The representation of data in a viewable medium or format

learn more… | top users | synonyms (1)

0
votes
0answers
10 views

How to color a KML with OGR/GDAL?

So I have successfully created a KML file and from an OSM file. Now I would really like to be able to color the lines of the KML file by using a value I calculated by using the KML. I already found a ...
0
votes
0answers
7 views

How to do not display Nodata values on IMG raster

I have a problem when I try to visualise (in ArcGIS 10.1) a raster file on IMG (ERDAS IMAGINE) format. The NoData values are displayed in black and I cannot find a way to do not display them. I've ...
1
vote
1answer
239 views

CartoDB - Method to show/hide layers for hatching overlap for > 4 layers?

Our goal is to show/hide individual hatched maps. Unfortunately we have more than the 4 max layers allowed in a viz. We successfully made and example where we show/hide the 4 layers in a viz: http://...
2
votes
0answers
23 views

FOSS way of creating space time cube?

I've been experimenting with ArcGIS Pro's "Visualizing Space Time Cube" tool but found that there is a feature limitation when I try to publish it via ArcGIS Online. My goal is to publish it on the ...
0
votes
2answers
51 views

Thematic charts on leaflet

In GIS charts are a part of good visualisation , I wonder if I can show a bar chart for example of my ON , OFF passangers in some Bus line here my plunker example my example each stop nodes point has ...
4
votes
1answer
220 views

Linux Tool to visualize CityGML file

I am looking for a linux program that allows me to visualize CityGML models (3D). I have tried a whole bunch so far (most of them via wine but also native ones) but I couldn't get a single one of them ...
1
vote
0answers
20 views

HDF5 files in QGIS

I am working with GPM GMI precipitation data that is stored in the hdf5 data format. All I am trying to do is import and visualize the data in the QGIS environment. I can import the precipitation file ...
4
votes
2answers
57 views

Display multiple identical polygons (with different attributes) on map

I need to create maps of multiple species in a certain area. However sometimes multiple species occurr in the exact same area. This results in two identical polygons on top of each other. Many of ...
15
votes
3answers
682 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 ...
55
votes
12answers
5k 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 ...
7
votes
4answers
11k views

Viewing .las format LIDAR data 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 ...
0
votes
0answers
43 views

Visualize Lat, Lon, Altitude

What software would be best for visualizing a series of latitude, longitude, and altitude coordinates? This is data for a series of satellite locations. I've looked into: MATLAB: the mapping toolbox (...
4
votes
2answers
117 views

Options for visualizing LiDAR data on (Mac) OS X?

I've recently come across open data LiDAR files for the city of Vancouver. I'd like to view it on my Mac (2011. 10.6.6 OS). My intention is to use the LAS file to identify what the tallest trees are ...
2
votes
1answer
41 views

What is the difference between using a PolyLine layer and a GeoJSON layer in leaflet?

This question arises because on my project I will have a backend that consists of gpx tracks. Then, my frontend queries it (based on time, location filters, etc.) and I will either get the ...
0
votes
2answers
30 views

mapping with spplot

This question should be easy! I am using spplot for visualizing a map with suitable results. However, I would like to know how to set the limits of z, because the values are not being discriminated. ...
11
votes
8answers
6k views

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 ...
5
votes
2answers
102 views

DEM out of a shaded relief LiDAR?

I have a DEM built from LiDAR data and the file extension is .tif. When I open this file in ArcMap it seems to be a shaded relief DEM (see the screenshot below). It happens I want to visualize the ...
10
votes
4answers
568 views

Examples of geospatial scientific posters

Can you point me to examples of interesting scientific posters featuring results of geospatial analysis and/or geovisualizations?
3
votes
2answers
131 views

Plot tilted map in R

I would like to plot a tilted map, similar to the image below. I would prefer to do this using ggplot2 but I'm glad if there is a solution using base R. Any ideas on how to do this? Here is a dataset ...
0
votes
1answer
69 views

How to export a 3D map into a image file?

With qgis, it seems to be possible to visualize 3D with two tools : nviz and Qgis2threejs. But i would like export the result into an image file. Is it possible to do that with qgis?
4
votes
2answers
1k views

Setting layer visibility in QGIS Python API

Im having a problem toggling the visibility of map layers in pyqgis (2.4). I have a simple interface, just the map canvas, no legend, and basically a radio button that toggles between two raster ...
20
votes
5answers
11k 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 ...
10
votes
3answers
2k 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 ...
33
votes
9answers
5k 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?
16
votes
7answers
2k 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 ...
2
votes
1answer
44 views

Grid with data table attached to each polygon

I'm trying to wrap my head around a request a colleague gave for some data visualization. She is performing field observations and for every observation, she is assigning a grid # that corresponds ...
32
votes
3answers
14k 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: ...
30
votes
2answers
12k views

Styling 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 Where to find QGIS ...
0
votes
1answer
49 views

Map editor R & leaflet?

