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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2answers
2k views

Offline Maps API for C# Desktop Application?

I have a C# WPF application which has browser control to display a Google Map. Google Maps API v3 is being used in the application. I use data received from a service to plot users current location ...
0
votes
0answers
36 views

How to create speed maps with gps data

I am looking to create a speed map from gps data, one of the problems is that the data overlaps due that the road is a track. How can be the best way to plot this map? I have Qgis and ArcGIS options ...
0
votes
1answer
40 views

Map with ggplot2 and bubbles

I've tried to plot a map of magnitude earthquakes in Colombia with ggplot. After many efforts, I got it. But, I need to focus in specially area where the data of magnitudes is (4, 4.1, 4.2, 4.3, ...
3
votes
1answer
2k views

Texture overlay in d3 map

D3 map can be drawn and colored as shown in this example : http://techslides.com/demos/d3/d3-world-map-zoom-points.html. I need to overlay a texture or image within the boundary of a given country. Is ...
0
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0answers
37 views

Basic display of kml file with map background on website, no gmapi

I have a series of kml files I want to display on my local and public websites. I use Google maps for other actions like displaying and entering locations, and it works fine, as long as I'm connected ...
1
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0answers
21 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?
0
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0answers
24 views

Google Maps iOS Optimized Route returns zero_results

I have an app that lets the user generate a route using a origin/destination point and waypoints in between. If I submit the url without optimized:true in it I get a polyline back that goes to each ...
-2
votes
0answers
19 views

Elevation data sources [migrated]

I need to know for example, heights of bridges/fly-overs from the land surface (just to know there is an elevated structure). How and where from can I get this data (preferably for EU)? Any open ...
2
votes
1answer
52 views

Plot attribute of shapefile with R

Does anybody know how to plot any attribute of a shapefile with R? For example, like this.
6
votes
1answer
569 views

Loading a png image as a map with ggplot2/ggmap

I am trying to find a workaround for ggmap's missing support of world maps (i.e. you can't create any maps that show latitudes > 80°, due to idiosyncrasies in the mapproj package). To a limited extend ...
1
vote
1answer
25 views

Openlayers 3 - Create symbol like openlayers 2 -> OpenLayers.Renderer.symbol.anySymbol

In the Openlayers v2 I could add symbols like: OpenLayers.Renderer.symbol.pointToIcon = [100, 70, 20, 50, 42, 70, 20, 90]; How can I do it with Openlayers 3 ? In the openlayers 3 I can use this ...
6
votes
4answers
1k views

Can someone help me identify this part of the map?

I'm sure 1 is a road, but what are those bumps on the side? I'm guessing 2 is a footpath. I have no idea what 3 is, if you don't know what it is, fine, let's leave it at that. I searched for what ...
3
votes
1answer
290 views

D3 missing zoom Choropleth + Raster

Following this example and Choropleth from Mike's site I am trying to get: image + vector + choropleth = my map As you can see I lost the zoom capability on the vector layer. I have been trying ...
1
vote
1answer
29 views

Converting DTM data to STL?

I'm new here and was wondering if anyone could help? I'm looking to make some 3D maps using DTM data but need to convert it into .STL format for my MasterCAM to read so that I can generate the CAD ...
0
votes
1answer
60 views

How to use custom offline map in iOS app [closed]

I'm developing an iPhone offline map application. I've illustrator map georeferenced (using mapublisher), have geodatabase (http://goo.gl/isw6IP) and parking data (shp/csv). Requirements: The map ...
1
vote
1answer
44 views

Is OpenStreetMap suitable for me?

I'm planning to create a map with GPS and routing support as well as other custom features for my local area. It will be for a commercial usage. I'm okay with showing OpenStreetMap logo in my app. Is ...
2
votes
1answer
27 views

Automating Choropleth map creation from table in QGIS?

I am trying to create soil nutrient maps from an excel table. My table has the location with multiple nutrients for each location (Nitrogen, Potassium, pH etc). I would like to create a choropleth map ...
0
votes
0answers
29 views

Google Maps JS API With Google Earth Spotted?

