[processing] remove unused code

python/plugins/processing/tools/raster.py

@@ -38,39 +38,6 @@ from osgeo import gdal
 from qgis.core import QgsProcessingException
 
 
-RASTER_EXTENSION_MAP = None
-
-
-def initGdalData():
-    global RASTER_EXTENSION_MAP
-
-    if RASTER_EXTENSION_MAP is not None:
-        return
-
-    if gdal.GetDriverCount() == 0:
-        gdal.AllRegister()
-
-    RASTER_EXTENSION_MAP = dict()
-    for i in range(gdal.GetDriverCount()):
-        driver = gdal.GetDriver(i)
-        if driver is None:
-            continue
-        md = driver.GetMetadata()
-        if gdal.DCAP_CREATE in md and md[gdal.DCAP_CREATE].lower() == 'yes':
-            ext = md[gdal.DMD_EXTENSION] if gdal.DMD_EXTENSION in md else None
-            if ext is not None and ext != '':
-                RASTER_EXTENSION_MAP[driver.ShortName] = ext
-
-
-def formatShortNameFromFileName(fileName):
-    initGdalData()
-    ext = os.path.splitext(fileName)[1][1:]
-    for k, v in RASTER_EXTENSION_MAP.items():
-        if ext == v:
-            return k
-    return 'GTiff'
-
-
 def scanraster(layer, feedback):
     filename = str(layer.source())
     dataset = gdal.Open(filename, gdal.GA_ReadOnly)
@@ -111,48 +78,3 @@ def mapToPixel(mX, mY, geoTransform):
 
 def pixelToMap(pX, pY, geoTransform):
     return gdal.ApplyGeoTransform(geoTransform, pX + 0.5, pY + 0.5)
-
-
-class RasterWriter(object):
-
-    NODATA = -99999.0
-
-    def __init__(self, fileName, minx, miny, maxx, maxy, cellsize,
-                 nbands, crs, geotransform=None):
-        self.fileName = fileName
-        self.nx = int((maxx - minx) / float(cellsize))
-        self.ny = int((maxy - miny) / float(cellsize))
-        self.nbands = nbands
-        self.matrix = numpy.empty(shape=(self.ny, self.nx), dtype=numpy.float32)
-        self.matrix.fill(self.NODATA)
-        self.cellsize = cellsize
-        self.crs = crs
-        self.minx = minx
-        self.maxy = maxy
-        self.geotransform = geotransform
-
-    def setValue(self, value, x, y, band=0):
-        try:
-            self.matrix[y, x] = value
-        except IndexError:
-            pass
-
-    def getValue(self, x, y, band=0):
-        try:
-            return self.matrix[y, x]
-        except IndexError:
-            return self.NODATA
-
-    def close(self):
-        fmt = 'GTiff'
-        driver = gdal.GetDriverByName(fmt)
-        dst_ds = driver.Create(self.fileName, self.nx, self.ny, 1,
-                               gdal.GDT_Float32)
-        dst_ds.SetProjection(str(self.crs.toWkt()))
-        if self.geotransform is None:
-            dst_ds.SetGeoTransform([self.minx, self.cellsize, 0,
-                                    self.maxy, self.cellsize, 0])
-        else:
-            dst_ds.SetGeoTransform(self.geotransform)
-        dst_ds.GetRasterBand(1).WriteArray(self.matrix)
-        dst_ds = None