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adding subplots nomenclature automatically add import import string # Define a function to add custom subplot numbering with increasing alphabet letters def add_subplot_number(ax, font_size=16): global subplot_count subplot_count += 1 ax.annotate(f'({string.ascii_lowercase[subplot_count - 1]})', xy=(0, 1), xycoords='axes fraction', fontsize=font_size, xytext=(10, -10), textcoords='offset points', ha='left', va='top') function use in main function def fun(): global subplot_count subplot_count = 0 fig = plt.figure(figsize=figsize, dpi=dpi) ax4 = fig.add_axes([width_x*0.5, width_x, parameter_plot_height_ratio]) add_subplot_number(ax4)

Conda on Google Colab CondaColab !pip install -q condacolab import condacolab condacolab.install() After the kernel restart, you can optionally add a new cell to check that everything is in place: import condacolab condacolab.check() Once the installation is done, you can use conda and/or mamba to install the needed packages: !conda install {package_name} # or, faster: !mamba install {package_name}

creating credentials and saving the credentials as .netrc file in google colab !echo $HOME %%writefile ~/.netrc machine urs.earthdata.nasa.gov login kroy0001 password /#j%kWrPA,8.HRe !chmod 600 ~/.netrc additional downloading code with links in url.txt import time from multiprocessing.pool import ThreadPool from google.colab import output def download_url(url): start_time = time.time() !curl -O -b ~/.urs_cookies -c ~/.urs_cookies -L -n {url} return time.time() - start_time def download_parallel(urls): with ThreadPool(9) as pool: # Using 9 threads (10 CPUs - 1) for download_time in pool.imap_unordered(download_url, urls): print('time (s):', download_time) output.clear() # Read URLs from file and start parallel download with open("/content/url.txt", 'r') as file: download_parallel(file)

gdal installation google colab !sudo apt-get install gdal-bin for the given input raster, input vector, output path input_raster = '/content/2016_soil_m/SPL4SMGP.006_Geophysical_Data_sm_surface_0_doy2016001_aid0001.tif' temp_raster = '/content/resampled_raster.tif' shapefile = '/content/boundaryOutputx.shp' output_raster = '/content/output.tif' to create a new file with changed reslution !gdalwarp \ -tr 0.001 0.001 \ -overwrite \ {input_raster} \ {temp_raster} to cut to the area in the vector file as mask !gdalwarp \ -cutline {shapefile} \ -dstnodata 0 \ -overwrite \ {temp_raster} \ {output_raster}

google sheets Regular expression =CONCATENATE(REGEXEXTRACT(B2,"[0-9]*.[0-9]{6}"),",",REGEXEXTRACT(C2,"[0-9]*.[0-9]{6}")) or =CONCATENATE(REGEXEXTRACT(TEXT(A2,"00.000000"),"[0-9]*.[0-9]{5}"),":",REGEXEXTRACT(TEXT(B2,"00.000000"),"[0-9]*.[0-9]{5}")) >>for 31.4754428611 >> 31.475442 << 6 digits after decimal

Connect google drive from google.colab import drive drive.mount('/content/drive')

any image in array form visualization from google.colab.patches import cv2_imshow import numpy as np predicted_image = np.array(v7[:,:,2], dtype=np.float32) # This would be your image array cv2img = cv2_imshow(predicted_image) # This work the same as passing an image

Jax Array to image visualization import cv2 from google.colab.patches import cv2_imshow import numpy as onp image_array img = onp.array(image_array) cv2_imshow(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))

quick directory creation INPUT_FILES = 'input1' OUTPUT_FILES = 'output1' !mkdir -p {INPUT_FILES} !mkdir -p {OUTPUT_FILES}

Delete files in INPUT directory by checking common names from OUTPUT directory %%writefile goDeleteHolistic.js 'use strict'; const fs = require('fs'); let d=0; let darray1 = fs.readdirSync({INPUT_FILES}); let darray2 = fs.readdirSync({OUTPUT_FILES}); for (let index = 0; index < darray1.length; index++) { console.log(index) if (darray2.includes(darray1[index])) { console.log(d++) fs.unlinkSync({INPUT_FILES}+darray1[index]) } } ####################################node execution !node goDeleteHolistic.js

ffmpeg video to images with a framerate !ffmpeg -y -hwaccel cuvid \ -i '/content/test.mp4' \ -r 24 {INPUT_FILES}/out_%09d.png

ffmpeg Frames to Video creation and merging two created sreams #####################################create video 1 !ffmpeg \ -framerate 24 \ -pattern_type glob \ -i {INPUT_FILES}'/*.png' \ input0.mp4 #####################################create vodeo 2 !ffmpeg \ -framerate 24 \ -pattern_type glob \ -i {OUTPUT_FILES}'/*.png' \ input1.mp4 #####################################merge video 1 and video 2 !ffmpeg \ -i input0.mp4 -i input1.mp4 \ -filter_complex \ "[0:v][1:v]vstack=inputs=2" \ finalOutput.mp4 #####################################add sound of main video to final output video !ffmpeg \ -i 'finalOutput.mp4' -i 'm.mp4' \ -c:v copy -c:a copy -map 0:v:0 -map 1:a:0 \ OUTPUT_FILE.mp4

Clean display output Colab from google.colab import output output.clear()

Clean display output Kaggle from IPython.display import clear_output clear_output()

create horizontal image array import cv2 from google.colab.patches import cv2_imshow import numpy as np def show_image(argu): L1 = argu[0] predicted_image = np.array(argu[0], dtype=np.uint8).reshape(newsize) # This would be your image array a = predicted_image for i in range(0,argu.shape[0]): predicted_image = np.array(argu[i], dtype=np.uint8).reshape(newsize) a = cv2.hconcat([a, predicted_image]) cv2_imshow(a) show_image(metrics['logits'])

Zip a folder or file %cd {total_files} %cd .. !zip -r folder.zip {total_files}

Unzip a folder or file !unzip /content/archive.zip #unzipping the flower images from archive..

