridy */
1093 if (!PG_ARGISNULL(11)) {
1094 gridw[1] = PG_GETARG_FLOAT8(11);
1095 grid_yw = &gridw[1];
1096 }
1097 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: grid (x, y) = %f, %f", gridw[0], gridw[1]);
1098
1099 /* check dependent variables */
1100 haserr = 0;
1101 do {
1102 /* only part of scale provided */
1103 if (
1104 (scale_x == NULL && scale_y != NULL) ||
1105 (scale_x != NULL && scale_y == NULL)
1106 ) {
1107 elog(NOTICE, "Values must be provided for both X and Y of scale if one is specified");
1108 haserr = 1;
1109 break;
1110 }
1111
1112 /* only part of dimension provided */
1113 if (
1114 (dim_x == NULL && dim_y != NULL) ||
1115 (dim_x != NULL && dim_y == NULL)
1116 ) {
1117 elog(NOTICE, "Values must be provided for both width and height if one is specified");
1118 haserr = 1;
1119 break;
1120 }
1121
1122 /* scale and dimension provided */
1123 if (
1124 (scale_x != NULL && scale_y != NULL) &&
1125 (dim_x != NULL && dim_y != NULL)
1126 ) {
1127 elog(NOTICE, "Values provided for X and Y of scale and width and height. Using the width and height");
1128 scale_x = NULL;
1129 scale_y = NULL;
1130 break;
1131 }
1132
1133 /* neither scale or dimension provided */
1134 if (
1135 (scale_x == NULL && scale_y == NULL) &&
1136 (dim_x == NULL && dim_y == NULL)
1137 ) {
1138 elog(NOTICE, "Values must be provided for X and Y of scale or width and height");
1139 haserr = 1;
1140 break;
1141 }
1142
1143 /* only part of upper-left provided */
1144 if (
1145 (ul_xw == NULL && ul_yw != NULL) ||
1146 (ul_xw != NULL && ul_yw == NULL)
1147 ) {
1148 elog(NOTICE, "Values must be provided for both X and Y when specifying the upper-left corner");
1149 haserr = 1;
1150 break;
1151 }
1152
1153 /* only part of alignment provided */
1154 if (
1155 (grid_xw == NULL && grid_yw != NULL) ||
1156 (grid_xw != NULL && grid_yw == NULL)
1157 ) {
1158 elog(NOTICE, "Values must be provided for both X and Y when specifying the alignment");
1159 haserr = 1;
1160 break;
1161 }
1162
1163 /* upper-left and alignment provided */
1164 if (
1165 (ul_xw != NULL && ul_yw != NULL) &&
1166 (grid_xw != NULL && grid_yw != NULL)
1167 ) {
1168 elog(NOTICE, "Values provided for both X and Y of upper-left corner and alignment. Using the values of upper-left corner");
1169 grid_xw = NULL;
1170 grid_yw = NULL;
1171 break;
1172 }
1173 }
1174 while (0);
1175
1176 if (haserr) {
1177 if (pixtypes_len) pfree(pixtypes);
1178 if (values_len) pfree(values);
1179 if (nodatavals_len) {
1180 pfree(nodatavals);
1181 pfree(hasnodatas);
1182 }
1183
1184 lwgeom_free(geom);
1185 PG_FREE_IF_COPY(gser, 0);
1186
1187 PG_RETURN_NULL();
1188 }
1189
1190 /* skewx */
1191 if (!PG_ARGISNULL(12)) {
1192 skew[0] = PG_GETARG_FLOAT8(12);
1193 if (FLT_NEQ(skew[0], 0.0))
1194 skew_x = &skew[0];
1195 }
1196
1197 /* skewy */
1198 if (!PG_ARGISNULL(13)) {
1199 skew[1] = PG_GETARG_FLOAT8(13);
1200 if (FLT_NEQ(skew[1], 0.0))
1201 skew_y = &skew[1];
1202 }
1203 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: skew (x, y) = %f, %f", skew[0], skew[1]);
1204
1205 /* all touched */
1206 if (!PG_ARGISNULL(14) && PG_GETARG_BOOL(14) == TRUE) {
1207 if (options_len == 0) {
1208 options_len = 1;
1209 options = (char **) palloc(sizeof(char *) * options_len);
1210 }
1211 else {
1212 options_len++;
1213 options = (char **) repalloc(options, sizeof(char *) * options_len);
1214 }
1215
1216 options[options_len - 1] = palloc(sizeof(char*) * (strlen("ALL_TOUCHED=TRUE") + 1));
