The representation of data in a viewable medium or format

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3
votes
1answer
34 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
22 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. ...
3
votes
2answers
69 views

Options for visualizing LiDAR data on Mac?

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 ...
-7
votes
0answers
16 views

Extraction of points clouds from buildings [duplicate]

Extraction of points clouds from building using automatics /semi automatics methods. I need a code for extracting rgb /xyz coordinates from Lidar data.
3
votes
2answers
118 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
60 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?
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 ...
5
votes
2answers
92 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 ...
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 ...
0
votes
0answers
26 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 ...
0
votes
3answers
54 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
102 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
votes
0answers
40 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
0answers
19 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 ...
3
votes
4answers
91 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 ...
2
votes
1answer
60 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 ...
1
vote
1answer
126 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 ...
0
votes
1answer
98 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
53 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 ...
1
vote
0answers
33 views

Display polygon colours as percent reflectance of sunlight

I have a set of polygons which I would like to display in different colours. The only information I can give on the colours is the percent reflectance of sunlight in different channels, e.g.: B: ...
1
vote
0answers
247 views

show some data on a map by OpenStreetMap from C# VS2013 [closed]

I am very new to Open Street Map. I have some data that need to be shown on a map by Open Street Map from C# VS2013. It can be WPF or windows forms. The data is about some statistics results by ...
2
votes
2answers
60 views

Any free Tools to display more than 5000 geography objects in SQL Server?

SQL Server 2008 and up allow you to create a spatial index. If you select records that include a geography or geometry object, a spatial data tab appears that can display up to 5000 points or lines or ...
0
votes
2answers
36 views

Visually identifying areas where older poles predominate?

I have a dataset of 300,000 poles including a number of attributes including pole age. What I'd like to do, ideally, is be able to distinguish areas that have more old poles. Unfortunately I can't ...
2
votes
0answers
73 views

How to visualise change matrices over time

i've hit a bit of a tricky visualisation issue; I am quantifying some land use and land use change (LULUC) over a number of years. Typically, for data going from year to the next, a land change ...
2
votes
2answers
111 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 ...
0
votes
1answer
32 views

Mapping Ecclesiastical Parish Data

I am looking for a way to plot data relating to the number of people in a given location - the location being an ecclesiastical parish. So I need software that will allow me to import a map of ...
1
vote
2answers
127 views

How can I visualize a series of points on a world map?

I'd like to run a big list of IP addresses through geolocation and then display them on a map, most preferably an OpenStreetMap one. While geolocation will probably be easy using GeoIP, I'm looking ...
1
vote
1answer
29 views

EasyCustomLabel in QGIS do not resize the labels

I use EasyCustomLabel to move some labels, but if I try to change the dimensions of the chars I cannot view any changes, both in the work and in the printing sheets. I use QGIS 2.6.1.
1
vote
0answers
60 views

Visualizing geo count data points in gradual colors using ArcGIS desktop?

I have data looking like the following: Latitude Longitude Class 35.773444 -78.6305752 0 38.82349688 -77.61919194 1 41.4985021 -81.7144364 1 39.9528 -75.2104 0 Longitude, latitude and ...
0
votes
0answers
27 views

how to use rubbersheet in arcGIS for my matching results

I developed an algorithm for matching road network instances. I need to visualize the matching results where an arrow shows the mapping between two instances. I have seen it in many papers but I don't ...
1
vote
1answer
60 views

Generate maps from different columns of shapefile with QGIS

I have a shapefile with N columns describing different attributes of some features. I would like to generate a grid of maps, where each map is a different column. Visually, I'm thinking of something ...
0
votes
1answer
89 views

Compare Multiple attributes visually

I am working on a project in which I want to take point features( tweets) and compare them to the GDP per capita of countries. I would like to have my end result be such as the following: GDP Class ...
0
votes
1answer
51 views

Copying the visual shapes from another layer to the current one, while keeping the current layers' database

There are 2 layers that have similar shapes but small differences. I want to keep the shape of layer 1 while having the data of layer 2, which includes more data and it will be animated using ...
3
votes
0answers
100 views

Visualizing variability in the size and shape of polygons

I am working with a data set of area restrictions imposed by criminal courts. These restrictions ban a person from entering a demarcated area. These restrictions vary in their size, shape, and ...
0
votes
0answers
84 views

draw coloured LINESTRING over map [.NET (C#) if possible]

I need to render linestring on the map (possibly OSM map) where each pixel (or at least segment) has assigned custom color. In my linestring, each point defining the line has also color definition. ...
1
vote
0answers
99 views

How to handle Point Data with date ranges

I am running into an issue with the time sliders in Leaflet. It appears that most all of the sliders developed for Leaflet operate on the assumption that each record in your data layer has a specific ...
1
vote
1answer
70 views

cartodb - understanding private “with link” visualizations

We are creating web dashboards for a small number of customers (~5) in which each customer can view private business-related statistics. We want to embed some visualizations inside the dashboards. ...
1
vote
1answer
168 views

3D Symbology for a Model Farm in ArcScene

I am working on visualization of a model farm I have developed consisting of various types of grazing land, cropping areas and other. As I have constructed it myself, I don't have an image with it for ...
2
votes
0answers
102 views

How to create a legend for quantitative visualization with increasing icon size?

I am trying to find a way to do a map and legend like this: I am using QGIS 2.6 Brighton. The only way was to do a pie chart but I think it's not possible to create classes. I can create circles ...
1
vote
1answer
62 views

Issues embedding map with CartoDB

We're having issues embedding a visualization into http://unitedlayer.com/fastest-growing-san-francisco-companies Previously, the embed code worked just fine. Once we pushed the map to the live site, ...
0
votes
0answers
43 views

Visualize regular grid as TMS

I have a regular grid of points with wind values with a distance between the points of approx. 300 m. I would like to visualize this and get a TMS (with TileStache) as a regular grid of arrows ...
1
vote
0answers
69 views

Polygon Visualization problem on ArcGIS Online?

Has anyone encountered Visualization problem when uploading shp (zip) file on ArcGIS Online? The polygons are all displaced and overlapped with each other! I am sharing the link with the layer of ...
1
vote
1answer
79 views

How to create multible labels non-ovelaped in CartoDB?

I'm trying to make a map poiting the cities I've visited for work, in each city I've visited more than one place. Those places are my labels, bur they are overlaped. If I choose label overlap = false, ...
2
votes
2answers
247 views

What can be used to drape an High res Image over a DEM and get high quality results?

I have a High resolution Georeferenced Orthomosaic, as well as a DEM of that area. The pixel size of both is 20 cm. The data is in Tiff format. I tried to drape the Image on the DEM in ArcScene, but ...
2
votes
1answer
166 views

UTM Coordinate Mapping Across Zones

I am building an application that requires me to plot UTM coordinates on a chart using CSV data. I am given two UTM coordinates for each record, although I would like the application to handle zone ...
2
votes
2answers
206 views

Create a layer selector when making a map at runtime for CartoDB

Using the same theory to create a search box at runtime, (such as here), I wrote this code: var l = cdb.vis.Overlay.create('layer_selector', map.viz, {}) l.show(); $('#map').append(l.render().el); ...
1
vote
1answer
232 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: ...
14
votes
3answers
857 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 ...
5
votes
1answer
199 views

Standard colour ramp for wave height visualisation

I'm working on a visualisation of weather, including wave heights. The source data is from a WaveWatch 3 model, and I'm using GeoServer 2.7 (with NetCDF and dynamic colormap extensions) to do the ...