Fiona | Fiona reads and writes geographic data files | Map library
kandi X-RAY | Fiona Summary
kandi X-RAY | Fiona Summary
Fiona reads and writes geographic data files
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Top functions reviewed by kandi - BETA
- Collect geojson data
- Write records to the collection
- Write record to file
- Dump a GeoJSON file
- Return an iterator for the items in the collection
- Decorator to require GDAL version
- Return the group position
- Concatenates multiple files
- Transform a geom
- Get an iterator over the keys in the collection
- Get the bounds of a collection of features
- Load features
- Check that the schema driver supports GDAL
- Calculate properties
- List all layers in a file
- Filter features from stdin
- Print the driver options
- Decorator to ensure environment variables are used
- Create a Session instance from a path
- Decorator to ensure environment variables are set
- Run test on URLs
- Distribution of features
- Convert crs to a string
- Run a filter
- List all directories in a given path
- Show environment
- Run sphinx
Fiona Key Features
Fiona Examples and Code Snippets
Lines of Code : 13License : Strong Copyleft (CC BY-SA 4.0)
Copydf = pd.DataFrame({
'latitude': lat_grid.reshape(-1),
'longitude': lon_grid.reshape(-1),
'value': grid_cubic.reshape(-1)
});
import matplotlib.pyplot as plt
plt.pcolor(np.array(df['longitude']).reshxres = lon_vec[1]-lon_vec[0]
yres = lat_vec[1]-lat_vec[0]
from rasterio.transform import Affine
transform = Affine.translation(lon_vec[0] - xres / 2, lat_vec[0] - yres / 2) * Affine.scale(xres, yres)
with rasterio.open(
'/tmp/new.tiwith fiona.open('field_shapefile.shp', "r") as shapefile:
shapes = [feature["geometry"] for feature in shapefile]
with rasterio.open('map_cubic.tif') as src:
mc, mc_transform = rasterio.mask.mask(src, shapes, nodata=np.nan, crop=Fpip install pip==21.3.1 --user
########## MAYAVI
# xcb plugin
RUN apt-get install -y --no-install-recommends xvfb libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 && \
apt-get clean -y
# Trywith open('dataframe.geojson' , 'w') as file:
file.write(batiments.to_json())
if 'black' in file['Colour'].values:
bl = file.loc[file['Colour'] == "Black"]
print("Yes")
import collections
data = ['Ginger', 'Willow', 'Scout', 'Roscoe', 'Bear', 'Kobe', 'Baxter', 'Zara', 'Fiona', 'Milo', 'Oakley', 'Dakota', 'Prince', 'Bruno', 'Panda', 'Dexter', 'Ziggy', 'Roscoe', 'Lucy', 'Boomer', 'Fiona', 'Ella', 'Emma', 'O>>> print(gdf.to_json(indent=4))
{
"type": "FeatureCollection",
"features": [
{
"id": "0",
"type": "Feature",
"properties": {
"district": "Belconnen",
conda create -n eomaps_env python=3.9
conda activate eomaps_env
conda install -c conda-forge eomaps
conda create -n eomaps_env python=3.9
conda activate eomaps_env
conda install -c conda-forge mamba
mamba installCommunity Discussions
Trending Discussions on Fiona
QUESTION
Since updating Spyder to version 5.1.5, I'm unable to install GeoPandas. I've tried the following:
conda install geopandas
conda install --channel conda-forge geopandas
conda install -c conda-forge geopandas
and
...ANSWER
Answered 2022-Mar-29 at 17:22After some research and a helpful post, I figured out a solution. There must have been an error when I previously updated Spyder to 5.1.5, and even though I had uninstalled and reinstalled Anaconda a number of times, GeoPandas wouldn't install until I removed Spyder through the Anaconda Prompt.
conda remove spyder
conda remove python-language-server (may return error but not a problem)
conda update anaconda (may return error but not a problem)
conda install spyder=5.1.5
conda install pandas
conda install geopandas
conda install openpyxl (had to reinstall)
QUESTION
I'm trying to set up a 1:1 relationship between two tables Places and People. A person has a home, and when that person is deleted the home should also be deleted. Other tables also use the Places table, so there is no column in the Places table that refers to the People table.
To try and achieve this, I've set the People table up so that when a row is deleted, there is a cascade delete on the foreign key pointing at the Places table row is also deleted.
ANSWER
Answered 2022-Mar-26 at 13:41The "ON DELETE CASCADE" action for the foreign key that you defined in the table People for the column HomeId which references the column Id of the table Places means that:
whenever you delete a row in the table
Places(which is the parent table in this relationship) all rows in the tablePeoplethat hold a reference to the deleted row will also be deleted.
See the demo.
In your case you are deleting a row in the table People and this does not affect at all the table Places.
QUESTION
I am taking data with latitude, longitude, and a z value and interpolating it using a cubic method. The values seem to be saved in a numpy array. Is there a way to save the interpolated results to a pandas dataframe? I'm trying to save it with a longitude, latitude, and z value column for the interpolated result.
