albersusa | Tools , shapefiles & data to work with an AlbersUSA | Map library

 by   hrbrmstr R Version: Current License: Non-SPDX

kandi X-RAY | albersusa Summary

kandi X-RAY | albersusa Summary

albersusa is a R library typically used in Geo, Map applications. albersusa has no bugs, it has no vulnerabilities and it has low support. However albersusa has a Non-SPDX License. You can download it from GitLab, GitHub.

Creating a composite projection for states and counties of the United States that includes scaled and shifted polygons for Alaska and Hawaii is time consuming and potentially error-prone. Functions and data sets are provided to make it easier to produce maps with a composite projection. Furthermore, named projections for common transormations are provided to further increase mapping productivity.
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            kandi-support Support

              albersusa has a low active ecosystem.
              It has 63 star(s) with 13 fork(s). There are 10 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 18 open issues and 2 have been closed. On average issues are closed in 11 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of albersusa is current.

            kandi-Quality Quality

              albersusa has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              albersusa has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              albersusa releases are not available. You will need to build from source code and install.
              Installation instructions, examples and code snippets are available.

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            albersusa Key Features

            No Key Features are available at this moment for albersusa.

            albersusa Examples and Code Snippets

            No Code Snippets are available at this moment for albersusa.

            Community Discussions

            QUESTION

            Automatically resize Vega map based on lat/long or geojson
            Asked 2022-Mar-30 at 20:46

            I am attempting to create a map option within a data dashboard, where the map will always be of the state of Texas. For that reason, I don't want to give the user the ability to change the scale or recenter the map, because it's more likely to create confusion than contribute anything beneficial. However nearly all of the Vega documentation examples revolve around maps with that functionality.

            I do, however, need the view to change based on the user's screen size and changes to the dashboard window. For that reason I've been trying to use Vega's "fit" and "size" properties, rather than explicitly defining a center and scale. At this point I've gotten the map working, with the legend where it needs to be, colors are all right, etc., but I can't figure out how to get the window to resize on anything other than the full projection. Because I'm working with only a single state, albersUSA is the closest I can get but it's still far too wide of a view.

            Based on the documentation, I understand "fit" works on geojson data and I've tried using the original map data, and I even went ahead and just created a version with a square the approximate size of Texas, so I could place the coordinates directly into the javascript, but nothing has worked.

            Does anyone have any idea on how to get this working?

            ...

            ANSWER

            Answered 2022-Mar-30 at 20:46

            In your example try this for Vega projections:

            Source https://stackoverflow.com/questions/71654359

            QUESTION

            Problem with missing values in Altair or Plotly choropleth map
            Asked 2022-Jan-04 at 04:25

            I have data for a few states in the US and others are Null. While creating the maps, I would like to shade in the states with the missing value in the text but I am struggling to find the correct method. With my current code, I am unable to get the entire US map including the states with the Null value, and only the states with a certain assigned value pop up. I have also looked at previous questions posted and tried layering the maps but that gives me an error. here's how cc_df looks like

            Here's my code:

            ...

            ANSWER

            Answered 2022-Jan-04 at 04:25

            I was aware that the points you pointed out were issues, so I did some research against NaN values and found the following answers. However, the conditional judgment of the null value did not work, so I replaced the missing value with -1 to get the desired output.

            Source https://stackoverflow.com/questions/70545639

            QUESTION

            My lines won't plot correctly in altair.chart.mark_geoshape
            Asked 2021-Dec-01 at 07:22

            I need to plot the rivers in idaho from this website

            When I load it into geopandas and try to plot it through altair.Chart().mark_geoshape() my graph comes up with a bunch of random lines and they aren't plotting as expected. I don't know what is going on because I am new when it comes to geospatial data.

            I followed the pattern from this example https://altair-viz.github.io/gallery/london_tube.html but I wasn't able to plot the lines.

            Any thoughts or how I can do this would be of great help! Below is the code I am using. Thank you!

            ...

            ANSWER

            Answered 2021-Dec-01 at 07:22

            The reason it was not drawn was that the geopandas data coordinate system was different, so it needed to be converted to a format that represented latitude and longitude. My experience with this kind of thing is limited, so I had to figure it out by hand. I actually referenced a map of Idaho to make sure it matched.

            Source https://stackoverflow.com/questions/70178212

            QUESTION

            Plotting bar charts to a map in R ggplot2
            Asked 2021-Sep-07 at 07:38

            I would like to add bar charts to a map in ggplot2. Similar questions exist (this one and this one) but their answers involve ggsubplot, which is deprecated. geom_scatterpie() provides a way to do this with pie charts (example 1 but also see example 2), but pie charts are not as visually intuitive as bar charts. Similarly, we can plot bubble size onto a map using geom_sf(size=) as explained here. So is there a way to do this with bars instead?

            Reproducible example for making one bar per location:

            ...

