private void TestLabelSerialize()
{
// As mentioned here https://github.com/MapWindow/MapWinGIS/issues/1
var sf = new ShapefileClass();
if (!sf.Open(@"D:\dev\GIS-Data\Issues\0001\LOT_N.shp"))
{
Debug.WriteLine(DateTime.Now + " Could not open shapefile. Reason " + sf.ErrorMsg[sf.LastErrorCode]);
return;
}
if (sf.Labels.Count == 0)
{
Debug.WriteLine("Create labels");
sf.GenerateLabels(0, tkLabelPositioning.lpCenter, true);
}
Debug.WriteLine(sf.Labels.Serialize());
// Add shapefile to map:
var hndl = axMap1.AddLayer(sf, true);
var sf2 = axMap1.get_Shapefile(hndl);
txtResults.Text = sf2.Labels.Serialize();
}
private void button4_Click(object sender, EventArgs e)
{
_settings.OgrStringEncoding = tkOgrEncoding.oseUtf8;
var sf = new ShapefileClass();
if (!sf.Open(@"D:\dev\GIS-Data\Issues\Persian\roads.shp"))
{
Debug.WriteLine(DateTime.Now + " Could not open shapefile. Reason " + sf.ErrorMsg[sf.LastErrorCode]);
return;
}
if (sf.Labels.Count == 0)
{
Debug.WriteLine("Create labels");
sf.GenerateLabels(1, tkLabelPositioning.lpLongestSegement, true);
}
// Add shapefile to map:
var hndl = axMap1.AddLayer(sf, true);
txtResults.Text += @"Added layer with handle " + hndl;
}
private static void GridStatistics()
{
const string workingFolder = @"D:\dev\GIS-Data\Siebe\NetCDF\";
var currentProcess = Process.GetCurrentProcess();
using (var writer = new StreamWriter(Path.Combine(workingFolder, "GridStatisticsForPolygon.log"), false))
{
currentProcess.Refresh();
writer.WriteLine(DateTime.Now + " Starting. Total memory: " + FormatBytes(currentProcess.WorkingSet64));
// Load shapefile with polygons:
var sf = new ShapefileClass();
if (!sf.Open(Path.Combine(workingFolder, "ARK.shp")))
{
writer.WriteLine(
DateTime.Now + " Could not open shapefile. Reason " + sf.ErrorMsg[sf.LastErrorCode]);
return;
}
var numShapes = sf.NumShapes;
var netCdfFiles = Directory.GetFiles(workingFolder, "*.nc");
var utils = new UtilsClass();
_settings.ResetGdalError();
var amersfoort = new GeoProjectionClass();
amersfoort.ImportFromEPSG(28992);
// Check projection:
if (!sf.GeoProjection.IsSame[amersfoort])
{
sf.GeoProjection = amersfoort.Clone();
}
// Loop through all netCDF files in folder:
foreach (var netCdfFile in netCdfFiles)
{
var grd = new GridClass();
if (!grd.Open(netCdfFile))
{
writer.WriteLine(DateTime.Now + " Could not open {0}. Reason: {1}, GDAL Error: {2}", netCdfFile,
grd.ErrorMsg[grd.LastErrorCode], _settings.GdalLastErrorMsg);
continue;
}
currentProcess.Refresh();
writer.WriteLine(DateTime.Now + "Loaded grid " + netCdfFile + " Current memory " +
FormatBytes(currentProcess.WorkingSet64));
var header = grd.Header;
var noDataValue = (double)grd.Header.NodataValue;
var extents = grd.Extents;
// Set projection:
header.GeoProjection = amersfoort.Clone();
// Get each band:
var numBands = grd.NumBands;
for (var i = 0; i < numBands; i++)
{
if (!grd.OpenBand(i))
{
writer.WriteLine(DateTime.Now + " Could not open band {0}. Reason: {1}, GDAL Error: {2}", i,
grd.ErrorMsg[grd.LastErrorCode], _settings.GdalLastErrorMsg);
continue;
}
currentProcess.Refresh();
writer.WriteLine(DateTime.Now + " Working with band {0} Current memory: {1} ", i,
FormatBytes(currentProcess.WorkingSet64));
var mean = 0d;
var min = 0d;
var max = 0d;
for (var j = 0; j < numShapes; j++)
{
var shp = sf.Shape[j];
if (
!utils.GridStatisticsForPolygon(grd, header, extents, shp, noDataValue, ref mean,
ref min,
ref max))
{
writer.WriteLine(DateTime.Now + " Error getting statistics: " +
utils.ErrorMsg[utils.LastErrorCode]);
}
currentProcess.Refresh();
writer.WriteLine(DateTime.Now + " Mean: {0}, Min: {1}, Max: {2}, Current memory: {3}", mean,
min, max, FormatBytes(currentProcess.WorkingSet64));
}
}
// Close grid:
grd.Close();
currentProcess.Refresh();
writer.WriteLine(DateTime.Now + " Closed grid Current memory: " +
FormatBytes(currentProcess.WorkingSet64));
}
currentProcess.Refresh();
writer.WriteLine(DateTime.Now + " Done. Current memory: " + FormatBytes(currentProcess.WorkingSet64));
}
Debug.WriteLine("Ready");
}