Cluster | Urbi Pro | 2GIS Documentation
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Cluster

The Cluster visualization method is useful when there are too many points on the map. In this case, it is more convenient to work with their groups — clusters. The size and color of the cluster depend on the points counts covered by it.

When you zoom in on the map, large clusters first break up into smaller ones, and then into separate points. When you zoom out on the map, small clusters are grouped into larger ones.

Overview

Cluster

To choose a visualization method:

  1. Go to the Dashboards tab.
  2. Open the required dashboard.
  3. To open a scene, use the arrows Left arrow and Right arrow. If there is only one scene in the dashboard, it opens automatically when you open the dashboard.
  4. To open the layer, click Layers icon and select the required layer.
  5. In General settings, select the Cluster visualization method.
  6. Set the remaining visualization parameters if necessary.

The data is visualized on the map.

Parameters

For the Cluster visualization method, the following parameters are available:

  • Radius:

    • Cluster size: value in pixels from 1 to 250, based on which a point is included in the cluster. If there is a point at the specified distance from the cluster center, it is included in the cluster.
    • Radius range: radius of the element in pixels from 1 to 100.

  • Color: selecting the color of the data display.

    • Color basis: attribute based on which the elements on the map and in the legend are colored according to the color scale. The available values ​​depend on the data in the sample. You can select only numeric attributes.

    • Color scale: set of prepared color samples.

    • Invert: select to invert the selected color scale.

    • Steps: number of steps in the color scale from 1 to 10.

    • Legend: configuring of data ranges in the legend. Ranges are calculated automatically depending on a type of scale (for Logarithmic, Linear, and Exponential types). You can also customize ranges manually by entering the required range limits or changing the order and number of ranges (Adjustable type). The specified upper (right) limit is not included in the range. The maximum number of ranges is 10.
      To change the order of ranges, hold down Move icon next to the required range and drag it. To add a range, click Plus icon. To delete a range, click Trash icon.

    • Color aggregation type: color aggregation method for one visualization element: Sum or Mean.

    • Type of scale: distribution type used to calculate data ranges in the legend:

      • Logarithmic - displays a wide range of data. Recommended to use if values ​​differ by several orders of magnitude.
      • Linear - displays values ​​of the same order.
      • Exponential - displays data that changes quickly. Recommended to use if you need to highlight small values and ignore large values.
      • Adjustable - manual configuring of ranges. In all ranges except the last one, the specified upper (right) limit is not included in the range.

    • Opacity: setting an opacity of the elements on the map.

  • Outline: enable to display an outline around the elements.

    • Outline color: selecting an outline color on the color palette or in HEX format.
    • Stroke width: stroke width in pixels from 1 to 25.

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