[fdo-users] view scale

Maksim Sestic max at geoinova.com
Fri Feb 15 05:23:43 EST 2008

OSgeo::FDO::Geometry::DirectPositionImpl has M() property - it represents a
Measure related to given coordinate. It's on you to implement parsing of the
measure information and extracting something meaningful out of it. Geometry,
as it is, doesn't posses a scale - it's unitless by default.

On the other hand, FeatureStore may have CRS (Coordinate Reference System)
set. CRS establishes soft spatial relation between the "space" (container)
and geometric entities placed in it. It's definition does posses measure
info, just look under UNITS part of CRS WKT string.

Maksim Sestic

Artyom wrote:
> I'm developing an Fdo provider. And I need scale, no metter if it is
> MapGuide or AutoDesk Map 3D. Is it possible to get the scale by FDO? Or my
> problem has no solution?

View this message in context: http://www.nabble.com/view-scale-tp15432859s18162p15497822.html
Sent from the fdo-users mailing list archive at Nabble.com.

More information about the fdo-users mailing list