Questions tagged [maps]

A visual representation of an area-a symbolic depiction highlighting relationships between elements of that space such as objects, regions, and themes

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94 views

Allow user to pan after once 'box' is draw in Openlayer2

I am using this example http://dev.openlayers.org/examples/draw-feature.html to draw a box on a map using 'draw box' checkbox option. Now I want , After drawing box I can be able to pan on map ...
2
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1answer
67 views

Vector data displaying incorrectly

I'm having an issue where the vector layer I am using is not working with with the basemaps (see figure). I know the issues is because the vector data is trying to draw a shape from the end of one ...
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0answers
89 views

Union anti-meridian “multipolygons” after re-centering world map

My goal is to create a world map (using ggplot2) with a Pacific perspective. I have managed to re-center the map, by following this solution. Code below: # world country layer sppolys <-...
2
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0answers
501 views

How to change the layer selection view from Radio button to Image in Leaflet

I have implemented the below example to show the multiple base layers of map in my application using LeafletJs. Leaflet JS LayerGroup example I'm able to successfully implement the same but I'm ...
2
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0answers
94 views

Combine two raster maps with transparency

I have two maps in geotiff format for exactly the same area with exactly the same geoinformation. The first one is a real land map, the second one is a satellite picture with clouds (rgba where alpha ...
2
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0answers
168 views

Serving map files with Nginx

Currently i am serving map tiles with gunicorn and tilestache with nginx reverse proxying gunicorn. This works, although for some reason i am unable to do anything with the appearance of the map as it ...
2
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0answers
264 views

Shapes don't match google maps QGIS 2.18.7

I have some shapes (in EPSG:4326 wgs 84) that match with Openlayers ->google street maps only when I do enough zoom-in. But When I zoom-out seems that my shapes move to the east. What could be ...
2
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0answers
410 views

How to add multiple stop points for routing using ArcGIS in Android

I have a project where in I have a source and a destination, but in between there can be any number of stop points. I need to display a route from source to destination covering all the stop points. ...
2
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0answers
462 views

Find Maximum value per month in rasterstack/brick and corresponding timestamp R

When dealing with raster images, I found the raster and rts packages in R to be very flexible for analysing my raster data unlike ArcGIS. In my learning efforts, I have had to do some stacking/...
2
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0answers
273 views

How to create a legend for quantitative visualization with increasing icon size?

I am trying to find a way to do a map and legend like this: I am using QGIS 2.6 Brighton. The only way was to do a pie chart but I think it's not possible to create classes. I can create circles with ...
2
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0answers
4k views

Finding and selecting locations in database near 10 km distance from path

In the Google Maps API, I have this Javascript. It is finding and showing user the shorter path between two cities. <!--////// \\\\\\\--> <style> #panel { position: ...
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0answers
1k views

Convert Google Street View urls from OLD to NEW

My website accepts google street view links as submissions. Google has updated the url format some months ago. Does anybody know how the old format is converted into the new format (and vice versa)? ...
2
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190 views

Developing Carto Mobile App

I have the project to develop a mobile application (Android) being able to get offline maps, go on the field, collect datas about the area we're at and then synchronize it with our data server when we'...
2
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0answers
2k views

Requesting styled Google Map tiles via URL

I'm not working with the Google Maps API but I'd still like to be able to request styled map tiles. Is it possible to request a styled Google Map tile via a URL similar to the slippy map URL format ...
1
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0answers
32 views

Cannot download data from ArcGIS Online

I am new to ArcGIS Community, and I am currently following a MOOC to learn about ArcGIS. When I try to add Data from ArcGIS Online on the ArcMap Desktop panel, some of this data simply never show up. ...
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0answers
85 views

What is this line in the middle of nowhere?

