//鼠标在场景中停留两秒中显示坡度坡向信息
private void timer_tick(Object sender, EventArgs e)
{
if (m_slope != null)
{
if (m_lastPoint3D != m_point3D)
{
this.m_sceneControl.Scene.TrackingLayer.Clear();
double slopeValue = m_slope.GetSlopeValue(m_point3D);
double slopeDirection = m_slope.GetSlopeDirectionValue(m_point3D);
TextStyle textstyle = new TextStyle();
textstyle.IsSizeFixed = true;
textstyle.FontName = "微软雅黑";
textstyle.ForeColor = Color.Black;
textstyle.FontScale = 2;
textstyle.FontHeight = 3;
TextPart3D textPart3D = new TextPart3D();
textPart3D.Text = String.Format("Longitude: {0}\nLatitude:{1}\nAltitude: {2}\nSlopeValue: {3}\nSlopeDirection: {4}", m_point3D.X, m_point3D.Y, m_point3D.Z, slopeValue, slopeDirection);
textPart3D.AnchorPoint = m_point3D;
GeoText3D geoText3D = new GeoText3D(textPart3D);
geoText3D.TextStyle = textstyle;
GeoStyle3D style3D = new GeoStyle3D();
style3D.AltitudeMode = AltitudeMode.Absolute;
style3D.BottomAltitude = 10;
geoText3D.Style3D = style3D;
this.m_sceneControl.Scene.TrackingLayer.Add(geoText3D, "Text");
m_lastPoint3D = m_point3D;
}
}
}
