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Spatial code changed to get rid of inconsistent this->* operation

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Now we use virtual calls instead and redirect VMT pointer of the
geometry object with 'new' operation


sql/field.cc:
  Usage of the Geometry class changed
sql/item_geofunc.cc:
  Usage of the Geometry class changed
sql/spatial.cc:
  Now we rewrite the real VMT of the object with new operation
sql/spatial.h:
  No need for the VMT-like structure and pointers to it
sql/sql_yacc.yy:
  enum items was renamed accordingly to coding standards
This commit is contained in:
unknown 2004-03-12 12:04:00 +04:00
parent 188535bba0
commit f84ec3c062
5 changed files with 497 additions and 447 deletions
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18
sql/field.cc
View file

@ -4765,7 +4765,8 @@ void Field_blob::get_key_image(char *buff,uint length,
{
const char *dummy;
MBR mbr;
Geometry gobj;
Geometry_buffer buffer;
Geometry *gobj;
if (blob_length < SRID_SIZE)
{
@ -4773,8 +4774,9 @@ void Field_blob::get_key_image(char *buff,uint length,
return;
}
get_ptr(&blob);
gobj.create_from_wkb(blob + SRID_SIZE, blob_length - SRID_SIZE);
if (gobj.get_mbr(&mbr, &dummy))
gobj= Geometry::create_from_wkb(&buffer,
blob + SRID_SIZE, blob_length - SRID_SIZE);
if (gobj->get_mbr(&mbr, &dummy))
bzero(buff, SIZEOF_STORED_DOUBLE*4);
else
{
@ -5013,9 +5015,11 @@ void Field_geom::get_key_image(char *buff, uint length, CHARSET_INFO *cs,
return;
}
get_ptr(&blob);
Geometry gobj;
gobj.create_from_wkb(blob + SRID_SIZE, blob_length - SRID_SIZE);
if (gobj.get_mbr(&mbr, &dummy))
Geometry_buffer buffer;
Geometry *gobj;
gobj= Geometry::create_from_wkb(&buffer,
blob + SRID_SIZE, blob_length - SRID_SIZE);
if (gobj->get_mbr(&mbr, &dummy))
bzero(buff, SIZEOF_STORED_DOUBLE*4);
else
{
@ -5075,7 +5079,7 @@ int Field_geom::store(const char *from, uint length, CHARSET_INFO *cs)
if (length < SRID_SIZE + WKB_HEADER_SIZE + SIZEOF_STORED_DOUBLE*2)
goto err;
wkb_type= uint4korr(from + WKB_HEADER_SIZE);
if (wkb_type < (uint32) Geometry::wkbPoint ||
if (wkb_type < (uint32) Geometry::wkb_point ||
wkb_type > (uint32) Geometry::wkb_end)
return 1;
Field_blob::store_length(length);

249
sql/item_geofunc.cc
View file

@ -30,7 +30,8 @@
String *Item_func_geometry_from_text::val_str(String *str)
{
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
String arg_val;
String *wkt= args[0]->val_str(&arg_val);
Gis_read_stream trs(wkt->c_ptr(), wkt->length());
@ -43,7 +44,8 @@ String *Item_func_geometry_from_text::val_str(String *str)
return 0;
str->length(0);
str->q_append(srid);
if ((null_value=(args[0]->null_value || geom.create_from_wkt(&trs, str, 0))))
if ((null_value=(args[0]->null_value ||
!(geom= Geometry::create_from_wkt(&buffer, &trs, str, 0)))))
return 0;
return str;
}
@ -59,7 +61,8 @@ String *Item_func_geometry_from_wkb::val_str(String *str)
{
String arg_val;
String *wkb= args[0]->val_str(&arg_val);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
uint32 srid= 0;
if ((arg_count == 2) && !args[1]->null_value)
@ -69,9 +72,10 @@ String *Item_func_geometry_from_wkb::val_str(String *str)
return 0;
str->length(0);
str->q_append(srid);
if ((null_value= (args[0]->null_value ||
geom.create_from_wkb(wkb->ptr(), wkb->length()))) ||
str->append(*wkb))
if ((null_value=
(args[0]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, wkb->ptr(), wkb->length())) ||
str->append(*wkb))))
return 0;
return str;
}
@ -87,16 +91,18 @@ String *Item_func_as_wkt::val_str(String *str)
{
String arg_val;
String *swkb= args[0]->val_str(&arg_val);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom= NULL;
const char *dummy;
if ((null_value= (args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
if ((null_value=
(args[0]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)))))
return 0;
str->length(0);
if ((null_value= geom.as_wkt(str, &dummy)))
if ((null_value= geom->as_wkt(str, &dummy)))
return 0;
return str;
@ -113,11 +119,13 @@ String *Item_func_as_wkb::val_str(String *str)
{
String arg_val;
String *swkb= args[0]->val_str(&arg_val);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
if ((null_value= (args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
if ((null_value=
(args[0]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)))))
return 0;
str->copy(swkb->ptr() + SRID_SIZE, swkb->length() - SRID_SIZE,
@ -135,15 +143,17 @@ void Item_func_as_wkb::fix_length_and_dec()
String *Item_func_geometry_type::val_str(String *str)
{
String *swkb= args[0]->val_str(str);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom= NULL;
if ((null_value= (args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
if ((null_value=
(args[0]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)))))
return 0;
/* String will not move */
str->set(geom.get_class_info()->m_name.str,
geom.get_class_info()->m_name.length,
str->set(geom->get_class_info()->m_name.str,
geom->get_class_info()->m_name.length,
default_charset());
return str;
}
@ -153,12 +163,14 @@ String *Item_func_envelope::val_str(String *str)
{
String arg_val;
String *swkb= args[0]->val_str(&arg_val);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom= NULL;
uint32 srid;
if ((null_value= args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)))
if ((null_value=
args[0]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
return 0;
srid= uint4korr(swkb->ptr());
@ -166,7 +178,7 @@ String *Item_func_envelope::val_str(String *str)
if (str->reserve(SRID_SIZE, 512))
return 0;
str->q_append(srid);
return (null_value= geom.envelope(str)) ? 0 : str;
return (null_value= geom->envelope(str)) ? 0 : str;
}
@ -174,13 +186,13 @@ String *Item_func_centroid::val_str(String *str)
{
String arg_val;
String *swkb= args[0]->val_str(&arg_val);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom= NULL;
uint32 srid;
if ((null_value= args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, centroid)))
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
return 0;
if (str->reserve(SRID_SIZE, 512))
@ -189,7 +201,7 @@ String *Item_func_centroid::val_str(String *str)
srid= uint4korr(swkb->ptr());
str->q_append(srid);
return (null_value= test(geom.centroid(str))) ? 0 : str;
return (null_value= test(geom->centroid(str))) ? 0 : str;
}
@ -201,12 +213,14 @@ String *Item_func_spatial_decomp::val_str(String *str)
{
String arg_val;
String *swkb= args[0]->val_str(&arg_val);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom= NULL;
uint32 srid;
