No, it's still around.
On Wed, May 19, 2010 at 8:25 AM, strk <[email protected]> wrote: > On Wed, May 19, 2010 at 07:43:03AM -0700, Paul Ramsey wrote: >> If you have an older version of PostGIS, the zmflag() function also >> returns the information you need. > > Which was even more useful as you could get the whole information > with a single function rather than two, and hitting less keystrokes too! :) > > Was that function deprecated ? > > --strk; > >> 2010/5/19 Paul Ramsey <[email protected]>: >> > ST_NDims() returns the number of dimensions, but that doesn't >> > distinguish between XYM and XYZ. >> > The ESRI compatibility functions SE_IsMeasured() and SE_Is3D() (hey, >> > they are useful after all!) return the information you are looking >> > for. >> > >> > P >> > >> > On Wed, May 19, 2010 at 7:23 AM, Ëïçù <[email protected]> wrote: >> >> Can anyone throw some lights on the question? >> >> >> >> Thanks, >> >> Cheney >> >> >> >> On Wed, May 19, 2010 at 6:27 PM, Ëïçù <[email protected]> wrote: >> >>> >> >>> Hi experts, >> >>> >> >>> Do we have a way to resolve the third dimensionality of GEOMETRY data? As >> >>> known, those single types(POINT, LINESTRING, POLYGON....) all have the >> >>> corresponding XYM versions with suffix M. Thus, if we have >> >>> three-dimensionality feature, we can discriminate its third >> >>> dimensionality >> >>> as Z or M by the returned geometry type. However, if the mixed-typed >> >>> (GEOMETRY) is used, it seems that it's hard to resolve the 3rd >> >>> dimensionality. By the Postgis 1.5.1 manual, no GEOMETRYM type is >> >>> provided >> >>> to fix the issue. So can someone tell me if there is another way to do >> >>> the >> >>> work? >> >>> >> >>> Thanks, >> >>> Cheney >> >> >> >> >> >> _______________________________________________ >> >> postgis-users mailing list >> >> [email protected] >> >> http://postgis.refractions.net/mailman/listinfo/postgis-users >> >> >> >> >> > >> _______________________________________________ >> postgis-users mailing list >> [email protected] >> http://postgis.refractions.net/mailman/listinfo/postgis-users > > -- > > () Free GIS & Flash consultant/developer > /\ http://strk.keybit.net/services.html > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users > _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
