/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2016 Open Source Geospatial Foundation (OSGeo)
* (C) 2014-2016 Boundless Spatial
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.ysld.parse;
import javax.annotation.Nullable;
/**
* Represents a mapping between zoom level and scale.
*
* @author Kevin Smith, Boundless
*
*/
public interface ZoomContext {
public static final String HINT_ID = "ZoomContext";
/**
* Find the reciprocal of the scale at a specified zoom level in this context.
*
* @param level The level
* @return The scale denominator
*/
public double getScaleDenominator(int level);
/**
* Return a scale range covering the specified zoom level but no others.
*
* @param min Minimum zoom level. Absent for open ended.
* @param max Maximum zoom level. Absent for open ended.
* @return
*/
public ScaleRange getRange(@Nullable Integer min, @Nullable Integer max);
/**
* Is the given level within the range for which the context has clearly defined scales.
*
* @param level
* @return
*/
public boolean isInRange(int level);
}