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Questions tagged [mapping]

The act or process of making a map.

-6
votes
0answers
33 views

How to add an ArcGIS satellite map to QGIS?

I want to know how to add an Esri map (ArcGIS satellite map) to QGIS I want the same ArcGIS map in this web site www.twcc.fr .
0
votes
1answer
33 views

Extract coordinate data from KML path

I have a route defined by a series of waypoints - how can i extract as many coordinates as possible from that route as possible? I need to extract about 100-150 coordinates that lie along a route ...
2
votes
1answer
35 views

How do you turn coordinates vertical in Map composer?

When using map composer in QGIS, there is the option to `Draw coordinates'. once selected, the coordinates are situated in the horizontal position (as seen below). Does anyone know how to align the ...
3
votes
1answer
22 views

ArcGIS 10.2.2: How to display attribute values using a representative number of symbols?

I am using ArcGIS 10.2.2 Advanced. I want to produce a map where the value of attributes in each polygon is shown by a representative number of symbols in each polygon. I have used Quantities > Dot ...
0
votes
0answers
20 views

Highlighting map areas through map legend using Leaflet?

I would like to highlight different areas on a choropleth map when the mouse over the legend using Leaflet, but my code is not working: <head> <meta charset="UTF-8" /> <meta ...
0
votes
0answers
10 views

Creating static, custom styled high resolution map for free [closed]

I am looking for a possibility to generate a map as described in the title. Basically, I want to create a wallpaper for my apartment, so it is a one-time thing. I have desired style created in JSON ...
-1
votes
1answer
74 views

Making new map using QGIS? [closed]

I'm new using QGIS. I have been searching for information, a manual or a workbook that shows me how to make a map like this. I require the same map but with other division and new data. I have been ...
1
vote
0answers
26 views

ECW Exception when exporting a map in QGIS

Since monday Qgis has been unstable, everytime I try to export a map (or worse an atlas) it has crashed. I get the folowwing message : --------------------------- ECW Exception ---------------------...
0
votes
1answer
27 views

Simplifying a SpatialPointsDataFrame in ggplot world

I've been working on a map showing lines running across Europe. Each line is coming from a GPX file, parsed in like so: spdf <- readOGR("data/file.gpx", layer = "track_points") Now, if I plot the ...
0
votes
0answers
24 views

Leaflet.js geoJSON popup stopped working?

I have been developing a map that consumes geojson data and places markers on a map and creates popups. I have had this functionality working, but recently it has stopped working - I get the error "...
0
votes
0answers
26 views

Get coordinates from the OpenLayers drawn feature and redraw it again in OpenLayers?

I am drawing a polygon a extracting it feature coordiantes on "drawend" using the code var feature = evt.feature; var featureArray = feature.getGeometry().getCoordinates(); and it is giving me an ...
0
votes
0answers
9 views

Unable to view previously published AGOL Map Image Layer

It's been a while since I've worked with AGOl and map image layers. I'm in the process of republishing several Map Image Layers to a new server. The issue I've been having involves not being able to ...
2
votes
1answer
39 views

Colour Gradient as background colour in textbox for map in QGIS

I'm trying to make a map in QGIS which of course contains the title of the map within a textbox. As background colourscheme for this textbox, I want to use two colors with one color beginning at the ...
1
vote
0answers
57 views

Leaflet sidebar-v2 not floating display on mobile

I don't want the sidebar to always fill the entire vertical side, solved that by adjusting the height of the .sidebar.collapsed However, when on a mobile device it still fills the entire side ...
0
votes
1answer
45 views

Calculating coefficient of variation from gstat output to create uncertainty map in R

I was asked by my supervisor to create uncertainty maps of kriging interpolation based on the coefficient of variation ((sd/mean)*100%). I used krige function from gstat package to perform the ...
0
votes
0answers
46 views

Coordinate background colour using Print composer in QGIS

How to add coordinate background in Print composer? Example in attached picture with coordinates, which is not quite visible.
1
vote
0answers
129 views

Creating heat map with fixed max color value in QGIS?

