[WorldWind学习]15.模型加载

http://blog.csdn.net/jk276993857/article/details/5951738验证其可行性。只是模型太小，很难找到。在ConfigurationLoader.cs和ModelFeature类中设置断点监视：

 1 public override void Initialize(DrawArgs drawArgs)

 2         {

 3             if(!IsVisible(drawArgs.WorldCamera))

 4                 return;

 5 

 6             try

 7             {

 8                 if(meshFileName.EndsWith(".x"))

 9                     LoadDirectXMesh(drawArgs);//设置断点，反复改变球，最终找到。注意大概缩放到的经纬度(116.4E,39.9N)

10                 else if(meshFileName.EndsWith(".dae")||meshFileName.EndsWith(".xml"))

11                     LoadColladaMesh(drawArgs);

12                 if (mesh == null)

13                     throw new InvalidMeshException();

14                 

15                 vertExaggeration = World.Settings.VerticalExaggeration;

16                 if (isElevationRelative2Ground==true)

17                     currentElevation = World.TerrainAccessor.GetElevationAt(Latitude, Longitude);

18                 

19 

20                 isInitialized = true;

21             }

22             catch(Exception caught)

23             {

24                 Utility.Log.Write( caught );

25                 errorMsg = "Failed to read mesh from " + meshFileName;

26             }

27         }

同时修改模型的缩放因子ScaleFactor：

 1 <?xml version="1.0" encoding="utf-8"?>

 2 <LayerSet Name="Clark Test" ShowOnlyOneLayer="false" ShowAtStartup="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="LayerSet.xsd">

 3   <ModelFeature ShowAtStartup="true">

 4     <Name>Tiny1</Name>

 5     <DistanceAboveSurface>560.0</DistanceAboveSurface>

 6     <Latitude>

 7       <Value>39.93</Value>

 8     </Latitude>

 9     <Longitude>

10       <Value>116.400002</Value>

11     </Longitude>

12     <ScaleFactor>100</ScaleFactor>

13     <MeshFilePath>C:\tiny.x</MeshFilePath>

14     <Orientation>

15       <RotationX>0.0</RotationX>

16       <RotationY>90.0</RotationY>

17       <RotationZ>90.0</RotationZ>

18     </Orientation>

19     <MaxViewRange>10000.0</MaxViewRange>

20     <MinViewRange>10</MinViewRange>

21   </ModelFeature>

22 

23   <ModelFeature ShowAtStartup="true">

24     <Name>Tiny2</Name>

25     <DistanceAboveSurface>160.0</DistanceAboveSurface>

26     <Latitude>

27       <Value>39.93</Value>

28     </Latitude>

29     <Longitude>

30       <Value>116.410002</Value>

31     </Longitude>

32     <ScaleFactor>2</ScaleFactor>

33     <MeshFilePath>Data\Model\tiny.x</MeshFilePath>

34     <Orientation>

35       <RotationX>0.0</RotationX>

36       <RotationY>-90.0</RotationY>

37       <RotationZ>90.0</RotationZ>

38     </Orientation>

39     <MaxViewRange>10000.0</MaxViewRange>

40     <MinViewRange>10</MinViewRange>

41   </ModelFeature>

42 

43  <LineFeature ShowAtStartup="true">

44     <Name>Sample Line</Name>

45     <ExtrudeHeight>20000</ExtrudeHeight>

46     <ExtrudeUpwards>false</ExtrudeUpwards>

47     <DistanceAboveSurface>50000</DistanceAboveSurface>

48     <MinimumDisplayAltitude>10</MinimumDisplayAltitude>

49     <MaximumDisplayAltitude>5000000</MaximumDisplayAltitude>

50     <LineString>

51       <posList>-120,35,10000 -119,36,20000 -120,38,100000 -122,38,60000</posList>

52     </LineString>

53     <FeatureColor>

54       <Red>255</Red>

55       <Green>100</Green>

56       <Blue>0</Blue>

57     </FeatureColor>

58     <Outline>true</Outline>

59     <OutlineColor>

60       <Red>100</Red>

61       <Green>100</Green>

62       <Blue>100</Blue>

63     </OutlineColor>

64     <Opacity>150</Opacity>

65   </LineFeature>  

66 </LayerSet>