if ((null_value= (args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
if ((null_value=
(args[0]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)))))
return 0;
srid= uint4korr(swkb->ptr());
@ -216,17 +230,17 @@ String *Item_func_spatial_decomp::val_str(String *str)
str->q_append(srid);
switch (decomp_func) {
case SP_STARTPOINT:
if (!GEOM_METHOD_PRESENT(geom,start_point) || geom.start_point(str))
if (geom->start_point(str))
goto err;
break;
case SP_ENDPOINT:
if (!GEOM_METHOD_PRESENT(geom,end_point) || geom.end_point(str))
if (geom->end_point(str))
goto err;
break;
case SP_EXTERIORRING:
if (!GEOM_METHOD_PRESENT(geom,exterior_ring) || geom.exterior_ring(str))
if (geom->exterior_ring(str))
goto err;
break;
@ -246,12 +260,14 @@ String *Item_func_spatial_decomp_n::val_str(String *str)
String arg_val;
String *swkb= args[0]->val_str(&arg_val);
long n= (long) args[1]->val_int();
Geometry geom;
Geometry_buffer buffer;
Geometry *geom= NULL;
uint32 srid;
if ((null_value= (args[0]->null_value || args[1]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE))))
if ((null_value=
(args[0]->null_value || args[1]->null_value ||
!(geom= Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)))))
return 0;
if (str->reserve(SRID_SIZE, 512))
@ -262,18 +278,17 @@ String *Item_func_spatial_decomp_n::val_str(String *str)
switch (decomp_func_n)
{
case SP_POINTN:
if (!GEOM_METHOD_PRESENT(geom,point_n) || geom.point_n(n,str))
if (geom->point_n(n,str))
goto err;
break;
case SP_GEOMETRYN:
if (!GEOM_METHOD_PRESENT(geom,geometry_n) || geom.geometry_n(n,str))
if (geom->geometry_n(n,str))
goto err;
break;
case SP_INTERIORRINGN:
if (!GEOM_METHOD_PRESENT(geom,interior_ring_n) ||
geom.interior_ring_n(n,str))
if (geom->interior_ring_n(n,str))
goto err;
break;
@ -309,8 +324,8 @@ String *Item_func_point::val_str(String *str)
return 0;
str->length(0);
str->q_append((char)Geometry::wkbNDR);
str->q_append((uint32)Geometry::wkbPoint);
str->q_append((char)Geometry::wkb_ndr);
str->q_append((uint32)Geometry::wkb_point);
str->q_append(x);
str->q_append(y);
return str;
@ -336,7 +351,7 @@ String *Item_func_spatial_collection::val_str(String *str)
if (str->reserve(1 + 4 + 4, 512))
goto err;
str->q_append((char) Geometry::wkbNDR);
str->q_append((char) Geometry::wkb_ndr);
str->q_append((uint32) coll_type);
str->q_append((uint32) arg_count);
@ -346,7 +361,7 @@ String *Item_func_spatial_collection::val_str(String *str)
if (args[i]->null_value)
goto err;
if (coll_type == Geometry::wkbGeometryCollection)
if (coll_type == Geometry::wkb_geometrycollection)
{
/*
In the case of GeometryCollection we don't need any checkings
@ -375,19 +390,19 @@ String *Item_func_spatial_collection::val_str(String *str)
goto err;
switch (coll_type) {
case Geometry::wkbMultiPoint:
case Geometry::wkbMultiLineString:
case Geometry::wkbMultiPolygon:
case Geometry::wkb_multipoint:
case Geometry::wkb_multilinestring:
case Geometry::wkb_multipolygon:
if (len < WKB_HEADER_SIZE ||
str->append(data-WKB_HEADER_SIZE, len+WKB_HEADER_SIZE, 512))
goto err;
break;
case Geometry::wkbLineString:
case Geometry::wkb_linestring:
if (str->append(data, POINT_DATA_SIZE, 512))
goto err;
break;
case Geometry::wkbPolygon:
case Geometry::wkb_polygon:
{
uint32 n_points;
double x1, y1, x2, y2;
@ -439,18 +454,20 @@ longlong Item_func_spatial_rel::val_int()
{
String *res1= args[0]->val_str(&tmp_value1);
String *res2= args[1]->val_str(&tmp_value2);
Geometry g1, g2;
Geometry_buffer buffer1, buffer2;
Geometry *g1, *g2;
MBR mbr1, mbr2;
const char *dummy;
if ((null_value= (args[0]->null_value ||
if ((null_value=
(args[0]->null_value ||
args[1]->null_value ||
g1.create_from_wkb(res1->ptr() + SRID_SIZE,
res1->length() - SRID_SIZE) ||
g2.create_from_wkb(res2->ptr() + SRID_SIZE,
res2->length() - SRID_SIZE) ||
g1.get_mbr(&mbr1, &dummy) ||
g2.get_mbr(&mbr2, &dummy))))
!(g1= Geometry::create_from_wkb(&buffer1, res1->ptr() + SRID_SIZE,
res1->length() - SRID_SIZE)) ||
!(g2= Geometry::create_from_wkb(&buffer2, res2->ptr() + SRID_SIZE,
res2->length() - SRID_SIZE)) ||
g1->get_mbr(&mbr1, &dummy) ||
g2->get_mbr(&mbr2, &dummy))))
return 0;
switch (spatial_rel) {
@ -503,15 +520,16 @@ longlong Item_func_isclosed::val_int()
{
String tmp;
String *swkb= args[0]->val_str(&tmp);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
int isclosed= 0; // In case of error
null_value= (!swkb ||
args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom,is_closed) ||
geom.is_closed(&isclosed));
!(geom=
Geometry::create_from_wkb(&buffer, swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->is_closed(&isclosed));
return (longlong) isclosed;
}
@ -525,14 +543,16 @@ longlong Item_func_dimension::val_int()
{
uint32 dim= 0; // In case of error
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
const char *dummy;
null_value= (!swkb ||
args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
geom.dimension(&dim, &dummy));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->dimension(&dim, &dummy));
return (longlong) dim;
}
@ -541,13 +561,14 @@ longlong Item_func_numinteriorring::val_int()
{
uint32 num= 0; // In case of error
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, num_interior_ring) ||
geom.num_interior_ring(&num));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->num_interior_ring(&num));
return (longlong) num;
}
@ -556,13 +577,14 @@ longlong Item_func_numgeometries::val_int()
{
uint32 num= 0; // In case of errors
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, num_geometries) ||
geom.num_geometries(&num));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->num_geometries(&num));
return (longlong) num;
}
@ -571,14 +593,15 @@ longlong Item_func_numpoints::val_int()
{
uint32 num= 0; // In case of errors
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
args[0]->null_value ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, num_points) ||
geom.num_points(&num));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->num_points(&num));
return (longlong) num;
}
@ -587,13 +610,14 @@ double Item_func_x::val()
{
double res= 0.0; // In case of errors
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, get_x) ||
geom.get_x(&res));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->get_x(&res));
return res;
}
@ -602,13 +626,14 @@ double Item_func_y::val()
{
double res= 0; // In case of errors
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, get_y) ||
geom.get_y(&res));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->get_y(&res));
return res;
}
@ -617,14 +642,15 @@ double Item_func_area::val()
