Vektor Cluster Groups

Vector Cluster Groups allow multiple point features to be grouped together, optimizing the visualization of large datasets. Isolated points remain unchanged, while overlapping or closely positioned points are combined into a cluster. Clicking on a cluster displays a list of the original point features it contains.

To use clustering, at least one Vector Cluster Group must be created. In the Handling in map section, it can be configured whether a Vector Cluster Group is used for vector layers and which specific group is applied.

A Vector Cluster Group can be configured with the following settings:

General Settings

Option	Description
Name (ID)	Unique name (identifier) of the created Vector Cluster Group.
Distance	The minimum pixel distance at which nearby points are grouped into a cluster.

Option

Description

Name (ID)

Unique name (identifier) of the created Vector Cluster Group.

Distance

The minimum pixel distance at which nearby points are grouped into a cluster.

Handling in map

Option	Description
Z-Index	The z-index determines the display order. If one layer has a higher value relative to another, it overlaps them in the display.

Option

Description

Z-Index

The z-index determines the display order. If one layer has a higher value relative to another, it overlaps them in the display.

Vector properties

Option	Descripton
Altitude mode	Defines the height mode used. 'Drape on terrain' places 2D data on the terrain. 'Relative to terrain' interprets heights as values above the terrain. 'Absolute' is the 3D elevation above the reference ellipsoid.
Height above ground	A vertical offset to the terrain. Can be used with altitude mode 'Relative to terrain'.
Ground level	Ground height level of the objects.
Scale by distance	Gets or sets near and far scaling properties of objects based on the object’s distance from the camera. Interpolation of the objects scale between the provided distances. Outside of these ranges the object’s scale remains clamped to the nearest bound. If unchecked, no scaling is applied.
Eye offset	Gets or sets the 3D Cartesian offset applied to objects in eye coordinates. Eye coordinates is a left-handed coordinate system, where x points towards the viewer’s right, y points up, and z points into the screen. Eye coordinates use the same scale as world coordinates, which is typically meters. An eye offset is commonly used to arrange multiple billboards or objects at the same position, for example to arrange a billboard above its corresponding 3D model.
Allow picking	Defines if the features are pickable, for example for enabling Feature Info.

Option

Descripton

Altitude mode

Defines the height mode used. 'Drape on terrain' places 2D data on the terrain. 'Relative to terrain' interprets heights as values above the terrain. 'Absolute' is the 3D elevation above the reference ellipsoid.

Height above ground

A vertical offset to the terrain. Can be used with altitude mode 'Relative to terrain'.

Ground level

Ground height level of the objects.

Scale by distance

Gets or sets near and far scaling properties of objects based on the object’s distance from the camera. Interpolation of the objects scale between the provided distances. Outside of these ranges the object’s scale remains clamped to the nearest bound. If unchecked, no scaling is applied.

Eye offset

Gets or sets the 3D Cartesian offset applied to objects in eye coordinates. Eye coordinates is a left-handed coordinate system, where x points towards the viewer’s right, y points up, and z points into the screen. Eye coordinates use the same scale as world coordinates, which is typically meters. An eye offset is commonly used to arrange multiple billboards or objects at the same position, for example to arrange a billboard above its corresponding 3D model.

Allow picking

Defines if the features are pickable, for example for enabling Feature Info.

Display

By default, clusters scale up when selected. This behavior can be modified using the setting 'Highlight style'. The Default Style and Selection Style options can only be adjusted if the corresponding checkbox is enabled.

Option	Description
Template	Allows customization of the cluster’s appearance, such as color or font style.
Breaks	Defines how many points are displayed before a cluster switches to the 'Number+' format.
Zero scale offset	Specifies at which step the cluster icons start to scale up. A value of 0 causes scaling to begin at the second step.
Scale factor	Defines how much the cluster icons increase in size as the number of points within the cluster grows.

Option

Description

Template

Allows customization of the cluster’s appearance, such as color or font style.

Breaks

Defines how many points are displayed before a cluster switches to the 'Number+' format.

Zero scale offset

Specifies at which step the cluster icons start to scale up. A value of 0 causes scaling to begin at the second step.

Scale factor

Defines how much the cluster icons increase in size as the number of points within the cluster grows.