com.luciad.view.gxy.controller

LuciadLightspeedInterface ILcdGXYScaleLevelProvider

All Known Implementing Classes:

TLcdGXYRasterBasedScaleLevelProvider

public interface ILcdGXYScaleLevelProvider

Retrieves scale levels for a point in the view.

This interface is used by TLcdGXYZoomWheelController to snap to the provided scale levels when using control-zoom.

Since:

2013.1.31

See Also:

ILcdGXYView.getScale()

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	ILcdGXYScaleLevelProvider.ScaleLevel A scale level object.

Method Summary

Modifier and Type	Method and Description
ILcdGXYScaleLevelProvider.ScaleLevel[]	getScaleLevels(int aX, int aY, ILcdGXYView aView) Returns the scale levels for the given view point.

Method Detail

getScaleLevels

ILcdGXYScaleLevelProvider.ScaleLevel[] getScaleLevels(int aX,
                                                      int aY,
                                                      ILcdGXYView aView)

Returns the scale levels for the given view point. The scales should be in order, from smallest to largest. The scale levels can be based on the given view coordinate, for example the ideal scales for a raster under this view position.

Parameters:

aX - an x view coordinate

aY - an y view coordinate

aView - the view

Returns:

the scale levels for the given view point.