kopia lustrzana https://github.com/OpenDroneMap/WebODM
64 wiersze
2.7 KiB
Python
64 wiersze
2.7 KiB
Python
import os
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from rest_framework import status
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from rest_framework.response import Response
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from app.plugins.views import TaskView, CheckTask, GetTaskResult
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from worker.tasks import execute_grass_script
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from app.plugins.grass_engine import grass, GrassEngineException, cleanup_grass_context
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from django.utils.translation import gettext_lazy as _
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class TaskContoursGenerate(TaskView):
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def post(self, request, pk=None):
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task = self.get_and_check_task(request, pk)
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layer = request.data.get('layer', None)
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if layer == 'DSM' and task.dsm_extent is None:
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return Response({'error': _('No DSM layer is available.')})
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elif layer == 'DTM' and task.dtm_extent is None:
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return Response({'error': _('No DTM layer is available.')})
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try:
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if layer == 'DSM':
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dem = os.path.abspath(task.get_asset_download_path("dsm.tif"))
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elif layer == 'DTM':
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dem = os.path.abspath(task.get_asset_download_path("dtm.tif"))
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else:
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raise GrassEngineException('{} is not a valid layer.'.format(layer))
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context = grass.create_context({'auto_cleanup' : False})
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epsg = int(request.data.get('epsg', '3857'))
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interval = float(request.data.get('interval', 1))
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format = request.data.get('format', 'GPKG')
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supported_formats = ['GPKG', 'ESRI Shapefile', 'DXF', 'GeoJSON']
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if not format in supported_formats:
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raise GrassEngineException("Invalid format {} (must be one of: {})".format(format, ",".join(supported_formats)))
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simplify = float(request.data.get('simplify', 0.01))
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context.add_param('dem_file', dem)
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context.add_param('interval', interval)
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context.add_param('format', format)
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context.add_param('simplify', simplify)
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context.add_param('epsg', epsg)
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context.set_location(dem)
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celery_task_id = execute_grass_script.delay(os.path.join(
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os.path.dirname(os.path.abspath(__file__)),
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"calc_contours.py"
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), context.serialize(), 'file').task_id
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return Response({'celery_task_id': celery_task_id}, status=status.HTTP_200_OK)
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except GrassEngineException as e:
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return Response({'error': str(e)}, status=status.HTTP_200_OK)
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class TaskContoursCheck(CheckTask):
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def on_error(self, result):
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cleanup_grass_context(result['context'])
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def error_check(self, result):
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contours_file = result.get('file')
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if not contours_file or not os.path.exists(contours_file):
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return _('Could not generate contour file. This might be a bug.')
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class TaskContoursDownload(GetTaskResult):
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pass
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