Questions tagged [visualisation]
The representation of data in a viewable medium or format
451 questions
89
votes
6
answers
63k
views
Visualising WKT geometry string in QGIS
Is there a simple tool in QGIS to graphically visualise geometry formatted as text?
Example geometry:
POLYGON((571178 6337246,571178 6402217,598061 6402217,598061 6337246,571178 6337246))
Result:
A ...
- 4,520
62
votes
12
answers
9k
views
Visualizing speed of movement on static (= printable) map?
Imagine you're tracking, for example, vehicle or animal movement and receive regular GPS position updates. How would you visualize speed of movement on a static (= printable) map? I've been coloring ...
- 84.5k
44
votes
7
answers
22k
views
Comparing two spatial point patterns?
If I have two point pattern distributions within the same geographic region, how would I go about visually and quantitatively comparing those two distributions?
Also assume I have many points within ...
- 4,254
43
votes
5
answers
14k
views
Curved point-to-point "route maps" [closed]
I have recently been looking at airlines web pages that display their routes departing a certain city to all other cities they service. I would like to be able to create similar curved routes between ...
- 23.2k
42
votes
5
answers
37k
views
Visualizing large datasets with other than Leaflet
When using Leaflet to visualize a large dataset (GeoJSON with 10,000 point features), not surprisingly the browser crashes or hangs. A sub-sample of 1000 features from the same dataset works ...
- 529
41
votes
15
answers
7k
views
Using Computer Games to display GIS data?
Besides being a GIS user I'm a big computer game fan.
Games like Civilization, Minecraft, World at War and many others have a very powerful engine to display huge maps in a beautiful way.
Is it ...
41
votes
12
answers
40k
views
How would I draw and visualize custom maps based on OSM data?
I would like to be able to use openstreetmap data for a specific region as a source and "draw" from that the map of infrastructure improvements - mostly roads.
I want it to be self-hosted (not ...
- 631
38
votes
4
answers
31k
views
Simple thematic mapping of shapefile using Python?
I wish to visualize geographical data in Python, without using ArcGIS/ArcPy, and make a map.
On the internet I found how to make a thematic map using Python:
Here is some code that I tried:
...
- 525
34
votes
2
answers
21k
views
Styling road maps with QGIS?
I am trying to design a beautiful map using QGIS.
There is a similar question here Seeking QGIS tutorials and web resources? but I would like to focus on "designing a map using QGIS".
I was looking ...
- 776
33
votes
9
answers
9k
views
Visualisation of spatio-temporal data set?
I'm investigating visualisation of a spatio-temporal data-set.
What examples are available, online or offline, of high-quality spatio-temporal data visualisation?
31
votes
4
answers
6k
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Drawing wavy/wiggly lines in QGIS
Is there a QGIS function or plugin to draw wiggly line?
I have used "Spline Tool" to manually draw some waves, but it is time consuming.
If possible, I would like to draw something like:
...
- 31.2k
31
votes
9
answers
7k
views
Effectively displaying demographic data on a printed map
I would like to plot the following per zone (30 zones total) data on a printable/non interactive map:
Average age
Average household income
Number of households
Population density
Number of people
...
- 8,563
31
votes
8
answers
6k
views
When is a 3D Visualisation in GIS Useful? [closed]
I can currently only think of two cases:
to visualise potential changes in a landscape, such as the effect of adding windfarms, or the addition of a new building to an urban area. However both these ...
- 14.4k
28
votes
5
answers
6k
views
Are there any international standards for map symbology?
We are going to let our users add points, polylines and polygons to a map. Are there any international standards for map symbology?
For example for emergency symbols?
- 4,212
27
votes
7
answers
15k
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Examples of geovisualizations of global connectivity
I stumbled upon interesting visualization of global connectivity patterns:
'Major road and rail networks in Africa, along with transmission line
and underwater cable data.'
(Source, more ...
27
votes
8
answers
76k
views
Viewing LIDAR data (.las) in QGIS?
Is there an easy path to visualizing LIDAR data in QGIS?
I have some USGS LIDAR data in .las format downloaded from http://lidar.cr.usgs.gov/. This means I have both the .las and metadata in .xml ...
- 606
25
votes
9
answers
31k
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Viewing LiDAR data from web browser?