            ANSWER

            Answered 2021-Sep-07 at 07:38

            Adding bars as points sounds a bit awkward to me. If you want to add bars to your map one option would be to make use of geom_rect like so:

            Source https://stackoverflow.com/questions/69082257

            QUESTION

            Altair choropleth -- adding values associated with each County to the map
            Asked 2021-Apr-28 at 01:45

            I am trying to add pop_april_2010 values associated with each County to the map. However my code only returns the base map when I don't include the line "color='pop_april_2010:Q'". Including the line results in an empty image without the map.

            Dataframe - df
            The data is from Kaggle > https://www.kaggle.com/camnugent/california-housing-feature-engineering?select=cal_populations_county.csv

            Code

            ...

            ANSWER

            Answered 2021-Apr-28 at 01:45

            The reason the chart is empty when using color is that the wrong column name is used in the lookup of the topojson file, so nothing is returned and you are passing a string referencing a non-existing column to color. If you inspect your topojson file you can see that each county's named is stored in the NAME attribute, not County.

            Further, if you compare your topojson to what is in the vega sample data (for easier comparison paste them into a json viewer) you can see that the key used in the sample data file for the lookup example (id) is at the top level of each geometry object while in your fie it is nested one more level under properties. This means that you need to use 'properties.NAME' as the lookup string (more details about working geogrphical data in this answer):

            Source https://stackoverflow.com/questions/67283970

            QUESTION

            Altair: geo_shape doesn't work with selection
            Asked 2021-Apr-08 at 20:24

            I am working on a Choropleth map that will display the similarities between different states. So when you select a state from a dropdown, the map will show the similarity it has to other states.

            For this, I am using 2 datasets:

            • DatasetA: a long-form dataframe, with 3 columns: State 1, State 2, and the similarity between them.
            • DatasetB: a GeoDataFrame that contains the geometry of each state.

            When I try to plot this without the selection, then it works:

            ...

            ANSWER

            Answered 2021-Apr-08 at 20:24

            I got this to work by using a transform_fold. The problem is that the transform_lookup only matches once, so if there are multiple matches in the dataset, it ignores them. So you have to use a wide-form dataset and then use the transform_fold to convert it back into long-form.

            Source https://stackoverflow.com/questions/66988074

            QUESTION

            How to apply a polygon mask layer in ggplot
            Asked 2021-Apr-05 at 19:58

            I'm looking to crop the density plot to only land while keeping to sf.

            Here's a simple example problem:

            ...

            ANSWER

            Answered 2021-Apr-02 at 16:34

            Create a rectangle of the same plot dimensions:

            Source https://stackoverflow.com/questions/66911086

            QUESTION

            Daisychain connect multiple polygons by single nearest points
            Asked 2021-Apr-04 at 20:59

            I'm looking to create a masking polygon for multiple polygons.

            It's easy enough for a single polygon:

            How to apply a polygon mask layer in ggplot

            but much trickier for multiple:

            https://www.stat.auckland.ac.nz/~paul/Reports/GraphicsEngine/definitions/definitions.html

            I feel like I'm fairly close but I need a method of drawing a line between a point for the closest polygon, i.e. I'd like to try and connect nearest islands with a line.

            While also connecting those polygons to an outer polygon box but only with a single line:

            ...

            ANSWER

            Answered 2021-Apr-04 at 20:59

            Edit: For only a mask around the islands:

            Source https://stackoverflow.com/questions/66936153

            QUESTION

            Storybook: Changing the value of the control doesnot rerender the Chart.js canvas
            Asked 2021-Mar-27 at 18:02

            I am using Angular based Storybook. All I wanted to do is to re-render the chart based on the values given in the Storybook's control. But the Chart remains static even after changing the value of the control. I tried so many workarounds, but still am at square one. The chart I wanted to display is a choropleth. I have used Chartjs and chartjs-chart-geo library to display the chart.

            My component in Storybook :

            ...

            ANSWER

            Answered 2021-Mar-25 at 15:12

            The getGeoData method which sets up the chart is called only during component initialization and it wont run when @Input values change. For these scenarios Angular provides ngOnChanges lifecycle hook. And this is where we need to tell Angular what needs to be done when @Input values change.

            Source https://stackoverflow.com/questions/66785599

            QUESTION

            Some projections from Vega-Lite do not work in Altair
            Asked 2021-Feb-16 at 18:28

            Based on the stack trace, I can see that Altair only accepts the following projections -

            ...

            ANSWER

            Answered 2021-Feb-16 at 16:27

            Altair follows the Vega-Lite schema.

            Vega-Lite lists supported projections in the ProjectionType definition; according to this, the allowed projection types are the following:

            Source https://stackoverflow.com/questions/66227230

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

            Vulnerabilities

            No vulnerabilities reported

            Install albersusa

            NOTE: To use the ‘remotes’ install options you will need to have the {remotes} package installed.

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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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