I am trying to create a heat map using raster data in QGIS 3.0. I have made them previously in ArcGIS pretty easily, but I am having difficulties in QGIS. The difficulty I am having is setting a fixed ...
1
vote
1answer
37 views

Trying to convert tiff+tfw to mbtiles. Projection issues?

I have quite a number of huge TIFF files, each TIFF file has a TFW file associated. gdalinfo shows that the TIFF files are not real GeoTIFF (no embedded data). I know the TIFF's are in WGS84, UTM ...
2
votes
1answer
698 views

How to use custom icons for Leaflet Layer groups

Ok, I have searched posts and tutorials and could not find the answer to my specific application of this feature Almost all the examples use L.marker to simply place a marker on the map using various ...
2
votes
2answers
175 views

Creating evenly spaced grid for QGIS composer to show overlap in Map?

I would like to create an evenly spaced, overlapping grid so that I can use the QGIS ATLAS to display a large mapping extent with a little bit of overlap between each image of the Composer. I am ...
0
votes
1answer
33 views

Changing Carto basemap according to timestamp?

I'm making an animated "time-map" of the avaibility of renting bikes during a day (on Carto). Can I change the basemap so when it's day time the basemap is light and when it's night time the basemap ...
1
vote
2answers
175 views

Why North direction is shown in red color on aspect maps?

I have been recently exposed to an aspect map that looked like this: I wonder why North-y orientations (N, NE, NW) are shown in red and orange while South-y orientations (S, SE, SW) are shown in ...
2
votes
1answer
94 views

Changing the band for contour lines?

I am making contour lines for a NetCDF file for sea surface temperature and the contour lines display the first band only (bands represents different dates). Theres few 100 bands in the NetCDF, how do ...
4
votes
1answer
194 views

Missing features from featureCollection in Google Earth Engine but present in Fusion Table

I am using google earth engine code editor to extract some band values at specific point locations. To do so I have loaded my .csv file with point IDs and coordinates into Fusion Tables and the Map ...
1
vote
1answer
891 views

R tmap package: basemap not working

I want to use the package tmap to plot a simple shape with a basemap (e.g. OpenStreetMap). According to the help page of tmap this should be able by using tm_layout(basemaps = c('OpenStreetMaps')) ...
1
vote
0answers
20 views

Tenant Basis Geo web mapping using geoserver

I have to visualize huge public data of my merchant of their store data. where each merchant is one tenant and they are having their own data which we are rendering using GeoServer with each tenant ...
1
vote
0answers
121 views

PyQGIS standalone app remove/swichoff layers in the legend

I try to swich off remove layers from a legend in a qgis standalone application (QGIS 2.18) and found that the one way is to manipulate the QgsLayerTreeGroup (GIS.SE 142016). # remove two unwanted ...
0
votes
0answers
78 views

To plot temperature variability for a range of latitude and longitude in QGIS map

I am new user of QGIS. I have a data set of temperature per latitude and longitude for a certain island and want to plot the temperature variability within this island. My length of coordinate for ...
0
votes
1answer
50 views

Layers left off when running python via Windows Task Scheduler

My python script generates a number of PDFs from different mxds. If I run the script from Pythonwin everything works great. When I run the script via windows task scheduler it leaves off layers that ...
15
votes
1answer
820 views

Examples of cartographic 'jokes'

In the July 2017 edition of Swiss Review, a publication for Swiss living abroad, the cover feature was on Swiss Cartography. With my interest in GIS this obviously sent me straight to the article. ...
2
votes
3answers
324 views

Ggplot: Incorrect aspect and map position for northing and easting shapefile

Stats Canada released new census data in false northing and easting format. The shapefile from 2011 on long/lat format worked fine, but now the map is rotated and distorted. The code below downloads ...
3
votes
2answers
227 views

Small coordinate offset on QGIS using CRS ETRS89 / UTM zone 30N

I'm currently trying to produce simplified field slips on QGIS for an undergraduate mapping project in Villamanin, Northwest Spain. I've imported vector map layers from the download centre from the ...
0
votes
0answers
45 views

Mapping lat/lon to zip code level or climate region level

I have a CFSR 30-year climatology .nc file. I could read in the file and get lat, lon , date and temperature. Now I need roll up these information to a zip code then later to climate region ...
3
votes
1answer
228 views

Adjusting position of individual graduated symbols in ArcMap?

