Fabien,
The C# routine that I previously attached has Subs to do conversions
between any of OSGBGridmapReference, OSGBEastingNorthing, OSGB36 &
WGS84. An example point is:
OSGBGridmapReference: Map=SO, Across=91370, Up=95550
OSGBEastingNorthing: Easting=391370, Northing=295550
OSGB36: Latitude=52.557346, Longitude=-2.127308
WGS84: Latitude=52.557704, Longitude=-2.128725
Would the software you suggest be capable of all these calculations?
Re your suggestions:
1. Do you mean the Ubuntu proj package?
2. Where do I obtain these classes?
proj, MapPointClass, MapBound (what is gb.map?)
3. What are epsg numbers in code below?
Dim WGS As Proj = Proj("epsg:4326")
Dim OBSG36 As Proj = Proj("epsg:27700")
Dim hLatLon As MapPoint
hLatLon = WGS.TransformMPoint(OBSG36, MapPoint(Val(TextBox1.Text),
Val(TextBox2.Text)))
Message(hLatLon.Lat & " / " & hLatLon.Lon)
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