There is no single British Grid that covers all of India.
For Large-Scale mapping, there are seven (7) individual
Lambert Zones. (That is a necessity for geodetic surveying
applications.) You must be working with a small-scale
thematic base.
I do not work with that sort of thing; I'm afraid that
thematic mapping is not in my purview. The distortions
that would be introduced as a result of a wrong guess on
standard parallels would be insignificant for all practical
purposes. If you are looking at a single map of all of
India, I doubt that even the "proper" ellipsoid choice
would have any effect at all.
Sorry.
Clifford J. Mugnier ([EMAIL PROTECTED])
The Topographic Engineering Laboratory
Department of Civil and Environmental Engineering
UNIVERSITY OF NEW ORLEANS
New Orleans, Louisiana 70148
Voice and Facsimilie: (504) 280-7095
On Thursday, 24 February, 2000 10:32 PM, Dr Rajeev saraf
wrote:
> Thanks for the reply. the limits are:
> lat 72 to 96 degrees and
> long: 8 to 36 degrees
>
> covers whole of india.
> thanks again.
>
> --
> rajeev saraf
> -----Original Message-----
> From: Clifford J. Mugnier <[EMAIL PROTECTED]>
> To: 'Dr Rajeev saraf' <[EMAIL PROTECTED]>; mapinfo-
> [EMAIL PROTECTED]
> <[EMAIL PROTECTED]>
> Date: Thursday, February 24, 2000 7:14 PM
> Subject: RE: MI lambert conical orthomorphic
>
>
> >Lambert Conical Orthomorphic is the British term for
> >Lambert Conformal Conic. The Brits introduced it in the
> >Survey of India in the early 1900's. Captain Martin
> >Hotine
> >was the Geodesist that did it - he was one of the
> >"Giants
> >of Geodesy." There are numberous secant zones (2
> >standard
> >parallels). India is a BIG place. Exactly what are the
> >limits of Latitude and Longitude of the map you have in
> >hand?
> >
> >Clifford J. Mugnier ([EMAIL PROTECTED])
> >The Topographic Engineering Laboratory
> >Department of Civil and Environmental Engineering
> >UNIVERSITY OF NEW ORLEANS
> >New Orleans, Louisiana 70148
> >
> >Voice and Facsimilie: (504) 280-7095
> >
> >On Thursday, 24 February, 2000 12:33 AM, Dr Rajeev saraf
> >[SMTP:[EMAIL PROTECTED]] wrote:
> >> HellO evrybodY:
> >> i have a map of india which says that the projection
> >> is
> >> "lambert conical orthomorphic". can somebody suggest
> >> the
> >> projection in MI list that matches with this
> >> projection
> >> or the parameters required to create new projection
> >> --
> >> thanks
> >>
> >> Rajeev saraf
> >> lepton software
> >> [EMAIL PROTECTED]
> >> << File: ATT00013.htm >>
> >
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