[Proj] Some need for updated proj-4 manuals
Glynn Clements
glynn at gclements.plus.com
Mon Sep 15 02:37:06 EDT 2008
Hamish wrote:
> > and an accurate description of all parameters
>
> I wouldn't guarantee that it's a full set, but these are the ones used
> in the EPSG file.
[snip]
> > and how they affect the result.
>
> A short sentence/paragraph on each of the above would be nice.
> As Markus suggested, the (FW/OSGeo) proj4 wiki is a nice place to work
> on collaborative documents.
> http://trac.osgeo.org/proj/wiki/GenParms/
>
> I made a start at naming the above, if others could please complete...
The following are taken from the table used by GRASS' g.setproj
module:
alpha Azimuth angle at Cartesian Origin
azim Azimuth Angle of Tilt in Decimal degrees
guam
heigh Height of Viewing Point in Meters
kfact Scale Factor at the Central Meridian
lat0 Central Parallel
lat1 First Standard Parallel
lat2 Second Standard Parallel
lat3 Third Standard Parallel
latb Angular Distance from Tangency Point
latts Latitude of True Scale
lon0 Central Meridian
lon1 First Standard Meridian
lon2 Second Standard Meridian
lon3 Third Standard Meridian
lonc Longitude of Cartesian Origin
lotsa LOTSA
mfact m factor
msfact M factor
nfact n factor
nocut Both Hemispheres
norot Suppress Rotation
noskew Suppress Skew
nouoff Suppress Offset from Pre-Rotated Axis
oalpha
olat1
olat2
olatp Latitude of New Pole
olon1
olon2
olonc
olonp Longitude of New Pole
qfact q factor
rotconv Origin Convergence Angle
snum Satellite Number
south South Hemisphere
spath Satellite Path Number
theta Theta Angle
tilt Tilt Angle in Decimal Degrees
wfact W factor
x0 False Easting
y0 False Northing
zone Projection Zone
--
Glynn Clements <glynn at gclements.plus.com>
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