proland::WaterElevationLayer::WaterElevationMargin Class Reference

An ElevationMargin for rivers and lakes. More...

#include <WaterElevationLayer.h>

Inheritance diagram for proland::WaterElevationLayer::WaterElevationMargin:

List of all members.

Public Member Functions
	WaterElevationMargin (int samplesPerTile, float borderFactor)
	Creates a new WaterElevationMargin.
	~WaterElevationMargin ()
	Deletes this WaterElevationMargin.
virtual double	getMargin (double clipSize, CurvePtr p)
	Returns the margin for the given curve.
virtual double	getMargin (double clipSize, AreaPtr a)
	Returns the margin for the given area.

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Detailed Description

An ElevationMargin for rivers and lakes.

This margin takes into account the total footprint width of rivers and lakes, larger than their real widths (see ElevationGraphLayer::drawCurveAltitude).

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Constructor & Destructor Documentation

proland::WaterElevationLayer::WaterElevationMargin::WaterElevationMargin	(	int	samplesPerTile,
		float	borderFactor
	)

Creates a new WaterElevationMargin.

Parameters:

	samplesPerTile	number of pixels per elevation tile (without borders).
	borderFactor	size of the border in percentage of tile size.

proland::WaterElevationLayer::WaterElevationMargin::~WaterElevationMargin

(

)

Deletes this WaterElevationMargin.

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Member Function Documentation

virtual double proland::WaterElevationLayer::WaterElevationMargin::getMargin	(	double	clipSize,
		AreaPtr	a
	)			[virtual]

Returns the margin for the given area.

This margin will be added to the clip region in order to clip this area.

Parameters:

	clipSize	size of the clip region (width or height).
	a	an area.

Reimplemented from proland::Margin.

virtual double proland::WaterElevationLayer::WaterElevationMargin::getMargin	(	double	clipSize,
		CurvePtr	p
	)			[virtual]

Returns the margin for the given curve.

This margin will be added to the clip region in order to clip this curve.

Parameters:

	clipSize	size of the clip region (width or height).
	p	a curve.

Implements proland::Margin.