proland::RoadElevationLayer::RoadElevationMargin Class Reference

An ElevationMargin for roads. More...

#include <RoadElevationLayer.h>

Inheritance diagram for proland::RoadElevationLayer::RoadElevationMargin:

List of all members.

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

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Detailed Description

An ElevationMargin for roads.

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

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Constructor & Destructor Documentation

proland::RoadElevationLayer::RoadElevationMargin::RoadElevationMargin	(	int	samplesPerTile,
		float	borderFactor
	)

Creates a new RoadElevationMargin.

Parameters:

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

proland::RoadElevationLayer::RoadElevationMargin::~RoadElevationMargin

(

)

Deletes this RoadElevationMargin.

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Member Function Documentation

virtual double proland::RoadElevationLayer::RoadElevationMargin::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.