Java Graphics Draw Grid drawGrid(Graphics2D g, double lowerX, double upperX, int numX, double lowerY, double upperY, int numY)

Here you can find the source of drawGrid(Graphics2D g, double lowerX, double upperX, int numX, double lowerY, double upperY, int numY)

Description

draws a grid covering a rectangular area on the screen.

License

Open Source License

Parameter

Parameter Description
g the Graphics2D context
lowerX the lower boundary of the x interval
upperX the upper boundary of the x interval
numX the number of subintervals of the x interval
lowerY the lower boundary of the y interval
upperY the upper boundary of the y interval
numY the number of subintervals of the y interval

Declaration


public static void drawGrid(Graphics2D g, double lowerX, double upperX, int numX, 
        double lowerY, double upperY, int numY) 

Method Source Code

//package com.java2s;
/*/*from   w  ww.ja  v  a  2 s  . c  om*/
************************************************************************
*******************  CANADIAN ASTRONOMY DATA CENTRE  *******************
**************  CENTRE CANADIEN DE DONN?ES ASTRONOMIQUES  **************
*
*  (c) 2011.                            (c) 2011.
*  Government of Canada                 Gouvernement du Canada
*  National Research Council            Conseil national de recherches
*  Ottawa, Canada, K1A 0R6              Ottawa, Canada, K1A 0R6
*  All rights reserved                  Tous droits r?serv?s
*
*  NRC disclaims any warranties,        Le CNRC d?nie toute garantie
*  expressed, implied, or               ?nonc?e, implicite ou l?gale,
*  statutory, of any kind with          de quelque nature que ce
*  respect to the software,             soit, concernant le logiciel,
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*  arising from the use of the          accessoire ou fortuit, r?sultant
*  software.  Neither the name          de l'utilisation du logiciel. Ni
*  of the National Research             le nom du Conseil National de
*  Council of Canada nor the            Recherches du Canada ni les noms
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*  software without specific prior      de ce logiciel sans autorisation
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*                                       par ?crit.
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*  This file is part of the             Ce fichier fait partie du projet
*  OpenCADC project.                    OpenCADC.
*
*  OpenCADC is free software:           OpenCADC est un logiciel libre ;
*  you can redistribute it and/or       vous pouvez le redistribuer ou le
*  modify it under the terms of         modifier suivant les termes de
*  the GNU Affero General Public        la ?GNU Affero General Public
*  License as published by the          License?? telle que publi?e
*  Free Software Foundation,            par la Free Software Foundation
*  either version 3 of the              : soit la version 3 de cette
*  License, or (at your option)         licence, soit (? votre gr?)
*  any later version.                   toute version ult?rieure.
*
*  OpenCADC is distributed in the       OpenCADC est distribu?
*  hope that it will be useful,         dans l?espoir qu?il vous
*  but WITHOUT ANY WARRANTY;            sera utile, mais SANS AUCUNE
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*  warranty of MERCHANTABILITY          implicite de COMMERCIALISABILIT?
*  or FITNESS FOR A PARTICULAR          ni d?AD?QUATION ? UN OBJECTIF
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*  General Public License for           G?n?rale Publique GNU Affero
*  more details.                        pour plus de d?tails.
*
*  You should have received             Vous devriez avoir re?u une
*  a copy of the GNU Affero             copie de la Licence G?n?rale
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*  with OpenCADC.  If not, see          OpenCADC ; si ce n?est
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*  $Revision: 5 $
*
************************************************************************
*/

import java.awt.Graphics2D;

import java.awt.geom.GeneralPath;

public class Main {
    /**
     * draws a grid covering a rectangular area on the screen.
     *
     * @param g  the Graphics2D context
     * @param lowerX the lower boundary of the x interval
     * @param upperX the upper boundary of the x interval
     * @param numX the number of subintervals of the x interval
     * @param lowerY the lower boundary of the y interval
     * @param upperY the upper boundary of the y interval
     * @param numY the number of subintervals of the y interval
     */

    public static void drawGrid(Graphics2D g, double lowerX, double upperX, int numX, //x interval
            double lowerY, double upperY, int numY) {
        GeneralPath gp = grid(lowerX, upperX, numX, lowerY, upperY, numY);
        g.draw(gp);
    }

    /**
     * constructs a grid covering a rectangular area on the screen.
     *
     * @param lowerX the lower boundary of the x interval
     * @param upperX the upper boundary of the x interval
     * @param numX the number of subintervals of the x interval
     * @param lowerY the lower boundary of the y interval
     * @param upperY the upper boundary of the y interval
     * @param numY the number of subintervals of the y interval
     * @return the GeneralPath object representing the grid
     */

    public static GeneralPath grid(double lowerX, double upperX, int numX, //x interval
            double lowerY, double upperY, int numY) { //y interval {
        double dx = (upperX - lowerX) / numX;
        double dy = (upperY - lowerY) / numY;
        double x = lowerX;
        double y = lowerY;
        GeneralPath gp = new GeneralPath();
        for (int i = 0; i <= numX; i++) {
            gp.moveTo((float) x, (float) lowerY);
            gp.lineTo((float) x, (float) upperY);
            x += dx;
        }
        for (int j = 0; j <= numY; j++) {
            gp.moveTo((float) lowerX, (float) y);
            gp.lineTo((float) upperX, (float) y);
            y += dy;
        }
        return gp;
    }
}

Related

  1. drawBrickGrid(Color color, Graphics2D g, int size, int maxX, int maxY)
  2. drawGrid(Color color, Graphics2D g, int maxX, int maxY, int hWidth, int hSpacing, int vWidth, int vSpacing, boolean emptyIntersections)
  3. drawIntegralCoordinateGrid(Graphics2D g, Component comp, int delta)
  4. paintGrid(Graphics g, int width, int height, Color darkColor, Color brightColor)