Questions tagged [heat-map]

For questions about heat maps, where a heat map is a graphical representation of geographic data, generally in the form of a coloured raster. Heat maps are used to highlight regions of higher than average data density.

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2
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0answers
925 views

Plotting heatmap/locations in GeoServer & OpenLayers map from Lat/Lon data of PostGIS table [closed]

I am using Geoserver, Openlayers, PostGIS for Geospatial web implemenation. I have an Indian map shape files for States, Districts, Talukas. I am able to generate a map with states, districts, ...
0
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1answer
88 views

CartoDB - Non-animated heatmap, but won't let me layer under

I have a simple heatmap layer that is not animated. I want to move a choropleth layer above that heatmap layer, but Carto will not let me, as it thinks my Heatmap layer is animated. Is there any way ...
1
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0answers
29 views

Heatmap of a large polyline dataset in QGIS

To summarize: I'm having difficulties with creating a heatmap from a large (90021-item) polyline dataset in QGIS 3.10.1. First, it is worth noting that this question is somewhat similar to Doing ...
0
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1answer
167 views

QGIS does not export heatmap SLD-files

At the moment I am creating a webmap with PostGIS and GeoServer. I want to style the data using SLD-files, because my data keeps updating. I have made SLD-files for Points and Polygons and that ...
3
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0answers
36 views

Delineating zones based on number of polygons that are in overlay

I am working in urbanism and I have a number of polygons that represent perimeters where certain "programs of revaluation" have been carried out. However, as can be seen on the map below, over time, ...
3
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2answers
1k views

Rendering data on top of Google Maps

I have an interpolated temperature data samples that covers a map evenly. The data is in the form of (lat,lon,temp). I want to render that data on top of google maps. I tried google heat maps and the ...
1
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1answer
48 views

Is it possible to create heatmap from layers of polygon geometry type?

I'm new to GIS and my question is whether I can create a heatmap from a layer with polygon (multipolygon) geometry. As far as I know, it is only possible to create a heatmap from layers with point and ...
2
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1answer
437 views

Folium - plugins.HeatMapWithTime no longer produces an output

I have been creating Heat Maps with a Time dimension using both test data and my own datasets using the Folium libraries in Python. I am using Python 3.5 to do this, and the results have been good. I ...
0
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1answer
2k 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: But I want to show the value on the heat map like this crime page (with two options on: "Crime ...
1
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1answer
87 views

Creating a Heatmap of Delivery Probability in QGIS3

Im using QGIS 3.4.2 to create a heatmap to plot the source place where a network message is generated, in a vehicular network. I separated the messages in two groups, one in each layer: delivered and ...
3
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1answer
84 views

Changing degrees to meters

I'm using QGIS 3.4.9. When I try to create a heatmap the only radius option is degrees. Can you tell me how to change this to meters?
2
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1answer
93 views

Plotting density map of points?

I have some points and I would like to plot the density map of them. I have tried like this: plt.figure() xedges = np.linspace(540000, 550000, 20) yedges = np.linspace(5200000, 5500000, 20) H, ...
1
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1answer
150 views

Reclassifying Raster (Heatmap) from Value to Percent using QGIS?

I have a point layer with several points "belonging" to different years by attribute. For all points of each year I created a heatmap. Now I would like to define the core area of each heatmap. ...
1
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1answer
203 views

How to Create Gradient map from GRID file in QGIS-3 Above?

I have a very important Question. I have a GRD file which can be opened in SURFER or QGIS or GIS. The problem is that how can I customize and make my grid file perfect? Here I have two photos which ...
0
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1answer
521 views

Heat Maps in Google Earth Engine

I have a set of points(lat, lon and other attributes) stored as an Asset in Google Earth Engine. I import this asset as a Feature Collection and visualize the points over Satellite Imagery in Google ...
2
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1answer
47 views

Making heat map with joined layer using QGIS

I need to make a heat map with the number of cases by neighborhood. I have: a polygon shapefile with the neighborhoods, and a CSV file containing the name of the neighborhood and the number of ...
2
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2answers
460 views

Find average density value within a polygon in ArcMap

I've created a point density heat map for a city intended to show areas where there is more or less access to a certain type of public school. It would be useful to be able to identify which local ...
1
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0answers
37 views

Creating interpolation maps in QGIS 3 [duplicate]

I'm trying to create an interpolation map visualizing the global distribution of genetic markers - basically replicating the attached map. Can it be done in QGIS 3.8 (Zanzibar)? I installed QGIS 3 ...
3
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2answers
317 views

Collecting Thermal Map Data?