Coordinates:https://www.google.com/maps/place/Ramsey+Island/@73.3566979,177.7371323,1017153m/data=!3m1!1e3!4m5!3m4!1s0x30fa7771d2910233:0xbf0ed91f32e1737c!8m2!3d12.4930556!4d97.8388889 What is this, ...
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616 views

Setting bounds for image overlay in Leaflet

I'm using LeafletJS map. I need to use an image overlay. I have done it like so: onMapReady(event: any) { this.layers.push(imageOverlay(this.imgSrc + "map.png", [[35.334847, 25.328072], [35.337847,...
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0answers
163 views

Creating map projection for net of geodesic dome?

I am working on a project that involves mapping the night sky's northern hemisphere onto the exterior surface of a small (16 cm radius) geodesic dome. The problem is, I don't know what map projection ...
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37 views

Bing Maps and OpenStreetMap

I'm researching the contribution of Bing Maps' aerial imagery for contribution to OpenStreetMap for tracing imagery. I understand that Bing allowed OpenStreetMap only the right to trace the imagery. ...
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0answers
572 views

Bing Map not rendering in New Print Layout QGIS 3.0

I am trying to sort out a map with a Bing aerial map plugin, yet when I select New Print Layout, the aerial image will not load/render, yet all other layers do. Can anyone point me in the right ...
1
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0answers
176 views

could not find function “merge_eurostat_geodata”

Just a couple of codes with the same error at the time of merge data: FIRST CODE: library(eurostat) library(dplyr) library(ggplot2) library(stringr) fer <- search_eurostat("fertility") ...
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0answers
432 views

Add gridlines to projected map in R

I am producing some maps to include in a publication. However, I am not able to include a graticule on my plot such that it resembles that in the image shown below. The image is projected but still ...
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0answers
25 views

How to get my store locations which are withing 30 min drive distance using google map

I have the list of stores in my database. I want to show only those stores to a customer who can reach that store within 30 minutes (configurable) of drive. using google api
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155 views

How to calculate if a turn is required from a set of coordinates?

I have some polyline data that represents a navigation route generated using Dijkstra's algorithm. Along this route I would like to calculate anytime a turn is required. Ideally, this would be some ...
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58 views

Change the content of Countries.txt

I'm following the steps on this page: "https://github.com/mapsme/omim/blob/master/docs/MAPS.md", "https://github.com/mapsme/omim/blob/master/docs/INSTALL.md" When I run this line "omim / tools / ...
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0answers
48 views

Some labels not being generated on map contours

I'm trying to produce a map using the latest QGIS incarnation: 2.18.11 After importing the UK OS contour data for one 100km grid square, I crop it using two contiguous polygons (1km squares). Two of ...
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0answers
255 views

Obtain elevation from a request lat,long with a map .tif

I am trying to get the elevation between two points in a route of Spain using APIs with HTTP request. I am using OpenStreetMap to get the routes, but I don't know how extract elevation with other tool....
1
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1answer
903 views

Map all time steps of a NetCDF file in R using a loop

I have a NetCDF containing temperature values over a certain region for 2011, with 1-hour intervals, so that means that I have 8760 maps. What I want to do, is plot all 8760 maps using one color ...
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289 views

Muhammad al-Idrisi lake Victoria map 12th Century

Wikipedia and many other sources state along the lines of, "An excellent map, known as the Muhammad al-Idrisi map from the calligrapher (sic) who developed it and dated from the 1160s, clearly depicts ...
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286 views

How to set zoom on the basis of the road in Google maps API?

I worked out a similarity Project a Google traffic, I would implement the same Google traffic visualization about the Data Traffic What a depending on the zoom level displays them or hides them. For ...
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0answers
252 views

Pixel sizes, cartographic scales and maps

In spite of being a widely discussed topic, I have not been able to find the complete answer to my concerns regarding scale's use in maps preparation. I am interested in finding in the relationship(s) ...
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0answers
32 views

Get Coordinates

I have the following tif metada: Geotiff_Information: Version: 1 Key_Revision: 1.0 Tagged_Information: ModelTiepointTag (2,3): ...
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0answers
351 views

Stretching a map to the full width of the browser after complete zoom out and without repetition of grids?

