Пример #1
0
def gdal_to_dat(dest, bandid='Data'):
    """
    GDAL to Data format

    Parameters
    ----------
    dest - GDAL format
        GDAL format
    bandid - str
        band identity
    """
    dat = Data()
    gtr = dest.GetGeoTransform()

    rtmp = dest.GetRasterBand(1)
    dat.data = rtmp.ReadAsArray()
    nval = rtmp.GetNoDataValue()

    dat.data = np.ma.masked_equal(dat.data, nval)
    dat.data.set_fill_value(nval)
    dat.data = np.ma.fix_invalid(dat.data)

    dat.nrofbands = dest.RasterCount
    dat.tlx = gtr[0]
    dat.tly = gtr[3]
    dat.dataid = bandid
    dat.nullvalue = nval
    dat.rows = dest.RasterYSize
    dat.cols = dest.RasterXSize
    dat.xdim = abs(gtr[1])
    dat.ydim = abs(gtr[5])
    dat.wkt = dest.GetProjection()
    dat.gtr = gtr

    return dat
Пример #2
0
def gdal_to_dat(dest, bandid='Data'):
    """
    GDAL to Data format

    Parameters
    ----------
    dest - GDAL format
        GDAL format
    bandid - str
        band identity
    """
    dat = Data()
    gtr = dest.GetGeoTransform()

    rtmp = dest.GetRasterBand(1)
    dat.data = rtmp.ReadAsArray()
    nval = rtmp.GetNoDataValue()

    dat.data = np.ma.masked_equal(dat.data, nval)
    dat.data.set_fill_value(nval)
    dat.data = np.ma.fix_invalid(dat.data)

    dat.nrofbands = dest.RasterCount
    dat.tlx = gtr[0]
    dat.tly = gtr[3]
    dat.dataid = bandid
    dat.nullvalue = nval
    dat.rows = dest.RasterYSize
    dat.cols = dest.RasterXSize
    dat.xdim = abs(gtr[1])
    dat.ydim = abs(gtr[5])
    dat.wkt = dest.GetProjection()
    dat.gtr = gtr

    return dat
Пример #3
0
    def init_grid(self, data):
        """ Initializes raster variables in the Data class

        Args:
            data (numpy masked array): masked array containing raster data."""

        grid = Data()
        grid.data = data
        grid.cols = self.numx
        grid.rows = self.numy
        grid.xdim = self.dxy
        grid.ydim = self.dxy
        grid.tlx = self.xrange[0]
        grid.tly = self.yrange[1]
        return grid
Пример #4
0
    def init_grid(self, data):
        """ Initializes raster variables in the Data class

        Args:
            data (numpy masked array): masked array containing raster data."""

        grid = Data()
        grid.data = data
        grid.cols = self.numx
        grid.rows = self.numy
        grid.xdim = self.dxy
        grid.ydim = self.dxy
        grid.tlx = self.xrange[0]
        grid.tly = self.yrange[1]
        return grid