OpenDroneMap-ODM/opendm/tiles/tiler.py

51 wiersze
2.2 KiB
Python

import os
import sys
from opendm import log
from opendm import system
from opendm import io
def generate_tiles(geotiff, output_dir, max_concurrency):
gdal2tiles = os.path.join(os.path.dirname(__file__), "gdal2tiles.py")
system.run('%s "%s" --processes %s -z 5-21 -n -w none "%s" "%s"' % (sys.executable, gdal2tiles, max_concurrency, geotiff, output_dir))
def generate_orthophoto_tiles(geotiff, output_dir, max_concurrency):
try:
generate_tiles(geotiff, output_dir, max_concurrency)
except Exception as e:
log.ODM_WARNING("Cannot generate orthophoto tiles: %s" % str(e))
def generate_colored_hillshade(geotiff):
relief_file = os.path.join(os.path.dirname(__file__), "color_relief.txt")
hsv_merge_script = os.path.join(os.path.dirname(__file__), "hsv_merge.py")
colored_dem = io.related_file_path(geotiff, postfix="color")
hillshade_dem = io.related_file_path(geotiff, postfix="hillshade")
colored_hillshade_dem = io.related_file_path(geotiff, postfix="colored_hillshade")
try:
outputs = [colored_dem, hillshade_dem, colored_hillshade_dem]
# Cleanup previous
for f in outputs:
if os.path.isfile(f):
os.remove(f)
system.run('gdaldem color-relief "%s" "%s" "%s" -alpha -co ALPHA=YES' % (geotiff, relief_file, colored_dem))
system.run('gdaldem hillshade "%s" "%s" -z 1.0 -s 1.0 -az 315.0 -alt 45.0' % (geotiff, hillshade_dem))
system.run('%s "%s" "%s" "%s" "%s"' % (sys.executable, hsv_merge_script, colored_dem, hillshade_dem, colored_hillshade_dem))
return outputs
except Exception as e:
log.ODM_WARNING("Cannot generate colored hillshade: %s" % str(e))
return (None, None, None)
def generate_dem_tiles(geotiff, output_dir, max_concurrency):
try:
colored_dem, hillshade_dem, colored_hillshade_dem = generate_colored_hillshade(geotiff)
generate_tiles(colored_hillshade_dem, output_dir, max_concurrency)
# Cleanup
for f in [colored_dem, hillshade_dem, colored_hillshade_dem]:
if os.path.isfile(f):
os.remove(f)
except Exception as e:
log.ODM_WARNING("Cannot generate DEM tiles: %s" % str(e))