choropleth | Choropleth Map of the 2019 Novel Coronavirus Outbreak | Map library

 by   ncovis JavaScript Version: Current License: No License

kandi X-RAY | choropleth Summary

kandi X-RAY | choropleth Summary

choropleth is a JavaScript library typically used in Geo, Map applications. choropleth has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Visualization of the Novel Coronavirus outbreak in Wuhan, China. Demo here. Compared with other existing visualization projects for nCoV-2019, nCoVis Choropleth collects and visualizes data of prefecture-level cities (instead of provinces), as well as other indicators such as infection density (infections per km²) and infection ratio (%). From July 17 2020, the project will be visualizing global data instead. You can still access the legacy verion (the Chinese prefecture-level cities map) through the link provided in the page.
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            kandi-support Support

              choropleth has a low active ecosystem.
              It has 155 star(s) with 12 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 1 have been closed. On average issues are closed in 147 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of choropleth is current.

            kandi-Quality Quality

              choropleth has 0 bugs and 0 code smells.

            kandi-Security Security

              choropleth has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              choropleth code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              choropleth does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              choropleth releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed choropleth and discovered the below as its top functions. This is intended to give you an instant insight into choropleth implemented functionality, and help decide if they suit your requirements.
            • Sort an object recursively .
            Get all kandi verified functions for this library.

            choropleth Key Features

            No Key Features are available at this moment for choropleth.

            choropleth Examples and Code Snippets

            No Code Snippets are available at this moment for choropleth.

            Community Discussions

            QUESTION

            custom tooltip/hovertext for choropleth created with plotly via R
            Asked 2022-Mar-26 at 18:36

            I'm an experienced R user venturing into plotly-r. (I am also new to working with geo data.) I'm trying to build an interactive choropleth and I've been able to get pretty close to what I want with ggplot() >> ggplotly(), but I also want to be able to do the same thing starting with plot_ly().

            I'm having a problem with tooltips. I've been able to set up custom tooltips using the first workflow, but I can't figure out how to do it when starting with plot_ly(). My code is below. The tooltip shows values from the split argument to add_sf(). I want it to show the string contained in the tmp1$text.

            ...

            ANSWER

            Answered 2022-Mar-26 at 18:36

            If you would have included a data sample, I'm guessing you would have had an answer within minutes of posting...

            You were SO close. You are missing one parameter. In the plotly call add hoveron = "fills"

            Source https://stackoverflow.com/questions/71628944

            QUESTION

            Leaflet image mask
            Asked 2022-Mar-19 at 02:49

            Is there a way of displaying images with a geoJson mask in Leaflet/another map library? I took "choropleth map of US States" example and I'd like to display a different background image in each state. How can I achieve it?

            Here's my code https://jsfiddle.net/d37zg8f9/, as you can see the images overflow from each state. In a perfect world something like that can be achieved by following HTML:

            ...

            ANSWER

            Answered 2022-Mar-19 at 02:49

            https://jsfiddle.net/9rzt2uoe/29

            You can use the fill property in CSS to fill SVG paths with SVG patterns.

            We need an SVG to hold a bunch of patterns that each contain an image:

            Source https://stackoverflow.com/questions/71478574

            QUESTION

            Rearranging polygons in geopandas for matplotlib plotting
            Asked 2022-Mar-08 at 20:20

            I am working on a project where I am using a shape file to make a choropleth map of the United States. To do this, I downloaded the standard shape file here from the US Census Bureau. After a little bit of cleaning up (there were some extraneous island territories which I removed by changing the plot's axis limits), I was able to get the contiguous states to fit neatly within the bounds of the matplotlib figure. For reference, please see Edit 4 below.

            Edit 1: I am using the cb_2018_us_state_500k.zip [3.2 MB] shape file.

            The only problem now is that by setting axis limits I now am no longer able to view Alaska and Hawaii (as these are obviously cut out by restricting the axis limits). I would now like to add both of these polygons back in my map but now towards the lower part of the plot figure (the treatment that is given by most other maps of this type) despite its geographical inaccuracy.

            To put this more concretely, I am interested in selecting the polygon shapes representing Alaska and Hawaii and moving them to the lower left hand side of my figure. Is this something that would be possible?

            I can create a Boolean mask using:

            ...

            ANSWER

            Answered 2021-Sep-22 at 17:25

            You could do something like this. You will have to find the right offsets to position Alaska where you want it to be exactly.

            Now, you have the following dataframe:

            Source https://stackoverflow.com/questions/69278742

            QUESTION

            How to sum the number of entries in a dataframe that are located within a geopandas boundary
            Asked 2022-Mar-05 at 06:11

            I have two geodataframes: One containing sightings of animals of a specific species called bird_df (with location as points), and the other detailing the boundaries of each municipality within my state called map_df.

            I want to use the geopandas method .contains(x) to count the number of animals that were found in each municipality and add that total to the boundaries dataframe so i can generate a choropleth.

            My pandas is a bit rusty but I've tried things like map_df[map_df["geometry"].contains(bird_df["geometry"]) == True]

            I just don't know how to wrap my head around this problem. Some help would be appreciated.

            Thanks

            ...

            ANSWER

            Answered 2022-Mar-05 at 06:11

            I recommend using an sjoin for this.

            Source https://stackoverflow.com/questions/71359323

            QUESTION

            How do I add a slider for a Plotly Express map?
            Asked 2022-Feb-26 at 21:46

            Hi I'm currently working with a dataset of new Covid-19 cases per 100k people for every county in the US.

            Dataset:

            County FIPS Week 1 Week 2 Week 3 Week 4 ... 01001 11.7390 11.7390 13.5299 11.7390 01003 4.5835 9.5110 17.5743 20.2621 01005 0.0000 9.1016 33.4078 33.4078 ...

