IlvCartesianProjector Class Reference

Class for projection of data expressed in a Cartesian system of coordinates. More...

#include <ilviews/charts/common.h>

Inheritance diagram for IlvCartesianProjector:

List of all members.

Public Types
enum	Orientation {   IlvXRightYTop, IlvXRightYBottom, IlvXTopYRight, IlvXBottomYRight,   IlvXLeftYTop, IlvXLeftYBottom, IlvXTopYLeft, IlvXBottomYLeft }
	This enumeration type defines the axis orientation of a Cartesian system of coordinates. More...
Public Member Functions
	IlvCartesianProjector (Orientation orientation=IlvXRightYTop)
	Constructor.
Orientation	getOrientation () const
	Returns the orientation of the Cartesian system of coordinates.
void	setOrientation (Orientation orientation)
	Sets the orientation of the Cartesian system of coordinates.

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Detailed Description

Class for projection of data expressed in a Cartesian system of coordinates.

Library: ilvcharts

This class is a subclass of IlvAbstractProjector that handles the projection into screen coordinates for data expressed in a Cartesian system of coordinates (x, y). The scales representing such coordinates are rectangular and are displayed orthogonally. The x values are represented by the abscissa scale and the y values are represented by one or several ordinate scales. The orientation of the scales depends on the orientation of the Cartesian system of coordinates. This orientation is returned by the IlvCartesianProjector::getOrientation method.

See also:

IlvAbstractProjector.

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Member Enumeration Documentation

enum IlvCartesianProjector::Orientation

This enumeration type defines the axis orientation of a Cartesian system of coordinates.

Enumerator:

IlvXRightYTop	The X axis is horizontal and oriented from left to right, the Y axis is vertical and oriented from bottom to top.
IlvXRightYBottom	The X axis is horizontal and oriented from left to right, the Y axis is vertical and oriented from top to bottom.
IlvXTopYRight	The X axis is vertical and oriented from bottom to top, the Y axis is horizontal and oriented from left to right.
IlvXBottomYRight	The X axis is vertical and oriented from top to bottom, the Y axis is horizontal and oriented from left to right.
IlvXLeftYTop	The X axis is horizontal and oriented from right to left, the Y axis is vertical and oriented from bottom to top.
IlvXLeftYBottom	The X axis is horizontal and oriented from right to left, the Y axis is vertical and oriented from top to bottom.
IlvXTopYLeft	The X axis is vertical and oriented from bottom to top, the Y axis is horizontal and oriented from right to left.
IlvXBottomYLeft	The X axis is vertical and oriented from top to bottom, the Y axis is horizontal and oriented from right to left.

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Constructor & Destructor Documentation

IlvCartesianProjector::IlvCartesianProjector

(

Orientation

orientation = IlvXRightYTop

)

Constructor.

Initializes a new IlvCartesianProjector object.

Parameters:

orientation

The orientation of the Cartesian system of coordinates.

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Member Function Documentation

Orientation IlvCartesianProjector::getOrientation

(

)

const

Returns the orientation of the Cartesian system of coordinates.

Returns:

The orientation of the Cartesian system of coordinates.

See also:

setOrientation.

void IlvCartesianProjector::setOrientation

(

Orientation

orientation

)

Sets the orientation of the Cartesian system of coordinates.

Parameters:

orientation

The new orientation of the Cartesian system of coordinates.