Fix Deepzoom

[vincentsarago]

👇 is not working Yet

titiler-image/titiler/image/factory.py

Lines 876 to 997 in 8ae9a69

	# TODO: it doesn't work yet
	@self.router.get("/{z}/{x}_{y}", **img_endpoint_params)
	@self.router.get("/{z}/{x}_{y}.{format}", **img_endpoint_params)
	def deepzoom_tile(
	level: int = Path(..., alias="z"),
	column: int = Path(..., alias="x"),
	row: int = Path(..., alias="y"),
	format: ImageType = Query(
	ImageType.png, description="Output image type. Defaults to PNG."
	),
	src_path: str = Query(description="Dataset URL", alias="url"),
	layer_params: BidxExprParams = Depends(),
	dataset_params: DatasetParams = Depends(),
	rescale: Optional[List[Tuple[float, ...]]] = Depends(RescalingParams),
	color_formula: Optional[str] = Query(
	None,
	title="Color Formula",
	description="rio-color formula (info: https://github.com/mapbox/rio-color)",
	),
	colormap: Optional[ColorMapType] = Depends(ColorMapParams),
	add_mask: Optional[bool] = Query(
	None, alias="return_mask", description="Add mask to the output data."
	),
	):
	"""DeepZoom tile."""
	tile_size = 254
	tile_overlap = 1
	with ImageReader(src_path) as dst:
	max_dimension = max(dst.dataset.width, dst.dataset.height)
	max_level = int(math.ceil(math.log(max_dimension, 2))) + 1
	assert 0 <= level and level < max_level, "Invalid pyramid level"
	print(max_dimension)
	print(max_level)
	# Overview Size
	# level_width = dst.dataset.width // 2 ** (max_level - level)
	# level_height = dst.dataset.height // 2 ** (max_level - level)
	scale = math.pow(0.5, max_level - 1 - level)
	level_width = int(math.ceil(dst.dataset.width * scale))
	level_height = int(math.ceil(dst.dataset.height * scale))
	print(level_height, level_width)
	# Nb tiles for Ovr
	level_x_tile = int(math.ceil(level_width / tile_size))
	level_y_tile = int(math.ceil(level_height / tile_size))
	print(level_x_tile, level_y_tile)
	offset_x = 0 if column == 0 else tile_overlap
	offset_y = 0 if row == 0 else tile_overlap
	x = (column * tile_size) - offset_x
	y = (row * tile_size) - offset_y
	w = tile_size + (1 if column == 0 else 2) * tile_overlap
	h = tile_size + (1 if row == 0 else 2) * tile_overlap
	w = min(w, level_width - x)
	h = min(h, level_height - y)
	print((x, y, x + w, y + h))
	# Output Size
	width = (
	min(tile_size, level_width - (tile_size * (level_x_tile - 1)))
	if column == level_x_tile - 1
	else tile_size
	)
	height = (
	min(tile_size, level_height - (tile_size * (level_y_tile - 1)))
	if row == level_y_tile - 1
	else tile_size
	)
	print(width, height)
	# BBox
	x_origin = (dst.dataset.width / level_width) * tile_size * column
	y_origin = (dst.dataset.height / level_height) * tile_size * row
	x_max = min(
	dst.dataset.width,
	x_origin + dst.dataset.width / level_width * width,
	)
	y_max = min(
	dst.dataset.height,
	y_origin + dst.dataset.height / level_height * height,
	)
	print(x_origin, y_origin, x_max, y_max)
	w = windows.from_bounds(
	x_origin,
	y_max,
	x_max,
	y_origin,
	transform=dst.transform,
	)
	image = dst.read(
	window=w,
	width=width,
	height=height,
	**layer_params,
	**dataset_params,
	)
	dst_colormap = getattr(dst, "colormap", None)
	if rescale:
	image.rescale(rescale)
	if color_formula:
	image.apply_color_formula(color_formula)
	content = image.render(
	add_mask=add_mask if add_mask is not None else True,
	img_format=format.driver,
	colormap=colormap or dst_colormap,
	**format.profile,
	)
	return Response(content, media_type=format.mediatype)

[vincentsarago]

I've removed the Deepzoom factory for now.

If someone needs it I'll be happy to help finishing what was started in ☝️