{
double res= 0; // In case of errors
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
const char *dummy;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, area) ||
geom.area(&res, &dummy));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->area(&res, &dummy));
return res;
}
@ -632,23 +658,26 @@ double Item_func_glength::val()
{
double res= 0; // In case of errors
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE) ||
!GEOM_METHOD_PRESENT(geom, length) ||
geom.length(&res));
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE)) ||
geom->length(&res));
return res;
}
longlong Item_func_srid::val_int()
{
String *swkb= args[0]->val_str(&value);
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
null_value= (!swkb ||
geom.create_from_wkb(swkb->ptr() + SRID_SIZE,
null_value= !swkb ||
!(geom= Geometry::create_from_wkb(&buffer,
swkb->ptr() + SRID_SIZE,
swkb->length() - SRID_SIZE));
if (null_value)
return 0;

386
sql/spatial.cc
View file

@ -19,91 +19,105 @@
/***************************** Gis_class_info *******************************/
#define IMPLEMENT_GEOM(class_name, type_id, name) \
{ \
(GF_InitFromText) &class_name::init_from_wkt, \
(GF_GetDataAsText) &class_name::get_data_as_wkt, \
(GF_GetDataSize) &class_name::get_data_size, \
(GF_GetMBR) &class_name::get_mbr, \
(GF_GetD) &class_name::get_x, \
(GF_GetD) &class_name::get_y, \
(GF_GetD) &class_name::length, \
(GF_GetD_AND_END) &class_name::area, \
(GF_GetI) &class_name::is_closed, \
(GF_GetUI) &class_name::num_interior_ring, \
(GF_GetUI) &class_name::num_points, \
(GF_GetUI) &class_name::num_geometries, \
(GF_GetUI_AND_END) &class_name::dimension, \
(GF_GetWS) &class_name::start_point, \
(GF_GetWS) &class_name::end_point, \
(GF_GetWS) &class_name::exterior_ring, \
(GF_GetWS) &class_name::centroid, \
(GF_GetUIWS) &class_name::point_n, \
(GF_GetUIWS) &class_name::interior_ring_n, \
(GF_GetUIWS) &class_name::geometry_n, \
name, \
class_name::type_id, \
NULL \
}
static LEX_STRING_WITH_INIT point_name("POINT", 5);
static LEX_STRING_WITH_INIT linestring_name("LINESTRING", 10);
static LEX_STRING_WITH_INIT polygon_name("POLYGON",7);
static LEX_STRING_WITH_INIT multipoint_name("MULTIPOINT",10);
static LEX_STRING_WITH_INIT multilinestring_name("MULTILINESTRING",15);
static LEX_STRING_WITH_INIT multipolygon_name("MULTIPOLYGON",12);
static LEX_STRING_WITH_INIT geometrycollection_name("GEOMETRYCOLLECTION",18);
static Geometry::Gis_class_info ci_collection[]=
Geometry::Class_info *Geometry::ci_collection[Geometry::wkb_end]=
{
IMPLEMENT_GEOM(Gis_point, wkbPoint, point_name),
IMPLEMENT_GEOM(Gis_line_string, wkbLineString, linestring_name),
IMPLEMENT_GEOM(Gis_polygon, wkbPolygon, polygon_name),
IMPLEMENT_GEOM(Gis_multi_point, wkbMultiPoint, multipoint_name),
IMPLEMENT_GEOM(Gis_multi_line_stringg, wkbMultiLineString, multilinestring_name),
IMPLEMENT_GEOM(Gis_multi_polygon, wkbMultiPolygon, multipolygon_name),
IMPLEMENT_GEOM(Gis_geometry_collection, wkbGeometryCollection,
geometrycollection_name)
NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
static Geometry::Gis_class_info *ci_collection_end=
(ci_collection + array_elements(ci_collection));
static Geometry::Class_info **ci_collection_end=
Geometry::ci_collection+Geometry::wkb_end;
Geometry::Class_info::Class_info(const char *name, int type_id,
void(*create_func)(void *)):
m_name(name, strlen(name)), m_type_id(type_id), m_create_func(create_func)
{
ci_collection[type_id]= this;
}
static void create_point(void *buffer)
{
new(buffer) Gis_point;
}
static void create_linestring(void *buffer)
{
new(buffer) Gis_line_string;
}
static void create_polygon(void *buffer)
{
new(buffer) Gis_polygon;
}
static void create_multipoint(void *buffer)
{
new(buffer) Gis_multi_point;
}
static void create_multipolygon(void *buffer)
{
new(buffer) Gis_multi_polygon;
}
static void create_multilinestring(void *buffer)
{
new(buffer) Gis_multi_line_string;
}
static void create_geometrycollection(void *buffer)
{
new(buffer) Gis_geometry_collection;
}
static Geometry::Class_info point_class("POINT",
Geometry::wkb_point, create_point);
static Geometry::Class_info linestring_class("LINESTRING",
Geometry::wkb_linestring,
create_linestring);
static Geometry::Class_info polygon_class("POLYGON",
Geometry::wkb_polygon,
create_polygon);
static Geometry::Class_info multipoint_class("MULTIPOINT",
Geometry::wkb_multipoint,
create_multipoint);
static Geometry::Class_info
multilinestring_class("MULTILINESTRING",
Geometry::wkb_multilinestring, create_multilinestring);
static Geometry::Class_info multipolygon_class("MULTIPOLYGON",
Geometry::wkb_multipolygon,
create_multipolygon);
static Geometry::Class_info
geometrycollection_class("GEOMETRYCOLLECTION",Geometry::wkb_geometrycollection,
create_geometrycollection);
/***************************** Geometry *******************************/
Geometry::Gis_class_info *Geometry::find_class(int type_id)
Geometry::Class_info *Geometry::find_class(const char *name, uint32 len)
{
for (Gis_class_info *cur_rt= ci_collection; cur_rt < ci_collection_end; cur_rt++)
for (Class_info **cur_rt= ci_collection;
cur_rt < ci_collection_end; cur_rt++)
{
if (cur_rt->m_type_id == type_id)
return cur_rt;
}
return 0;
}
Geometry::Gis_class_info *Geometry::find_class(const char *name, uint32 len)
{
for (Gis_class_info *cur_rt= ci_collection; cur_rt < ci_collection_end; cur_rt++)
{
if ((cur_rt->m_name.length == len) &&
if (*cur_rt &&
((*cur_rt)->m_name.length == len) &&
(my_strnncoll(&my_charset_latin1,
(const uchar*) cur_rt->m_name.str, len,
(const uchar*) (*cur_rt)->m_name.str, len,
(const uchar*) name, len) == 0))
return cur_rt;
return *cur_rt;
}
return 0;
}
int Geometry::create_from_wkb(const char *data, uint32 data_len)
Geometry *Geometry::create_from_wkb(Geometry_buffer *buffer,
const char *data, uint32 data_len)
{
uint32 geom_type;
Geometry *result;
if (data_len < 1 + 4)
return 1;
return NULL;
data++;
/*
FIXME: check byte ordering
@ -111,39 +125,44 @@ int Geometry::create_from_wkb(const char *data, uint32 data_len)
*/
geom_type= uint4korr(data);
data+= 4;
if (!(m_vmt= find_class((int) geom_type)))
return 1;
m_data= data;
m_data_end= data + data_len;
return 0;
if (!(result= create_by_typeid(buffer, (int) geom_type)))
return NULL;
result->m_data= data;
result->m_data_end= data + data_len;
return result;
}
int Geometry::create_from_wkt(Gis_read_stream *trs, String *wkt,
Geometry *Geometry::create_from_wkt(Geometry_buffer *buffer,
Gis_read_stream *trs, String *wkt,
bool init_stream)
{
