Package org.geotools.ysld.parse
Class ListZoomContext
- Object
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- MedialZoomContext
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- ListZoomContext
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- All Implemented Interfaces:
ZoomContext
public class ListZoomContext extends MedialZoomContext
A zoom context specified by an explicit list of scale denominators.- Author:
- Kevin Smith, Boundless
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Field Summary
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Fields inherited from interface ZoomContext
HINT_ID
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Constructor Summary
Constructors Constructor Description ListZoomContext(List<Double> scales)
ListZoomContext(List<Double> scales, int initial)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description double
getMedialScale(int level)
Get a scale between the given zoom level and the nextdouble
getScaleDenominator(int level)
Find the reciprocal of the scale at a specified zoom level in this context.boolean
isInRange(int level)
Is the given level within the range for which the context has clearly defined scales.static void
validate(List<Double> scales)
Checks if the list contains a decreasing sequence of finite, positive, non-null values.-
Methods inherited from class MedialZoomContext
getRange
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Method Detail
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validate
public static void validate(List<Double> scales)
Checks if the list contains a decreasing sequence of finite, positive, non-null values.- Throws:
IllegalArgumentException
- if the values are not decreasing, positive, and finite.NullPointerException
- if any values are null.
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getScaleDenominator
public double getScaleDenominator(int level)
Description copied from interface:ZoomContext
Find the reciprocal of the scale at a specified zoom level in this context.- Parameters:
level
- The level- Returns:
- The scale denominator
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getMedialScale
public double getMedialScale(int level)
Description copied from class:MedialZoomContext
Get a scale between the given zoom level and the next- Specified by:
getMedialScale
in classMedialZoomContext
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isInRange
public boolean isInRange(int level)
Description copied from interface:ZoomContext
Is the given level within the range for which the context has clearly defined scales.
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