Hi Brent,
I am aware of PostGIS and already use it. My question was regarding
the entry format of PostgreSQL polygon data. There is a void
in the PostgreSQL documentation regarding this.
Incidentally, PostGIS uses PostgreSQL polygon, point, and path
data types.
Using PostGIS for simple ,
On Mon, Mar 23, 2009 at 2:13 PM, Peter Willis pet...@borstad.com wrote:
For example:
I have a triangle with vertex corners A, B, C.
One entry per vertex format suggests
INSERT INTO my_table (my_polygon_column)
VALUES ( ((Ax,Ay),(Bx,By),(Cx,Cy)) );
One entry per edge format suggests
Mark Cave-Ayland wrote:
Peter Willis wrote:
Incidentally, PostGIS uses PostgreSQL polygon, point, and path
data types.
Errr... no it doesn't. PostGIS uses its own internal types to represent
all the different geometries, although it does provide a cast between
the existing PostgreSQL types
Hi Peter,
If you want to use Postgres to store/manage/query spatial data, I strongly
recommend you look at PostGIS, not the native Postgres geometry types.
Brent Wood
Brent Wood
DBA/GIS consultant
NIWA, Wellington
New Zealand
Peter Willis pet...@borstad.com 03/24/09 10:35 AM
Hello,
I
Hello,
I would like to use 'polygon' type data and am wondering about
the entry format of the vertex coordinates.
Are the coordinates of the polygon type to be entered one
entry per polygon vertex, or one entry per polygon edge segment?
For example:
I have a triangle with vertex corners A, B,
