Geopandas with file_uploader

🎈 Using Streamlit
1

Hi,

I have spatial data in (*.shp) format which is nothing but a polygon file with spatial coordinates.
I am using file_uploader to get the file from the local path and dump it in geopandas for further processing.

import streamlit as st
import geopandas as gpd

input = st.file_uploader(“Upload AOI *.shp file”, type=‘shp’)

if input is not None:
f_name = gpd.read_file(input)

Input file:

image
image739×491 102 KB

2

Hi @manish7738 -

Is this a question or a demonstration that this can be done in Streamlit?

Best,
Randy

3

A question, how can we do this with streamlit.

I see 2 workarounds;

  1. Read file as Geodataframe
  2. Get file Path from file_uploader and pass it to geopandas library

Maybe The second one seems workable, but I cannot fetch that details. Please help.

4

file_uploader will let you pass any sort of file, so uploading a shapefile works the same as any other file type.

If you use geopandas to make a GeoDataFrame, I suspect you could use st.pydeck_chart to display the data.

Best,
Randy

5

Thanks @randyzwitch, but for now I managed to do it with text_input

Before adding the path the application shows DriveError as below;

image
image757×809 33.3 KB

Please suggest how can I remove this from display.

Thanks in advance

6

In this case, it’s telling you that the file/directory you are providing doesn’t exist. Though, passing a string with the file path instead of sending the file directly shouldn’t be needed. Can you post your full app code?

7

Hi,
Some code issues which are fixed now.

Not sure if the question is relevant to streamlit;
I am using folium with streamlit to

  1. display the GeoDataframe on maps
  2. Create a new GeoDataframe and add to maps

But, both processes display 2 different maps. I want the new GeoDatframe to be added to same map.

Below is what I get now and to be fixed;

image
image1458×921 381 KB

Thanks in advance