Display of Symbols using mapscript

Tamas Szekeres szekerest at GMAIL.COM
Wed Sep 6 14:20:45 EDT 2006


Hi,

http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1835

Best Regards,

Tamas



2006/9/6, Matthew Cross1 <MattCross at uk.ibm.com>:
>
> Hello there,
>
> My first time on the list and I wonder if someone could answer this
> question.
>
> We have a java (v1.4.2) mapscript application built on MS4W 1.5.1 with
> Mapserver 4.8.3. We are trying to display symbolised points. The application
> populates a mapObj and then draws an output file in PNG format. Our problem
> is that the PNG image does not show the selected symbol but simply displays
> a coloured pixel. However, if we load the map file which was created by a
> .save call into a browser then the symbol is displayed correctly.
>
> Our code is as follows:
>
>         mapObj map = new mapObj(null);
>         map.setStatus(mapscriptConstants.MS_ON);
>         map.setName("JustDrawMe");
>         map.setProjection("init=epsg:27700");
>         map.setSymbolSet("/PATH/symLib.sym");
>         map.setFontSet("/PATH/fonts.txt");
>
>         //Create layer
>         layerObj layer2 = new layerObj(map);
>         layer2.setName("TEST_POINT");
>         layer2.setType(MS_LAYER_TYPE.MS_LAYER_POINT);
>         layer2.setStatus(mapscriptConstants.MS_ON);
>         layer2.setTransform(0);
>
>         //Add Point
>         shapeObj shapePt = new shapeObj(0);
>         lineObj line2 = new lineObj();
>         line2.add(new pointObj(150,150,0));
>         shapePt.add(line2);
>         shapePt.setType(1);
>         layer2.addFeature(shapePt);
>
>         classObj mapclass2 = new classObj(layer2);
>         mapclass2.setName("TEST CLASS");
>         styleObj style2 = new styleObj(mapclass2);
>         style2.setOutlinecolor(new colorObj(0,0,255,2));
>         style2.setColor(new colorObj(0,0,255,2));
>         style2.setWidth(2);
>         style2.setSize(20);
>         style2.setAngle(0);
>         style2.setAntialias(0);
>         style2.setSymbolname("CrossGeometryV");
>
>         map.setSize(600, 600);
>         map.setExtent(0, 0, 300, 300);
>         map.setTransparent(mapscriptConstants.MS_OFF);
>         map.selectOutputFormat("PNG");
>
>         /* Saves map file  */
>         map.save(OUT_PATH + MAP_FILE_OUT);
>
>         /* Saves image */
>         map.draw().save(OUT_PATH + IMAGE_OUT,map);
>
>
> Hope someone can help this beginner
>
>
> Matt Cross



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