LEX_STRING name;
Class_info *ci;
if (trs->get_next_word(&name))
{
trs->set_error_msg("Geometry name expected");
return 1;
return NULL;
}
if (!(m_vmt= find_class(name.str, name.length)) ||
if (!(ci= find_class(name.str, name.length)) ||
wkt->reserve(1 + 4, 512))
return 1;
wkt->q_append((char) wkbNDR);
wkt->q_append((uint32) get_class_info()->m_type_id);
return NULL;
(*ci->m_create_func)((void *)buffer);
Geometry *result= (Geometry *)buffer;
wkt->q_append((char) wkb_ndr);
wkt->q_append((uint32) result->get_class_info()->m_type_id);
if (trs->check_next_symbol('(') ||
init_from_wkt(trs, wkt) ||
result->init_from_wkt(trs, wkt) ||
trs->check_next_symbol(')'))
return 1;
return NULL;
if (init_stream)
{
init_from_wkb(wkt->ptr(), wkt->length());
shift_wkb_header();
result->init_from_wkb(wkt->ptr(), wkt->length());
result->shift_wkb_header();
}
return 0;
return result;
}
@ -155,8 +174,8 @@ bool Geometry::envelope(String *result) const
if (get_mbr(&mbr, &end) || result->reserve(1+4*3+SIZEOF_STORED_DOUBLE*10))
return 1;
result->q_append((char) wkbNDR);
result->q_append((uint32) wkbPolygon);
result->q_append((char) wkb_ndr);
result->q_append((uint32) wkb_polygon);
result->q_append((uint32) 1);
result->q_append((uint32) 5);
result->q_append(mbr.xmin);
@ -187,13 +206,13 @@ bool Geometry::envelope(String *result) const
1 Can't reallocate 'result'
*/
bool Geometry::create_point(String *result, const char *data)
bool Geometry::create_point(String *result, const char *data) const
{
if (no_data(data, SIZEOF_STORED_DOUBLE * 2) ||
result->reserve(1 + 4 + SIZEOF_STORED_DOUBLE * 2))
return 1;
result->q_append((char) wkbNDR);
result->q_append((uint32) wkbPoint);
result->q_append((char) wkb_ndr);
result->q_append((uint32) wkb_point);
/* Copy two double in same format */
result->q_append(data, SIZEOF_STORED_DOUBLE*2);
return 0;
@ -213,13 +232,13 @@ bool Geometry::create_point(String *result, const char *data)
1 Can't reallocate 'result'
*/
bool Geometry::create_point(String *result, double x, double y)
bool Geometry::create_point(String *result, double x, double y) const
{
if (result->reserve(1 + 4 + SIZEOF_STORED_DOUBLE * 2))
return 1;
result->q_append((char) wkbNDR);
result->q_append((uint32) wkbPoint);
result->q_append((char) wkb_ndr);
result->q_append((uint32) wkb_point);
result->q_append(x);
result->q_append(y);
return 0;
@ -240,7 +259,7 @@ bool Geometry::create_point(String *result, double x, double y)
*/
const char *Geometry::append_points(String *txt, uint32 n_points,
const char *data, uint32 offset)
const char *data, uint32 offset) const
{
while (n_points--)
{
@ -317,7 +336,7 @@ bool Gis_point::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_point::get_data_as_wkt(String *txt, const char **end)
bool Gis_point::get_data_as_wkt(String *txt, const char **end) const
{
double x, y;
if (get_xy(&x, &y))
@ -332,7 +351,7 @@ bool Gis_point::get_data_as_wkt(String *txt, const char **end)
}
int Gis_point::get_mbr(MBR *mbr, const char **end) const
bool Gis_point::get_mbr(MBR *mbr, const char **end) const
{
double x, y;
if (get_xy(&x, &y))
@ -342,6 +361,11 @@ int Gis_point::get_mbr(MBR *mbr, const char **end) const
return 0;
}
const Geometry::Class_info *Gis_point::get_class_info() const
{
return &point_class;
}
/***************************** LineString *******************************/
@ -381,7 +405,7 @@ bool Gis_line_string::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_line_string::get_data_as_wkt(String *txt, const char **end)
bool Gis_line_string::get_data_as_wkt(String *txt, const char **end) const
{
uint32 n_points;
const char *data= m_data;
@ -419,7 +443,7 @@ bool Gis_line_string::get_mbr(MBR *mbr, const char **end) const
}
bool Gis_line_string::length(double *len) const
int Gis_line_string::length(double *len) const
{
uint32 n_points;
double prev_x, prev_y;
@ -451,7 +475,7 @@ bool Gis_line_string::length(double *len) const
}
bool Gis_line_string::is_closed(int *closed) const
int Gis_line_string::is_closed(int *closed) const
{
uint32 n_points;
double x1, y1, x2, y2;
@ -478,21 +502,21 @@ bool Gis_line_string::is_closed(int *closed) const
}
bool Gis_line_string::num_points(uint32 *n_points) const
int Gis_line_string::num_points(uint32 *n_points) const
{
*n_points= uint4korr(m_data);
return 0;
}
bool Gis_line_string::start_point(String *result)
int Gis_line_string::start_point(String *result) const
{
/* +4 is for skipping over number of points */
return create_point(result, m_data + 4);
}
bool Gis_line_string::end_point(String *result)
int Gis_line_string::end_point(String *result) const
{
uint32 n_points;
if (no_data(m_data, 4))
@ -502,7 +526,7 @@ bool Gis_line_string::end_point(String *result)
}
bool Gis_line_string::point_n(uint32 num, String *result)
int Gis_line_string::point_n(uint32 num, String *result) const
{
uint32 n_points;
if (no_data(m_data, 4))
@ -514,6 +538,11 @@ bool Gis_line_string::point_n(uint32 num, String *result)
return create_point(result, m_data + 4 + (num - 1) * POINT_DATA_SIZE);
}
const Geometry::Class_info *Gis_line_string::get_class_info() const
{
return &linestring_class;
}
/***************************** Polygon *******************************/
@ -570,7 +599,7 @@ bool Gis_polygon::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_polygon::get_data_as_wkt(String *txt, const char **end)
bool Gis_polygon::get_data_as_wkt(String *txt, const char **end) const
{
uint32 n_linear_rings;
const char *data= m_data;
@ -622,7 +651,7 @@ bool Gis_polygon::get_mbr(MBR *mbr, const char **end) const
}
bool Gis_polygon::area(double *ar, const char **end_of_data) const
int Gis_polygon::area(double *ar, const char **end_of_data) const
{
uint32 n_linear_rings;
double result= -1.0;
@ -671,7 +700,7 @@ bool Gis_polygon::area(double *ar, const char **end_of_data) const
}
bool Gis_polygon::exterior_ring(String *result)
int Gis_polygon::exterior_ring(String *result) const
{
uint32 n_points, length;
const char *data= m_data + 4; // skip n_linerings
@ -684,15 +713,15 @@ bool Gis_polygon::exterior_ring(String *result)
if (no_data(data, length) || result->reserve(1+4+4+ length))
return 1;
result->q_append((char) wkbNDR);
result->q_append((uint32) wkbLineString);
result->q_append((char) wkb_ndr);
result->q_append((uint32) wkb_linestring);
result->q_append(n_points);
result->q_append(data, n_points * POINT_DATA_SIZE);
return 0;
}
bool Gis_polygon::num_interior_ring(uint32 *n_int_rings) const
int Gis_polygon::num_interior_ring(uint32 *n_int_rings) const
{
if (no_data(m_data, 4))
return 1;
