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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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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 ...
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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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81 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 ...
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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 ...
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214 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/...
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63 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 ...
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224 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 ...
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Preparing data to show mostly high values area on heat map using ArcGIS Server?

My client maintain a database of building information, one of them are age of building. They would like to visualized the areas with more old buildings, here is a mock up of such data (we convert the ...
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148 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 ...
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83 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 ...
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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 ...
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530 views

Heatmap processed on the whole layer / dataset

How can I process the geoserver heatmap on my whole database rather than on the displayed part of it? What I want is to keep the same color for each place, everytime. Here is an illustration of what ...
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71 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 ...