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MySpatialUDF.cpp
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#define MSUDF_INTERNAL 1
#include "MySpatialUDF.h"
#include "GeometryUtils.h"
// #define ENABLE_DEBUG
#ifdef ENABLE_DEBUG
#define DEBUG(...) gu_debug(__VA_ARGS__);
#else
#define DEBUG(...)
#endif
static int initGeosInitialized = 0;
void msudf_init(UDF_INIT *initid)
{
msudf_params *params;
DEBUG("initGeosInitialized %d", initGeosInitialized);
if (!initGeosInitialized) {
DEBUG("Initializing GEOS ...");
initGeosInitialized = 1;
initGEOS(gu_debug,gu_debug);
}
params = (msudf_params *) malloc(sizeof(msudf_params));
params->pj_src = NULL;
params->pj_dst = NULL;
params->srid_src = 0;
params->srid_dst = 0;
params->buf = NULL;
initid->ptr = (char *)params;
}
void msudf_deinit(UDF_INIT *initid)
{
msudf_params *params;
if (initid->ptr != NULL) {
params = (msudf_params *) initid->ptr;
DEBUG("A punt per alliberar buf %p",params->buf);
if (params->buf != NULL) free(params->buf);
DEBUG("A punt per alliberar pj_src %p",params->pj_src);
if (params->pj_src != NULL) pj_free(params->pj_src);
DEBUG("A punt per alliberar pj_dst %p",params->pj_dst);
if (params->pj_dst != NULL) pj_free(params->pj_dst);
DEBUG("pj_dst OK");
free(initid->ptr);
DEBUG("punter OK");
initid->ptr = NULL;
}
}
char *msudf_returnGeometry(UDF_INIT *initid,unsigned long* length,GEOSGeom geom)
{
unsigned char *wkb;
msudf_params *params;
size_t wkbsize;
int srid;
wkb = GEOSGeomToWKB_buf(geom,&wkbsize);
*length = (long)wkbsize + 4;
srid = GEOSGetSRID(geom);
params = (msudf_params *) initid->ptr;
if (params->buf != NULL) free(params->buf);
params->buf = (char *) malloc(*length);
memcpy(params->buf,&srid,4);
memcpy((char *)params->buf + 4,wkb,wkbsize);
GEOSFree((char *)wkb);
return params->buf;
}
int msudf_getInt(const unsigned char *buf)
{
int result;
unsigned char *p = (unsigned char *)&result;
p[0] = buf[0];
p[1] = buf[1];
p[2] = buf[2];
p[3] = buf[3];
return result;
}
GEOSGeom msudf_getGeometry(unsigned char *buf,unsigned int length)
{
int srid;
GEOSGeom geom;
geom = GEOSGeomFromWKB_buf(buf + 4,length - 4);
if (geom != NULL) {
srid = msudf_getInt(buf);
GEOSSetSRID(geom,srid);
}
return geom;
}
my_bool msudf_boundary_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_boundary_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
initid->max_length= 0xFFFFFF;
msudf_init(initid);
return 0;
}
void msudf_boundary_deinit(UDF_INIT *initid)
{
DEBUG("msudf_boundary_deinit");
msudf_deinit(initid);
}
char *msudf_boundary(UDF_INIT *initid,UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
char *result;
GEOSGeom geom1,geom2;
DEBUG("msudf_boundary");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return NULL;
}
geom2 = GEOSBoundary(geom1);
if (geom2 != NULL) {
GEOSSetSRID(geom2,GEOSGetSRID(geom1));
result = msudf_returnGeometry(initid,length,geom2);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
return result;
} else {
GEOSGeom_destroy(geom1);
*is_null = 1;
return NULL;
}
}
my_bool msudf_buffer_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_buffer_init");
if (args->arg_count < 2 || args->arg_count > 3 ) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = REAL_RESULT;
if (args->arg_count > 2) {
args->arg_type[2] = INT_RESULT;
};
initid->max_length= 0xFFFFFF;
msudf_init(initid);
return 0;
}
void msudf_buffer_deinit(UDF_INIT *initid)
{
DEBUG("msudf_buffer_deinit");
msudf_deinit(initid);
}
char *msudf_buffer(UDF_INIT *initid,UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
char *result;
GEOSGeom geom1,geom2;
double buffer;
int quadsegs;
DEBUG("msudf_buffer");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return NULL;
}
buffer = *((double*) args->args[1]);
if (args->arg_count > 2 && args->arg_type[2] == INT_RESULT) {
quadsegs = *((int *)args->args[2]);
} else {
quadsegs = 8;
}
geom2 = GEOSBuffer(geom1,buffer,quadsegs);
if (geom2 != NULL) {
GEOSSetSRID(geom2,GEOSGetSRID(geom1));
result = msudf_returnGeometry(initid,length,geom2);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
return result;
} else {
GEOSGeom_destroy(geom1);
*is_null = 1;
return NULL;
}
}
my_bool msudf_centroid_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_centroid_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
initid->max_length= 0xFFFFFF;
msudf_init(initid);
return 0;
}
void msudf_centroid_deinit(UDF_INIT *initid)
{
DEBUG("msudf_centroid_deinit");
msudf_deinit(initid);
}
char *msudf_centroid(UDF_INIT *initid,UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
char *result;
GEOSGeom geom1,geom2;
DEBUG("msudf_centroid");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return NULL;
}
geom2 = GEOSGetCentroid(geom1);
if (geom2 != NULL) {
GEOSSetSRID(geom2,GEOSGetSRID(geom1));