@ -701,7 +730,7 @@ bool Gis_polygon::num_interior_ring(uint32 *n_int_rings) const
}
bool Gis_polygon::interior_ring_n(uint32 num, String *result) const
int Gis_polygon::interior_ring_n(uint32 num, String *result) const
{
const char *data= m_data;
uint32 n_linear_rings;
@ -730,8 +759,8 @@ bool Gis_polygon::interior_ring_n(uint32 num, String *result) const
if (no_data(data, points_size) || result->reserve(1+4+4+ points_size))
return 1;
result->q_append((char) wkbNDR);
result->q_append((uint32) wkbLineString);
result->q_append((char) wkb_ndr);
result->q_append((uint32) wkb_linestring);
result->q_append(n_points);
result->q_append(data, points_size);
@ -739,7 +768,7 @@ bool Gis_polygon::interior_ring_n(uint32 num, String *result) const
}
bool Gis_polygon::centroid_xy(double *x, double *y) const
int Gis_polygon::centroid_xy(double *x, double *y) const
{
uint32 n_linear_rings;
double res_area, res_cx, res_cy;
@ -812,7 +841,7 @@ bool Gis_polygon::centroid_xy(double *x, double *y) const
}
bool Gis_polygon::centroid(String *result)
int Gis_polygon::centroid(String *result) const
{
double x, y;
if (centroid_xy(&x, &y))
@ -820,6 +849,11 @@ bool Gis_polygon::centroid(String *result)
return create_point(result, x, y);
}
const Geometry::Class_info *Gis_polygon::get_class_info() const
{
return &polygon_class;
}
/***************************** MultiPoint *******************************/
@ -845,8 +879,8 @@ bool Gis_multi_point::init_from_wkt(Gis_read_stream *trs, String *wkb)
{
if (wkb->reserve(1+4, 512))
return 1;
wkb->q_append((char) wkbNDR);
wkb->q_append((uint32) wkbPoint);
wkb->q_append((char) wkb_ndr);
wkb->q_append((uint32) wkb_point);
if (p.init_from_wkt(trs, wkb))
return 1;
n_points++;
@ -858,7 +892,7 @@ bool Gis_multi_point::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_multi_point::get_data_as_wkt(String *txt, const char **end)
bool Gis_multi_point::get_data_as_wkt(String *txt, const char **end) const
{
uint32 n_points;
if (no_data(m_data, 4))
@ -881,14 +915,14 @@ bool Gis_multi_point::get_mbr(MBR *mbr, const char **end) const
}
bool Gis_multi_point::num_geometries(uint32 *num) const
int Gis_multi_point::num_geometries(uint32 *num) const
{
*num= uint4korr(m_data);
return 0;
}
bool Gis_multi_point::geometry_n(uint32 num, String *result) const
int Gis_multi_point::geometry_n(uint32 num, String *result) const
{
const char *data= m_data;
uint32 n_points;
@ -907,10 +941,15 @@ bool Gis_multi_point::geometry_n(uint32 num, String *result) const
return 0;
}
const Geometry::Class_info *Gis_multi_point::get_class_info() const
{
return &multipoint_class;
}
/***************************** MultiLineString *******************************/
uint32 Gis_multi_line_stringg::get_data_size() const
uint32 Gis_multi_line_string::get_data_size() const
{
uint32 n_line_strings;
const char *data= m_data;
@ -931,7 +970,7 @@ uint32 Gis_multi_line_stringg::get_data_size() const
}
bool Gis_multi_line_stringg::init_from_wkt(Gis_read_stream *trs, String *wkb)
bool Gis_multi_line_string::init_from_wkt(Gis_read_stream *trs, String *wkb)
{
uint32 n_line_strings= 0;
uint32 ls_pos= wkb->length();
@ -946,8 +985,8 @@ bool Gis_multi_line_stringg::init_from_wkt(Gis_read_stream *trs, String *wkb)
if (wkb->reserve(1+4, 512))
return 1;
wkb->q_append((char) wkbNDR);
wkb->q_append((uint32) wkbLineString);
wkb->q_append((char) wkb_ndr);
wkb->q_append((uint32) wkb_linestring);
if (trs->check_next_symbol('(') ||
ls.init_from_wkt(trs, wkb) ||
@ -962,7 +1001,8 @@ bool Gis_multi_line_stringg::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_multi_line_stringg::get_data_as_wkt(String *txt, const char **end)
bool Gis_multi_line_string::get_data_as_wkt(String *txt,
const char **end) const
{
uint32 n_line_strings;
const char *data= m_data;
@ -993,7 +1033,7 @@ bool Gis_multi_line_stringg::get_data_as_wkt(String *txt, const char **end)
}
bool Gis_multi_line_stringg::get_mbr(MBR *mbr, const char **end) const
bool Gis_multi_line_string::get_mbr(MBR *mbr, const char **end) const
{
uint32 n_line_strings;
const char *data= m_data;
@ -1014,14 +1054,14 @@ bool Gis_multi_line_stringg::get_mbr(MBR *mbr, const char **end) const
}
bool Gis_multi_line_stringg::num_geometries(uint32 *num) const
int Gis_multi_line_string::num_geometries(uint32 *num) const
{
*num= uint4korr(m_data);
return 0;
}
bool Gis_multi_line_stringg::geometry_n(uint32 num, String *result) const
int Gis_multi_line_string::geometry_n(uint32 num, String *result) const
{
uint32 n_line_strings, n_points, length;
const char *data= m_data;
@ -1050,7 +1090,7 @@ bool Gis_multi_line_stringg::geometry_n(uint32 num, String *result) const
}
bool Gis_multi_line_stringg::length(double *len) const
int Gis_multi_line_string::length(double *len) const
{
uint32 n_line_strings;
const char *data= m_data;
@ -1080,7 +1120,7 @@ bool Gis_multi_line_stringg::length(double *len) const
}
bool Gis_multi_line_stringg::is_closed(int *closed) const
int Gis_multi_line_string::is_closed(int *closed) const
{
uint32 n_line_strings;
const char *data= m_data;
@ -1109,6 +1149,11 @@ bool Gis_multi_line_stringg::is_closed(int *closed) const
return 0;
}
const Geometry::Class_info *Gis_multi_line_string::get_class_info() const
{
return &multilinestring_class;
}
/***************************** MultiPolygon *******************************/
@ -1156,8 +1201,8 @@ bool Gis_multi_polygon::init_from_wkt(Gis_read_stream *trs, String *wkb)
{
if (wkb->reserve(1+4, 512))
return 1;
wkb->q_append((char) wkbNDR);
wkb->q_append((uint32) wkbPolygon);
wkb->q_append((char) wkb_ndr);
wkb->q_append((uint32) wkb_polygon);
if (trs->check_next_symbol('(') ||
p.init_from_wkt(trs, wkb) ||
@ -1172,7 +1217,7 @@ bool Gis_multi_polygon::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_multi_polygon::get_data_as_wkt(String *txt, const char **end)
bool Gis_multi_polygon::get_data_as_wkt(String *txt, const char **end) const
{
uint32 n_polygons;
const char *data= m_data;
@ -1245,14 +1290,14 @@ bool Gis_multi_polygon::get_mbr(MBR *mbr, const char **end) const
}
bool Gis_multi_polygon::num_geometries(uint32 *num) const
int Gis_multi_polygon::num_geometries(uint32 *num) const
{
*num= uint4korr(m_data);
return 0;
}
bool Gis_multi_polygon::geometry_n(uint32 num, String *result) const
int Gis_multi_polygon::geometry_n(uint32 num, String *result) const
{
uint32 n_polygons;
const char *data= m_data, *start_of_polygon;
@ -1291,7 +1336,7 @@ bool Gis_multi_polygon::geometry_n(uint32 num, String *result) const
}
bool Gis_multi_polygon::area(double *ar, const char **end_of_data) const
