The representation of data in a viewable medium or format
9
votes
4answers
331 views
How can a 3D model of a building be displayed in a 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 ...
1
vote
1answer
63 views
Flow mapping visualization using a road layer
I am trying to illustrate travel using a flow map on a road layer. My data is:
city of origin
destination
number of travelers
I would like to use a polygon city layer (or point) and a road layer, ...
5
votes
1answer
38 views
How to design class breaks for a time series of choropleth maps?
I'm working with a time series of choropleth maps showing the same indicator for the same administrative boundaries, but spanning period of nine years.
What would be the most appropriate strategy of ...
4
votes
0answers
34 views
Spatial data visualization level of detail [migrated]
I have a 3D point cloud data set with different attributes that I visualize as points so far, and I want to have LOD based on distance from the set. I want to be able to have a generalized view from ...
0
votes
0answers
34 views
3D tool for a visual analysis
Given a 3D mesh I need to visualize and analyze properties and elements generated from the object such as:
tensors
coplanar/similar elements ( coplanar faces, aligned vertices, etc etc, 3D geometry ...
0
votes
1answer
39 views
Why can't I load more than 12 elevation files into NVIZ?
I have a large set of rasters in a GRASS mapset, which I would like to use as frames in an animation, visualizing the raster data as elevation. NVIZ is an obvious tool for this, but I'm having trouble ...
1
vote
1answer
63 views
ArcScene 10.1 Orthophoto Visualization Issue
I am attempting to visualize an orthophoto in ArcScene 10.1 at the same resolution it is at in ArcDesktop 10.1. I have set the "Quality enhancement for raster images" to it's highest extent. But, the ...
4
votes
2answers
148 views
How to drape a simple jpeg image over dem of some area?
How can we drape a simple jpeg image which doesnot have any geo referencing information over the digital elevation model in order to visualize it in 3D in QGIS?
3
votes
2answers
89 views
How do I visualize a time and space sequence of events in ArcGIS?
I would like to visualize this scenario:
I have 5 weather stations. I would like to present a sequence of rainfall events for them. For example, rain was starts at station 2 at 6:09 and then went to ...
13
votes
3answers
242 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 ...
6
votes
1answer
112 views
Fast data representation on the vector layers
I have found an interesting article about how HTML5 supports representation on large datasets.
Article can be found here. In the article it is said that HTML5 and feature simplification can ...
4
votes
1answer
337 views
Cartogram on ArcGIS 10.1
I am new to ArcGIS. I would like to build a cartogram map both on ArcGIS 10.1 and Web GIS. I have a basemap and a set of raw data in excel. I wondered what are the steps to build up a cartogram map on ...
2
votes
0answers
90 views
automate color palette generation?
I frequently am in need of color gradients that aren't readily available through ArcGIS or the ColorBrewer add-in. I find the process of manually creating gradients in Arc very tedious: saved custom ...
10
votes
1answer
144 views
What are the guidelines for the use of 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 ...
8
votes
3answers
213 views
How to present three spatial variables in one map? [closed]
I want to assign 3 category of variables in a single map.
In other words, I have to produce a cartographic visualization of the damage including a legend listing:
damaged surface area in the ...
5
votes
1answer
63 views
Where can I get US snowfall data with day resolution?
I need to visualize the snowfall in the USA for a given time period and city. So you could pick a given day and get a heatmap showing the amount of snowfall at each place in the USA on that day. ...
11
votes
2answers
211 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 ...
4
votes
1answer
77 views
High quality public transport trip planner examples? Trip visualization examples?
Do you know high-quality online public transport route/trip planners? I'm looking for sites with recognized usability, most carrier-owned planners are bad or very bad from Human-Computer Interaction ...
8
votes
3answers
199 views
How to properly Drape vectors over a DEM?
I have a DEM of my study area, and the streams in it.
Whenever I add both to ArcScene, and drape the vectors over the DEM, some of the vectors disappear from over the surface, and are visible under ...
3
votes
2answers
281 views
How to speed up the process of vector data visualization for a web application
I have a GIS web application and vector data that is going from the model to the web application. For developing the User Interface I am using JavaScript and OpenLayers. But sometimes the amount of ...
3
votes
1answer
49 views
Visualisation using simple plotting routines or advanced GIS packages?
When I have geographic data to be displayed, I usually use a plotting library to visualise the data, for example, combining matplotlib and basemap, or using the Matlab Mapping toolbox. For example, I ...
3
votes
3answers
203 views
GIS mapping software for visualizing and publishing maps [closed]
Currently I am writing my Bachelor thesis and for testing purposes I need software where I can visualize and publish maps and put vector data (point, line, polygon) on them. Can anybody recommend such ...
3
votes
1answer
183 views
Limit Zooming Geometry Features in OpenLayers
I draw flag feature on my map as follows:
myVectorLayer = new OpenLayers.Layer.Vector("Flag Geometry", {
renderers: renderer,
isBaseLayer: true,
projection: new OpenLayers.Projection("EPSG:900913"),
...
9
votes
4answers
621 views
Visualizing large datasets with 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 ...
5
votes
2answers
127 views
Why the modifications I do in QGIS doesn't appear when I save an OSM file I created?
