Package com.luciad.view.labeling.algorithm

package com.luciad.view.labeling.algorithm

This package contains the core classes that can be used to create labeling algorithms.

Labeling information classes

The following classes are used to store labeling information.

• TLcdCollectedLabelInfoList
• TLcdCollectedLabeledObjectInfo
• TLcdCollectedLabelInfo
• TLcdLabelPlacement

The first three classes are used to store all labeling information needed to compute label placements. TLcdCollectedLabeledObjectInfo contains necessary information to identify a labeled object and TLcdCollectedLabelInfo contains the necessary information to identify a label. TLcdLabelPlacement contains all the information about a label placement.

Also in most of these classes extra information can be stored in the form of properties. This is done to make sure that labeling algorithm wrappers can use the same information as the wrapped labeling algorithms.

ILcdLabelConflictChecker

ILcdLabelConflictChecker provides methods to check if TLcdLabelPlacements overlap with other label placements, label obstacles or the view bounds. For more information about this interface, see ILcdLabelConflictChecker.

This package provides two implementations of ILcdLabelConflictChecker :

• TLcdLabelConflictChecker
• TLcdNoDeclutterLabelConflictChecker

ILcdCollectedLabelInfoDependencyProvider

ILcdCollectedLabelInfoDependencyProvider can be used to specify and retrieve dependencies between TLcdCollectedLabelInfo objects. For more information about this interface, see ILcdCollectedLabelInfoDependencyProvider.

Since:

10.1

Related Packages

Package	Description
com.luciad.view.labeling	This package contains classes that can be used to define and implement labeling algorithms.
com.luciad.view.labeling.algorithm.discrete	This package contains classes that can be used for discrete label placement.
com.luciad.view.labeling.util	This package contains utility classes that can be used during labeling.

Class	Description
ILcdCollectedLabelInfoDependencyProvider	Interface that makes it possible to specify dependencies between TLcdCollectedLabelInfo objects.
ILcdLabelConflictChecker	This interface defines methods to check if adding label placements causes conflicts, depending on other label placement, label obstacles and the view.
ILcdLabelConflictChecker.Conflict	This class represents a conflict.
TLcdCollectedLabeledObjectInfo	This class contains all information about a labeled object for which labels can be placed.
TLcdCollectedLabelInfo	This class contains all information about a label to be placed.
TLcdCollectedLabelInfoList	This class contains all labels to be placed.
TLcdLabelConflictChecker	This label conflict checker implements ILcdLabelConflictChecker by checking if a given label placements overlaps with other placements, label obstacles or the view bounds by calculating their intersection analytically.
TLcdLabelObstacle	An obstacle: a location where label placement should be avoided.
TLcdLabelPlacement	A label placement defines a location of a label.
TLcdNoDeclutterLabelConflictChecker	This ILcdLabelConflictChecker doesn't check if label placements overlap with other label placements.