That is possible on a web map designed by R & leaflet give the opportunity to the user to draw lines, polygons, choose the colors (like a map editor)? if yes what's the package that allows me to ...
184
votes
50answers
65k views

What Makes a Map Beautiful? [closed]

Oftentimes when we make maps it is based on our subjective interpretation of what is aesthetically pleasing. I would like it if people posted examples of beautiful maps, displaying any phenomena in ...
0
votes
0answers
27 views

Can I overlay a CartoDB visualisation on Bing Maps base?

If I am using Bing Maps as my base map, can i overlay a CartoDB visualisation (that I created earlier) on top of it? If so how do I go about doing that? The example on the cartodb site only refers to ...
2
votes
2answers
215 views

Laz LiDAR files display extremely long thin line of points

I am having difficulty properly visualizing aerial LIDAR data from the csc.noaa.gov source. Taking any of the .laz files, the point cloud displays as an extremely long thin line of points. Zoomed in, ...
7
votes
5answers
2k 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.
1
vote
1answer
537 views

Creating animated graphics to symbolize selections in ArcGIS Explorer?

I want to create and add some animated graphics to the features based on a query in ArcGIS Explorer, like some moving waves at the queried features. Is it possible?
0
votes
3answers
55 views

Delivering DEM layers with visualisation?

I'm not sure if it's right place to do that but I am in a strong need of getting some help. I am creating maps with lake bathymetry and there will be a lot of them. My task is to proceed the data ...
2
votes
1answer
106 views

Importing xyz text ascii GPS time-series for velocity visualization using QGIS?

How i can import text ascii xyz gps time-series in QGIS for velocity visualization? Example xyz MLBU 07SEP17 2007.7098 -0.119998752351520E+07 0.626106994328102E+07 -0.199557178074915E+06 0....
8
votes
6answers
1k 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?
0
votes
0answers
42 views

How to leave out cities with less than X number of observation in ArcGIS?

I would like to generate some quintile maps based on the averaged sentiment score in each city in the US. However, not all the city has the same number of data point. How can I tell ArcGIS to show ...
2
votes
1answer
66 views

Generalizing exact location of certain data points using Carto CSS?

I am dealing with some sensitive data for which providing a high resolution of accuracy of the location would be detrimental. However, the general location is not sensitive and useful to share. I ...
14
votes
6answers
1k 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 ...
2
votes
2answers
117 views

Identifying LiDAR tiles that are located within boundaries of AOI

I am attempting to replicate the process of creating digital elevation models from raw LiDAR data and have been provided with LAS files covering an approximate 530 square mile county area. However, I ...
2
votes
0answers
20 views

Applying colour ramp to DSM in ArcGIS using real elevation values as colour cut-offs?

I have a topo-bathymetric lidar DEM that I need to construct a CSR for in ArcGIS 10.3. I know how to make colour ramps and personalize them, but I'm wondering if it's possible to make a ramp based on ...
1
vote
1answer
148 views

QGIS - Problem in visualizing raster - Raster disappears when pan or zoom

I'm having the following problem in QGIS 2.12.0. When I load a raster, this disappear when I pan or zoom in or out the image. If I try to do some actions three four times, it appears again. It seems ...
3
votes
4answers
97 views

Showing spatial coincidence using QGIS / PostGIS?

I have a database of fire hydrants (HYD). The positions aren't very exact, the other fields are very useful. I also have a database of GPS'd fire hydrants (GPS). We are manually moving the HYD points ...
1
vote
0answers
151 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 has lots of attribute values(For example, each week/month get a value). But I only want to draw one picture(due to page limitation) ...
0
votes
1answer
112 views

How to display multiple points in a torque map with CartoDB

I would like to create a visualization with multiple points change size based on a certain value, right now I only have one (check it out) I need them all to change at the same time. I see ...
0
votes
1answer
56 views

CartoDB - visualise multiple properties

Is there a clever way to visualise more than one property in a single map overlay? Ideally I would like to produce a dot grid map in which the size of the dot represents a scaled property and the ...
0
votes
0answers
27 views

Zoom beyond level z16 with MapBox Studio Classic

I've loaded a georeferenced TIFF over a university (NTNU) into MapBox Studio. The fist problem is that everything is black, and I have to use the longitude/latitude of the area to find it. Second, and ...
2
votes
1answer
50 views

Setting colour on point cloud data from raster

I was reading this article: 14 ways to take charge of lidar data. Number 12 states that you can change the colour of your point-cloud data by using a raster image. Does anyone know the process for ...
3
votes
1answer
1k views

How to process topographic survey data in ArcGIS?

I am interested to find out how others process topographic survey data in ArcGIS. Often I am only given a text file or an Excel spreadsheet containing XYZ points and simple attribute information ...