The input file can be found here and is called nutrition.csv. Here is what I have done so far:
...ANSWER
Answered 2022-Mar-25 at 08:47You can construct a dataframe yourself from the data you obtained
QUESTION
I have generated an interpolation map using the scipy.interpolate module. I am needing some help saving the map as a .tiff file and saving it to my directory. However, I'm not sure if I need to convert it to a numpy array or not, as it needs to have the latitude, longitude, and the interpolated data in each cell. Any help would be much appreciated!
Here is the data. The nutrition.csv file can be found here.
ANSWER
Answered 2022-Mar-16 at 20:18So this is the follow up of your question that I answered earlier. To save an array to a geotiff you need to determine the geotransform, which means you need to know the coordinates of the upper left corner of your array and the resolution in x and y.
For your data it might work like this:
QUESTION
I am new to using python for processing rasters. I have an interpolated map that I have divided into a grid system. I need to overlay a field boundary (shapefile) and clip it to be within the boundary. I would also like to display it around the field after clipping. However, I am struggling with how to do this. Both the input data (.csv file) and shapefile can be found here. This code is run on Jupyter Lab, so I have blocked it into corresponding code chunks.
Here is the code to reproduce the project:
...ANSWER
Answered 2022-Mar-16 at 00:30if you can save your map_cubic as geotiff you can use fiona and rasterio.mask to do the clipping:
QUESTION
I'm trying to pip install geopandas as a fresh installation, so I want to remove existing packages like GDAL and fiona. I've already managed to pip uninstall fiona, but when I try to uninstall or reinstall GDAL it gives the following error message:
ANSWER
Answered 2022-Mar-10 at 01:12I just came across this question after getting the same error. Coincidentally I had just upgraded pip (I was getting tired of the yellow warnings).
All I had was to down grade my pip
QUESTION
I have a python script that previously worked but that now throws the error:ImportError: DLL load failed while importing _gdal: The specified module could not be found. I am trying to upload a shapefile using fiona and originally the message read: ImportError: DLL load failed while importing _fiona: The specified module could not be found. I am using anaconda navigator as my IDE on windows 11.
I am aware that this is a question that has been asked before and I have read the answers to those questions. The solutions, however, hove not worked either due to my circumstance or my misinterpretation and action in following through with it. So my question is either how do I fix this, or, if it is not that simple, to better understand the problem.
I have looked inside the DLLs folder within the environment folder that I am using and there is nothing in there with name fiona, gdal or geopandas.
My attempts so far:
1. uninstall and re-install fiona gdal and geopandas (as I believe they are dependent).
2. update all libraries and anaconda to latest verions.
3. download Visual C++ Redistributable for Visual Studio 2015. Ran into issue during download as it was already installed on my computer, likely because it is a windows computer. Is it possible that this would help if i moved it to a different path/folder?
4. Uninstall and re-install anaconda navigator on cumputer. Re-create virtual environemt and import necessary libraries. result: error in line: import geopandas as gpd: ImportError: DLL load failed while importing _datadir: The specified module could not be found.
If there is a fix that I have not mentioned or if you suspect that I attempted one of the above fixed incorrectly because of my limited understanding of how python libraries are stored please make a suggestion!
Thank you
...ANSWER
Answered 2022-Mar-08 at 14:39I was struggling badly with the same problem for the last couple of days. Using conda, I've tried everything I found on the internet such as:
conda update gdal
conda update -n base -c defaults conda
Creating new environments (over and over again).
Despite it's not recommended I even tried it with pip install... but no results.
At the end what worked for me was to create a new environment with Python version 3.6
conda create -n env python=3.6 gdal spyder
Let me know if it worked.
QUESTION
When I write my .gpkg I am losing the CRS. I have tried setting the CRS with .set_crs, or adding the CRS when writing the .gpkg (which creates a fault - "fiona._env - WARNING - dataset filename.gpkg does not support layer creation option EPSG"
My code
...ANSWER
Answered 2022-Feb-10 at 20:03vector.set_crs(4326) does not work in place by default. You either need to assign it or specify inplace=True.
QUESTION
I wrote a bunch of visualization functions in my python3 library using Mayavi. I am not very familiar with this library, nor am I with testing visualizations using python.
Ideally, I would just like the visualization code to generate some graphics on disk, I don't care too much about popping up windows (although I'm not sure to understand if Mayavi can work properly without popping such windows).
Anyway, my code works on local, but when I push it on develop, CircleCI fails at running the tests with the following error:
...ANSWER
Answered 2022-Feb-09 at 18:09I missed a dependency, qt5-default. I ended up having these lines for Mayavi running on Docker/CircleCi:
QUESTION
After implementing the suggestions I was given on my last post, I now have a working piece of code without any error messages, but my code will still only print the first object from my file. I would be grateful for any suggestions.
...ANSWER
Answered 2022-Feb-06 at 02:03Change the scope of ObjectOutputStream and FileOutputStream.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install Fiona
You can use Fiona like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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