Java MeteoInfo解析与绘图代码教程详解

MeteoDataInfo meteoDataInfo = new MeteoDataInfo();

         meteoDataInfo.openMICAPSData( "D:\\解析数据\\cldas\\cldas\\TEM\\20081000.000" );

         GridData grid = meteoDataInfo.getGridData();

         //读取地图A

         VectorLayer scmap = MapDataManage.readMapFile_ShapeFile( "C:\\Users\\Administrator\\Downloads\\好例子网_全国省、县界线shp格式矢量图（精确到县区域）\\全国省、县界线shp格式矢量图（精确到县区域）\\sichuan.shp" );

         //读取地图B

         VectorLayer qgmap = MapDataManage.readMapFile_ShapeFile( "E:\\shp\\四川\\四川省(3)_市界.shp" );

         //描述地图边界线

         PolygonBreak pb = (PolygonBreak) qgmap.getLegendScheme().getLegendBreak( 0 );

         //是否设置填充

         pb.setDrawFill( false );

         //设置轮廓颜色

         pb.setOutlineColor(Color.black);

         //读取色阶

         LegendScheme als = LgsUtil.readFromLgs( "D:\\apache-tomcat-8.0.50\\alt色阶\\TEM.lgs" );

         //绘制图层

         VectorLayer layer = DrawMeteoData.createShadedLayer(grid,als, "" , "" , true );

         //创建视图

         MapView view = new MapView();

         layer = layer.clip(scmap);

         //叠加图层

         view.addLayer(layer);

         view.addLayer(qgmap);

         //视图设置

         MapLayout layout = new MapLayout();

         //去除图形边框

         layout.getActiveMapFrame().setDrawNeatLine( true );

         //抗锯齿

         layout.getActiveMapFrame().setMapView(view);

         view.setAntiAlias( true );

         layout.setAntiAlias( true );

         //根据视图计算视图的宽高

         Extent extent = view.getExtent();

         int size = 800 ;

         Rectangle rectangle = new Rectangle(size, ( int ) (size * 1D / extent.getWidth() * extent.getHeight()));

         //设置地图区域大小和外边距

         int width = rectangle.width;

         int left = 50 ;

         int height = rectangle.height;

         int right = 140 ;

         int top = 50 ;

         int bottom = 50 ;

         //设置页面边界

         layout.setPageBounds( new Rectangle( 0 , 0 , width + left + right, height + top + bottom));

         //获取地图框

         MapFrame frame = layout.getActiveMapFrame();

         //设置布局边界

         frame.setLayoutBounds( new Rectangle(left, top, width, height));

         //绘制网格刻度线

         frame.setDrawGridLine( true );

         //设置网格间隔值

         frame.setGridXDelt( 0.5 );

         frame.setGridYDelt( 0.5 );

         //设置图例

         Rectangle bounds = layout.getActiveMapFrame().getLayoutBounds();

         LayoutLegend legend = layout.addLegend(bounds.x + bounds.width + 15 , 0 );

         legend.setLegendStyle(LegendStyles.Normal);

         legend.setTop(bounds.y + (bounds.height - legend.getHeight()) / 2 );

         legend.setLegendLayer(layer);

         //导出

         layout.exportToPicture(PathUtil.getDeskPath()+ "/1.png" );

标题设定-放到设定好视图大小的后面

Rectangle bounds = layout.getActiveMapFrame().getLayoutBounds();

layout.addText(title, bounds.x + bounds.width / 2 , y, 18 );