The representation of data in a viewable medium or format

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2
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0answers
7 views

Mapping datapoints over several floors of a building

I'm new to web mapping and am planning and investigating ways on how to best plot and visualize user flow through a building across several floors. We are planning on tracking users location based ...
0
votes
0answers
11 views

Error in showing the simple visulation

There seems to be a mistake in CartoDB. In the visualization wizard I selected the "Simple" visualisation for one of my layers. By mistake, I clicked "Torque Cat" after editing the layer for a while ...
1
vote
2answers
59 views

How to visualize pgrouting result?

So I use this query SELECT seq, id1 AS node, id2 AS edge, cost FROM pgr_dijkstra(' SELECT gid AS id, source::integer, ...
1
vote
0answers
15 views

Why does no data show up in the embedded CartoDB map? [closed]

It seems something went wrong with CartoDB. Recently I am trying to embed my visualization into my website. But only comes with a blank map. Then I noticed that the live example from the official ...
1
vote
2answers
84 views

How to build a map that highlights only one state?

I'm a journalist working on maps of several Alaska databases. I'm learning as I go and have a question that's probably very basic, but very important for my projects: Using CartoDB, how can I create ...
4
votes
2answers
62 views

How to build cylinder or cube multipatch objects in ArcGIS?

I'm trying to visualise a series of boreholes, which consist of points on the ground surface, and soil sample values taken at 0.01m depth intervals (in a related table). eg in this screenshot, I've ...
1
vote
0answers
88 views

QGIS 2.4.0-Chugiak: How to threshold NDVI to calculate emissivity for land surface temperature

I am analysing urban heat island using thermal band 6 of landsat TM-5 sensor with respect to Normalized difference vegetation index that derived from the Band 3(Red) and Band 4(NIR). Lansat TM years ...
2
votes
0answers
38 views

How to clearly display a huge shapefile with many point features?

I have two vector shapefiles, each with 54,000 features. When it's zoomed in on a small region, I can clearly see the feature colors: but as I zoom out, this is what I get: Any suggestions on ...
4
votes
2answers
63 views

Visualization of a field in Leaflet

In a Leaflet app I want to overlay raster data (technically speaking, a field) on a web map. The data consists of triples < lat,lon,value >, where value is in range [0,1], for example: ...
0
votes
0answers
21 views

Tools to generate all the possible geometries meeting specific constraints

I have an area = 2d polygon (generally a 4-side shape). I would like to generate all the possible rectangles matching the following constraints: that fall within the surface of the area with a ...
1
vote
0answers
44 views

What kind of methods are most commonly used to interpolate a relief?

I have got a topographic plan with height measurements which I converted to point shape file with height value in attributes. I was wondering, what kind of methods are most commonly used to ...
1
vote
0answers
25 views

Tutorial on creating geospatial visualizations with Processing(.org)?

Recently, I've seen examples, (lots of examples ) which use Processing(.org) for creating network visualizations. So far though, I have not been able to find any good tutorials on it. I was wondering ...
0
votes
1answer
46 views

how to display movements of a moving object in cartodb

I have few GPS tracks with lat long and timestamp. I want to present them on a map and to show how the movement took place using the time series location values (X,Y,T). I searched a lot but could not ...
2
votes
1answer
57 views

How to make a 3d visualisation of different peat layer to show the height of each layer?

I have bore hole point data that has about 5 to 7 types of peat layer and also has several depths. I also have digital elevation data of the area. I need to interpolate these layers separately, then ...
0
votes
0answers
10 views

Why did my Visualization tools disappear from the CartoDB Sidebar?

I was working with the "Intensity" visualization tool yesterday. Using the same data, I created a new map, and now I can only access: Simple, Choropleth, Category, and Bubble. Where did Intensity, ...
0
votes
1answer
34 views

Link to an individual info window in CartoDB?

I'm a new user, so thanks for your patience and assistance. I just published a very large parcel dataset on CartoDB. Another website would like to link their parcel dataset to ours. Meaning, if you ...
3
votes
3answers
307 views

Black/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 ...
1
vote
0answers
60 views

Which bins should be used for demographic data for a choropleth map?

I'm currently working on a project which produces a choropleth map similar to a map like this: http://dl.dropboxusercontent.com/u/54512470/Telefondaten_VIZ/index.html That map has 2x5 classifications ...
1
vote
1answer
76 views

generic “There is a problem with your connection” error in CartoDB

I changed the cartoCSS for a visualization, but in a pretty straightforward way (fyi: changed some numerical cutoffs to other numbers, did not touch anything else). I am getting a "There is a problem ...
10
votes
4answers
662 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 ...
0
votes
2answers
519 views

How to plot geoJSON using Python?

I have huge geojson file that I am working on: [{ "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ ...
2
votes
2answers
125 views

Is there any systematic way to pick two colors for a chloropleth showing a candidate's margin of victory

I have a simple 2-color map showing which candidates won in which precinct. Now I want to make one showing margin of victory within a precinct. So if candidate A won by a lot it would be dark green, ...
0
votes
0answers
65 views

Resources for mapping and displaying spatial data in R

I'd like this to be a repository for all resources available specifically for mapping and displaying spatial data in R. I've seen (and contributed) to this post, but would like this post to focus ...
0
votes
0answers
16 views

Visualization of poin.shp in QGIS 2.0 with manually selected min max values

I would like to visualize a poin.shp file in QGIS 2.0 with manually selected min max boundaries. The data consists of many different points lined up as a line. The aim is to visualize the different ...
1
vote
1answer
53 views

Unable to show tiff “parameters”

Why this raster (tiff) does not have any values? Why I am unable to perform: doubleclick -> onechannel pseudocolor -> clafify Both rasters are downloaded from the same site: ...
2
votes
2answers
201 views

How to increase resolution of 3D image in GRASS NVIZ

I am trying to make 3D visualization of terrain data and orthophoto using GRASS NVIZ via QGIS. I have been able to import both the DTM and the orthophoto in NVIZ window and successfully draped the ...
0
votes
0answers
42 views

Custom infowindow exception in CartoDB

I'm building a runtime layer and til a couple of days ago my code was working. Since today it started giving me an exception that is causing subsequent code not to work. Uncaught ReferenceError: ...
0
votes
1answer
57 views

Does CartoDB support Retina screens?

