C# GDAL/OGR API Documentation – Comprehensive Guide

ccoordinate systemgdalogrshapefile

I want to assign projection to shapefile in my web C# application, for this i am using Gdal/OGR/OSR C# bindings and add osr_csharp.dll and ogr_csharp.dll references. But i am facing some difficulty while writing the code for assigning projection to shapefile. I want to know is there any API documentation for this which can help me to understand the classes/methods of these libraries.
OR if anybody have some piece of code for assigning projection to shapefile , then it will be great help for me.

Best Answer

This directory in the GDAL project tree has some C# examples, specifically this one that might suit your needs.

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[GIS] Installing GDAL and OGR for Python

Only adding this because I tried using the kyng chaos tools, but on my Mac OS X machine I was able to very, very easily install this with Anaconda

conda install gdal

Posting in case anyone finds this again - I realize the original post is 3 years old.

Spatial Data – How to Reproject Using Free Libraries

You can try the DotSpatial.Projections library.

The website lists an example "Converting from a Geographic Coordinate System to a Projected Coordinate System":

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DotSpatial.Projections;

namespace WindowsFormsApplication1
{
  public partial class Form1 : Form
  {
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        //Sets up a array to contain the x and y coordinates
        double[] xy = new double[2];
        xy[0] = 0;
        xy[1] = 0;
        //An array for the z coordinate
        double[] z = new double[1];
        z[0] = 1;
        //Defines the starting coordiante system
        ProjectionInfo pStart = KnownCoordinateSystems.Geographic.World.WGS1984;
        //Defines the ending coordiante system
        ProjectionInfo pEnd = KnownCoordinateSystems.Projected.NorthAmerica.USAContiguousLambertConformalConic;
        //Calls the reproject function that will transform the input location to the output locaiton
        Reproject.ReprojectPoints(xy, z, pStart, pEnd, 0, 1);
        Interaction.MsgBox("The points have been reporjected.");
    }
  }
}

Best Answer

Related Solutions

[GIS] Installing GDAL and OGR for Python

Spatial Data – How to Reproject Using Free Libraries

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