result = msudf_returnGeometry(initid,length,geom2);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
return result;
} else {
GEOSGeom_destroy(geom1);
*is_null = 1;
return NULL;
}
}
my_bool msudf_contains_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_contains_init");
if (args->arg_count != 2) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_contains_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_contains(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_contains");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSContains(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_convexHull_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_convexHull_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
initid->max_length= 0xFFFFFF;
msudf_init(initid);
return 0;
}
void msudf_convexHull_deinit(UDF_INIT *initid)
{
DEBUG("msudf_convexHull_deinit");
msudf_deinit(initid);
}
char *msudf_convexHull(UDF_INIT *initid,UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
char *result;
GEOSGeom geom1,geom2;
DEBUG("msudf_convexHull");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return NULL;
}
geom2 = GEOSConvexHull(geom1);
if (geom2 != NULL) {
GEOSSetSRID(geom2,GEOSGetSRID(geom1));
result = msudf_returnGeometry(initid,length,geom2);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
return result;
} else {
GEOSGeom_destroy(geom1);
*is_null = 1;
return NULL;
}
}
my_bool msudf_crosses_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_crosses_init");
if (args->arg_count != 2) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_crosses_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_crosses(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_crosses");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSCrosses(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_difference_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_difference_init");
if (args->arg_count != 2 ) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
initid->max_length= 0xFFFFFF;
msudf_init(initid);
return 0;
}
void msudf_difference_deinit(UDF_INIT *initid)
{
DEBUG("msudf_difference_deinit");
msudf_deinit(initid);
}
char *msudf_difference(UDF_INIT *initid,UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
char *result;
GEOSGeom geomFirst,geomSecond,geomResult;
DEBUG("msudf_difference");
geomFirst = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geomFirst == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geomSecond = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geomSecond == NULL) {
GEOSGeom_destroy(geomFirst);
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geomResult = GEOSDifference(geomFirst,geomSecond);
if (geomResult!= NULL) {
GEOSSetSRID(geomResult,GEOSGetSRID(geomFirst));
result = msudf_returnGeometry(initid,length,geomResult);
GEOSGeom_destroy(geomFirst);
GEOSGeom_destroy(geomSecond);
GEOSGeom_destroy(geomResult);
return result;
} else {
GEOSGeom_destroy(geomFirst);
GEOSGeom_destroy(geomSecond);
*is_null = 1;
return NULL;
}
}
my_bool msudf_disjoint_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_disjoint_init");
if (args->arg_count != 2) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_disjoint_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_disjoint(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_disjoint");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSDisjoint(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_intersection_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_intersection_init");
if (args->arg_count != 2 ) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
initid->max_length= 0xFFFFFF;
msudf_init(initid);
return 0;
}
void msudf_intersection_deinit(UDF_INIT *initid)
{
DEBUG("msudf_intersection_deinit");
msudf_deinit(initid);
}
char *msudf_intersection(UDF_INIT *initid,UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
char *result;
GEOSGeom geomFirst,geomSecond,geomResult;
DEBUG("msudf_intersection");
geomFirst = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geomFirst == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geomSecond = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geomSecond == NULL) {
GEOSGeom_destroy(geomFirst);
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geomResult = GEOSIntersection(geomFirst,geomSecond);
if (geomResult!= NULL) {
GEOSSetSRID(geomResult,GEOSGetSRID(geomFirst));
result = msudf_returnGeometry(initid,length,geomResult);
GEOSGeom_destroy(geomFirst);
GEOSGeom_destroy(geomSecond);
GEOSGeom_destroy(geomResult);
return result;
} else {
GEOSGeom_destroy(geomFirst);
GEOSGeom_destroy(geomSecond);
*is_null = 1;
return NULL;
}
}
my_bool msudf_intersects_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_intersects_init");
