FeatureServer | An open source Geoservices Implementation | Map library
kandi X-RAY | FeatureServer Summary
kandi X-RAY | FeatureServer Summary
An open source Geoservices Implementation
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- Compute all fields in the request .
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Trending Discussions on FeatureServer
QUESTION
I live in San Diego, and I have been running a little covid dashboard for my neighborhood using the SD County API. Here is the API website: https://sdgis-sandag.opendata.arcgis.com/datasets/covid-19-statistics-by-zip-code/api and here is the query I have been using: https://gis-public.sandiegocounty.gov/arcgis/rest/services/Hosted/COVID_19_Statistics__by_ZIP_Code/FeatureServer/0/query?where=ziptext%20%3D%20%2792131%27&outFields=*&outSR=4326&f=json
Everything was working just fine until the county implemented some kind of firewall to prevent DDOS attacks, and I can no longer access this API. I have a simple python request and it times out: requests.post(srQuery,timeout=5)
The employee I have been speaking with doesnt know why its happening and cant seem to fix it.
The only work around I can think of is to use a browser to access the API, and save the file to my computer, and read it in manually. Does anyone have a better idea? Or an idea of how to automate the saving of a browser file to my hard drive?
...ANSWER
Answered 2022-Jan-04 at 01:09You need to add User-Agent
to your headers in the request.
QUESTION
As you can see in the below living atlas layer, there are multiple layers inside (state,county,tract etc..)
But when I add this link, it will display only the first layer.(State). Then, when I zoom in the map, that layer disappears.
I want to display all the 4 layers of that feature service.(state,county, tract, blockgroups)
How do I achieve this?
.ts
...ANSWER
Answered 2021-Dec-17 at 19:35The issue you are having is that,
- you are trying to use
FeatureLayer
with the whole map service, that means in that service you have 4FeatureLayers
, one for each layer of the service,
- state https://services2.arcgis.com/FiaPA4ga0iQKduv3/ArcGIS/rest/services/US_Census_Age_Gender/FeatureServer/0
- county https://services2.arcgis.com/FiaPA4ga0iQKduv3/ArcGIS/rest/services/US_Census_Age_Gender/FeatureServer/1
- tract https://services2.arcgis.com/FiaPA4ga0iQKduv3/ArcGIS/rest/services/US_Census_Age_Gender/FeatureServer/2
- block group https://services2.arcgis.com/FiaPA4ga0iQKduv3/ArcGIS/rest/services/US_Census_Age_Gender/FeatureServer/3
- it disappear because the state layer, the first one (number 0), it is only visible until Max. Scale: 20000001
That type of service it is made on purpose in that way, to make it efficient (easy to understand) and with good performance. That is, it shows what it need to show at each scale.
Usually is better to display using MapImageLayer
or similar and then query the using the feature service. Sadly, in this case it does not offer that kind of service (MapServer), so you will have to creat four FeatureLayer
, one for each.
QUESTION
Error: StreamlitAPIException: ("Expected bytes, got a 'int' object", 'Conversion failed for column value with type object')
Traceback: File "/Users/temporaryadmin/Streamlit_app_v.1/streamlit_app_v1/main.py", line 48, in st.line_chart(df)
Problem:
I'm quite new to this and got quite excited with this first Streamlit project off mine. The file runs fine with I don't include the pandas_data = {'County': county_names}
but the list of strings stored in "county_names" is quite crucial to representing the data in the graph.
Any help in what to do would be highly appreciated, thank you. enter code here
Here is my code:
...ANSWER
Answered 2021-Dec-17 at 20:13You can make a bar chart with counties on the x axis by reshaping your data like this
QUESTION
I am using the sf
package in R along with the arcpullr
package to pull in data from an ArcGIS REST service and work with it as an sf
object. I have run into an issue with a MULTIPOLYGON where sf
is only buffering a part of the MULTIPOLYGON (i.e., it buffers one polygon but only tiny slivers of the other). I have not been able to replicate the problem when buffering the example found here.
Here is an MRE (sorry, you'll have to install arcpullr if you don't have it).
...ANSWER
Answered 2021-Dec-15 at 08:27You can pipe in st_make_valid
to parcel
, which will correct the geometry with the sf
object (i.e., make the geometry valid). This will allow for the buffer to plot correctly on all parts of the multipolygon.
QUESTION
I am looping through a list of names that are used to construct a url with JSON values. I'm using json and urllib in Python 3.x to extract JSON values to be used as parameters for for a process in the script. The first iteration everythng works fine but then I get a TYPE error after that.
...ANSWER
Answered 2021-Dec-11 at 11:51On first iteration, the statement with urllib.request.urlopen(url) as url:
does exactly what you want, but overwrites the url
variable with response of your urllib.request.urlopen(url)
part. So on next iteration, url
is HTTPResponseObject
and urllib.request.urlopen()
function gets that instead of valid url.
QUESTION
How can i modify the popupTemplate in esri? is it possible for me to modify the popupTemplate according to my design?
I have a popupTemplate
...ANSWER
Answered 2021-Dec-10 at 13:15Hello, a quick solution to modify the Popup template is to add another object with text and text type properties to the template array. the text value will be html code where we will create a div that will show the icons, these with their respective css classes. The most is CSS. Here is an example of the Popup template:
QUESTION
I'm using nodeJS to edit my Feature-Layer using REST API. My intention is to:
- Update my layer using Firebase Cloud-Functions
- Share my layer publicly
- But keep my layer non-editable for unauthorised users
- I want to use my API-Key for authentication.
My problem: If I edit my feature definition to "capabilities" : "Create, Update, Delete"
as mentioned here, then any unauthorised user can edit my layer, while if I don't, I get:
[ 'This operation is not supported.', 'Unable to add the features.', 'This operation is not supported.' ]
Authentication is declered in the documentation.
My code:
...ANSWER
Answered 2021-Nov-11 at 01:50One option is to make your edits to a private feature layer (that's editable), and then have a public (non-editable) view of that feature layer.
QUESTION
Im trying to get the data from this api with retrofit in android studio. https://services5.arcgis.com/fsYDFeRKu1hELJJs/arcgis/rest/services/FOHM_Covid_19_FME_1/FeatureServer/4/query?f=geojson&where=1%3D1&outFields=%C3%85ldersgrupp&outFields=Totalt_antal_fall&outFields=Totalt_antal_avlidna
The data i get is either null or 0 and I don't understand why.
This is my interface:
...ANSWER
Answered 2021-Oct-05 at 15:59You need to parse "FeatureCollection", then "Features", then the actual feature.
So the structure of your classes is not right
Fix the hierarchy of objects and you'll solve it
//this is just pseudo code below but it should point you in the right direction:
QUESTION
I have a block of code that I have written to pull JSON data from an API and convert it to a data frame. The base code is:
...ANSWER
Answered 2021-Aug-25 at 19:16Here's a version that puts the tryCatch
within the loop, and saves the errors and warnings that were generated:
QUESTION
I have a problem with accessing json data via a jquery-ajax request in JavaScript. I keep hitting against a 'Cannot read property [0] of undefined' error that I get in G. Chrome's console. I have tried to refer to other features than feature '0', as well as not specifying any, but I still get not results when running my script on browser and searching for one of the json Sources (going from 0001 to 0012).
This is part of my education so I have to access the data in this specific way. I'll attach my code, which relies also on jquery-1.7.1.min.js and ol.js libraries. I'll be immensely grateful to whom will have a lead on what I'm doing wrong.
...ANSWER
Answered 2021-May-24 at 16:47Just ran your code. As other pointed, is important to run console.log on the results to debug. On your case, added a console.log at success's function
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