public static BinaryFileMapInfo Parse(string info)
{
string[] fields = info.Split(separator);
for (int i = 0; i < fields.GetLength(0); i++)
{
fields[i] = fields[i].Trim(charsToTrim);
}
BinaryFileMapInfo result = new BinaryFileMapInfo();
// Field indices from http://www.harrisgeospatial.com/docs/ENVIHeaderFiles.html
result.projection = fields[0];
result.refX = int.Parse(fields[1]);
result.refY = int.Parse(fields[2]);
result.refEasting = double.Parse(fields[3]);
result.refNorthing = double.Parse(fields[4]);
double pixelSizeX = double.Parse(fields[5]);
double pixelSizeY = double.Parse(fields[6]);
if (Mathf.Abs((float)(1 - pixelSizeX / pixelSizeY)) > pixelSizeTolerance)
{
throw new System.ArgumentException("Pixel sizes differ too much!");
}
result.pixelSize = (pixelSizeX + pixelSizeY) / 2;
return(result);
}
private void ProcessMapInfo()
{
BinaryFileMapInfo info = BinaryFileMapInfo.Parse(data[mapInfoKey]);
cellsize = (float)info.pixelSize;
CoordinateConverter conv = new CoordinateConverter(cellsize);
int deltaX = 1 - info.refX; // Lower left corner is map point (0, rows). The hdr top left coordinates are (1,1).
int deltaY = -(rows + 1) + info.refY; // The amount of y pixels to move to reach lower left corner from reference point.
lowerLeftCornerX = conv.TransformCoordinateByWebMercatorDistance(deltaX, info.refEasting);
lowerLeftCornerY = conv.TransformCoordinateByWebMercatorDistance(deltaY, info.refNorthing);
}
