view gnv-artifacts/src/main/java/de/intevation/gnv/raster/AbstractProducer.java @ 1061:13bea93a070a

Do not call the endOfLife method of the current state before advancing to a next state, because this would remove elements from cache that have been inserted just before - it would be impossible to make use of a cache in that case. gnv-artifacts/trunk@1144 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 01 Jun 2010 16:59:15 +0000
parents feae2f9d6c6f
children f953c9a559d8
line wrap: on
line source
package de.intevation.gnv.raster;

import de.intevation.gnv.raster.Vectorizer.RingsHandler;

/**
 * Abstract base class for producing multi polygons and
 * multi line strings. This base class stores a bounding box
 * of world coordinates which helps to transform the index
 * spaced egde data into real world coordinates.
 *
 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
 */
public abstract class AbstractProducer
implements            RingsHandler
{
    /**
     * min x coord of the world.
     */
    protected double minX;

    /**
     * min y coord of the world.
     */
    protected double minY;

    /**
     * max x coord of the world.
     */
    protected double maxX;

    /**
     * max y coord of the world.
     */
    protected double maxY;

    /**
     * Default constructor.
     */
    public AbstractProducer() {
    }

    /**
     * Constructor to create an Abstract producer with a
     * given world bounding box.
     * @param minX Min x coord of the world.
     * @param minY Min y coord of the world.
     * @param maxX Max x coord of the world.
     * @param maxY Max y coord of the world.
     */
    public AbstractProducer(
        double minX, double minY,
        double maxX, double maxY
    ) {
        this.minX = minX;
        this.minY = minY;
        this.maxX = maxX;
        this.maxY = maxY;
    }
}
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