A heat map is a graphical representation of data where the individual values contained in a matrix are represented as colors

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38 views

Creating heatmap or choropleth map from Zip Code data? [closed]

We have a dataset with Zip Codes and number of sales of each zip code . we need to generate a heatmap or coropleth map . I tried importing the dataset with those results and filtered using sales but ...
1
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2answers
115 views

Heatmaps: right terms (isopleth vs choropleth, etc) and how to implement a value-based one that looks good?

NOTE: My original question was about interpolation methods, but I've found that I was actually asking the wrong question. Interpolation methods with Heatmaps and IDW are the least of my problems right ...
0
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0answers
16 views

How to create an percentage based SLD heatmap?

I am trying to create a generic heatmap sld based on percentages of the maximum value. Right now the legend is something like 0-456, 456-892,892-1109, etc. But I want this SLD to be generic so it is ...
1
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3answers
53 views

What's the parameters of heatmap formula on QGIS?

I want to calculate the values by hand to know which parameters effect the result in the image, but i couldn't able to do that because i didn't understand it. I tried with 500 mt and 1000 mt radius ...
0
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1answer
46 views

Merge shapefiles heatmap

I have to merge few shapefiles into one and create a heat map out of it in qgis. I'm a first user of the QGIS, I tried to do it there: vector-management tools-merge files into one, but it kept to make ...
2
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1answer
28 views

QGIS Heatmap values change when imported into ArcMap?

I am creating a heatmap layer from QGIS and importing the TIFF into ArcMap. When I import the file into ArcMap I notice that values are different. For example the max value in QGIS is 8.92454, but ...
1
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0answers
33 views

How to convert poly-line contour feature class into heat map displaying heights [closed]

I'm looking for a way to be able to convert contour data (as lines) into a heat map that would display the data warmest at the highest points and coolest at the lowest. I have access to QGIS, ArcMap ...
2
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0answers
37 views

Heatmap on globe - distortion problems

I want to display a heatmap (png) on a globe in an android app. The heatmap is generated programmatically. The heatmap consists of colored circles. I upload the png to geosserver and display it as ...
1
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0answers
23 views

How do I fix my SLD tile heat map when it comes up as dots?

I am currently working on an SLD heat map on GeoServer that uses tiles.There is a point in each tile with the data. From far away, the heat map looks normal. But up close it just becomes little ...
0
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0answers
30 views

How to customize heatmap color on pre decided constraint values?

I am working on heatmap and situation is i have to change the color of heat map marker on the basis of some constraints and the color should change according to those basic constraints values. My ...
0
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0answers
17 views

stop leaflet.heat from redrawing on zoom

I'm working with leaflet.heat, which redraws the heat map based on the zoom level. Best I can tell, it resamples the points within the extent of the map and redraws based on the intensity of the ...
2
votes
2answers
152 views

Heatmap using Kernel density estimation

I have been trying to generate heatmap using kernel density estimation from python console in QGIS. This is command i'm using: processing.runandload("saga:kerneldensityestimation", ...
1
vote
1answer
88 views

Heatmap failing in QGIS (2.8.2-Wien)

I am super new to QGIS so I may be doing something really dumb, but it doesn't seem to work to create a heatmap in QGIS Desktop 2.8.2 (just downloaded this yesterday so I think it is the most current ...
1
vote
1answer
137 views

Python heatmap from data

Is it possible to make something like this using python ? How should i best structure my data in order to make this map and what should i use to draw it. Code is not necessarily required. I just need ...
2
votes
0answers
38 views

Interpreting results of QGIS intepolation and Heat map from point shapefile

I have taken a step interpolation and heat map of the data point shapefile (building Centroid) with QGIS ver-2.8.1, as shown below. My question are: What is the difference of the two methods? How ...
2
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0answers
39 views

Server-side map generation from postGIS database

I have loaded some OSM data into a postGIS database, using imposm. Now using this data base, I computed a value associated to every point of the map (could be anything, real-estate average price or ...
1
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0answers
55 views

Torque heatmap on CartoDB with time control

I am interested in create a Torque Heatmap in which you can see the events occured every year in one step, for twelve years in total. Every event has a aggregation or ponderation value (they are the ...
3
votes
0answers
34 views