I am looking to host lidar data on my own server and give clients the ability to view that data through a web browser as a 3D point cloud (file would be in .las format or equivalent), possibly with ...
19
votes
4
answers
3k
views
How to generate schemas of GIS hardware / software / workflows?
Quite often I find myself in a situation where I need to explain hardware or software GIS infrastructure to people with no or limited knowledge of GIS. Or give an overview of geoprocessing tasks ...
user173
19
votes
5
answers
5k
views
Visualizing network on map [closed]
I have several hundred geo-referenced data points, and the relationships from that point to other points. I'm trying to figure out the best way of visualizing this on an interactive map (possibly ...
- 16.3k
18
votes
8
answers
1k
views
Examples of building-level geovisualization
I have recently stumbled upon a presentation and paper by Duncan Smith exploring geovisualization of 2001 area classification of output areas using building level resolution of urban area (London in ...
user173
18
votes
4
answers
2k
views
Using GIS tools for non-geographical problems
Many other fields have visual/"spatial" problems that can potentially be solved with GIS tools. I know I've used GIS tools for the odd non-geographical task and was wondering how much this happens and ...
18
votes
4
answers
6k
views
Displaying overlapping lines in QGIS
I have multiple line layers that represent bus routes and many of the routes overlap (i.e. near terminals, transfer locations, etc.) Is there a function in QGIS which will display both features next/...
- 181
18
votes
3
answers
2k
views
How to improve cartographic visualization of overlapping polygons?
I need some advice about how to improve the visualization of cartographic information.
User can select different species and the webmapping app shows its geographical distribution (polygonal degree ...
- 419
16
votes
2
answers
4k
views
Styling polygon layer as dissolved with QGIS Geometry generator
The QGIS Geometry Generator seems like a nice way to keep data intact while allowing for some creative visualisations.
I have a layer of tesselating polygons that I would like to style as a continuous ...
- 2,666
16
votes
2
answers
5k
views
Shifting display of overlapping lines in QGIS?
When points are overlapping, there is this property which allow to automatically display the lot of them separately around where they are, called 'Point displacement'. But it doesn't work for lines, ...
- 1,211
16
votes
7
answers
4k
views
What are some 3D visualisation tools that successfully work with GIS data?
There are a large number of 3d modelling tools available (both open and closed source). I would like to be able to:
Import GIS data into a 3d environment and retain georeferenceing.
Retain the ...
15
votes
4
answers
2k
views
Fitting a word/tag cloud into geographic boundaries
Are there any available tools or a recommend methods for displaying a tag or word cloud (also know as wordle) onto a world map, much like in this example: Map: United States of surnames? (There may be ...
- 253
15
votes
1
answer
911
views
Using non-contiguous cartograms?
The non-contiguous cartogram seems to solve a lot of the area distortions seen with traditional cartograms, while preserving the ability to identify areas by their shape lost with Dorling or Demers ...
- 2,234
14
votes
3
answers
20k
views
Making lines curvy in QGIS
In QGIS I am working on a map with lines connecting locations created with the MMQGIS plugin. Is there an easy way to make those direct lines somewhat curvy for aesthetic purposes?
I'm trying to ...
- 227
14
votes
7
answers
4k
views
How to implement value-by-alpha map in GIS?
I've been doing some background reading about cartograms recently and stumbled upon interesting alternative - value-by-alpha maps.
Concept is described in more details here and full paper is ...
user173
14
votes
6
answers
2k
views
Ways to visualize multiple large LiDAR tiles?
I want to load approximately 10 large LiDAR tiles for analysis. I have tried using ArcScene but it appears there is a limit on how much data ArcScene can handle at one time. Each tile is 65-90MB in ...
- 199
14
votes
3
answers
883
views
Is it possible to use symbols instead of colours to visualise raster cell values?
I have a raster image (GeoTIFF) with integer values. I know how to visualise raster values in QGIS using colormaps or similar, but I would like to assign symbols to each colour value instead - just ...
- 4,520
14
votes
4
answers
6k
views
Processing(.org) for geospatial visualization?
Does anyone know if Processing is being used for geospatial visualization? I can't find much out there, but this is impressive: http://benfry.com/zipdecode/
Here's one I just found: http://fathom....
