Converting x,y,zone coordinates to Latitude and Longitude

Question

I want to convert my x,y,zone coordinate to latitude-longitude in c#.how can i do that??? i find some function in net but they doesnt work properly.plz help me. if my country is important i live in Iran.

for example: i give this x,y,zone: 271740.00,3250740.00,40

it gives me this [this site]: long,lat:54.648498425894694,29.36515026502202,0

Just _doesnt work properly_ does **not** an enough information about a problem. Can you please be more specific about it? — Soner Gönül, Nov 06 '15 at 11:13
Did you try the library referred to in the accepted answer, rather than blindly copying unreadable, badly written code and then coming here to ask why it doesn't work? — David Arno, Nov 06 '15 at 11:40
I cant find refrence function about converting.can u help me??? — Vahid Akbari, Nov 06 '15 at 12:30
Do you know in what format are written your zone coordinate ? — ScaisEdge, Nov 06 '15 at 12:39
No.I dont have any geograpghic information but our area zone is 38-39-40 just this three number(iran) — Vahid Akbari, Nov 06 '15 at 12:45

Wernfried Domscheit · Accepted Answer · 2023-05-07T17:48:48.023

3

A very good coordinate converter is this one: Proj It is written in C, In order to use it in C#, you can use this wrapper: .NET wrapper for Proj4

Another very good library written in C# is DotSpatial

Other projects are Proj4Net and Proj.Net, however I don't know their quality, perhaps they are just copy/paste of other projects. For sure they are all inspired by the original Proj4 project.

edited May 07 '23 at 17:48

answered Nov 09 '15 at 10:00

Wernfried Domscheit

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score 1 · Answer 2 · answered Jul 08 '18 at 23:02

CoordinateSharp does conversions like this.

Example

 UniversalTransverseMercator utm = new UniversalTransverseMercator("T", 32, 233434, 234234);
 Coordinate c = UniversalTransverseMercator.ConvertUTMtoLatLong(utm);

Your lat/long values can be found in the Coordinate object

Converting x,y,zone coordinates to Latitude and Longitude

2 Answers2