            I was able to have a Choropleth map that captures any single week. In this case, week 4.

            ...

            ANSWER

            Answered 2022-Feb-25 at 07:33

            The data format needs to be converted to a vertical format instead of a horizontal format. The next step is to add an animation frame in the map settings. Specify the name of the week that will become the slider. Since the data is partial, I narrowed down the range to see if it was working correctly.

            Source https://stackoverflow.com/questions/71262045

            QUESTION

            Geodataframe.explore() error: __init__() missing 1 required positional argument: 'location'
            Asked 2022-Feb-25 at 21:28

            I'm trying to plot an interactive map using Geopandas and its explore() method in Colab.

            However, when I write:

            ...

            ANSWER

            Answered 2022-Feb-23 at 21:21

            The first positional argument to geopandas.GeoDataFrame.explore is column:

            column: str, np.array, pd.Series (default None)
            The name of the dataframe column, numpy.array, or pandas.Series to be plotted. If numpy.array or pandas.Series are used then it must have same length as dataframe.

            If you're plotting a dataframe with more than one column, be sure to provide the name of the column you would like to explore, as in:

            Source https://stackoverflow.com/questions/71239094

            QUESTION

            Trying to apply zoom on click with react-leaflet
            Asked 2022-Feb-10 at 18:25

            I'm trying to replicate some functions of the leaflet map https://leafletjs.com/examples/choropleth/ to react/typeScript but I'm getting an error when I try to add the function to zoom on a Feature it breaks, this is the code I'm working on

            ...

            ANSWER

            Answered 2022-Feb-10 at 18:20

            useMap can only be used within a component that is itself a child/descendant of . https://react-leaflet.js.org/docs/api-map/#usemap

            Hook providing the Leaflet Map instance in any descendant of a MapContainer.

            Here you try calling useMap in your EmployerLocationMap component, which contains a , but which is obviously not a descendant of one.

            A solution for your case could be to separate the map logic in another component that you can place inside the :

            Source https://stackoverflow.com/questions/71069837

            QUESTION

            How to add class to HTML element on marker click with Leaflet JS
            Asked 2022-Feb-07 at 03:47

            So, I'm trying to show a modal when a marker is clicked as a part of my Leaflet app. I already have some of the click functionality set on my marker layer, but I seem to be failing in triggering the necessary class being added to the modal element.

            Currently I have a modal div with the following HTML outside of my map div.:

            ...

            ANSWER

            Answered 2022-Feb-07 at 03:47

            The culprit is the line: e.target.getBounds()

            When you click on a (Circle)Marker, e.target is that Marker. But Point features do not have such getBounds() method (since they represent a single point, not an area).

            So your script fails with an error like:

            Uncaught TypeError: e.target.getBounds is not a function

            ...and the rest of the event listener is not executed, in particular the following line where you show your modal (document.getElementById('infoBox').classList.add('is-visible'))

            Since you already set the view around that Marker just before (mymap.fitBounds(markerBounds)), there is no need to that repeated call (maybe just a leftover of previous attempts?)

            Removing that line restores your modal behaviour.

            Fixed Plunkr: https://plnkr.co/edit/DfCKrJaNzM48dzuZ

            Note: your Plunkr was not working because you forgot the call to your initMap() function.

            Source https://stackoverflow.com/questions/71005719

            QUESTION

            NA values ​in choropleth plot legend with ggplot2 in R
            Asked 2022-Feb-01 at 07:49

            In a choropleth graphic map with ggplot2, an element corresponding to the NA values ​​of the variable Cuantil Esfuerzo Social por habitante is automatically included in the legend

            I have tried a few things:

            1. Using na.translate = F in scale_fill_manual() hides both the "NA" item from the legend and the polygons corresponding to those values. So the map is incomplete.
            2. Another option that I have used (as it appears in the code) is to define a color and a specific label (Sin datos) for the "NA" values ​​to give more meaning to the graph.

            There would be two options to build the graph according to the needs:

            1. Hide in the legend the label of the "NA" values. And add an annotation (annotate()) for the "NA" values, with a rectangle and text.
            2. To be able to separate (adding a space) the legend with the quartile intervals and a different one only with the corresponding, key and label, to the "NA" values.

            Data: https://www.dropbox.com/s/b39pp4qmbhns658/geosmunicipiosmu.R?dl=0

            Code:

            ...

            ANSWER

            Answered 2022-Feb-01 at 07:49

            I would suggest another alternative option, that consists on plotting a base layer on the desired NA color and then combine it with a second colorized layer using the na.translate = F approach. By doing this, the plot would have all the polygons as the base layer and the legend would omit the NAs. See below your code with these small modifications.

            Source https://stackoverflow.com/questions/70932373

            QUESTION

            How to extract and concatenate two values from two different external JSON files
            Asked 2022-Jan-11 at 10:21

            I was able to plot a choropleth map using D3.js version 7, as you can see here. Now I'd like to get an extra external data to complement it. I saw a lot of examples, but I'm kind of stuck now as the majority of examples are from previous versions that just don't work with the latest one no matter what I try.

            The most important part of the js code which differs from the original is the following:

            ...

            ANSWER

            Answered 2022-Jan-09 at 20:34

            console.log(d.results.tt_nominais) // this is undefined WHY??? <---

            You bind geojson to your SVG elements with:

            Source https://stackoverflow.com/questions/70637426

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install choropleth

            You can download it from GitHub.

            Support

            This repo looks like a mess, because some random bugs in ParcelJS made ugly workarounds for branch and file structrues inevitable. You wouldn't want to do that. 🤦.
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