kopia lustrzana https://github.com/OpenDroneMap/WebODM
47 wiersze
1.4 KiB
Python
47 wiersze
1.4 KiB
Python
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import rasterio
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from rio_tiler.mercator import get_zooms
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from .tasks import TaskNestedView
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from rest_framework import exceptions
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from rest_framework.response import Response
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class TileJson(TaskNestedView):
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def get(self, request, pk=None, project_pk=None, tile_type=""):
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"""
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Get tile.json for this tasks's asset type
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"""
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task = self.get_and_check_task(request, pk)
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extent_map = {
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'orthophoto': task.orthophoto_extent,
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'dsm': task.dsm_extent,
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'dtm': task.dtm_extent,
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}
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if not tile_type in extent_map:
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raise exceptions.ValidationError("Type {} is not a valid tile type".format(tile_type))
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extent = extent_map[tile_type]
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if extent is None:
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raise exceptions.ValidationError("A {} has not been processed for this task. Tiles are not available.".format(tile_type))
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raster_path = task.get_asset_download_path(tile_type + ".tif")
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with rasterio.open(raster_path) as src_dst:
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minzoom, maxzoom = get_zooms(src_dst)
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return Response({
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'tilejson': '2.1.0',
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'name': task.name,
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'version': '1.0.0',
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'scheme': 'tms',
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'tiles': ['/api/projects/{}/tasks/{}/{}/tiles/{{z}}/{{x}}/{{y}}.png'.format(task.project.id, task.id, tile_type)],
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'minzoom': minzoom,
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'maxzoom': maxzoom,
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'bounds': extent.extent
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})
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