4.[WorldWind学习]4.DrawArgs对象2013-04-01

5.[WorldWind学习]5.相机对象2013-04-01 6.[WorldWind学习]6.World类2013-04-20 7.[WorldWind学习]7.RenderableObject对象2013-04-20 8.[WorldWind学习]8.Cache对象2013-04-20 9.[WorldWind学习]9.WW的屏幕坐标到经纬度坐标计算2013-04-20 10.[WorldWind学习]10.插件结构2013-04-20 11.[WorldWind学习]11.TerrainViewer插件和双线程2013-04-20 12.[WorldWind学习]12.WavingFlags和WavingFlagLayer2013-04-20 13.[WorldWind学习]13.日志类Log2013-04-24 14.[WorldWind学习]14.ConfigurationLoader类2013-05-02 15.[WorldWind学习]15.模型加载2013-05-06 16.[WorldWind学习]16.Lod技术（1）2013-05-29 17.[WorldWind学习]17.视域调度（视域体裁剪）2013-05-29 18.[转载]WorldWind实时确定、更新、初始化和渲染地形和纹理数据2013-08-13 19.[WorldWind学习]18.High-Performance Timer in C#2013-08-08 20.[WorldWind学习]19.WebDownload2013-09-22 21.[WorldWind学习]20.修改ShapeFileLayer类及托管D3D文字绘制方法2013-10-19 22.[World Wind学习]21.影像切割2013-10-23 23.[World Wind学习]22.相机高度和瓦片等级计算2013-10-29 24.[WorldWind学习]23.TerrainAccessor2014-02-20

WorldWind的WorldWindow控件包含只读属性DrawArgs

public DrawArgs DrawArgs
        {
            get { return this.drawArgs; }
        }

DrawArgs渲染参数对象，负责记录当前渲染的各个参数

WorldWindow的CurrentWorld属性赋值时也给drawArgs的CurrentWorld赋值。

View Code

 1 public World CurrentWorld
 2         {
 3             get
 4             {
 5                 return m_World;
 6             }
 7             set
 8             {
 9                 m_World = value;
10                 if(m_World != null)
11                 {
12                     MomentumCamera camera = new MomentumCamera(m_World.Position, m_World.EquatorialRadius );
13                     if(!World.Settings.CameraResetsAtStartup)
14                     {
15                         camera.SetPosition(
16                             World.Settings.CameraLatitude.Degrees,
17                             World.Settings.CameraLongitude.Degrees,
18                             World.Settings.CameraHeading.Degrees, 
19                             World.Settings.CameraAltitude,
20                             World.Settings.CameraTilt.Degrees,
21                             0
22                             );
23                     }
24                     this.drawArgs.WorldCamera = camera;
25                     
26                     this.drawArgs.CurrentWorld = value;
27                     this.layerManagerButton = new LayerManagerButton(
28                         Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), @"Data\Icons\Interface\layer-manager2.png"),
29                         m_World);
30                     
31                     this._menuBar.AddToolsMenuButton( this.layerManagerButton, 0 );
32                     this._menuBar.AddToolsMenuButton( new PositionMenuButton( Path.GetDirectoryName(Application.ExecutablePath) + "\\Data\\Icons\\Interface\\coordinates.png"), 1);
33                     this._menuBar.AddToolsMenuButton( new LatLonMenuButton( Path.GetDirectoryName(Application.ExecutablePath) + "\\Data\\Icons\\Interface\\lat-long.png", m_World), 2);
34                     this.layerManagerButton.SetPushed(World.Settings.ShowLayerManager);
35                     
36                     // TODO: Decide how to load grids
37                     m_World.RenderableObjects.Add(new Renderable.LatLongGrid(m_World));
38                 }
39             }
40         }