# Uses of Package
org.apache.sis.portrayal

Packages that use org.apache.sis.portrayal
Package
Description
org.apache.sis.gui.coverage
Widgets showing `GridCoverage` images or sample values.
org.apache.sis.gui.map
Widgets for showing a map in a JavaFX application.
org.apache.sis.portrayal
Symbology and map representations, together with a rendering engine for display.

- Classes in org.apache.sis.portrayal used by org.apache.sis.gui.coverage
  Class
  Description
  Canvas
  Common abstraction for implementations that manage the display and user manipulation of spatial graphic elements.
  Observable
  Parent class of all objects for which it is possible to register listeners.
  PlanarCanvas
  A canvas for two-dimensional display device using a Cartesian coordinate system.
- Classes in org.apache.sis.portrayal used by org.apache.sis.gui.map
  Class
  Description
  Canvas
  Common abstraction for implementations that manage the display and user manipulation of spatial graphic elements.
  CanvasFollower
  A listener of displacements in a source canvas which can reproduce the same displacement in a target canvas.
  Observable
  Parent class of all objects for which it is possible to register listeners.
  PlanarCanvas
  A canvas for two-dimensional display device using a Cartesian coordinate system.
  RenderException
  Thrown when a map rendering process failed.
  TransformChangeEvent
  A change in the "objective to display" transform that `Canvas` uses for rendering data.
- Classes in org.apache.sis.portrayal used by org.apache.sis.portrayal
  Class
  Description
  Canvas
  Common abstraction for implementations that manage the display and user manipulation of spatial graphic elements.
  Observable
  Parent class of all objects for which it is possible to register listeners.
  PlanarCanvas
  A canvas for two-dimensional display device using a Cartesian coordinate system.
  RenderException
  Thrown when a map rendering process failed.
  TransformChangeEvent
  A change in the "objective to display" transform that `Canvas` uses for rendering data.
  TransformChangeEvent.Reason
  The reason why the "objective to display" transform changed.