query.py 文件源码

def TileId(self, y, x):
    if (y < self.bbox.miny or x < self.bbox.minx or
        y > self.bbox.maxy or x > self.bbox.maxx):
      return -1

    #Find the tileid by finding the latitude row and longitude column
    return (self.Row(y) * self.ncolumns) + self.Col(x)

  # Get the bounding box of the specified tile.