private unsafe void FillBand()
{
float[][] bandValues = new float[1][];
bandValues[0] = new float[_width * _height];
IArrayRasterDataProvider dataProvider = new ArrayRasterDataProvider <float>(
_fileName, bandValues, _width, _height, _coordEnvelope, _spatialRef);
float val;
int row = _height - 1;
float res = _resolutionX;//or _resolutionY
float minX = (float)_coordEnvelope.MinX;
float maxY = (float)_coordEnvelope.MaxY;
_fs = new FileStream(_fileName, FileMode.Open, FileAccess.Read);
_stReader = new StreamReader(_fs, Encoding.Default);
fixed(float *ptr0 = bandValues[0])
{
float *ptr = ptr0;
while (!_stReader.EndOfStream)
{
string sLine = _stReader.ReadLine();
string[] parts = sLine.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < parts.Length; i++)
{
float.TryParse(parts[i], out val);
ptr = ptr0 + row * _width + i;
*ptr = val;
}
row--;
}
}
_rasterBands.Add(dataProvider.GetRasterBand(1));
}
private unsafe void FillBand()
{
float[][] bandValues = new float[1][];
bandValues[0] = new float[_width * _height];
IArrayRasterDataProvider dataProvider = new ArrayRasterDataProvider <float>(
_fileName, bandValues, _width, _height, _coordEnvelope, _spatialRef);
float lon, lat, val;
int col = 0, row = 0;
float res = _resolutionX;//or _resolutionY
float minX = (float)_coordEnvelope.MinX;
float maxY = (float)_coordEnvelope.MaxY;
_fs = new FileStream(_fileName, FileMode.Open, FileAccess.Read);
_stReader = new StreamReader(_fs, Encoding.ASCII);
fixed(float *ptr0 = bandValues[0])
{
float *ptr = ptr0;
while (!_stReader.EndOfStream)
{
string sLine = _stReader.ReadLine();
string[] parts = sLine.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
float.TryParse(parts[0], out lon);
float.TryParse(parts[1], out lat);
float.TryParse(parts[2], out val);
lon -= 180;
col = (int)((lon - minX) / _resolutionX);
row = (int)((maxY - lat) / _resolutionY);
ptr = ptr0 + row * _width + col;
*ptr = val;
}
}
_rasterBands.Add(dataProvider.GetRasterBand(1));
}