Through QGIS I loaded an OSM file I created and I'm trying to visualize what happens with the file in terms of codes after some modifications like adding points, lines or polygons. But the problem is ...
4
votes
1answer
182 views
Looking for interactive map visualization software that allows user input
I am looking for a software tool that allows to create maps which can be customized by the user later on. To be more concrete: the user should be able to choose different indicators, create his own ...
9
votes
1answer
253 views
How to visualize azimuthal data with uncertainties?
I am trying to make a figure showing azimuthal data with a different range of uncertainties at each point. This oldschool figure from a 1991 paper captures the "bowtie plot" idea that I'm aiming for:
...
6
votes
1answer
184 views
How to adjust the granularity of a heat map in QGIS?
Not sure I am using the correct terminology here, so I have tried to describe my problem in detail. Please edit as needed.
I have a layer of points, a layer of roads and a heat map in a raster layer. ...
7
votes
4answers
279 views
Visualization of satellite image - directly in python
Is there any way (a package or what not), to visualize a geotiff image directly in Python? I don't want to use ENVI or ArcGIS or anything else. Thank you in advance.
2
votes
0answers
285 views
Visualization libraries for rendering 3D GIS world on iOS/Android
Are there any good 3D libraries/frameworks for rendering 3D worlds in geospatial coordinates on mobile platforms?
Use case: I have some known 3D geospatial features (eg. buildings) with their ...
0
votes
0answers
424 views
Plot poly-lines between few points in D3+Polymaps
I would like to create polyline on the click of the mouse. I have 4 circles 3 with radius 2 (Lets name it as B,C,D) and 1 with radius 8 (Lets name it as A). Now when I click on the circle A, poly line ...
1
vote
2answers
103 views
Display Rectangular Data Grid
I'd like a Linux program which displays ASCII ArcGrid files (NxM rectangular ASCII data grids which may have either integer or floating point values). There is no practical upper or lower limit to ...
2
votes
0answers
167 views
Tile Mill, Processing.org Maps to be developed
I had a small question. I actually would like to build an application which is very similar to this but as a map and not on “Multi touch Table Top”.
The functionality I need is
Plot different ...
0
votes
1answer
695 views
11
votes
4answers
489 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 ...
5
votes
5answers
309 views
What are the main fields of applications of 3D GIS?
I'm doing a scholary research on 3D GIS but i have some problems in finding where they are used. Does anyone know of any real life examples where 3D GIS has been adopted?
4
votes
1answer
381 views
How to use/interpret/visualise a distance matrix with unknown coordinates?
How would you go about using a distance matrix where points have no coordinates, i.e. what useful statistics can be made and how to visualise it in some useful way?
8
votes
1answer
311 views
Open source GIS tool for mapping health data
Im looking for an open source desktop gis tool that can be used for visualization and exploratory analysis.
I want it to be interactive and perhaps display two or more maps at the same time to allow ...
3
votes
2answers
443 views
Is there a way to make Google Earth only display the outline of continents?
I want to do a visualization in Google Earth and I don't want to see all the different colours of the satellite images. Instead I'd like just the outline of the continents/coastlines, maybe a colour ...
8
votes
2answers
512 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 ...
22
votes
7answers
1k views
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 ...
19
votes
4answers
484 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 ...
3
votes
4answers
691 views
Where can I find free Bathymetric data for Indian Ocean?
I am looking for bathymetric data, to place in a map of India for visualization only.
I don't really need very high resolution data, since the the map will be at a very small scale: Maybe 1:1Million ...
7
votes
0answers
219 views
Is it possible to add photo-realistic clouds in ArcGlobe animations?
This question asked about the best software to produce professional fly-through animations, and included a link to a nice video of the Grand Canyon.
That video includes photo-realistic clouds in the ...
8
votes
5answers
2k views
How to emulate this grayscale basemap look+feel in Google Maps
I love the design on the Development Seed homepage, where they've used a grayscale basemap with bold 3D-style graphic markers.
It appears that they've used the ModestMaps API to create a tiled ...
9
votes
1answer
467 views
What are some great examples of information dashboards integrated with core GIS capabilties via the web?
I am tasked with designing a GIS information dashboard (think energy consumption, capacity, or any other measurable value across a campus). I would like to get a sense for what has been done well and ...
15
votes
3answers
2k views
Visualising WKT geometry string in QGIS
A very simple question: Is there a simple tool in QGIS to graphically visualise geometry formatted as text?
Example geometry:
"POLYGON((571178 6337246,571178 6402217,598061 6402217,598061
...
5
votes
3answers
581 views
How to normalize choropleth maps of census information?
I'm trying to improve on the census-based maps on this site, which shows census values at 5 scales from Collection Districts through to State.
Currently the maps show whole numbers (eg total ...
22
votes
2answers
4k views
How to style beautiful road maps with QGIS?
I am trying to design a beautiful map using Qgis. As I'm a software developer not a designer, I was hoping that this will be easy, but it isn't!
There is a similar question here Qgis tutorials and ...
4
votes
2answers
245 views
How can I make my data efficient and “light” to do 3D Visualizations in Google Earth?
As a test run, I'd like to visualize population on census blocks for a few states (New England for example). I assume that the kml to do this will be huge, when you factor in the census boundaries and ...