The house symbols in the map are overlapping each other. Is there any tool in ArcMap that I can manually move symbols individually?
1
vote
1answer
497 views

Conversion of files to Mapsforge *.map format [closed]

I am a complete newbie and not a cartographer. I organize off-road events such as 4X4 trail rides, biking events and running events. Many of these trails/event maps have been created in different ...
-4
votes
1answer
1k views

Generate flood map using qgis [closed]

How can I generate a flood inundation map and flood depth using QGIS within 3 hours?
1
vote
0answers
136 views

Calculating a proper region with insets for my MapView

In my app I'd like to create a snapshot of a Map and as I have a custom tile-source I need to create that on my own. I am currently stuck creating a proper region that fit's a track I want to display. ...
0
votes
1answer
194 views

Plotting contour map of modeled pollution data in QGIS? [closed]

I'm a complete beginner to GIS, and I'm trying to create a filled contour map of pollutant concentration data for an area of NSW, Australia. I've calculated the modeled concentrations of the ...
4
votes
1answer
154 views

Generating an irregular polygon buffer around a line in QGIS

I want to create a cartographic effect to represent a hiking trail. I thought that it may look cool to generate an irregular buffer around the line representing the trails so it looks more "natural". ...
1
vote
0answers
89 views

Generalize raster data dependent on DEM?

I'm working on a generalization process of probabilistic calculated raster data (rockfall extend, data shows probability of being hit by a rock in %; I used binary data, 1 for "one hit or more", 0 for ...
0
votes
1answer
987 views

googlemutant and leaflet problem view data

I just create a new map with leaflet and GoogleMutan with this three CDN libriaries: 1) maps.googleapis.com/maps/api/js?key=MYKEY" async defer 2) unpkg.com/leaflet@1.0.1/dist/leaflet-src.js 3) ...
0
votes
0answers
50 views

Apply my own search algorithm to a Map to find the best path?

I would like to implement my own route finder, which is not solely based off the shortest path, it will make a calculated decision with other variables taken into account. I will need the length of ...
11
votes
1answer
1k views

What types of lat/long coordinates are these?

I'm trying to map out a set of coordinates that I received: N 39,21.440 W 120,48.076 But i'm not familiar with the format. I'm familiar with DMS lat/longs and the standard(?) format (eg, 39.123234,...
2
votes
0answers
84 views

Mapping/visualising data with Long Tail?

I work with a dataset that gathers stats from all across a city. Each datapoint is of interest and worth visualising to our users, but there are a few parts of the city that significantly deviate from ...
2
votes
1answer
57 views

Counting within buffers using ArcGIS Desktop?

I am working on a project where I am trying to map affordable housing and bus stops. I have used the buffer tool to find out how many bus stops are there within a one mile radius of each affordable ...
-1
votes
1answer
181 views

Exporting complete river profile from hec-ras into ArcMap?

Whenever i import the data from hec-ras the result is the same, what mistake am i making here?
1
vote
1answer
206 views

How to collect training data for land cover classification?

I want to begin mapping various land cover such as coconut and pine. My issue is I do not have much experience in terms of collecting landuse information or analyzing satellite imagery and analysis. ...
0
votes
1answer
80 views

Open Source online software for making maps and displaying data?

I have noticed a number of online maps with data, however I wonder if there are any similar to umap that allows integration of data as in codap and offer features like openwebgis, ideally with an ...
1
vote
0answers
31 views

Get the GEBCO 2014 box from latitude and longitute

I am trying to get the information from http://coastal-mapping.eu/ It is a great viewer that shows the depth or altitude of a coordinate and the contour if you select tools and draw a line. The ...
1
vote
2answers
411 views

R GIS layers not lining up (spplot/plot)

I'm trying to make a choropleth in R using a polygon file, with a points layer of local care homes on top. When I plot each layer individually they're fine, however when I put them both together (...