I am curious about making a thermal map to display where the hot spots and where the cool spots in a community are. Obviously the roads will be hot and the shaded areas with trees will be cool but ...
1
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1answer
191 views

Making heat map transparent in QGIS?

I am still new to QGIS. I have seen several tutorials but they seem to be concerned with earlier versions. The problem I have is that my heat map obscured any map beneath. I can see why this is, the ...
2
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0answers
52 views

Make biodiversity heatmap in QGIS out of polygons and not points

I would like to make a biodiversity heatmap in QGIS out of polygons and not points. I have a shape file made up of many overlapping polygons. I know how to make a heatmap with a set of points by using ...
1
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0answers
49 views

Multiple Spatial Point Patterns, create “average” heatmap

I am using R's spatstat package to analyze spatial patterns of objects across plant leaves. Let's say I have 10 leaves, each with corresponding X,Y coordinates of the objects and a window in the ...
1
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1answer
385 views

Plotting a heat map onto background in python using kde?

I have a geodataframe with points within the united states. Each point has a geometry attribute as well as a value. I would like to plot a heat map based on these values on top the map of the united ...
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1answer
75 views

Heat map with possibility of shading any country or province in the world?

My boss is collecting data which measures where visitors to our website are located. He wants me to make a choropleth map (I believe that's what it's called) in which countries and provinces are ...
3
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1answer
7k views

Displaying relative concentration (heatmap) of point features in ArcMap?

I'm pretty new to GIS. I have a large dataset of point features, all within a arbitrary geographical area (in this case, the greater San Francisco Bay Area). The point features have no other ...
3
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1answer
138 views

Mapping/visualising data with Long Tail?

I work with a dataset that gathers stats from all across a city. Each datapoint is of interest and worth visualising to our users, but there are a few parts of the city that significantly deviate from ...
3
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1answer
64 views

How to add a time component in a heatmap?

I have a point file extracted from an AIS network. 1 year is about 900 million points. Each point has a timestamp. I want to make a heatmap for a longer period of time, but I want the heatmap to take ...
0
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0answers
89 views

QGIS 3.8 heatmap error

I had assumed it was an error due to lack of space but no matter where we try to save it we get the folllowing error: Traceback (most recent call last): File "C:/PROGRA~1/QGIS3~1.8/apps/qgis/./python/...
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0answers
57 views

Kernel Density Estimate on point data in degrees (scikit-learn)

I am estimating point density, where I am having point coordinates in degrees, I need a raster(over the extent of these points) which provides a density estimation on each cell. I have tried on R but ...
8
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3answers
17k views

R : How to build heatmap with the leaflet package

I read a post about interactive maps with R using the leaflet package. In this article, the author createD a heat map like this: X=cbind(lng,lat) kde2d <- bkde2D(X, bandwidth=c(bw.ucv(X[,1]),bw....
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0answers
32 views

Created heatmaps are not displayed

I created a few heatmaps based on 2 different shapefiles( point layers). Then I joined the data from the 2 shp files, the joined file looks perfectly fine. I created a view heatmaps based on the new ...
1
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1answer
73 views

Creating heat map animation based on point-shapefile with data attribute in ArcGIS [closed]

I want to create an animation of forest fires, using the NASA' MODIS data for the last 11 years. Their shapefile has acquisition data attribute — and it goes day by day all those years. I've already ...
3
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2answers
780 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 ...
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0answers
24 views

Heat Map- how to add colour division and legend [closed]

I would like to ask if anyone knows how to colour the certain counties of England + legend about the colour's meaning. Here is my code which will give me the chosen counties of England on a map. But I ...
1
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1answer
83 views

Getting AttributeError when exporting Heatmap using qgis2web? [closed]

I want to make a heatmap layer on my webgis. using these options but when i'm trying to export it using qgis2web i always get this error. 2019-06-21T10:15:53 WARNING Traceback (most recent ...
3
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2answers
4k views

Using polygons to create heatmaps in QGIS?

