Skip to main content

How to find nearest distance from a coordinate point inside a polygon to the edge (border) of the polygon in Python?

I currently have a dataset with lat and lon coordinates in my first dataframe.

And then I have a shape of a country, Nigeria.

world_filepath = gpd.datasets.get_path('naturalearth_lowres')

world = gpd.read_file(world_filepath)

nigeria = world.loc[world['name'] == 'Nigeria']

pop_est      continent  name    iso_a3  gdp_md_est  geometry

56 200963599.0 | Africa | Nigeria NGA | 448120 | POLYGON ((26958.294 253210.950, 35554.540 4322..

I am not sure how to find the NEAREST distance between the coord points in my first dataframe to the nigeria shape border. I have tried using shapely i think but I keep getting 0 since the coordinates are inside of the polygon.

At the end result, I want to the distance from the coord point to the nearest distance to the boarder of Nigeria for all the rows in the first dataframe.

Thank you :)

Edit -- To include more info and code I saved the first dataset with the point coordinates as 'coord_new'

df=gpd.GeoDataFrame(coord_new,geometry=gpd.points_from_xy(coord_new.longitude, coord_new.latitude))

#df= df.to_crs(26392)

#nigeria = nigeria.to_crs(26392)

df['distance1']=nigeria.exterior.distance(df)

df['distance1']=nigeria.boundaries.distance(df)

This is the way that I saw other people doing to find the distance from point to the border of the polygon. However, I keep getting 0 and then NaN in the distance1 column.



source https://stackoverflow.com/questions/75403236/how-to-find-nearest-distance-from-a-coordinate-point-inside-a-polygon-to-the-edg
Labels:

Comments

Post a Comment

Popular posts from this blog

Where and how is this Laravel kernel constructor called? [closed]

Where and how is this Laravel kernel constructor called? public fucntion __construct(Application $app, $Router $roouter) { } I have read the documentation and some online tutorial but I can find any clear explanation. I am learning Laravel and I am wondering where does this kernel constructor receives its arguments from. "POSTMOTERM" CLARIFICATION: Here is more clarity.I have checked the boostrap/app.php and it is only used for boostrapping the interfaces into the container class. What is not clear to me is where and how the Kernel class is instatiated and the arguments passed to the object calling the constructor.Something similar to; obj = new kernel(arg1,arg2) or, is the framework using some magic functions somewhere? Special gratitude to those who burn their eyeballs and brain cells on this trivia before it goes into a full blown menopause alias "MARKED AS DUPLICATE". To some of the itchy-finger keyboard warriors, a.k.a The mods,because I believe in th...
Post a Comment
Read more

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more