1217 strcpy(options[options_len - 1], "ALL_TOUCHED=TRUE");
1218 }
1219
1220 if (options_len) {
1221 options_len++;
1222 options = (char **) repalloc(options, sizeof(char *) * options_len);
1223 options[options_len - 1] = NULL;
1224 }
1225
1226 /* get geometry's srid */
1227 srid = gserialized_get_srid(gser);
1228
1229 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: srid = %d", srid);
1230 if (clamp_srid(srid) != SRID_UNKNOWN) {
1231 srs = rtpg_getSR(srid);
1232 if (NULL == srs) {
1233
1234 if (pixtypes_len) pfree(pixtypes);
1235 if (values_len) pfree(values);
1236 if (nodatavals_len) {
1237 pfree(hasnodatas);
1238 pfree(nodatavals);
1239 }
1240 if (options_len) pfree(options);
1241
1242 lwgeom_free(geom);
1243 PG_FREE_IF_COPY(gser, 0);
1244
1245 elog(ERROR, "RASTER_asRaster: Could not find srtext for SRID (%d)", srid);
1246 PG_RETURN_NULL();
1247 }
1248 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: srs is %s", srs);
1249 }
1250 else
1251 srs = NULL;
1252
1253 /* determine number of bands */
1254 /* MIN macro is from GDAL's cpl_port.h */
1255 num_bands = MIN(pixtypes_len, values_len);
1256 num_bands = MIN(num_bands, nodatavals_len);
1257 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: pixtypes_len = %d", pixtypes_len);
1258 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: values_len = %d", values_len);
1259 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: nodatavals_len = %d", nodatavals_len);
1260 POSTGIS_RT_DEBUGF(3, "RASTER_asRaster: num_bands = %d", num_bands);
1261
1262 /* warn of imbalanced number of band elements */
1263 if (!(
1264 (pixtypes_len == values_len) &&
1265 (values_len == nodatavals_len)
1266 )) {
1267 elog(
1268 NOTICE,
1269 "Imbalanced number of values provided for pixeltype (%d), value (%d) and nodataval (%d). Using the first %d values of each parameter",
1270 pixtypes_len,
1271 values_len,
1272 nodatavals_len,
1273 num_bands
1274 );
1275 }
1276
1277 /* get wkb of geometry */
1278 POSTGIS_RT_DEBUG(3, "RASTER_asRaster: getting wkb of geometry");
1279 wkb = lwgeom_to_wkb(geom, variant, &wkb_len);
1280 lwgeom_free(geom);
1281 PG_FREE_IF_COPY(gser, 0);
1282
1283 /* rasterize geometry */
1284 POSTGIS_RT_DEBUG(3, "RASTER_asRaster: rasterizing geometry");
1285 /* use nodatavals for the init parameter */
1286 rast = rt_raster_gdal_rasterize(wkb,
1287 (uint32_t) wkb_len, srs,
1288 num_bands, pixtypes,
1289 nodatavals, values,
1290 nodatavals, hasnodatas,
1291 dim_x, dim_y,
1292 scale_x, scale_y,
1293 ul_xw, ul_yw,
1294 grid_xw, grid_yw,
1295 skew_x, skew_y,
1296 options
1297 );
1298
1299 if (pixtypes_len) pfree(pixtypes);
1300 if (values_len) pfree(values);
1301 if (nodatavals_len) {
1302 pfree(hasnodatas);
1303 pfree(nodatavals);
1304 }
1305 if (options_len) pfree(options);
1306
1307 if (!rast) {
1308 elog(ERROR, "RASTER_asRaster: Could not rasterize geometry");
1309 PG_RETURN_NULL();
1310 }
1311
1312 /* add target srid */
1313 rt_raster_set_srid(rast, srid);
1314
1315 pgrast = rt_raster_serialize(rast);
1316 rt_raster_destroy(rast);
1317
1318 if (NULL == pgrast) PG_RETURN_NULL();
1319
1320 POSTGIS_RT_DEBUG(3, "RASTER_asRaster: done");
1321
1322 SET_VARSIZE(pgrast, pgrast->size);
1323 PG_RETURN_POINTER(pgrast);
1324}
variant
static uint8_t variant
Definition cu_in_twkb.c:26
TRUE
#define TRUE
Definition dbfopen.c:169
gserialized_get_srid
int32_t gserialized_get_srid(const GSERIALIZED *g)
Extract the SRID from the serialized form (it is packed into three bytes so this is a handy function)...