Output formats for QGIS Heatmap plugin not appearing in drop-drown in Ubuntu

I've been trying to use the heatmap plugin on QGIS (2.8.2) on Ubuntu(14.04) but the drop down for the output formats doesn't get populated. Selecting the drop-down allows me to press OK on the plugin ...
0
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1answer
38 views

Error loading heatmap layer using cartodb.js

I'm trying to load a heatmap layer using cartodb.js, but it is failing whether I use createVis or the manual way. Using createVis: cartodb.createVis('mapDIV', 'https://PATH/viz.json'); Building a ...
0
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0answers
53 views

Visualizing overlapping polygons by occurence

I work in a library providing geospatial services and I have a patron with about 60 surveys with perceived accent regions in Mexico. Individuals drew on maps where they think people speak with ...
0
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1answer
78 views

Heat Map not showing up QGIS [duplicate]

I'm fairly new to QGIS and I'm trying to use Heatmap. I should be doing every thing correct. But when I click OK for it to generate a heatmap, there is no Heatmap at all (nothing changes). For the ...
0
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0answers
39 views

Coordinates heat map results are not the same as the shapefile [duplicate]

I have done with a heat map shapefiles as shown below. But the results of heat map coordinates are not the same as the coordinates of shapefiles. Is there a procedure that is wrong?
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0answers
92 views

Display heat map using Json on Cesium with CartoDB

I want to create a heat map by using Json data on Cesium. And I want to use a CartoDB layer filled with Jquery's way of getting Json. And display the data on the Cesium 3D Globe. Most of work is done ...
1
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0answers
29 views

Heat Map with species distribution [closed]

what I am trying to do is to generate a heat map depicting the spatial distribution of certain species found in a lake, in association with their sex. For example, species_a+male or species_b+female ...
0
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0answers
130 views

How to make the value showing on a leaflet heatmap like this one?

I'm attempting to use leaftlet.js, and heatmap.js (github.com/pa7/heatmap.js/) following this example: www.patrick-wied.at/static/heatmapjs/example-heatmap-leaflet.html But I want to show the value ...
1
vote
1answer
78 views

How do I read and modify heat map value classification on QGIS?

I am trying to create a heat map on human encroachment using the heatmap plugin of QGIS 2.2. I have no problems creating a good looking raster file using a 2 km radius but I can't find my way around ...
0
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0answers
96 views

Density Heat Maps using R

I recently have been reading about mapping GIS information in R. I have 2 data sets from work. Without going into too much detail, the first data set is a list of failures with Geo Codes, the second ...
1
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0answers
40 views

Gradient fill based on scores (similar to elevation)

I'm rather new to using GIS (QGIS, specifically). I've mapped out a cohort of around 550 patients across Long Island, New York based on their full address by using MMQGIS plugin. This data is ...
2
votes
1answer
97 views

Draw heatmap only over water layer using Leaflet?

I need to draw a heatmap, but only over water because I want to represent water heat level. I am using Leaflet. How can I do it? I found an only-water layer, maybe it would be usefult for developing ...
1
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0answers
26 views

QGIS heatmap misplaced over dataset [duplicate]

First of all I'm a complete noob when it comes to QGIS so maybe thats the reason why I cannot find anything on this on google (or is this due to the 2.8.1 compatebility issue?). My issue is that when ...
1
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0answers
26 views

Problem with QGIS Heatmap Plugin [duplicate]

I am experiencing some issues with the Heatmap Plugin (0.2) on QGIS 2.8.1, and I wanted to double-check if I am doing something wrong, or if there is some sort of bug lying around. As a background, I ...
1
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0answers
37 views

heatmap dislocated when generated [duplicate]

QGIS 2.8.1 Does anyone have the answer to why a generated heatmap appears without coordinates and therefore is not on top of the vectorlayer that it was generated from? I checked the CRS setting but ...
0
votes
1answer
74 views

Heatmap is upside down

I have a point file saved as a shapefile, now I want to produce a heatmap of the values. However the heatmap is projected upside down. I suspect my y coordinates are inverted or negative but I do not ...
2
votes
1answer
94 views

