fixedzoomincommand.java

esri的ArcGIS Server超级学习模板程序（for java）

package com.esri.solutions.jitk.commands;

import com.esri.adf.web.data.WebMap;
import com.esri.adf.web.data.geometry.WebExtent;

/**
 * The zoom in command.
 * 
 */
public class FixedZoomInCommand extends FixedZoomAction {
	/**
	 * Does a fixed zoom in
	 */
	public void zoomFixedIn() {
		WebMap webMap = getWebContext().getWebMap();

		// compute new scaled extent and refresh
		WebExtent newExtent = getScaledExtent(webMap.getCurrentExtent(),
				getZoomFactor());
		webMap.setCurrentExtent(newExtent);
		getWebContext().refresh();
	}

}