I want to extend the first block from left (with red inside borders) to stretch to the full width of the website. The example code is given below. html, body { height: 100%; background: #E6E6E6; ...
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0answers
498 views

Using historical imagery Google Maps API for Business

Is there a way using Google Maps API for Business to see historical aerial imagery, like you can in Google Earth Pro, with the slider bar they have at the top of GEP?
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67 views

Where can I find wind maps for the Mediterranean/Middle East?

I do debris modeling, sim, and analysis for missile interceptions. I have been looking for hours and I can't seem to find the information I'm looking for. So my question is... Where can I find ...
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0answers
626 views

KML Layer Watermark Removal

Hello right now I have a google maps page with KML Layers from multiple online resources. However all of these layers especially those from noaa have giant watermarks that take up large portions of my ...
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0answers
79 views

OpenLayers Multiple Maps Problem (maps leave blank)

I try a round with OpenLayers and was very impressed how mighty it is. But I have a problem (maybe a easy one, because I am not so trained in js). After adding additional maps all maps leave blank, ...
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0answers
91 views

Whats wrong with my code? Any reference missing?

I have been trying to add the navigation tool that will simply zoom in and zoom out. Push left and right using the click of the mouse. I'm using in the Silverlight, Visual Studio 2010. The XAML ...
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0answers
286 views

Mapping Kansas City based on X and Y Coordinates in R

I have a csv file in R that has coordinates of Kansas City, however, the values at these points aren't in any traditional longitude/latitude formatting that I am aware of. My data looks like this: ...
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0answers
82 views

Finding list of bus stops and what is next

First of all apilogies if this is already discussed. I am a low vision person and there is only so much time I can spend searching for information as it is stressful on the eyes. I spent considerable ...
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0answers
141 views

Can I use the PyQgis QgisPluginLayer to create heatmaps?

I am working in an application to generate maps from a bunch of MIF/MID files, I already created almost all the maps that I need, but, now I want to create heatmaps. I can't find any way of creating ...
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0answers
203 views

Creating responsive interaction with tiled maps

I think I may have two conflicting aims but... I need to create responsive Choropleth map very similar to http://leafletjs.com/examples/choropleth.html or http://www.texastribune.org/library/data/...
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0answers
662 views

pdf google maps export

In my php+postgis+geoserver+OL application I have to export a map in a pdf file. This map has two layer: the base is a google map layer and a vector layer as overlay. Is there a way to make a pdf ...
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0answers
27 views

How to plot postgres data on a map?

I have a table which has latitude, longitude and some sensor data (data 1, data 2,data 3) saved in postgresql 12. I am running the database on ubuntu 18 virtual machine with windows as host. I dont ...
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1answer
31 views

Plotting species distribution on map in R of Europe and Africa

install.packages("rgbif") library("rgbif") Species.Name <- "The name of the species" #Search GBIF and download observations Species.key <- name_backbone(name=Species.Name)$speciesKey locations ...
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41 views

Using ArcGIS styles on QGIS 3.12

I would like to use some styles downloaded from the internet in .stylx format within QGIS. Is there an easy way to do this? This is the link to the style I would like to use to create maps: ...
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0answers
26 views

Setting up MouseWheelZoom on the map in OpenLayers3

Well, I`m working on my own pet-project and using for this OL3. I need much help with creating a zoom for my map. The documentation for OL says that they do not have a built-in zoom by default, and an ...
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0answers
20 views

Where would I be able to obtain or purchase GeoJSON data for Manhattan submarkets?

GeoJSON data contains arrays of coordinates that create polylines. You can find geoJSON data for the 50 U.S. 50 state borders, for example. I would like proper geoJSON data for this: https://www....
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0answers
54 views

How to download all Points of Interest within a boundary from Google Maps

Is there any legal way to download google maps POI information such as number of POIs within a district boundary, using area shapefiles? How about length of roads within an area boundary? Output ...
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0answers
62 views

How to use SVG file as the source for a layer in OpenLayers

I found this solution online but this is defining your own projection. I do not want to use the projection below, I want to use 'EPSG:2326' and put the svg file over the map such that it overlays on ...