[Optimization] optimize thumb generation algo

geonode/geoserver/helpers.py

@@ -1999,12 +1999,8 @@ def decimal_encode(bbox):
             bounds[3] = 85.0
         if bounds[1] < -85.051:
             bounds[1] = -85.0
-        if bounds[0] > 180.0:
-            bounds[0] = 179.0
-        if bounds[3] < -180.0:
-            bounds[3] = -179.0
         if 'zoom' in request_body:
-            zoom = request_body['zoom']
+            zoom = int(request_body['zoom'])
         else:
             zoom = bounds_to_zoom_level(bounds, width, height)
 
@@ -2041,7 +2037,6 @@ def decimal_encode(bbox):
             transform: translate3d(0px, 0px, 0px) scale3d(1, 1, 1);'> \
             \n".format(height=height, width=width, top=top, left=left)
 
-        numberOfRows = _n_step + 1 if numberOfRows > _n_step else numberOfRows
         for row in range(0, numberOfRows):
             for col in range(0, len(first_row)):
                 box = [col * 256, row * 256]