Meteoinfo生成色斑图问题求助

hisofter

数据：

                               
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出图效果：

                               
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从图片看明显是错误的。折腾了很久了没有发现什么原因，Debug确认插值结果是对的，就是出图不行，感觉和legendScheme有关，但很多函数看不懂啊，文档也比较缺乏。请大佬帮忙看下吧。



我的代码

1. VectorLayer clipLayer = MapDataManage.readMapFile_ShapeFile(shpFile);
   
2. 
   
3. 
   
4.         //初始化图层和画布
   
5.         var mapLayout = new MapLayout();
   
6.         var mapView = MeteoInfoHelper.createMapView(mapLayout,this.mapconfig,clipLayer);
   
7. 
   
8. 
   
9. 
   
10.         //读入站点数据
    
11.         var stationData =  MeteoInfoHelper.getStationData(req.getDS());
    
12.         stationData.projInfo = clipLayer.getProjInfo();
    
13. 
    
14. 
    
15.         //设定插值参数
    
16.         GridDataSetting gridDataSetting = new GridDataSetting();
    
17.         gridDataSetting.dataExtent = clipLayer.getExtent();
    
18.         gridDataSetting.xNum = 20;// 格点点数
    
19.         gridDataSetting.yNum =30;// 格点点数
    
20.         //插值
    
21.         InterpolationSetting interSet = new InterpolationSetting();
    
22.         interSet.setGridDataSetting(gridDataSetting);
    
23.         interSet.setInterpolationMethod(InterpolationMethods.KRIGING);
    
24.         interSet.setMinPointNum(1);
    
25.         GridData gridData = GeoMathUtil.interpolateData(stationData,interSet);
    
26. 
    
27. 
    
28.         double[] minMax=MeteoInfoHelper.getMaxAndMin(req.getDS());
    
29.         var legendScheme = new LegendScheme(ShapeTypes.POLYGON);
    
30.         legendScheme.importFromXMLFile(lgsFile);
    
31.         legendScheme.setHasNoData(false);
    
32.         legendScheme.setMinValue(0);
    
33.         //插值生成图层
    
34.         VectorLayer contourLayer = DrawMeteoData.createShadedLayer(gridData, legendScheme, "Tem", "Value",
    
35.                 mapconfig.getSmooth()>0);
    
36.         //裁切图片
    
37.         VectorLayer dataLayer = contourLayer.clip(clipLayer);
    
38.         mapView.addLayer(dataLayer);
    
39. 
    
40.         var staLayout=MeteoInfoHelper.LoadStation(req.getDS(),0);
    
41.         mapView.addLayer(staLayout);
    
42. 
    
43.         if(req.getTitle()!=null){
    
44.             mapLayout.addText(req.getTitle(), 200, 35, "宋体", 35);
    
45.         }
    
46.         var aLegend = mapLayout.addLegend(800, 307);
    
47.         aLegend.setLegendStyle(LegendStyles.NORMAL);
    
48.         aLegend.setFont(new Font("宋体",Font.PLAIN,20));
    
49.         //= ;
    
50.         aLegend.setHeight(370);
    
51.         aLegend.setWidth(100);
    
52. 
    
53. 
    
54. 
    
55.         //生成剪切图层
    
56.         PolygonBreak aPGB2 = (PolygonBreak)clipLayer.getLegendScheme().getLegendBreak(0);//LegendBreaks[0];
    
57.         aPGB2.setDrawFill(false);// = false;
    
58.         aPGB2.setDrawOutline(true);// = true;
    
59.         aPGB2.setOutlineColor(Color.darkGray);// = Color.Gray;
    
60.         aPGB2.setOutlineSize(2);
    
61.         dataLayer.setMaskout(true);//= true;
    
62. 
    
63.         //mapFrame.addLayer(dataLayer);
    
64.         //mapFrame.moveLayer(dataLayer,0);
    
65. 
    
66.         mapLayout.getActiveMapFrame().addLayer(clipLayer);
    
67.         aLegend.setTitle("能见度(km)") ;
    
68. 
    
69.         toImageStream(response, mapLayout);

复制代码

Lgs文件内容

1. <?xml version="1.0" encoding="utf-8"?>
   
2. <LegendScheme FieldName="Value" LegendType="UniqueValue"
   
3.               ShapeType="Polygon" BreakNum="5"
   
4.               HasNoData="False" MinValue="0" MaxValue="999" UNDEF="-9999">
   
5.   <Breaks>
   
6.     <Break Caption="0～0.2" StartValue="0" EndValue="0.2" Color="#63220A" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
   
7.     <Break Caption="0.2～0.5" StartValue="0.2" EndValue="0.5" Color="#7B1EEA" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
   
8.     <Break Caption="0.5～1" StartValue="0.5" EndValue="1" Color="#D01F05" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
   
9.     <Break Caption="1～2" StartValue="1" EndValue="2" Color="#D35C07" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
   
10.     <Break Caption="2～3" StartValue="2" EndValue="3" Color="#E9B155" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
    
11.         <Break Caption="3～5" StartValue="3" EndValue="5" Color="#FCFB24" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
    
12.          <Break Caption="5～10" StartValue="5" EndValue="10" Color="#AEF546" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
    
13.           <Break Caption="10～20" StartValue="10" EndValue="20" Color="#AFDBFE" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
    
14.           <Break Caption="20～30" StartValue="20" EndValue="30" Color="#D1EDFF" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
    
15.           <Break Caption="30以上" StartValue="30" EndValue="999" Color="#FFFFFF" DrawShape="True" OutlineColor="Gray" DrawOutline="False" DrawFill="True" OutlineSize="1" />
    
16.   </Breaks>
    
17. </LegendScheme>

复制代码

cmy

可以先用  MeteoInfo   制作一下试试，   interSet.setMinPointNum(1);   估计这句话影响了差值。

hisofter

cmy 发表于 2021-12-15 11:09
可以先用  MeteoInfo   制作一下试试，   interSet.setMinPointNum(1);   估计这句话影响了差值。

尝试了一下注释掉interSet.setMinPointNum(1);，以及interSet.setMinPointNum(3); 没有任何变化