Dynamic Aggregation Map

Instructions for use

Dynamic Aggregation Map represents Feature information in a map using aggregation, that is, aggregations are drawn on the location of the feature. It is mainly used to express the distribution of education and medical resources in a region, and to provide data reference for relevant departments to plan resources rationally.

When Map Scale zooms in to only one feature within the aggregation radius, the aggregation effect will no longer change if you continue to zoom in on the scale.

When the Map Scale is reduced to the point where the aggregation radius includes all the aggregated features, the aggregation effect does not change as the scale continues to be reduced.

Applicable data: Point Dataset.

Application scenario

  • Distribution of educational resources: In economically developed and densely populated areas, educational resources are also very intensive. When we use the conventional Map Cartography, the data may be covered and the number of educational resources cannot be directly obtained from the map. At this time, it is necessary to dynamically express the distribution of educational resources in the region from a quantitative point of view under different scales through Dynamic Aggregation Map.

Function entrance

  • Thematic Maps tab-> Aggregate Maps group-> Dynamic Aggregation Map.
  • Layer Manager-> Layer Context Menu-> Create Thematic Map..-> Aggregate Graph-> Dynamic Aggregation Map.

Parameter Description

The Parameter Settings of the Dynamic Aggregation Map is in the Layer Properties panel, and the detailed description of the parameters is as follows:

  • Refer to the Set Layer Common Properties for the settings of the Display Control group and the Change Dataset group.
  • The Parameter Settings group is described as follows:
    • Aggregation Radius: Used to control the variation of aggregation quantity and size. The default setting is 20.
    • Aggregation Field: The field used to set aggregation. The Type must be numeric. You do not need to set the Aggregation Field when you only want to represent the aggregation of point objects.
    • Display Precision: Used to set the display precision of the aggregation label. When aggregate radius is selected and Aggregate is set, a decimal point will appear in the label content, and the number of decimal points can be displayed in the display precision setting label.
    • Aggregate: After setting the aggregation radius, you need to set the Calculator Method of the aggregation radius through Aggregate. Five Calculator Methods are provided here: average value, number, maximum value, minimum value, and sum.
    • Show Lable: used to set the style of the label. Font, font size, slant angle, Text Color, outline color, shadow color, and Font Effects can be set. Where Font Effects includes bold, strikethrough, right italic, underline, shadow, Background Transparency, outline, and outline pixel size.
    • Marker Style: It is used to set the marker style of the aggregation symbol. The type of the point symbol can be selected through the Marker Symbol Selector. It also supports the setting of the maximum Marker Size and the minimum Marker Size.

    • The following is the Dynamic Aggregation Map effect of educational resources in a city. Please refer to the Dynamic Aggregation Map application examples for detailed production steps.