int Gis_multi_polygon::area(double *ar, const char **end_of_data) const
{
uint32 n_polygons;
const char *data= m_data;
@ -1319,7 +1364,7 @@ bool Gis_multi_polygon::area(double *ar, const char **end_of_data) const
}
bool Gis_multi_polygon::centroid(String *result)
int Gis_multi_polygon::centroid(String *result) const
{
uint32 n_polygons;
bool first_loop= 1;
@ -1363,6 +1408,11 @@ bool Gis_multi_polygon::centroid(String *result)
return create_point(result, res_cx, res_cy);
}
const Geometry::Class_info *Gis_multi_polygon::get_class_info() const
{
return &multipolygon_class;
}
/************************* GeometryCollection ****************************/
@ -1370,6 +1420,8 @@ uint32 Gis_geometry_collection::get_data_size() const
{
uint32 n_objects;
const char *data= m_data;
Geometry_buffer buffer;
Geometry *geom;
if (no_data(data, 4))
return GET_SIZE_ERROR;
@ -1379,17 +1431,16 @@ uint32 Gis_geometry_collection::get_data_size() const
while (n_objects--)
{
uint32 wkb_type,object_size;
Geometry geom;
if (no_data(data, WKB_HEADER_SIZE))
return GET_SIZE_ERROR;
wkb_type= uint4korr(data + 1);
data+= WKB_HEADER_SIZE;
if (geom.init(wkb_type))
if (!(geom= create_by_typeid(&buffer, wkb_type)))
return GET_SIZE_ERROR;
geom.init_from_wkb(data, (uint) (m_data_end - data));
if ((object_size= geom.get_data_size()) == GET_SIZE_ERROR)
geom->init_from_wkb(data, (uint) (m_data_end - data));
if ((object_size= geom->get_data_size()) == GET_SIZE_ERROR)
return GET_SIZE_ERROR;
data+= object_size;
}
@ -1401,7 +1452,8 @@ bool Gis_geometry_collection::init_from_wkt(Gis_read_stream *trs, String *wkb)
{
uint32 n_objects= 0;
uint32 no_pos= wkb->length();
Geometry g;
Geometry_buffer buffer;
Geometry *g;
if (wkb->reserve(4, 512))
return 1;
@ -1409,10 +1461,10 @@ bool Gis_geometry_collection::init_from_wkt(Gis_read_stream *trs, String *wkb)
for (;;)
{
if (g.create_from_wkt(trs, wkb))
if (!(g= create_from_wkt(&buffer, trs, wkb)))
return 1;
if (g.get_class_info()->m_type_id == wkbGeometryCollection)
if (g->get_class_info()->m_type_id == wkb_geometrycollection)
{
trs->set_error_msg("Unexpected GEOMETRYCOLLECTION");
return 1;
@ -1427,10 +1479,12 @@ bool Gis_geometry_collection::init_from_wkt(Gis_read_stream *trs, String *wkb)
}
bool Gis_geometry_collection::get_data_as_wkt(String *txt, const char **end)
bool Gis_geometry_collection::get_data_as_wkt(String *txt,
const char **end) const
{
uint32 n_objects;
Geometry geom;
Geometry_buffer buffer;
Geometry *geom;
const char *data= m_data;
if (no_data(data, 4))
@ -1447,10 +1501,10 @@ bool Gis_geometry_collection::get_data_as_wkt(String *txt, const char **end)
wkb_type= uint4korr(data + 1);
data+= WKB_HEADER_SIZE;
if (geom.init(wkb_type))
if (!(geom= create_by_typeid(&buffer, wkb_type)))
return 1;
geom.init_from_wkb(data, (uint) (m_data_end - data));
if (geom.as_wkt(txt, &data))
geom->init_from_wkb(data, (uint) (m_data_end - data));
if (geom->as_wkt(txt, &data))
return 1;
if (txt->append(",", 1, 512))
return 1;
@ -1465,6 +1519,8 @@ bool Gis_geometry_collection::get_mbr(MBR *mbr, const char **end) const
{
uint32 n_objects;
const char *data= m_data;
Geometry_buffer buffer;
Geometry *geom;
if (no_data(data, 4))
return 1;
@ -1474,17 +1530,16 @@ bool Gis_geometry_collection::get_mbr(MBR *mbr, const char **end) const
while (n_objects--)
{
uint32 wkb_type;
Geometry geom;
if (no_data(data, WKB_HEADER_SIZE))
return 1;
wkb_type= uint4korr(data + 1);
data+= WKB_HEADER_SIZE;
if (geom.init(wkb_type))
if (!(geom= create_by_typeid(&buffer, wkb_type)))
return 1;
geom.init_from_wkb(data, (uint32) (m_data_end - data));
if (geom.get_mbr(mbr, &data))
geom->init_from_wkb(data, (uint32) (m_data_end - data));
if (geom->get_mbr(mbr, &data))
return 1;
}
*end= data;
@ -1492,7 +1547,7 @@ bool Gis_geometry_collection::get_mbr(MBR *mbr, const char **end) const
}
bool Gis_geometry_collection::num_geometries(uint32 *num) const
int Gis_geometry_collection::num_geometries(uint32 *num) const
{
if (no_data(m_data, 4))
return 1;
@ -1501,10 +1556,12 @@ bool Gis_geometry_collection::num_geometries(uint32 *num) const
}
bool Gis_geometry_collection::geometry_n(uint32 num, String *result) const
int Gis_geometry_collection::geometry_n(uint32 num, String *result) const
{
uint32 n_objects, wkb_type, length;
const char *data= m_data;
Geometry_buffer buffer;
Geometry *geom;
if (no_data(data, 4))
return 1;
@ -1515,17 +1572,15 @@ bool Gis_geometry_collection::geometry_n(uint32 num, String *result) const
do
{
Geometry geom;
if (no_data(data, WKB_HEADER_SIZE))
return 1;
wkb_type= uint4korr(data + 1);
data+= WKB_HEADER_SIZE;
if (geom.init(wkb_type))
if (!(geom= create_by_typeid(&buffer, wkb_type)))
return 1;
geom.init_from_wkb(data, (uint) (m_data_end - data));
if ((length= geom.get_data_size()) == GET_SIZE_ERROR)
geom->init_from_wkb(data, (uint) (m_data_end - data));
if ((length= geom->get_data_size()) == GET_SIZE_ERROR)
return 1;
data+= length;
} while (--num);
@ -1533,7 +1588,7 @@ bool Gis_geometry_collection::geometry_n(uint32 num, String *result) const
/* Copy found object to result */
if (result->reserve(1+4+length))
return 1;
result->q_append((char) wkbNDR);
result->q_append((char) wkb_ndr);
result->q_append((uint32) wkb_type);
result->q_append(data-length, length); // data-length = start_of_data
return 0;
@ -1557,6 +1612,8 @@ bool Gis_geometry_collection::dimension(uint32 *res_dim, const char **end) const
{
uint32 n_objects;
const char *data= m_data;
Geometry_buffer buffer;
Geometry *geom;
if (no_data(data, 4))
return 1;
@ -1568,21 +1625,20 @@ bool Gis_geometry_collection::dimension(uint32 *res_dim, const char **end) const
{
uint32 wkb_type, length, dim;
const char *end_data;
Geometry geom;
if (no_data(data, WKB_HEADER_SIZE))
return 1;
wkb_type= uint4korr(data + 1);
data+= WKB_HEADER_SIZE;
if (geom.init(wkb_type))
if (!(geom= create_by_typeid(&buffer, wkb_type)))
return 1;
geom.init_from_wkb(data, (uint32) (m_data_end - data));
if (geom.dimension(&dim, &end_data))
geom->init_from_wkb(data, (uint32) (m_data_end - data));
if (geom->dimension(&dim, &end_data))
return 1;
set_if_bigger(*res_dim, dim);
if (end_data) // Complex object
data= end_data;
else if ((length= geom.get_data_size()) == GET_SIZE_ERROR)
else if ((length= geom->get_data_size()) == GET_SIZE_ERROR)
return 1;
else
data+= length;
@ -1590,3 +1646,9 @@ bool Gis_geometry_collection::dimension(uint32 *res_dim, const char **end) const
*end= data;
return 0;
}
const Geometry::Class_info *Gis_geometry_collection::get_class_info() const
{
