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List:       postgis-users
Subject:    Re: [postgis] "length2d" function was replaced by "length" function in
From:       Dave Blasby <dblasby () refractions ! net>
Date:       2001-09-27 17:59:17
Message-ID: 3BB368F5.A1D43AA7 () refractions ! net
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> Hisaji ONO wrote:
> In the Online Manual of PostGIS 0.6, length2d function still exists
> in
> "Other Functions" section, no description about length function in
> "Chapter 5." But postgis.sql of PostGIS 0.6 doesn't define
> length2d(returned value type Float4), length is defined(returned value
> type Float8).
> 
> Which function does PostGIS really support? And length function is
> similar to length funcion in OpenGIS Simple Features Specification For
> SQL. This function's description should be in Chapter 5's "OpenGIS
> Functions" section?

length() gives a 2d length - just like the OGC spec.
length3d() gives a 3d length 

There is no longer a function called length2d() - if you call it, you'll
get an error.

Its a documentation error - I thought we fixed that when 0.5 was
released.

dave

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