Class aRTtheme

Description

Class that enables database queries with temporal and (or) attribute restrictions. It can select the objects from the ids resulting from a spatial query.

Themes in TerraLib can have visual aspects, as colors and lines styles. These configurations are not used when an aRTtheme object is created, besause it can be used only for data processing. But there are functions to do so, for example setVisual and setVisible.

Objects from the Class

Objects can be created by calling createTheme or openTheme, from aRTlayer. openTheme is a function of class aRTdb too.

Extends

Class aRTcomponent, directly.

Methods

getBox

Returns the bounding box.

getData

Returns all attributes and geometry of the theme.

getVisual

Returns the visual configuration of the theme.

openQuerier:

Opens a query over the theme.

setVisible

Changes the visibility of the theme (visible or not).

setVisual

Sets the visual of the theme.

Author(s)

Marcos Aurelio Carrero, Pedro Ribeiro de Andrade

See Also

See aRTtheme-METHOD for a method of this class or CLASSNAME-class for links to other classes.