We are using CartoDB as our production mapping solution. Just wondering does it offers support for Retina screens and if so how hard can be to toggle on?
0
votes
3answers
225 views

Unable to make infowindow work in CartoDB runtime layer

I'm trying to personalize a layer created with CartoDB. The layer is created at runtime and the problem is that I cannot make work even easy things like custom infowindow or legends or click ...
0
votes
1answer
159 views

CartoDB create layer at runtime

I'm almost totally new to CartoDB. I've been looking around and read the api reference, but there seems not to be what I'm looking for. What I want to do is to "Create visualizations at runtime". ...
0
votes
1answer
70 views

Export ArcGis Time Visualization

How come when I try and export my time series in ArcMap it compresses the video to 3 seconds? My time change visualization is at least 10. What can I do to make my exported video longer?
1
vote
2answers
108 views

Interactive Exports from GIS

I'm looking for suggestions of interactive exports from GIS software. The need for this research is that many of our customers either do not have access to GIS or the knowledge to use it. One method ...
1
vote
0answers
93 views

How to represent the time(weekly/monthly) variationof a polygon map using one image?

I have a base map made up of three hundred polygons, each polygon get lots attribute values(For example, each week/month get a value). But I want to draw only one picture(due to page limitation) to ...
6
votes
3answers
399 views

Should I use a discrete or continuous scale for coloring a chloropleth?

I am making a choropleth for an upcoming local race using D3. There are two candidates running for an election. For any given polygon on my map, if the red candidate has more votes, the color should ...
1
vote
1answer
65 views

How to create a value-by-alpha map in Java?

Someone has post similar question as mine before : similar question But my objective is slightly different. I have a shape file (.shp) (a country map) I would like to write a piece of java code to ...
1
vote
0answers
170 views

Why aren't my CartoDB map layers loading?

We have built our own instance of CartoDB on our servers, setup production environtment successfully. We can upload shape files, table and map view works great. When we trying to create ...
0
votes
1answer
328 views

How to use cartodb.js with API key for privacy of data

I would like to use cartodb.js in my web page reproduce a visualization that I created at CartoDB. But I want to keep private my visualization and data at CartoDB (and I am going to secure my web ...
1
vote
1answer
27 views

Is it possible to move a visualization to another table?

Is it possible to move a visualization to another table? e.g. when merging two tables, it creates a 3rd. OR to completely replace a table and maintain the viz?? I don't want to lose the original ...
0
votes
1answer
51 views

Zoom level lost in public visualization?

I've got a visualization made where in the back-end it looks great. zoom level = 5. Then any method of publishing sets the zoom level to 3. Can this be forced to remain 5? strangely, this other ...
-1
votes
1answer
101 views

Extracting area with a range of lat long?

Is there any online tool to extract a certain area with a range of lat long? I'd like to overlay some locations on a map. To do so, I need a map whose range is specified so that I can determine the ...
2
votes
1answer
78 views

Las 1.2 format displays extremely long thin line of points

I am having difficulty properly visualizing aerial LIDAR data from the following source: http://csc.noaa.gov/htdata/lidar1_z/geoid12a/data/1124/ Taking any of the laz files, the point cloud displays ...
1
vote
1answer
147 views

Help me to visualize polygon and point data [closed]

As part of pilot project, we have collected basic/rudimentary Household survey in one district. We have both Polygon and point data.Attributes of the database include, No of people living in the ...
1
vote
1answer
113 views

What is the best way to display point data (with standard deviation) using QGIS/SAGA/Manifold? [closed]

I would like to display point data values (indicating biomass at a point) but also to show the standard deviation value for each point. What would be the best method to do this in QGIS (I'm a basic ...
1
vote
0answers
23 views

Display Dolfin XML in Web Browser?

I got a mesh as Dolfin XML and would like to know if there is anybody that had some experiences with the web visualisation of it. Is it possible to convert in X3D?
0
votes
0answers
64 views

Visualize Data as 3D taken from Excel file on a map

My problem is that I have to do 3D visualization of data on map. I have Excel file with three fields: Latitude, Longitude and Value,as shown here Excel file. I need to represent Value field on map as ...
0
votes
0answers
149 views

Why does Make NetCDF Raster Layer tool give Error 000276?

I am trying to view NetCDF files created into WRF into ArcMap 10.2. I used the 'Make NetCDF Raster Layer' Tool as described on the user-guide however, I keep getting the same error: 000276. Would any ...
0
votes
0answers
66 views

Visualizing large GML files on the web browser

There is a GMl file on the "C" location. When I want to visualize the gml data on the browser with using XSLT in c# .Net envoirenment, I am not able to visualize files which is not too small. My ...
3
votes
0answers
56 views

How to recreate past landscapes on ArcGIS 10.1? [closed]

I am trying to recreate the landscape as it may have been around 4000 BC. I have an idea about what tree species existed in particular regions of Scotland (by reading pollen studies). Now I need to ...
8
votes
4answers
1k views

How to view LiDAR data from a 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 ...
1
vote
0answers
31 views

QGIS rule-based point style responding to number of co-located objects?

I am mapping the geolocated location information for 5.5k Twitter profiles as point data. Many of them have the same location ie "London, UK" meaning that they return identical coordinates. On the map ...