similar to: Draw a circle with a given radius in an existing map

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Hello, Could someone suggest a package/way to make a 3D raster plot of the Earth (with continent boundaries), and then make a "cut" or "slice" of it such that one can also visualize some scalar quantity as a function of the Radius/Depth across that given slice ? Formally, I would have a given, fixed longitude, and a list of vectors {latitude, radius, Value} that would show

So, I''m working on a search engine of sorts that restricts results to your local area. I can successfully return all entries within 15 miles of a particular point, and I can successfully return all entries that match a search query, but I''m having trouble combining the two together and doing pagination on them. Basically, for the range query, you do a SQL query that returns all

Hi all, I need a little help for construct an state's map on R. The first problem is to get the data. I have a datafile of longitude and latitude in the follow format: trajectory latitude longtude T -22.045618 -51.287056 T -22.067078 -51.265888 T -22.067039 -51.207249 T -22.059690 -48.089695 T -22.075529 -48.074608 T -22.072460 -48.044472 T -22.062767 -48.298473 T -22.077349

On 21/10/2020 8:45 a.m., Balint Radics wrote: > Hello, > > Could someone suggest a package/way to make a 3D raster plot of the Earth > (with continent boundaries), and then make a "cut" or "slice" of it such > that one can also visualize some scalar quantity as a function of the > Radius/Depth across that given slice ? > > Formally, I would have a

Dear R users, I have a city map in shape file (polygon). I also have some points that I hope to plot them to the city map. The only information I have about those points are their relative longitude and latitude to the city center by miles. Is there a way that R can help me to do this? Thanks. Gary [[alternative HTML version deleted]]

Dear everyone, as a newbie I fear I have made an easy mistake and am just too blind to see it. Can anyone help me seeing the (possibly) obvious? I have a command that creates a map of South America. In a separate txt-file I stored data about latitude and longitude of languages, and in a third column values that differ from language to language. The command should read that file and assign the

If you have "value" as a function of latitude and radius, isn't that a 2D (not 3D) scalar field? Which can be plotted using a regular heatmap. If you want a curved edge where depth=0 (radius=?), that's not too difficult to achieve. Not quite sure what continent boundaries mean in this context, but that could possibly be added to. Or do you want a 2D slice superimposed within a

Hi all, I would like to know a way of calculating the distance between 2 points when I already have the longitude and latitude of the points. For example : Point 1 : 52? 9'54.00"N 4?25'8.40"E Point 2 : 52?27'46.80"N 4?33'18.00"E Distance between point 1 and point in km .... Is there any functions already available for this ? Any help will be much

Does anyone have any recommendations for working with zip code distance ranges? I need to calculate the distances between US zip codes. Thanks! -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060711/f133d7de/attachment-0001.html

Hi, I have not been able to find answers to these questions in the FAQs, manuals, or R-help archives. If answers are available somewhere, please direct me to them. 1.) Is there a way to convert a table (e.g. represented as a data frame) to a function, specifying which columns are input and which column is output? It would seem that this would be useful for plotting experimental results,

Daniel, muchas gracias por contestar y tan rápido. Pues puede ser la solución, he hecho el cambio y sigue sin pintarme los puntos -> data_ <- toJSONArray(data_, json = F) map$geoJson( # leafletR::toGeoJSON(data_, # # lat.lon = c('Lat', 'Long'), # dest=output_geofile), data_, onEachFeature =

Hello R-helpers, I am trying to search for string that includes the caret symbol, using the following code: grepl("latitude^2",temp) And R doesn't like that. It gives me: > temp<-c("latitude^2","latitude and latitude^2","longitude^2","longitude and longitude^2") > temp [1] "latitude^2" "latitude and

Given a set of latitude and longitude coordinates pairs (stored in variables "latitudevals" and "longitudevals"), I would like to plot them onto the image of a equirectangular world map. I would like to plot each coordinate pair with a red circle, if possible. Does anyone have any suggestions as to how I go about doing this, whether using R or using another program like Google

Hi, i am using spatstat package for spatial data analysis and now i have a problem to create a point pattern. The points are in file "points.txt" (first column for Latitude and second column for Longitude ) and I imported them and separated each columns in two arrays x and y. If I plots x and y ( e.g plot(x,y) ) the result appears in square area without problems and the scale is

Hi all, I''m trying to figure out how to add a filter into a search. I''ve created the filter, basically copying the location filter from http://blog.tourb.us/archives/ferret-and-location-based-searches. But when I try to call Index.search and pass the filter in a hash with the key :filter, I get back that it is expecting type Data, and so I''m at a loss to figure out

1. Have you looked here: https://cran.r-project.org/web/views/Spatial.html (I assume you have done some web searches on possible terms like "3D Earth Data R" or whatever) 2. You might try posting on the r-sig-geo list rather than here, where relative expertise may more likely be available. Cheers, Bert Gunter "The trouble with having an open mind is that people keep coming along

I have 100 data files, which contains very huge data sets of location details ( e.g latitude, longitude, time, temp) Now I would like to save the all data of these 100 files in r object, so I can reload data any time. * Every file has different length of data latitude <- NULL longitude <- NULL time <- NULL temp <- NULL for ( i in 1:100) { data<-

Dear all, I have been trying to convert coordinates from longitude/latitude to utm but I got an error. As soon as the longitude coordinate is greater than 90, I get the folloowing error message: "error in pj_transform: latitude or longitude exceeded limits" Here is what I did: SP<-SpatialPoints(cbind(126.59,-14.30),proj4string=CRS("+proj=longlat"))

Dear R Users, I am using the reshape package to reformat gridded data into column format using the code shown below. However, when I display the resulting object, a single column is fomed (instead of three) and all the latitude values (which should be in either column one or two) are collected at the bottom. Also, the NA values aren't removed, despite this being requested in the code. Code: