Emmanuel S. esgn

## get_tiffs_in_polygon.py
from urllib.request import urlretrieve
import rasterio
import pyproj
from shapely.geometry import box
from shapely.ops import transform
from shapely.geometry import shape, GeometryCollection
import sys
import os
import json
import tarfile

## gist.md

      
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                esgn
                / gist.md
            
            
              Created
              December 23, 2021 09:55
            
              
                Handle multiple git identities using .gitconfig files
              
          
    How to use .gitconfig files to handle multiple identities / git providers (github, gitlab, ...)

In the user home, define a parent .gitconfig file for your main account (eg: work account)
[user]
        name = John Doe
        email = john.doe@work.com
[credential]
        helper = store --file /home/johndoe/.git-credentials

  
## psr-ransac-no-fix.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/IO/read_points.h>
#include <CGAL/property_map.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Shape_detection/Efficient_RANSAC.h>
#include <CGAL/Polygonal_surface_reconstruction.h>


#ifdef CGAL_USE_SCIP // defined (or not) by CMake scripts, do not define by hand

## psr-ransac-fix.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/IO/read_points.h>
#include <CGAL/property_map.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Shape_detection/Efficient_RANSAC.h>
#include <CGAL/Polygonal_surface_reconstruction.h>
#include <CGAL/Polygon_mesh_processing/triangulate_faces.h>
#include <CGAL/Polygon_mesh_processing/orientation.h>
#include <CGAL/Polygon_mesh_processing/polygon_mesh_to_polygon_soup.h>
#include <CGAL/Polygon_mesh_processing/polygon_soup_to_polygon_mesh.h>

## poc-flux-lidar-copc.md

      
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                esgn
                / poc-flux-lidar-copc.md
            
            
              Last active
              December 20, 2023 13:59
            
              
                Extraction depuis le S3 LIDAR HD
              
          
    Extraction depuis le S3 LIDAR HD

Question pratique: Comment extraire un morceau de LIDAR HD depuis ces dalles COPC avec PDAL ?
Extraction sur une emprise incluse dans une seule dalle

On streame la donnée pour n'en récupérer qu'un morceau sur une emprise (bounds)
[

  
## dl_from_wfs.py
import sys

try:
    from osgeo import ogr, osr, gdal
except:
    sys.exit('ERROR: cannot find GDAL/OGR modules')

# Set the driver (optional)
wfs_drv = ogr.GetDriverByName('WFS')

## merge_las_files.py
#!/usr/bin/env python3

import os
import laspy
import shutil

file_ext = ".las"
output_file = "output.las"

if os.path.exists(output_file):

## ogr_st_contains_drop_attributes.sh
#!/usr/bin/env bash

# Working area in EPSG:2154
xmin=892000
ymin=6249000
xmax=894000
ymax=6247000

rm -rf footprints
mkdir footprints
	from urllib.request import urlretrieve
	import rasterio
	import pyproj
	from shapely.geometry import box
	from shapely.ops import transform
	from shapely.geometry import shape, GeometryCollection
	import sys
	import os
	import json
	import tarfile
	#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
	#include <CGAL/IO/read_points.h>
	#include <CGAL/property_map.h>
	#include <CGAL/Surface_mesh.h>
	#include <CGAL/Shape_detection/Efficient_RANSAC.h>
	#include <CGAL/Polygonal_surface_reconstruction.h>


	#ifdef CGAL_USE_SCIP // defined (or not) by CMake scripts, do not define by hand
	import sys

	try:
	from osgeo import ogr, osr, gdal
	except:
	sys.exit('ERROR: cannot find GDAL/OGR modules')

	# Set the driver (optional)
	wfs_drv = ogr.GetDriverByName('WFS')
	#!/usr/bin/env python3

	import os
	import laspy
	import shutil

	file_ext = ".las"
	output_file = "output.las"

	if os.path.exists(output_file):
	#!/usr/bin/env bash

	# Working area in EPSG:2154
	xmin=892000
	ymin=6249000
	xmax=894000
	ymax=6247000

	rm -rf footprints
	mkdir footprints