private void buttonImport_Click(object sender, EventArgs e)
{
createTrackOptions.OverwriteTrack = this.checkBoxOverwriteTrack.Checked;
createTrackOptions.ReverseOrder = this.checkBoxReverseOrder.Checked;
createTrackOptions.TrackName = this.textBoxTrackName.Text;
createTrackOptions.SimplificationFactor = (double)this.trackBar1.Value / 100.0;
createTrackOptions.PointElement = pointGraphic;
createTrackOptions.LineElement = lineGraphic;
createTrackOptions.AnimatePath = this.checkBoxTracePath.Checked;
if (this.radioButtonLineFeature.Checked)
{
createTrackOptions.PathGeometry = lineFeature;
}
else if (this.radioButtonLineGraphic.Checked)
{
IElement temp = (IElement)lineGraphic;
createTrackOptions.PathGeometry = temp.Geometry;
}
IAGAnimationTracks tracks = AnimationExtension.AnimationTracks;
IAGAnimationContainer pContainer = tracks.AnimationObjectContainer;
AnimationUtils.CreateMapGraphicTrack(createTrackOptions, tracks, pContainer);
AnimationExtension.AnimationContentsModified();
this.Close();
}
private void frmCreateGraphicTrackOptions_Load(object sender, EventArgs e)
{
IAGAnimationTracks tracks = AnimationExtension.AnimationTracks;
int i = 1;
string recommendedTrackName = "Map Graphic track " + i;
while (CheckTrackName(tracks, recommendedTrackName))
{
i++;
recommendedTrackName = "Map Graphic track " + i;
}
this.textBoxTrackName.Text = recommendedTrackName;
this.checkBoxOverwriteTrack.Checked = false;
this.checkBoxReverseOrder.Checked = false;
this.checkBoxTracePath.Checked = false;
this.trackBar1.Minimum = 0;
this.trackBar1.Maximum = 100;
RefreshPathSourceOptions();
helpProvider1.SetHelpString(this.radioButtonLineFeature, "Use a selected line feature as the path source.");
helpProvider1.SetHelpString(this.radioButtonLineGraphic, "Use a selected line graphic as the path source.");
helpProvider1.SetHelpString(this.checkBoxOverwriteTrack, "Check to overwrite existing tracks that have the same name as specified.");
helpProvider1.SetHelpString(this.checkBoxReverseOrder, "Check to create a track that moves the graphic in a reversed direction.");
helpProvider1.SetHelpString(this.checkBoxTracePath, "Check to show the trace of the moving point graphic in the animation. By default, the trace will be shown as a red dashed line following the path of the point graphic. The symbology of the trace can be changed in the display window after you play or preview the animation once.");
helpProvider1.SetHelpString(this.trackBar1, "With a non-zero simplification factor, the line will be simplified and smoother.");
helpProvider1.SetHelpString(this.textBoxTrackName, "Type a name for the track.");
}
/// <summary>
/// 书签创建关键帧
/// </summary>
/// <param name="_pGlobe"></param>
/// <param name="_pBook3D"></param>
/// <returns></returns>
public static IAGKeyframe CreateKeyframefromBook(IGlobe _pGlobe, IBookmark3D _pBook3D)
{
IScene _pScene = _pGlobe.GlobeDisplay.Scene;
IAGAnimationContainer pAGAnimationContainer = _pScene as IAGAnimationContainer;
IAGAnimationTracks pAGAnimationTracks = _pGlobe as IAGAnimationTracks;
IAGAnimationUtils pAGAutils = new AGAnimationUtilsClass();
ESRI.ArcGIS.Animation.IAGAnimationType pAGType = new AnimationTypeGlobeCameraClass();
IAGKeyframe pGlobeKey = new GlobeCameraKeyframeClass();
pAGAutils.KeyframeFromBookmark(pAGAnimationContainer, _pBook3D as ISpatialBookmark, out pGlobeKey);
return(pGlobeKey);
}