if (args->arg_count != 2) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_intersects_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_intersects(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_intersects");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSIntersects(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_isEmpty_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_isEmpty_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_isEmpty_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_isEmpty(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom;
long long result;
DEBUG("msudf_isEmpty");
geom = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSisEmpty(geom);
if (geom != NULL) GEOSGeom_destroy(geom);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_isSimple_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_isSimple_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_isSimple_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_isSimple(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom;
long long result;
DEBUG("msudf_isSimple");
geom = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSisSimple(geom);
if (geom != NULL) GEOSGeom_destroy(geom);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_isRing_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_isRing_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_isRing_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_isRing(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom;
long long result;
DEBUG("msudf_isRing");
geom = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSisRing(geom);
if (geom != NULL) GEOSGeom_destroy(geom);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_isValid_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_isValid_init");
if (args->arg_count != 1) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_isValid_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_isValid(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom;
long long result;
DEBUG("msudf_isValid");
geom = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSisValid(geom);
if (geom != NULL) GEOSGeom_destroy(geom);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_overlaps_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_overlaps_init");
if (args->arg_count != 2) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_overlaps_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_overlaps(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_overlaps");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSOverlaps(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_touches_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_touches_init");
if (args->arg_count != 2) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_touches_deinit(UDF_INIT *initid)
{
msudf_deinit(initid);
}
long long msudf_touches(UDF_INIT *initid,UDF_ARGS *args,char *is_null, char *error)
{
GEOSGeom geom1,geom2;
long long result;
DEBUG("msudf_touches");
geom1 = msudf_getGeometry((unsigned char *)args->args[0],args->lengths[0]);
if (geom1 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
geom2 = msudf_getGeometry((unsigned char *)args->args[1],args->lengths[1]);
if (geom2 == NULL) {
strcpy(error,"Invalid geometry.");
*is_null = 1;
return 0;
}
result = GEOSTouches(geom1,geom2);
if (geom1 != NULL) GEOSGeom_destroy(geom1);
if (geom2 != NULL) GEOSGeom_destroy(geom2);
if (result >1) {
*is_null = 1;
return 0;
} else {
return result;
}
}
my_bool msudf_transform_init(UDF_INIT *initid,UDF_ARGS *args,char *message)
{
DEBUG("msudf_transform_init");
if (args->arg_count != 4) {
strcpy(message,"Wrong # arguments");
return 1;
}
args->arg_type[0] = STRING_RESULT;
args->arg_type[1] = STRING_RESULT;
args->arg_type[2] = INT_RESULT;
args->arg_type[3] = STRING_RESULT;
msudf_init(initid);
return 0;
}
void msudf_transform_deinit(UDF_INIT *initid)
{
DEBUG("msudf_transform_deinit");
msudf_deinit(initid);
}
char *msudf_transform(UDF_INIT *initid, UDF_ARGS *args, char *buf,
unsigned long *length, char *is_null, char *error)
{
unsigned char *wkb = NULL;
size_t wkbsize;
GEOSGeom g1,g2 =NULL;
msudf_params *params;
int srid_src,srid_dst;
params = (msudf_params *) initid->ptr;
DEBUG("msudf_transform");
wkb = (unsigned char *) (args->args[0]);
g1 = GEOSGeomFromWKB_buf(wkb + 4,args->lengths[0] - 4);
srid_src = msudf_getInt(wkb);
wkb = NULL;
DEBUG("srid_src: %d",srid_src);
if ((params->pj_src == NULL) || (params->srid_src != srid_src)) {
params->pj_src = pj_init_plus(args->args[1]);
params->srid_src = srid_src;
}
srid_dst = msudf_getInt((unsigned char *) args->args[2]);
DEBUG("srid_dst: %d",srid_dst);
if ((params->pj_dst == NULL) || (params->srid_dst != srid_dst)) {
params->pj_dst = pj_init_plus(args->args[3]);
params->srid_dst = srid_dst;