Definition gserialized.c:126
lwgeom_from_gserialized
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition gserialized.c:239
lwgeom_ndims
int lwgeom_ndims(const LWGEOM *geom)
Return the number of dimensions (2, 3, 4) in a geometry.
Definition lwgeom.c:937
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition lwgeom.c:1138
lwgeom_force_2d
LWGEOM * lwgeom_force_2d(const LWGEOM *geom)
Strip out the Z/M components of an LWGEOM.
Definition lwgeom.c:775
lwgeom_to_wkb
uint8_t * lwgeom_to_wkb(const LWGEOM *geom, uint8_t variant, size_t *size_out)
Convert LWGEOM to a char* in WKB format.
Definition lwout_wkb.c:790
SRID_UNKNOWN
#define SRID_UNKNOWN
Unknown SRID value.
Definition liblwgeom.h:229
WKB_SFSQL
#define WKB_SFSQL
Definition liblwgeom.h:2122
clamp_srid
int32_t clamp_srid(int32_t srid)
Return a valid SRID from an arbitrary integer Raises a notice if what comes out is different from wha...
Definition lwutil.c:333
FLT_NEQ
#define FLT_NEQ(x, y)
Definition librtcore.h:2234
rt_pixtype_index_from_name
rt_pixtype rt_pixtype_index_from_name(const char *pixname)
Definition rt_pixel.c:80
rt_raster_destroy
void rt_raster_destroy(rt_raster raster)
Release memory associated to a raster.
Definition rt_raster.c:82
rt_pixtype
rt_pixtype
Definition librtcore.h:185
PT_END
@ PT_END
Definition librtcore.h:197
PT_64BF
@ PT_64BF
Definition librtcore.h:196
rt_raster_new
rt_raster rt_raster_new(uint32_t width, uint32_t height)
Construct a raster with given dimensions.
Definition rt_raster.c:48
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:2504
rt_raster_set_srid
void rt_raster_set_srid(rt_raster raster, int32_t srid)
Set raster's SRID.
Definition rt_raster.c:363
rt_raster_serialize
void * rt_raster_serialize(rt_raster raster)
Return this raster in serialized form.
Definition rt_serialize.c:521
lwgeom_is_empty
static int lwgeom_is_empty(const LWGEOM *geom)
Return true or false depending on whether a geometry is an "empty" geometry (no vertices members)
Definition lwinline.h:193
text_to_cstring
char * text_to_cstring(const text *textptr)
rtpg_getSR
char * rtpg_getSR(int32_t srid)
Definition rtpg_internal.c:282
rtpg_trim
char * rtpg_trim(const char *input)
Definition rtpg_internal.c:226
POSTGIS_RT_DEBUG
#define POSTGIS_RT_DEBUG(level, msg)
Definition rtpostgis.h:61
POSTGIS_RT_DEBUGF
#define POSTGIS_RT_DEBUGF(level, msg,...)
Definition rtpostgis.h:65
MIN
#define MIN(a, b)
Definition shpopen.c:283
rt_raster_serialized_t::size
uint32_t size
Definition librtcore.h:2253
rt_raster_serialized_t
Struct definitions.
Definition librtcore.h:2251
rt_raster_t
Definition librtcore.h:2285

References clamp_srid(), FLT_NEQ, gserialized_get_srid(), lwgeom_force_2d(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_is_empty(), lwgeom_ndims(), lwgeom_to_wkb(), MIN, POSTGIS_RT_DEBUG, POSTGIS_RT_DEBUGF, PT_64BF, PT_END, rt_pixtype_index_from_name(), rt_raster_destroy(), rt_raster_gdal_rasterize(), rt_raster_new(), rt_raster_serialize(), rt_raster_set_srid(), rtpg_getSR(), rtpg_trim(), rt_raster_serialized_t::size, rt_raster_serialized_t::srid, SRID_UNKNOWN, text_to_cstring(), TRUE, variant, and WKB_SFSQL.

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