Kaggle file download %cd /kaggle/working from IPython.display import FileLink FileLink(r'ckpts/checkpoint_50/checkpoint')

Direct Google Drive upload !python -m pip install PyDrive2 %%writefile settings.yaml client_config_backend: settings client_config: client_id: 49621581740-a3fm39vtadtnmhrfmumoijj6jk9i4ij0.apps.googleusercontent.com client_secret: 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 save_credentials: True save_credentials_backend: file save_credentials_file: credentials.json get_refresh_token: True oauth_scope: - https://www.googleapis.com/auth/drive.file - https://www.googleapis.com/auth/drive.install %%writefile upload.py # Original author: Evren Yurtesen - https://github.com/yurtesen/ """ Uploads a file to a specific folder in Google Drive and converts it to a Google Doc/Sheet/etc. if possible. usage: upload.py example usage: upload.py 0B5XXXXY9KddXXXXXXXA2c3ZXXXX /path/to/my/file """ import sys from os import path from pydrive2.auth import GoogleAuth from pydrive2.drive import GoogleDrive from pydrive2.settings import LoadSettingsFile gauth = GoogleAuth() gauth.CommandLineAuth() drive = GoogleDrive(gauth) # If provided arguments incorrect, print usage instructions and exit. if len(sys.argv) < 2: print("usage: upload.py ") exit(1) # Exit program as incorrect parameters provided. parentId = sys.argv[1] myFilePath = sys.argv[2] myFileName = path.basename(sys.argv[2]) # Check if file name already exists in folder. file_list = drive.ListFile( { "q": '"{}" in parents and title="{}" and trashed=false'.format( parentId, myFileName ) } ).GetList() # If file is found, update it, otherwise create new file. if len(file_list) == 1: myFile = file_list[0] else: myFile = drive.CreateFile( {"parents": [{"kind": "drive#fileLink", "id": parentId}]} ) # Upload new file content. myFile.SetContentFile(myFilePath) myFile["title"] = myFileName # The `convert` flag indicates to Google Drive whether to convert the # uploaded file into a Google Drive native format, i.e. Google Sheet for # CSV or Google Document for DOCX. print("uploading >>>") myFile.Upload() !python upload.py '1adeXlEvClGh85JYdP1aCPmdvDbbzP7YL' a.zip

transfer/copy file/folder from a pc to remote pc in Linux sshpass is required to be installed On Ubuntu or Debian: sudo apt-get install sshpass or sudo apt install sshpass On macOS with Homebrew: brew install hudochenkov/sshpass/sshpass sshpass -p '{password}' scp -rp ./Documents/{folder_name_old}/ {RemoteUsername}@{RemoteIP_addr}:/home/{RemoteUsername}/{folder_name_new} sshpass -p '{password}' rsync -avz ./Documents/{folder_name_old}/ {RemoteUsername}@{RemoteIP_addr}:/home/{RemoteUsername}/{folder_name_new}

🪩🧁 OBJ to GLB 3D asset conversion including support for React install latest node version 2023 october !npm install -g n !n 20.8.1 !n latest <<will install the latest by default but here taken 20.8.1 copy from /drive to /contents folder !cp -r /content/drive/MyDrive/3D/20220714_132152.obj /content install obj2gltf !npm install -g obj2gltf input = '/content/20220714_132152.obj/20220714_132152.obj' output = '/content/20220714_132152.obj/20220714_132152.glb' !npx obj2gltf -i {input} -o {output} # >> !obj2gltf -i {input}.obj -o {output}.glb install gltfjsx !npm i [email protected] the --transform, -T Transform the asset for the web (draco, prune, resize) !npx gltfjsx {output} --transform !pip install trimesh import numpy as np import trimesh mesh = trimesh.load_mesh('/content/20220714_132152-transformed.glb') mesh.show()

csv file creation csv_dir = "/content/csvs" prefix = "" end = ["common_part_pf_filename"] ex_b = prefix+end[0] import os csvs_list = [os.path.join(csv_dir, f) for f in os.listdir(csv_dir) if f.__contains__(ex_b)] csvs_list.sort(reverse=True) print(csvs_list) # importing pandas import pandas as pd # merging two csv files df = pd.concat(map(pd.read_csv, csvs_list), ignore_index=True) d = ['name1', 'name2', 'name3'] #if there are 3 columns else add more as requirement df.columns = d print(df) df.to_csv("final_filename.csv")

points inside a region of a dataset import geopandas as gpd from shapely.geometry import Point shapefile_path = "../data/shapefile/india_states/india_states.shp" # Replace with your shapefile path gdf = gpd.read_file(shapefile_path) polygon = gdf.geometry[0] ## Extract lat/lon from the dataset latitudes = dataset['lat'].values longitudes = dataset['lon'].values points_inside = [(lat, lon) for lat in latitudes for lon in longitudes if polygon.contains(Point(lon, lat))] points_inside