I've been, somewhat, following the news on the deprecation of the Google Earth API since it was first announced earlier this year. I'm an amateur GIS guy and I've been wanting to port over a simple ...
2
votes
1answer
50 views

POST to CartoDB Maps API via NodeJS

We are attempting to port a Python-based CartoDB authentication sample app to NodeJS: The example, "Basic auth middleware with CartoDB," was created by CartoDB labs. We have sucessfully replaced one ...
2
votes
1answer
214 views

Google Maps, HERE maps data in one database

I want to create a database from HERE and Google Maps to combine with my data. Then I create an application that can use this database. Basically I want to host the server with Google and here map ...
5
votes
1answer
101 views

How to add a topographic map to a shapefile?

I wonder how it's possible to add this topographic information (elevation) to the map of Santa Cruz Island and all of the Galápagos Island that I have here. library(rgdal) library(rgeos) ...
2
votes
2answers
32 views

Mountain chain and geometry

Concerning Mountains chain (in Wikipedia https://en.wikipedia.org/wiki/List_of_mountain_ranges) where can I find any maps with Montains chain and also geometry for those?
3
votes
2answers
795 views

render geotiff tiles as a map layer

i have the following problem: i have downloaded tiff files with gMapMaker and transformed them to GeoTiff using the associated .map files in QGIS. now i want to render these GeoTiff files to use them ...
0
votes
0answers
14 views

change projection for openlayers map with kml file

I use the basic example shown in dev.openlayers.org/examples/sundials.html to display kml files areas, with map.zoomToExtent(kmllayer.getDataExtent()) to auto center and zoom. The problem is that ...
1
vote
0answers
81 views

How can I get ALL addresses within a polygon, with Google Maps or another free provider? [closed]

I am hoping to find a good solution to doing this. We would like to be able to define a polygon of latitude/longitude values and be able to have a dataset of all of the addresses within that polygon. ...
1
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0answers
27 views

Build maps using android application (Geotiff File)

I am an absolute beginner of GIS and I wish to create a custom mobile application for Android. in this situation, i have an image (Geotiff) file to : convert and overlays maps make poligon make ...
4
votes
1answer
67 views

Map on canvas renders after image saving

I'm a beginner to Qgis and Python; i need a script (don't need it to be a plugin) to get maps of selected features from a layer satisfying certain conditions; Here is my code: from qgis.gui import * ...
0
votes
0answers
43 views

JSF2Leaf - JSF page parameters to bean

I'm using jsf2leaf framework to draw trajectories between two markers, like example. I need to send two parameters (id of point) to search possible trajectories between both. At the moment the ...
3
votes
1answer
533 views

Advice needed on JavaFX Map Rendering

A few months ago I inherited an old (10+ years) Java Desktop application that used maps and simple icons to represent point data to various users. The application was writted in Swing and used Esri ...
3
votes
1answer
637 views

Openlayers text layer is not working

I am trying to load markers from a text file using openlayers text layer, but no marker is shown, text file and icons are in same directory. However I am able to show markers using marker layer. My ...
0
votes
0answers
35 views

Geological map generalization polygon aggregation

I am working on generalization of Geological maps and the first thing I am wondering about is aggregation of separate patches that may have same class and which are closely situated to each other. ...
-3
votes
3answers
44 views

Do size comparison maps dispose of geographic principles? [closed]

Size comparison maps are very popular, and can be found all over social media. Are there any geographic mathematical principles which completely dispel them. Can we comfortably assert they are neither ...
3
votes
1answer
93 views

Is there any free or open offline satellite/aerial imagery for commercial use?