- 1,987
14
votes
1
answer
2k
views
Producing Space-Time Cube in QGIS
Although I have seen many examples about doing this at ArcGIS Desktop, I am still trying to find a how to using QGIS. What I want to do is something like the image below.
- 303
13
votes
4
answers
2k
views
Showing the bounding box for every coordinate system in QGIS
I'd like to visualize where every coordinate system in QGIS is in the world. I can see the bounding box for them when I go to QGIS and select coordinate system:
But I'm trying to figure out how to ...
- 133
13
votes
10
answers
2k
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GIS and natural disasters - examples of geo-visualizations and geospatial analysis
I stumbled upon NY Times' web map of deaths from tornadoes in US.
Can you point me to some more interesting examples of geo-visualization and/or geospatial analysis of natural disasters and their ...
13
votes
1
answer
12k
views
Displaying overlapping points in QGIS
I am trying to produce a map of last years emergency responses in my area in 2018. I am entering a CSV file into QGIS which is working fine. The addresses and Lat and Long have been verified.
I have ...
- 131
13
votes
4
answers
4k
views
Showing antenna symbols on the map: point symbols or features (polygons)
I want to show a cellular network on a map.
Input data is a .csv file where each string is a cellular sector.
The attributes are: sector id, its coordinates, its azimuth and an angle of antenna beam ...
- 337
13
votes
7
answers
12k
views
Displaying 3D model of building in web-browser
I would like to try to show a proposed building in a web-browser such that the user can interact with it in a way similar to google maps streetview.
Is it possible to do this, in any platform?
I can ...
- 16.3k
13
votes
4
answers
1k
views
How to create spatial tag clouds or "tag maps"?
I'm looking for implementations of spatial tag clouds or "tag maps". Some papers I found talk about a Yahoo Tag Maps API, but I couldn't find any such thing.
I'd prefer OpenLayers-based solutions, ...
- 84.5k
13
votes
7
answers
2k
views
Creating regularly spaced points inside polygon based on attribute value using QGIS?
I have a polygon layer with an attribute value attached representing the count of individuals inside a polygon. I'm using QGIS 3.0.
I need to visualize the counts as a grid of points inside a ...
- 695
13
votes
7
answers
17k
views
Linux alternatives to visualize and analyze LiDAR datasets?
For a long time I have been using softwares based in Windows to visualize and analyze LiDAR data sets for forest application. Recently, I have started to move all my work to Ubuntu platform, but I'm ...
12
votes
8
answers
2k
views
How to automatically set polygons borders to improve map readability when rendering thematic maps?
When mapping an value as a color to render a thematic map the objects borders can alter the map readability a lot. For example in this thematic map of the US counties with black borders:
There are a ...
- 515
12
votes
5
answers
13k
views
Convert GML to GeoJSON
I have downloaded a GML file from Statistics Canada and would like to convert it into GeoJSON to use parts of it in a D3 visualization on the web. However, I did not find a converter that would do ...
- 223
12
votes
3
answers
4k
views
How do you choose the classifications on choropleth maps?
I find myself more and more struggling over defining break points when displaying choropleth (aka thematic) maps to view by others. Does anyone have any suggested references that help guide, both how ...
- 4,254
12
votes
1
answer
935
views
Point cluster symbology for different categories without overlapping symbols
I'm trying to visualize crimes based on if the crime happened during the day or night time. I've tried using the point displacement tool but I'm not satisfied with the results because the readability ...
- 637
11
votes
6
answers
5k
views
Are there any convenient sources of color palettes to use in ArcGIS software while producing maps?
Are there any convenient sources of color palettes to use in ArcGIS software while producing maps?
- 509
11
votes
4
answers
5k
views
Looking for a free program for 3D visualization
Looking for a free program or web software for 3D visualization. I'd like to have an ArcScene like abilities.
No editing needed, just need to see the data in a 3D format. It'd be really helpful for ...
- 4,387
11
votes
3
answers
8k
views
Replicating black and white hatching pattern fills in QGIS
I am looking to replicate black & white maps in QGIS, using hatching patterns and greyscales to indicate different categories of a continuous variable (example below).
It is possible/...
- 335
11
votes
4
answers
1k
views
Examples of geospatial scientific posters
Can you point me to examples of interesting scientific posters featuring results of geospatial analysis and/or geovisualizations?