//The following function check if a track name exists
private bool CheckTrackName(IAGAnimationTracks pTracks, string name)
{
IArray trackArray = pTracks.AGTracks;
IAGAnimationTrack pTrack;
int count = pTracks.TrackCount;
bool trackExist = false;
for (int i = 0; i < count; i++)
{
pTrack = (IAGAnimationTrack)trackArray.get_Element(i);
if (name == pTrack.Name)
{
trackExist = true;
break;
}
}
return(trackExist);
}
public static void CreateMapGraphicTrack(ICreateGraphicTrackOptions pOptions, IAGAnimationTracks tracks, IAGAnimationContainer pContainer)
{
pOptions.PathGeometry=SimplifyPath2D(pOptions.PathGeometry,pOptions.ReverseOrder,pOptions.SimplificationFactor);
IAGAnimationType animType = new AnimationTypeMapGraphic();
//remove tracks with the same name if overwrite is true
if (pOptions.OverwriteTrack == true)
{
IArray trackArray = new ArrayClass();
trackArray = tracks.get_TracksOfType(animType);
int count = trackArray.Count;
for (int i = 0; i < count; i++)
{
IAGAnimationTrack temp = (IAGAnimationTrack)trackArray.get_Element(i);
if (temp.Name == pOptions.TrackName)
tracks.RemoveTrack(temp);
}
}
//create the new track
IAGAnimationTrack animTrack = tracks.CreateTrack(animType);
IAGAnimationTrackKeyframes animTrackKeyframes = (IAGAnimationTrackKeyframes)animTrack;
animTrackKeyframes.EvenTimeStamps = false;
animTrack.Name = pOptions.TrackName;
IGeometry path = pOptions.PathGeometry;
IPointCollection pointCollection = (IPointCollection)path;
ICurve curve = (ICurve)path;
double length = curve.Length;
double accuLength = 0;
//loop through all points to create the keyframes
int pointCount = pointCollection.PointCount;
if (pointCount <= 1)
return;
for (int i = 0; i < pointCount; i++)
{
IPoint currentPoint = pointCollection.get_Point(i);
IPoint nextPoint = new PointClass();
if (i < pointCount-1)
nextPoint = pointCollection.get_Point(i + 1);
IPoint lastPoint = new PointClass();
if (i == 0)
lastPoint = currentPoint;
else
lastPoint = pointCollection.get_Point(i-1);
IAGKeyframe tempKeyframe = animTrackKeyframes.CreateKeyframe(i);
//set keyframe properties
double x;
double y;
currentPoint.QueryCoords(out x, out y);
tempKeyframe.set_PropertyValue(0, currentPoint);
tempKeyframe.Name = "Map Graphic keyframe " + i.ToString();
//set keyframe timestamp
accuLength += CalculateDistance(lastPoint, currentPoint);
double timeStamp = accuLength / length;
tempKeyframe.TimeStamp = timeStamp;
double x1;
double y1;
double angle;
if (i < pointCount - 1)
{
nextPoint.QueryCoords(out x1, out y1);
if ((y1 - y) > 0)
angle = Math.Acos((x1 - x) / Math.Sqrt((x1 - x) * (x1 - x) + (y1 - y) * (y1 - y)));
else
{
angle = 6.2832 - Math.Acos((x1 - x) / Math.Sqrt((x1 - x) * (x1 - x) + (y1 - y) * (y1 - y)));
}
tempKeyframe.set_PropertyValue(1, angle);
}
else
{
IAGKeyframe lastKeyframe = animTrackKeyframes.get_Keyframe(i-1);
tempKeyframe.set_PropertyValue(1, lastKeyframe.get_PropertyValue(1));
}
}
//attach the point element
if(pOptions.PointElement != null)
animTrack.AttachObject(pOptions.PointElement);
//attach the track extension, which contains a line element for trace
IMapGraphicTrackExtension graphicTrackExtension = new MapGraphicTrackExtension();
graphicTrackExtension.ShowTrace = pOptions.AnimatePath;
IAGAnimationTrackExtensions trackExtensions = (IAGAnimationTrackExtensions)animTrack;
trackExtensions.AddExtension(graphicTrackExtension);
}