return &geometrycollection_class;
}

271
sql/spatial.h
View file

@ -152,142 +152,80 @@ struct MBR
/***************************** Geometry *******************************/
class Geometry;
typedef bool (Geometry::*GF_InitFromText)(Gis_read_stream *, String *);
typedef bool (Geometry::*GF_GetDataAsText)(String *, const char **);
typedef uint32 (Geometry::*GF_GetDataSize)() const;
typedef bool (Geometry::*GF_GetMBR)(MBR *, const char **end) const;
typedef bool (Geometry::*GF_GetD)(double *) const;
typedef bool (Geometry::*GF_GetD_AND_END)(double *, const char **) const;
typedef bool (Geometry::*GF_GetI)(int *) const;
typedef bool (Geometry::*GF_GetUI)(uint32 *) const;
typedef bool (Geometry::*GF_GetUI_AND_END)(uint32 *, const char **) const;
typedef bool (Geometry::*GF_GetWS)(String *);
typedef bool (Geometry::*GF_GetUIWS)(uint32, String *) const;
#define GEOM_METHOD_PRESENT(geom_obj, method)\
(geom_obj.m_vmt->method != &Geometry::method)
struct Geometry_buffer;
class Geometry
{
public:
static void *operator new(unsigned size_t, void *buffer)
{
return buffer;
}
enum wkbType
{
wkbPoint= 1,
wkbLineString= 2,
wkbPolygon= 3,
wkbMultiPoint= 4,
wkbMultiLineString= 5,
wkbMultiPolygon= 6,
wkbGeometryCollection= 7,
wkb_end=8
wkb_point= 1,
wkb_linestring= 2,
wkb_polygon= 3,
wkb_multipoint= 4,
wkb_multilinestring= 5,
wkb_multipolygon= 6,
wkb_geometrycollection= 7,
wkb_end=7
};
enum wkbByteOrder
{
wkbXDR= 0, /* Big Endian */
wkbNDR= 1 /* Little Endian */
wkb_xdr= 0, /* Big Endian */
wkb_ndr= 1 /* Little Endian */
};
class Gis_class_info
class Class_info
{
public:
GF_InitFromText init_from_wkt;
GF_GetDataAsText get_data_as_wkt;
GF_GetDataSize get_data_size;
GF_GetMBR get_mbr;
GF_GetD get_x;
GF_GetD get_y;
GF_GetD length;
GF_GetD_AND_END area;
GF_GetI is_closed;
GF_GetUI num_interior_ring;
GF_GetUI num_points;
GF_GetUI num_geometries;
GF_GetUI_AND_END dimension;
GF_GetWS start_point;
GF_GetWS end_point;
GF_GetWS exterior_ring;
GF_GetWS centroid;
GF_GetUIWS point_n;
GF_GetUIWS interior_ring_n;
GF_GetUIWS geometry_n;
LEX_STRING m_name;
LEX_STRING_WITH_INIT m_name;
int m_type_id;
Gis_class_info *m_next_rt;
void (*m_create_func)(void *);
Class_info(const char *name, int type_id, void(*create_func)(void *));
};
Gis_class_info *m_vmt;
const Gis_class_info *get_class_info() const { return m_vmt; }
uint32 get_data_size() const { return (this->*m_vmt->get_data_size)(); }
bool init_from_wkt(Gis_read_stream *trs, String *wkb)
{ return (this->*m_vmt->init_from_wkt)(trs, wkb); }
bool get_data_as_wkt(String *txt, const char **end)
{ return (this->*m_vmt->get_data_as_wkt)(txt, end); }
int get_mbr(MBR *mbr, const char **end) const
{ return (this->*m_vmt->get_mbr)(mbr, end); }
bool dimension(uint32 *dim, const char **end) const
{
return (this->*m_vmt->dimension)(dim, end);
}
bool get_x(double *x) const { return (this->*m_vmt->get_x)(x); }
bool get_y(double *y) const { return (this->*m_vmt->get_y)(y); }
bool length(double *len) const { return (this->*m_vmt->length)(len); }
bool area(double *ar, const char **end) const
{
return (this->*m_vmt->area)(ar, end);
}
bool is_closed(int *closed) const
{ return (this->*m_vmt->is_closed)(closed); }
bool num_interior_ring(uint32 *n_int_rings) const
{ return (this->*m_vmt->num_interior_ring)(n_int_rings); }
bool num_points(uint32 *n_points) const
{ return (this->*m_vmt->num_points)(n_points); }
bool num_geometries(uint32 *num) const
{ return (this->*m_vmt->num_geometries)(num); }
bool start_point(String *point)
{ return (this->*m_vmt->start_point)(point); }
bool end_point(String *point)
{ return (this->*m_vmt->end_point)(point); }
bool exterior_ring(String *ring)
{ return (this->*m_vmt->exterior_ring)(ring); }
bool centroid(String *point)
{ return (this->*m_vmt->centroid)(point); }
bool point_n(uint32 num, String *result) const
{ return (this->*m_vmt->point_n)(num, result); }
bool interior_ring_n(uint32 num, String *result) const
{ return (this->*m_vmt->interior_ring_n)(num, result); }
bool geometry_n(uint32 num, String *result) const
{ return (this->*m_vmt->geometry_n)(num, result); }
virtual const Class_info *get_class_info() const=0;
virtual uint32 get_data_size() const=0;
virtual bool init_from_wkt(Gis_read_stream *trs, String *wkb)=0;
virtual bool get_data_as_wkt(String *txt, const char **end) const=0;
virtual bool get_mbr(MBR *mbr, const char **end) const=0;
virtual bool dimension(uint32 *dim, const char **end) const=0;
virtual int get_x(double *x) const { return -1; }
virtual int get_y(double *y) const { return -1; }
virtual int length(double *len) const { return -1; }
virtual int area(double *ar, const char **end) const { return -1;}
virtual int is_closed(int *closed) const { return -1; }
virtual int num_interior_ring(uint32 *n_int_rings) const { return -1; }
virtual int num_points(uint32 *n_points) const { return -1; }
virtual int num_geometries(uint32 *num) const { return -1; }
virtual int start_point(String *point) const { return -1; }
virtual int end_point(String *point) const { return -1; }
virtual int exterior_ring(String *ring) const { return -1; }
virtual int centroid(String *point) const { return -1; }
virtual int point_n(uint32 num, String *result) const { return -1; }
virtual int interior_ring_n(uint32 num, String *result) const { return -1; }
virtual int geometry_n(uint32 num, String *result) const { return -1; }
public:
int create_from_wkb(const char *data, uint32 data_len);
int create_from_wkt(Gis_read_stream *trs, String *wkt, bool init_stream=1);
int init(int type_id)
static Geometry *Geometry::create_by_typeid(Geometry_buffer *buffer,
int type_id)
{
m_vmt= find_class(type_id);
return !m_vmt;
}
int new_geometry(const char *name, uint32 len)
{
m_vmt= find_class(name, len);
return !m_vmt;
Class_info *ci;
if (!(ci= find_class((int) type_id)))
return NULL;
(*ci->m_create_func)((void *)buffer);
return (Geometry *)buffer;
}
static Geometry *create_from_wkb(Geometry_buffer *buffer,
const char *data, uint32 data_len);
static Geometry *create_from_wkt(Geometry_buffer *buffer,
Gis_read_stream *trs, String *wkt,
bool init_stream=1);
int as_wkt(String *wkt, const char **end)
{
uint32 len= get_class_info()->m_name.length;
@ -313,14 +251,19 @@ public:
}
bool envelope(String *result) const;
static Geometry::Class_info *ci_collection[Geometry::wkb_end];
protected:
static Gis_class_info *find_class(int type_id);
static Gis_class_info *find_class(const char *name, uint32 len);
static Class_info *find_class(int type_id)
{
return ((type_id < wkb_point) || (type_id > wkb_end)) ?
