public void SaveMapAsJPEG(string filename)
{
var gdalUtils = new GdalUtils();
PrintCallback callback = new PrintCallback(MapControlTools);
gdalUtils.GlobalCallback = callback;
var image = AxMap.SnapShot(AxMap.Extents);
image.Save(filename, true, ImageType.JPEG_FILE);
}
public void CaptureSnapshot()
{
// clear map
_axMap1.ClearDrawings();
_axMap1.RemoveAllLayers();
// create layer
CreateLayer();
//
var bpp = Screen.PrimaryScreen.BitsPerPixel;
DebugMsg($"Current color depth is {bpp} bits per pixel");
// test is only valid when not in 32 bit color depth
if (bpp == 32)
{
DebugMsg(" Test is only valid for color depth less than 32 bpp");
}
try
{
DebugMsg("Calling AxMap.Snapshot() method. Watch for Access Violation Exception if color depth is less than 32 bpp.");
var img = _axMap1.SnapShot(_axMap1.Extents);
Assert.IsNotNull(img, "axMap1.SnapShot returned null");
DebugMsg($"Successfully called Snapshot() with color depth = {bpp}.");
if (bpp != 32)
{
DebugMsg(" Test verified.");
}
}
catch (AccessViolationException avex)
{
Assert.Fail(avex.ToString());
}
catch (Exception ex)
{
Assert.Fail(ex.ToString());
}
}
public static string SaveSnapshot(AxMap axMap1, string baseName, IExtents boundBox, double extentEnlarger = 1d)
{
Application.DoEvents();
var filename = Path.Combine(Path.GetTempPath(), baseName);
DeleteFile(filename);
if ((boundBox.Width * boundBox.Height).Equals(0))
{
double xmin, ymin, xmax, ymax, zmin, zmax;
boundBox.GetBounds(out xmin, out ymin, out zmin, out xmax, out ymax, out zmax);
boundBox.SetBounds(xmin - extentEnlarger, ymin - extentEnlarger, zmin, xmax + extentEnlarger, ymax + extentEnlarger, zmax);
}
var img = axMap1.SnapShot(boundBox);
if (img == null)
{
throw new NullReferenceException("Snapshot is null: " + axMap1.get_ErrorMsg(axMap1.LastErrorCode));
}
var retVal = img.Save(filename);
img.Close();
img = null;
if (!retVal)
{
throw new Exception("Snapshot could not be saved: " + img.ErrorMsg[img.LastErrorCode]);
}
if (!File.Exists(filename))
{
throw new FileNotFoundException("The file doesn't exists.", filename);
}
DebugMsg(filename);
return(filename);
}