[Nasa-exp-checkins] SF.net SVN: nasa-exp: [3720] trunk/WorldWind/DstilePlugin

[<ti...@us...>]

Revision: 3720
          http://svn.sourceforge.net/nasa-exp/?rev=3720&view=rev
Author:   tish_mp
Date:     2007-03-23 05:04:36 -0700 (Fri, 23 Mar 2007)

Log Message:
-----------
ADD-79: Replace GDAL Info Exec with GDAL API calls.

Modified Paths:
--------------
    trunk/WorldWind/DstilePlugin/DstileFE.cs
    trunk/WorldWind/DstilePlugin/DstileGUI.csproj

Modified: trunk/WorldWind/DstilePlugin/DstileFE.cs
===================================================================
--- trunk/WorldWind/DstilePlugin/DstileFE.cs	2007-03-23 00:15:46 UTC (rev 3719)
+++ trunk/WorldWind/DstilePlugin/DstileFE.cs	2007-03-23 12:04:36 UTC (rev 3720)
@@ -26,6 +26,7 @@
 
 //Import GDAL Utilities
 using GDAL;
+using OSR;
 
 namespace DstileGUI
 {
@@ -496,9 +497,10 @@
             inputFileTextBox.Text = fileName;
             if (File.Exists(fileName))
                 currentStatusLabel.Text = "Data located";
+            string strfileName = Path.GetFullPath(fileName);
             fileName = "\"" + fileName + "\"";
             Console.WriteLine("** File input: " + fileName);
-            
+            /*
             // only while testing - need to know/read in relative location
             Process process = new Process();
             ProcessStartInfo psi = new ProcessStartInfo(Path.Combine(fwlocText.Text,"bin//gdalinfo.exe"));
@@ -552,24 +554,52 @@
             process.WaitForExit();
             process.Close();
             process.Dispose();
+            */
             
-            /*
             gdal.AllRegister();
-            GDAL.Dataset dataset = gdal.Open(fileName, 0);
-            string proj = dataset.GetGCPProjection();
-            */
+            Console.WriteLine("GDAL Drivers:"+gdal.GetDriverCount());
+            GDAL.Dataset dataset = gdal.Open(strfileName, 0);
+            string proj = dataset.GetProjection();
+            if (proj != null)
+            {
+                SpatialReference srs = new SpatialReference(proj);
+                string proj4def;
+                srs.ExportToProj4(out proj4def);
+                srcProjTextBox.Text = proj4def;
+                SpatialReference llsrs = srs.CloneGeogCS();
+                CoordinateTransformation coordtrans = new CoordinateTransformation(srs, llsrs);
+                double[] transform = new double[6];
+                dataset.GetGeoTransform(transform);
+                int xsize = dataset.RasterXSize;
+                int ysize = dataset.RasterYSize;
+                double topleftx = transform[0];
+                double toplefty = transform[3];
+                double bottomrightx = transform[0] + xsize * transform[1];
+                double bottomrighty = transform[3] + ysize * transform[5];
 
-            if (srcProjNeeded)
+                double[] topleft = { topleftx, toplefty };
+                double[] bottomright = { bottomrightx, bottomrighty };
+
+                coordtrans.TransformPoint(topleft);
+                coordtrans.TransformPoint(bottomright);
+
+                northlab.Text = Convert.ToString(Math.Round(topleft[1], 2));
+                westlab.Text = Convert.ToString(Math.Round(topleft[0], 2));
+                southlab.Text = Convert.ToString(Math.Round(bottomright[1], 2));
+                eastlab.Text = Convert.ToString(Math.Round(bottomright[0], 2));
+            }
+            else
             {
                 srcProjTextBox.ReadOnly = false;
                 srcProjTextBox.Text = "";
             }
-
+            /*
             //TODO: Use proj.4 to reproject non-lat-lon coordinates to epsg:4326
             if (srcProjTextBox.Text.ToLower() != "epsg:4326")
             {
                 MessageBox.Show("Reprojection of the extents is needed");
             }
+            */
         }
 
         /// <summary>

Modified: trunk/WorldWind/DstilePlugin/DstileGUI.csproj
===================================================================
--- trunk/WorldWind/DstilePlugin/DstileGUI.csproj	2007-03-23 00:15:46 UTC (rev 3719)
+++ trunk/WorldWind/DstilePlugin/DstileGUI.csproj	2007-03-23 12:04:36 UTC (rev 3720)
@@ -82,6 +82,10 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\bin\Debug\gdal_csharp.dll</HintPath>
     </Reference>
+    <Reference Include="osr_csharp, Version=0.0.0.0, Culture=neutral">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\bin\Debug\osr_csharp.dll</HintPath>
+    </Reference>
     <Reference Include="System">
       <Name>System</Name>
     </Reference>


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