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* [Maps] 7.9 documenation updates * more cleanup * add vector tiles card to tile layers page
15 lines
743 B
Text
15 lines
743 B
Text
[role="xpack"]
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[[heatmap-layer]]
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== Heat map layer
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Heat map layers cluster point data to show locations with higher densities.
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[role="screenshot"]
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image::maps/images/heatmap_layer.png[]
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To add a heat map layer to your map, click *Add layer*, then select *Heat map*.
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The index must contain at least one field mapped as {ref}/geo-point.html[geo_point] or {ref}/geo-shape.html[geo_shape].
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NOTE: Only count, sum, unique count metric aggregations are available with the grid aggregation source and heat map layers.
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Average, min, and max are turned off because the heat map will blend nearby values.
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Blending two average values would make the cluster more prominent, even though it just might literally mean that these nearby areas are average.
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