I'm developing a product for offline use in Brazil in rural areas where there is no Internet connection. I'm searching for a free imagery source which can be used offline in a commercial product. ...
-2
votes
1answer
78 views

Seeking Online Large Format Map Printing Service based in North America? [closed]

I am looking for an online large format printing service. My requirements for such a service are: large format (ANSI E +/-) high resolution double sided paper of different quality based in North ...
1
vote
0answers
537 views

Ward maps for Indian Cities?

i am looking for maps or shapefiles of ward boundaries of cities in india, it has been arround three days since i have been searching for them, but got very few. Does anyone know from where one can ...
1
vote
0answers
45 views

Seeking shapefiles for Indian Metros?

I am looking for shapefiles with ward boundaries for the following Indian cities: Mumbai (electoral wards), Hyderabad, Ahmedabad, Surat and Kolkata. Does anyone has them or know where I can get them ...
0
votes
0answers
88 views

Adding additional data to R maps - package data

Is there a way to add data to additional_data result set obtained from below line of code from R maps package? additional_data <- map('county', 'iowa', fill = TRUE, col = palette()) Above ...
3
votes
1answer
76 views

Two cartodb visualization on the same html page

I need to display 2 maps separate by vertical line on the middle of the html, it means on diferents and make some buttoms or aplicate the same zoom on both at the same time. I managed to put one ...
1
vote
0answers
94 views

Esri Javascript Point Clustering Map Size

I am using Esri Javascript API to display points on a map that are pulled from a json object. Everything is working great, although i seem to be having issues trying to figure out how to get the map ...
0
votes
0answers
102 views

How to find one polyline of google map overlaps other polyline in map?

I have two routes let's say route 1(Location A to F) and route 2(Location B to E) in Google map. How could i determine route 1 includes route 2? Here route 2 is shorter than route 1 so, coordinates ...
11
votes
2answers
316 views

Point overplotting on maps in R (e.g. with ggplot2) - how to push points to the side, mark original positions, combine close-by points …?

I've got a database containing languages, their longitudes and latitudes and a feature value (either category 1, category 2 or both - in the plot these are marked red, blue and green respectively). ...
1
vote
0answers
54 views

Geopackage in Offline Maps

I just wanted to ask around if you have already made any experiences in the usage of the format Geopackage in offline maps (on mobile devices). Am starting to get into it but can't find much ...
0
votes
1answer
48 views

What is the unit in which value returned by OL3's geom.getArea() method?

If It is Going to return in some standard unit What is it ? so that i can convert to my desired unit. Is it possible to set the Measuring Unit type like ESRI's API support?, That i'm able to set ...
1
vote
1answer
61 views

QGIS label spacing

Wondering how to space out the road names on my QGIS map to make it look cleaner?
2
votes
0answers
85 views

How to tell if map service is fully vector or raster?

sorry if this is a duplicate, but I was wondering how to tell if a map service (in web browser) is vector based or raster based? What I think to understood so far is that Google Maps for example is ...
2
votes
2answers
137 views

Is there a way to get undistorted maps in R (when using the OpenStreetMap package)?

When I download a large map within R (using the OpenStreetMap package) and I reproject the map (ideally to +proj=longlat), the map will always turn out distorted, making country labels etc. near the ...
0
votes
1answer
187 views

How do you calculate latitude and longitude of a point in a static map?

Background: I have generated a static map (map.png) of a particular city using mapnik and osm data of the highest zoom level. I am able to zoom in and zoom out successfully using my Java program. It ...
1
vote
2answers
58 views

Map with just City/Country/River/etc names.

I am looking for a plug in or a map, that only has the names of the countries and cities and other urban and/or geographical features. Does anyone have or know of such a map/plugin. I'v e been ...
0
votes
1answer
29 views

Mapping Ecclesiastical Parish Data

I am looking for a way to plot data relating to the number of people in a given location - the location being an ecclesiastical parish. So I need software that will allow me to import a map of ...
0
votes
0answers
35 views

How to Access tables and feature classes stored in Dropbox using Python

I stored some tables and shapefiles in by academic Dropbox account. I am trying to write the code block that will set the directory path to the featureclasses in Dropbox to a variable that can be ...