I've been fiddling around with heatmaps on QGIS for a few days, but came across a small obstacle on my way. I have a dataset comprised of point data, corresponding to objects inside a 1 sq meter grid. ...
1
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0answers
17 views

Creating heatmap for spatial overlap of features (or buffers of features) across different layers using ArcGIS Desktop? [duplicate]

I have several layers of features. For example: Layer1 -> set of polygon features Layer2 -> set of point features (with buffer around each feature) Layer3 -> set of polyline features (with ...
0
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1answer
41 views

Creating\rendering a heatmap not showing up

I am having a problem rendering a heatmap. I am sure the heatmap is created but it doesnt display when I replace or add a renderer. var TF = new FeatureLayer({ url:"https://services3.arcgis.com/...
3
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2answers
2k views

Could not create destination layer

I am using QGIS 3.0.3 to make a heatmap using processing toolbox, kernel density estimation. The input I am using: I have generated centroids from polygons using Vector --> geometry --> centroids ...
0
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0answers
107 views

Calculating point density of distinct points using QGIS?

I want to calculate the density of a point layer with QGIS, but these points are dependent on one attribute. (I have different kind of points) I do not only want the normal heatmap; I need the ...
2
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0answers
38 views

Surface Temperature + Air Temperature in Landsat image comparisons

Quick question about relating Landsat Surface Temperature to locally recorded Air Temperature on a given day: Are differences in local air temperature captured by the Landsat ARD ST imaging process? ...
0
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0answers
38 views

QGIS Heat Map output not correct

Fairly new to QGIS here. I'm having trouble creating a heat map in QGIS3 from a set of points. I've followed what others have done online (e.g.: https://www.youtube.com/watch?v=o9Gqrr5cYrY) but in my ...
30
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9answers
16k views

Creating polyline-based “heatmap” from GPS tracks?

This winter I am planning to track my downhill skiing/snowboarding using a GPS. Most of my riding will occur at the same resort. I would like to be able to create a sort of "heatmap" that shows the ...
0
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0answers
240 views

Creating Leaflet Heatmap using LinsString GeoJSON

I need to create heatmap based on length property from a LineString GeoJSON file. I have tried to use Leaflet.heat plug-in, but this tool accepts points not lines. here is my code: $.getJSON("data/...
0
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0answers
72 views

Toggling off/on heatlayer using geojson file

I created a heatlayer using a geojson file. However, I am having trouble with toggling it on and off with a checkbox. Since the toggleHeatlayer function is within another function, it becomes ...
0
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0answers
282 views

R : How to build heat-map based on ratios with leaflet package

I'm just starting to try out some things in the GIS arena and perhaps this question is a concept mistake. I've read the post R : How to build heatmap with the leaflet package and the fantastic answer ...
3
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2answers
769 views

Create line heatmap with QGIS

I have loaded my bike tours as .gpx files into QGIS. It already looks quite nice but I was wondering if it might be possible to create something similar to the strava heatmap with tools of QGIS. I ...
2
votes
2answers
1k views

Heatmap Processing Exception in QGIS 3.2

I am working through training exercises with the Alaska training data using QGIS 3.2 on Windows 8. To create a Heatmap, I load the airports shapefile. I cannot find the Heatmap plugin using the ...
2
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0answers
95 views

QGIS 3.44 heatmap to contour file

I am trying to convert a point file, currently displayed into a contour file. The methods that I have tried, all expect a raster file as an input, but my source file is a vector file points, i.e. I ...
1
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1answer
188 views

MapServer Kerneldensity empty map

I'm trying generate a heatmap from my PostGIS table, but my map is empty... Here is my config file: LAYER NAME feature_heatmap TYPE raster CONNECTIONTYPE kerneldensity CONNECTION "point_data"...