//The following function check if a track name exists
private bool CheckTrackName(IAGAnimationTracks pTracks, string name)
{
IArray trackArray = pTracks.AGTracks;
IAGAnimationTrack pTrack;
int count = pTracks.TrackCount;
bool trackExist = false;
for (int i = 0; i < count; i++)
{
pTrack = (IAGAnimationTrack)trackArray.get_Element(i);
if (name == pTrack.Name)
{
trackExist = true;
break;
}
}
return trackExist;
}
public static void CreateMapGraphicTrack(ICreateGraphicTrackOptions pOptions, IAGAnimationTracks tracks, IAGAnimationContainer pContainer)
{
pOptions.PathGeometry = SimplifyPath2D(pOptions.PathGeometry, pOptions.ReverseOrder, pOptions.SimplificationFactor);
IAGAnimationType animType = new AnimationTypeMapGraphic();
//remove tracks with the same name if overwrite is true
if (pOptions.OverwriteTrack == true)
{
IArray trackArray = new ArrayClass();
trackArray = tracks.get_TracksOfType(animType);
int count = trackArray.Count;
for (int i = 0; i < count; i++)
{
IAGAnimationTrack temp = (IAGAnimationTrack)trackArray.get_Element(i);
if (temp.Name == pOptions.TrackName)
{
tracks.RemoveTrack(temp);
}
}
}
//create the new track
IAGAnimationTrack animTrack = tracks.CreateTrack(animType);
IAGAnimationTrackKeyframes animTrackKeyframes = (IAGAnimationTrackKeyframes)animTrack;
animTrackKeyframes.EvenTimeStamps = false;
animTrack.Name = pOptions.TrackName;
IGeometry path = pOptions.PathGeometry;
IPointCollection pointCollection = (IPointCollection)path;
ICurve curve = (ICurve)path;
double length = curve.Length;
double accuLength = 0;
//loop through all points to create the keyframes
int pointCount = pointCollection.PointCount;
if (pointCount <= 1)
{
return;
}
for (int i = 0; i < pointCount; i++)
{
IPoint currentPoint = pointCollection.get_Point(i);
IPoint nextPoint = new PointClass();
if (i < pointCount - 1)
{
nextPoint = pointCollection.get_Point(i + 1);
}
IPoint lastPoint = new PointClass();
if (i == 0)
{
lastPoint = currentPoint;
}
else
{
lastPoint = pointCollection.get_Point(i - 1);
}
IAGKeyframe tempKeyframe = animTrackKeyframes.CreateKeyframe(i);
//set keyframe properties
double x;
double y;
currentPoint.QueryCoords(out x, out y);
tempKeyframe.set_PropertyValue(0, currentPoint);
tempKeyframe.Name = "Map Graphic keyframe " + i.ToString();
//set keyframe timestamp
accuLength += CalculateDistance(lastPoint, currentPoint);
double timeStamp = accuLength / length;
tempKeyframe.TimeStamp = timeStamp;
double x1;
double y1;
double angle;
if (i < pointCount - 1)
{
nextPoint.QueryCoords(out x1, out y1);
if ((y1 - y) > 0)
{
angle = Math.Acos((x1 - x) / Math.Sqrt((x1 - x) * (x1 - x) + (y1 - y) * (y1 - y)));
}
else
{
angle = 6.2832 - Math.Acos((x1 - x) / Math.Sqrt((x1 - x) * (x1 - x) + (y1 - y) * (y1 - y)));
}
tempKeyframe.set_PropertyValue(1, angle);
}
else
{
IAGKeyframe lastKeyframe = animTrackKeyframes.get_Keyframe(i - 1);
tempKeyframe.set_PropertyValue(1, lastKeyframe.get_PropertyValue(1));
}
}
//attach the point element
if (pOptions.PointElement != null)
{
animTrack.AttachObject(pOptions.PointElement);
}
//attach the track extension, which contains a line element for trace
IMapGraphicTrackExtension graphicTrackExtension = new MapGraphicTrackExtension();
graphicTrackExtension.ShowTrace = pOptions.AnimatePath;
IAGAnimationTrackExtensions trackExtensions = (IAGAnimationTrackExtensions)animTrack;
trackExtensions.AddExtension(graphicTrackExtension);
}