NULL : ci_collection[type_id];
}
static Class_info *find_class(const char *name, uint32 len);
const char *append_points(String *txt, uint32 n_points,
const char *data, uint32 offset);
bool create_point(String *result, const char *data);
bool create_point(String *result, double x, double y);
const char *data, uint32 offset) const;
bool create_point(String *result, const char *data) const;
bool create_point(String *result, double x, double y) const;
const char *get_mbr_for_points(MBR *mbr, const char *data, uint offset)
const;
@ -340,10 +283,10 @@ class Gis_point: public Geometry
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
int get_mbr(MBR *mbr, const char **end) const;
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool get_xy(double *x, double *y) const
int get_xy(double *x, double *y) const
{
const char *data= m_data;
if (no_data(data, SIZEOF_STORED_DOUBLE * 2))
@ -353,7 +296,7 @@ public:
return 0;
}
bool get_x(double *x) const
int get_x(double *x) const
{
if (no_data(m_data, SIZEOF_STORED_DOUBLE))
return 1;
@ -361,7 +304,7 @@ public:
return 0;
}
bool get_y(double *y) const
int get_y(double *y) const
{
const char *data= m_data;
if (no_data(data, SIZEOF_STORED_DOUBLE * 2)) return 1;
@ -375,6 +318,7 @@ public:
*end= 0; /* No default end */
return 0;
}
const Class_info *get_class_info() const;
};
@ -385,20 +329,21 @@ class Gis_line_string: public Geometry
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool length(double *len) const;
bool is_closed(int *closed) const;
bool num_points(uint32 *n_points) const;
bool start_point(String *point);
bool end_point(String *point);
bool point_n(uint32 n, String *result);
int length(double *len) const;
int is_closed(int *closed) const;
int num_points(uint32 *n_points) const;
int start_point(String *point) const;
int end_point(String *point) const;
int point_n(uint32 n, String *result) const;
bool dimension(uint32 *dim, const char **end) const
{
*dim= 1;
*end= 0; /* No default end */
return 0;
}
const Class_info *get_class_info() const;
};
@ -409,20 +354,21 @@ class Gis_polygon: public Geometry
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool area(double *ar, const char **end) const;
bool exterior_ring(String *result);
bool num_interior_ring(uint32 *n_int_rings) const;
bool interior_ring_n(uint32 num, String *result) const;
bool centroid_xy(double *x, double *y) const;
bool centroid(String *result);
int area(double *ar, const char **end) const;
int exterior_ring(String *result) const;
int num_interior_ring(uint32 *n_int_rings) const;
int interior_ring_n(uint32 num, String *result) const;
int centroid_xy(double *x, double *y) const;
int centroid(String *result) const;
bool dimension(uint32 *dim, const char **end) const
{
*dim= 2;
*end= 0; /* No default end */
return 0;
}
const Class_info *get_class_info() const;
};
@ -433,38 +379,40 @@ class Gis_multi_point: public Geometry
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool num_geometries(uint32 *num) const;
bool geometry_n(uint32 num, String *result) const;
int num_geometries(uint32 *num) const;
int geometry_n(uint32 num, String *result) const;
bool dimension(uint32 *dim, const char **end) const
{
*dim= 0;
*end= 0; /* No default end */
return 0;
}
const Class_info *get_class_info() const;
};
/***************************** MultiLineString *******************************/
class Gis_multi_line_stringg: public Geometry
class Gis_multi_line_string: public Geometry
{
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool num_geometries(uint32 *num) const;
bool geometry_n(uint32 num, String *result) const;
bool length(double *len) const;
bool is_closed(int *closed) const;
int num_geometries(uint32 *num) const;
int geometry_n(uint32 num, String *result) const;
int length(double *len) const;
int is_closed(int *closed) const;
bool dimension(uint32 *dim, const char **end) const
{
*dim= 1;
*end= 0; /* No default end */
return 0;
}
const Class_info *get_class_info() const;
};
@ -475,19 +423,19 @@ class Gis_multi_polygon: public Geometry
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool num_geometries(uint32 *num) const;
bool geometry_n(uint32 num, String *result) const;
bool area(double *ar, const char **end) const;
bool centroid(String *result);
int num_geometries(uint32 *num) const;
int geometry_n(uint32 num, String *result) const;
int area(double *ar, const char **end) const;
int centroid(String *result) const;
bool dimension(uint32 *dim, const char **end) const
{
*dim= 2;
*end= 0; /* No default end */
return 0;
}
const Class_info *get_class_info() const;
};
@ -498,11 +446,18 @@ class Gis_geometry_collection: public Geometry
public:
uint32 get_data_size() const;
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
bool get_data_as_wkt(String *txt, const char **end);
bool get_data_as_wkt(String *txt, const char **end) const;
bool get_mbr(MBR *mbr, const char **end) const;
bool num_geometries(uint32 *num) const;
bool geometry_n(uint32 num, String *result) const;
int num_geometries(uint32 *num) const;
int geometry_n(uint32 num, String *result) const;
bool dimension(uint32 *dim, const char **end) const;
const Class_info *get_class_info() const;
};
const int geometry_buffer_size= sizeof(Gis_point);
struct Geometry_buffer
{
void *arr[(geometry_buffer_size - 1)/sizeof(void *) + 1];
};
#endif

14
sql/sql_yacc.yy
View file

@ -2941,14 +2941,14 @@ geometry_function:
{ $$= GEOM_NEW(Item_func_geometry_from_wkb($3, $5)); }
| GEOMETRYCOLLECTION '(' expr_list ')'
{ $$= GEOM_NEW(Item_func_spatial_collection(* $3,
Geometry::wkbGeometryCollection,
Geometry::wkbPoint)); }
Geometry::wkb_geometrycollection,
Geometry::wkb_point)); }
| LINESTRING '(' expr_list ')'
{ $$= GEOM_NEW(Item_func_spatial_collection(* $3,
Geometry::wkbLineString, Geometry::wkbPoint)); }
Geometry::wkb_linestring, Geometry::wkb_point)); }
| MULTILINESTRING '(' expr_list ')'
{ $$= GEOM_NEW( Item_func_spatial_collection(* $3,
Geometry::wkbMultiLineString, Geometry::wkbLineString)); }
Geometry::wkb_multilinestring, Geometry::wkb_linestring)); }
| MLINEFROMTEXT '(' expr ')'
{ $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
| MLINEFROMTEXT '(' expr ',' expr ')'
@ -2963,10 +2963,10 @@ geometry_function:
{ $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
| MULTIPOINT '(' expr_list ')'
{ $$= GEOM_NEW(Item_func_spatial_collection(* $3,
Geometry::wkbMultiPoint, Geometry::wkbPoint)); }
Geometry::wkb_multipoint, Geometry::wkb_point)); }
| MULTIPOLYGON '(' expr_list ')'
{ $$= GEOM_NEW(Item_func_spatial_collection(* $3,
Geometry::wkbMultiPolygon, Geometry::wkbPolygon)); }
Geometry::wkb_multipolygon, Geometry::wkb_polygon)); }
| POINT_SYM '(' expr ',' expr ')'
{ $$= GEOM_NEW(Item_func_point($3,$5)); }
| POINTFROMTEXT '(' expr ')'
@ -2979,7 +2979,7 @@ geometry_function:
{ $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
| POLYGON '(' expr_list ')'
{ $$= GEOM_NEW(Item_func_spatial_collection(* $3,
Geometry::wkbPolygon, Geometry::wkbLineString)); }
Geometry::wkb_polygon, Geometry::wkb_linestring)); }
| GEOMCOLLFROMTEXT '(' expr ')'
{ $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
| GEOMCOLLFROMTEXT '(' expr ',' expr ')'