Again: imgObj2java.awt.image

Benedikt Rothe umn-ms at HYDROTEC.DE
Sun Feb 19 23:54:41 PST 2006


Hi Oliver

Do you mean this? 

package de.hydrotec.test.WebMapGUITest;

import java.io.ByteArrayInputStream;
import java.io.FileOutputStream;
import javax.imageio.ImageIO;
import edu.umn.gis.mapscript.mapObj;

public class WorkWithImageTest {
    public static void main(String args[]) throws java.io.IOException {
        System.loadLibrary("mapscript");
        mapObj  map = new mapObj("test.map");
        edu.umn.gis.mapscript.imageObj ms_img = map.drawQuery();
        // Output in Mapserver-style
        ms_img.save("ms.png",map); 
        java.io.InputStream is = new 
ByteArrayInputStream(ms_img.getBytes());
        java.awt.image.BufferedImage java_img = ImageIO.read(is);
        // Output in Java-Style
        ImageIO.write(java_img,"png",new FileOutputStream("java.png")); 
    }
}

Benedikt

PS: Using Mapserver for a desktop-app sounds intersting.I'm curious to 
know
which advantages over JUMP/uDig (or something like this) you 
see/hope/expect? 

UMN MapServer Users List <MAPSERVER-USERS at LISTS.UMN.EDU> schrieb am 
17.02.2006 17:56:32:

> Hi Fernando and thank you very much for your answer,
> 
> I need that for an abstraction layer on mapserver to develop desktop 
> applications. Do you know what imageObj.getByte() returns? There is a 
lack of 
> documentation for JavaMapserver-API, yet, isn't it?
> 
> Best regards,
> Oliver
> 
> 
> Am Freitag, 17. Februar 2006 17:31 schrieb Fernando Simon:
> > Hi Oliver,
> >     I already used JavaMapscript but never needed to convert the
> > imageobj to awt.image.
> >     I don't believe that it's possible to do directly, so the best way
> > is save the image and after use the awt.image.
> >     Best regards.
> >
> > 
------------------------------------------------------------------------
> > Fernando Simon
> > Mapserver and Oracle Spatial developer
> > G10 - Laboratorio de Computacao Aplicada - Brazil
> > http://www.univali.br/g10 - UNIVALI/CTTMAR
> > 
------------------------------------------------------------------------
> >
> > Oliver Lichte (by way of Oliver Lichte <lichte at icbm.de>) wrote:
> > > Hello.
> > >
> > > Was this question too trivial or too difficult??? Unfortunately, 
no-one
> > > answered untit now, so I'll try it again:
> > >
> > > I'd like to convert imageObj to java.awt.image. Is it possible to 
get
> > > direct pixel access via Java mapserver-API or do I have always to 
create
> > > a temporary file to share the image?
> > >
> > > What is the content of the byte-array returned by method getByte()?
> > >
> > > Regards,
> > > Oliver
> 
> -- 
> Junior Research Group IMPULSE 
> ICBM * Carl-v.-Ossietzky University of Oldenburg
> PO-Box 2503 * 26111 Oldenburg - Germany - http://www.icbm.de/impulse
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