Merge pull request #60 from VIDA-NYU/merge

black/zoom.png should be black/tilesize.png

src/tile2net/raster/raster.py

@@ -41,6 +41,7 @@
 from tile2net.raster.input_dir import InputDir
 from tile2net.raster.validate import validate
 from tile2net.logger import logger
+import shutil
 
 PathLike = Union[str, _PathLike]
 
@@ -61,7 +62,11 @@ def __set_name__(self, owner, name):
 
     @cached_property
     def path(self):
-        result: Path = self.owner.project.resources.path / 'black' / f'{self.owner.zoom}.png'
+        result: Path = (
+                self.owner.project.resources.path /
+                'black' /
+                f"{self.owner.base_tilesize}.png"
+        )
         result.parent.mkdir(parents=True, exist_ok=True)
         if not result.exists():
             imageio.v3.imwrite(result, self.array)
@@ -72,7 +77,7 @@ def __fspath__(self):
 
     @cached_property
     def array(self):
-        return np.zeros((self.owner.base_tilesize, self.owner.base_tilesize, 3), dtype=np.uint8)
+        return np.zeros(( self.owner.base_tilesize, self.owner.base_tilesize, 3 ), dtype=np.uint8)
 
 
 class Raster(Grid):
@@ -641,8 +646,13 @@ def head(url: str) -> int:
                 logger.info(f'{loc.sum():,} tiles returned 404 from the server.')
             if loc.any():
                 src = self.black.__fspath__()
-                for path in paths[loc]:
-                    os.symlink(src, path)
+                assert os.path.exists(src)
+                try:
+                    for path in paths[loc]:
+                        os.symlink(src, path)
+                except PermissionError:
+                    for path in paths[loc]:
+                        shutil.copyfile(src, path)
                 logger.debug(
                     f'{loc.sum():,} tiles were not found and returned 404 from the server '
                     f'so they were set as symlinks to {src}.'