PostGIS
3.4.0dev-r@@SVN_REVISION@@
Main Page
Related Pages
Namespaces
Namespace List
Namespace Members
All
a
b
c
d
f
g
h
i
l
m
n
o
p
q
r
s
t
u
v
w
x
y
Functions
c
d
f
g
i
l
m
p
q
w
Variables
a
b
c
d
f
g
h
i
l
n
o
p
r
s
t
u
v
x
y
Data Structures
Data Structures
Data Structure Index
Class Hierarchy
Data Fields
All
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Functions
Variables
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Enumerator
Properties
Files
File List
Globals
All
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Functions
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Variables
_
a
b
c
d
e
g
h
i
l
m
n
o
p
r
s
t
v
w
y
Typedefs
_
b
c
d
e
f
g
h
i
l
m
n
p
r
s
t
u
y
Enumerations
Enumerator
a
c
d
e
f
g
i
j
l
m
p
r
s
t
u
Macros
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
r
s
t
u
v
w
x
y
Examples
•
All
Data Structures
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Properties
Macros
Pages
◆
PG_FUNCTION_INFO_V1()
[18/23]
PG_FUNCTION_INFO_V1
(
LWGEOM_pointn_linestring
)
PointN(GEOMETRY,INTEGER) – find the first linestring in GEOMETRY,.
Returns
the point at index INTEGER (1 is 1st point). Return NULL if there is no LINESTRING(..) in GEOMETRY or INTEGER is out of bounds.
postgis
lwgeom_ogc.c
Generated by
1.9.1
1.9.1 
