//如果kml中已经保存运动轨迹，可以选择已保存好的运动轨迹
private void cb_Track_SelectedIndexChanged(object sender, EventArgs e)
{
if (cb_Track.SelectedIndex == 0)
{
return;
}
this.m_sceneControl.Scene.TrackingLayer.Clear();
String trackName = this.cb_Track.SelectedItem as String;
Feature3Ds features = m_layerKML.Features;
Feature3D[] feature3Ds = features.FindFeature(trackName, Feature3DSearchOption.AllFeatures);
if (feature3Ds.Length > 0)
{
Feature3D feature3D = feature3Ds[0];
GeoPlacemark geoPlacemark = feature3D.Geometry as GeoPlacemark;
m_geoLine3D = geoPlacemark.Geometry as GeoLine3D;
if (m_geoLine3D != null && m_geoLine3D.PartCount > 0)
{
if (m_nodeAnimation != null)
{
m_nodeAnimation.SetTrack(m_geoLine3D);
m_nodeAnimation.TimePostition = 0;
}
this.btn_AddToKML.Enabled = false;
}
}
}
//指定模型，并设置其节点动画属性
private void cb_Model_SelectedIndexChanged(object sender, EventArgs e)
{
//如果之前的模型正在运动，则停止运动
if (m_nodeAnimation != null && m_nodeAnimation.IsEnabled == true)
{
m_nodeAnimation.IsEnabled = false;
}
//获取当前模型，并设置节点动画
String featureName = this.cb_Model.SelectedItem as String;
Feature3Ds features = m_layerKML.Features;
Feature3D[] feature3Ds = features.FindFeature(featureName, Feature3DSearchOption.AllFeatures);
if (feature3Ds.Length > 0)
{
Feature3D feature3D = feature3Ds[0];
GeoPlacemark geoPlacemark = feature3D.Geometry as GeoPlacemark;
m_geoModel = geoPlacemark.Geometry as GeoModel;
if (m_geoModel != null)
{
m_nodeAnimation = m_geoModel.NodeAnimation;
//位置变更事件
m_nodeAnimation.TimePositionChanged -= new TimePositionChangedEventHandler(m_nodeAnimationTimePositionChanged);
m_nodeAnimation.TimePositionChanged += new TimePositionChangedEventHandler(m_nodeAnimationTimePositionChanged);
if (m_geoLine3D != null && m_geoLine3D.PartCount > 0)
{
m_nodeAnimation.SetTrack(m_geoLine3D);
m_nodeAnimation.TimePostition = 0;
}
}
}
}