Sublayers or Multiple Visualizations for CartoDB

I'm trying to learn a bit of CartoDB by creating a heatmap using crime data available on the city's website where the raw number of crimes are displayed for each police district. So far I've been ...
1
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1answer
97 views

Trouble with heatmap plugin in 2.6.1

When using the heatmap plugin, I am getting some insanely large numbers for the cell size field when setting the radius to 5000. I know that rows and columns are related to cell size x and cell size ...
1
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0answers
42 views

ESRI JavaScript HeatmapRenderer class and Print widget

I’m working on an application using ESRI’s HeatMapRenderer class from the JavaScript API. The issue that I am running into is that the Print widget fails if the heat map renderer layer is on the map. ...
0
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0answers
66 views

OpenLayers3 Heatmap: Which are the availables geotypes to load?

I'm developing a heatmap and I'm trying some of the availables libraries. Leaflet GoogleMaps OpenLayers I'm using a geoJson file with several amounts of points. Since Leaflet allow me to assing a ...
2
votes
1answer
45 views

How can I get temperature data for each Countries?

I need maximum and minimum temperature data of each countries. I searched a lot but could not find the values. Could you give links if it is possible?
2
votes
1answer
60 views

How to visualize car park occupancy over time?

I am using QGIS Brighton 2.6.1. I have a csv table with the exact entrance datetime and exact exit datetime of every car in an specific parking. Example of table: Nº DateTimeEntrance ...
0
votes
0answers
188 views

Error while passing geojson data to leaflet heatmap

I am using following set of code for converting geoJson data into Heatmap format and passing to L.heatLayer extends of leaflet. While using this function to fetch the data...I get this following ...
1
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2answers
148 views

Intensity map based on a value of the each record

If I have geolocalized records with a simple true/false value for a field with title "Do you like flowers?" How can I draw a map that shows me in which areas people like flowers more than in which ...
2
votes
1answer
271 views

Geographic Heatmaps with Concentric Circles by Distance

I'm looking to generate a geographic heatmap (using 'ggmap') that overlays some dimension (to start, housing prices) over the lat/lon near a city center. Then I want to create circles of equi-distant ...
3
votes
2answers
74 views

Create map(s) to help determine site selection

I have the task of creating a map in which the objective would be to help determine a site for a conference. I have the following data: Addresses of possible conference attendees (I have already ...
0
votes
1answer
66 views

Create polygons from point dataset, where each polygon contains 3 points from the dataset

I'm using qgis Brighton I have a dataset of 1500 points. I want to create polygons, where each polygon contains n=3 points from the dataset. The aim of this is to have clusters of 3 points, which ...
0
votes
0answers
63 views

Enabling all layers by default using Leaflet?

I am using leaflet maps to compare heat layer and marker layer. I've an option to add multiple marker and heat layers dynamically. For me Heat layers are enabled by default as on when user adds new ...
5
votes
1answer
203 views

How to create accurate heat maps and hot spot maps in QGIS? [closed]

I am mapping 5 heritage sites using DGPS point data. Each site has 100s, and in two cases 1000s, of points representing various attributes. I want to show the density of attributes and then ...
0
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0answers
100 views

Hot Spot Analysis

I'm using ArcMap 10.2- I've got a series of coordinate points, each with an associated value (level of income) that I would like to turn into a heatmap. I've projected the points onto a map, run the ...
3
votes
1answer
83 views

QGIS using the heatmapplugin from the console

I have to make a lot of heatmaps from csv's. Therefore I'm making a python script to run in the console. So far I can load csv's and save them as shapefiles. To get to the heatmapplugin I'm using the ...
1
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1answer
167 views

Ordering Cartodb torque visualization over Google Maps heatmap layer

I am attempting to create a map with two layers: a CartoDB Torque visualization on top and a Google heatmap layer underneath. So far I have only been able to get them to draw in the opposite order ...
0
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1answer
72 views

How to create heatmaps with small radius?

I am trying to visualize a set of pois on a map with the qgis heatmap plugin. It works great with a big radius but the layer is invisible for a small one (around 100 meters). I really need a small ...