Corrected color in normal map to standard color but zero alpha, file access call in POSIX systems revised to clear _cache folder. Changes in defines.py to reflect my project folder on Linux

defines.py

@@ -13,7 +13,10 @@
 # Your data folder - meaning where the cache is stored, and where the finished
 # tiles will go. This is also the folder where the image generation sources are
 # stored.
-mstr_datafolder = "M:/Developer/Projects/orthographic/"
+#mstr_datafolder = "M:/Developer/Projects/orthographic/"
+mstr_datafolder = "/home/marcus/Data/Developer/Projects/orthographic/"
+# Switched to Linux, so path is amended
+
 
 # API endpoint to acquire OSM data (bonus: I have my own)
 mstr_osm_endpoint = "https://marstr.online/osm/v1/"

orthographic.py

@@ -53,19 +53,10 @@ class mstr_orthographic:
     
     # Need a same call for POSIX
     def _isFileAccessiblePosix(self, src):
-        wildcard = "/proc/*/fd/*"
-        lfds = glob.glob(wildcard)
-        for fds in lfds:
-            try:
-                file = os.readlink(fds)
-                if file == src:
-                    return True            
-            except OSError as err:
-                if err.errno == 2:     
-                    file = None
-                else:
-                    raise(err)
-        return False
+        a = True
+        if os.access(src, os.W_OK) == False:
+            a = False
+        return a
 
 
     # This will determine the vertical stepping in degrees in order to generate
@@ -171,7 +162,7 @@ class mstr_orthographic:
                 mstr_msg("orthographic", "Adjusted bounding box for XML object")
 
                 # Determine what to do... maybe work was interrupted
-                if os.path.isfile(mstr_datafolder + "Tiles/" + self._latlngfld + "/orthos/" + str(cur_tile_y) + "_" + str(cur_tile_x) + ".dds") == False:
+                if os.path.isfile(mstr_datafolder + "Tiles/z_orthographic_" + self._latlngfld + "/orthos/" + str(cur_tile_y) + "_" + str(cur_tile_x) + ".dds") == False:
 
                     # Let the user know
                     mstr_msg("orthographic", "Generating missing orthophoto " + str(cur_tile_y) + "-" + str(cur_tile_x))

xp_normalmap.py

@@ -84,8 +84,8 @@ class mstr_xp_normalmap:
     # The Big Mac. Generate the normal map
     def generate_normal_map_for_layer(self, image):
         mstr_msg("xp_normalmap", "[X-Plane] Beginning normal map generation")
-        #nmp = Image.new("RGBA", (image.width, image.height), (128,128,255,255))
-        nmp = Image.new("RGBA", (image.width, image.height), (0,0,0,0))
+        nmp = Image.new("RGBA", (image.width, image.height), (128,128,255,0)) # no specularity, but default color
+        #nmp = Image.new("RGBA", (image.width, image.height), (0,0,0,0))
         org = image.load()
         nmp_pix = nmp.load()