VortexAnimatSim/OsgLinearPath.cpp

#include "StdAfx.h"
#include "VsMovableItem.h"
#include "VsBody.h"
#include "VsJoint.h"
#include "VsMotorizedJoint.h"
#include "VsRigidBody.h"
#include "VsOrganism.h"
#include "VsStructure.h"
#include "VsClassFactory.h"
#include "VsSimulator.h"

//#include "VsSimulationRecorder.h"
#include "VsMouseSpring.h"
#include "VsLight.h"
#include "VsCameraManipulator.h"
#include "VsDragger.h"
#include "MeshMinVertexDistanceVisitor.h"

#include "OsgLinearPath.h"
#include "VsSimulationWindow.h"
#include "VsScriptedSimulationWindow.h"

namespace VortexAnimatSim
{
        namespace Visualization
        {

OsgLinearPath::OsgLinearPath()
:   osg::Referenced(),   
        AnimatBase(),   
    m_ControlPoints(),
    m_CurveIsValid(false),
    m_Interpolated(0.0, 0.0, 0.0),
        m_lpTrackBody(NULL),
        m_bVisible(true),
        m_bVisibleInSim(false),
        m_bShowWaypoints(false),
        m_dblStartTime(0),
        m_dblEndTime(1),
        m_lpParentWindow(NULL),
        m_lpCurrentWaypoint(NULL),
        m_iCurrentWaypointIdx(-1)
{
}

OsgLinearPath::~OsgLinearPath()
{
        //Do not delete
        m_lpTrackBody = NULL;
        m_lpCurrentWaypoint = NULL;
        RemoveCurve();
}

bool OsgLinearPath::AddControlPoint(const osg::Vec3d point, 
                                  const double time)
{
    bool ret = false;

    osg::ref_ptr<ControlPoint> p = new ControlPoint(
        time, point, osg::Vec3d(0.0, 0.0, 0.0));

    ret = AddControlPoint(p.get());

    return ret;
}

bool OsgLinearPath::AddControlPoint(ControlPoint *p)
{
    bool ret = false;

    assert(p != NULL);

    if ((p != NULL) && (p->m_T >= 0.0)) {

        bool valid = true;
        unsigned int afterI = -1;

        for (unsigned int i = 0; i < m_ControlPoints.size(); ++i) {
            if (p->m_T < m_ControlPoints[i]->m_T) {
                // insert point will be previous index
                afterI = i - 1;
                break;
            } else if (p->m_T == m_ControlPoints[i]->m_T) {
                // invalid time
                valid = false;
                break;
            }

            // update insert point
            afterI = i;
        }

        if (valid) {

            // index to insert waypoint into
            unsigned int index = afterI + 1;

            // insert the new waypoint into the list
            PointListType::iterator iter = m_ControlPoints.begin() + index;
            m_ControlPoints.insert(iter, p);
                        ret = true;
        }
    }

    // note curve as invalid
    InvalidateCurve();

    return ret;
}

void OsgLinearPath::ClearAllControlPoints()
{
    // clear the list of control points
    m_ControlPoints.clear();

    // note curve as invalid
    InvalidateCurve();
}

void OsgLinearPath::InvalidateCurve()
{
    // curve is not valid
    m_CurveIsValid = false;
}

bool OsgLinearPath::BuildCurve()
{
        int iCount = m_ControlPoints.size();
        for(int iIdx=0; iIdx<iCount; iIdx++)
        {
                ControlPoint *lpP0 = m_ControlPoints[iIdx].get();

                //If there are more points then calculate vel and unit vector to next one.
                if(iIdx<(iCount-1))
                {
                        ControlPoint *lpP1 = m_ControlPoints[iIdx+1].get();
                        
                        lpP0->m_vDist = lpP1->m_Pos - lpP0->m_Pos;
                        lpP0->m_dblDist = sqrt(pow(lpP0->m_vDist.x(), 2.0) + pow(lpP0->m_vDist.y(), 2.0) + pow(lpP0->m_vDist.z(), 2.0));
                        lpP0->m_V = lpP0->m_vDist / (lpP1->m_T - lpP0->m_T);
                        lpP0->m_Uv = lpP0->m_vDist;
                        lpP0->m_Uv.normalize();
                        lpP0->m_Tnext = lpP1->m_T;
                }
                //Otherwise set them to 0
                else
                {
                        lpP0->m_vDist.set(0, 0, 0);
                        lpP0->m_dblDist = 0;
                        lpP0->m_V.set(0, 0, 0);
                        lpP0->m_Uv.set(0, 0, 0);
                        lpP0->m_Tnext = lpP0->m_T;
                }
        }

    // mark curve as valid ready for interpolation
    m_CurveIsValid = true;
    return true;
}

osg::Vec3d OsgLinearPath::GetPositionAtTime(const double t)
{
        Interpolate(t);
        return GetInterpPosition();
}

void OsgLinearPath::FindCurrentWaypoint(const double t)
{
        int iCount = m_ControlPoints.size();
        if(m_lpCurrentWaypoint && (t > m_lpCurrentWaypoint->m_Tnext) && (m_iCurrentWaypointIdx < (iCount-1)) )
        {
                m_iCurrentWaypointIdx++;
                m_lpCurrentWaypoint = m_ControlPoints[m_iCurrentWaypointIdx].get();

                //If the new one is within the specified time then return
                if(m_lpCurrentWaypoint && ( (t >= m_lpCurrentWaypoint->m_T) && (t <= m_lpCurrentWaypoint->m_Tnext) ) )
                        return;
        }

        //If we got here then we could not find the waypoint the easy way, so just go through the list of them.
        for(int iIdx=0; iIdx<iCount; iIdx++)
        {
                ControlPoint *lpP0 = m_ControlPoints[iIdx].get();
                
                if( (t >= lpP0->m_T) && (t <= lpP0->m_Tnext) )
                {
                        m_iCurrentWaypointIdx= iIdx;
                        m_lpCurrentWaypoint = lpP0;
                        return;
                }
        }

        //If we got here we could not find anything, so set it to null
        m_iCurrentWaypointIdx = -1;
        m_lpCurrentWaypoint = NULL;
}

bool OsgLinearPath::Interpolate(const double t)
{
    double interpTime = t;

    // clear last interpolated values
    m_Interpolated.set(0.0, 0.0, 0.0);

    if (!m_CurveIsValid) {
        // reconstruct the curve
        BuildCurve();
    }

        if(!m_lpCurrentWaypoint || (m_lpCurrentWaypoint && ( (t < m_lpCurrentWaypoint->m_T) || (t > m_lpCurrentWaypoint->m_Tnext) ) ) )
                FindCurrentWaypoint(t);

        if(m_lpCurrentWaypoint)
        {
                //Time from start of this waypoint
                double dblWPT = (t-m_lpCurrentWaypoint->m_T);
                m_Interpolated = (m_lpCurrentWaypoint->m_V*dblWPT) + m_lpCurrentWaypoint->m_Pos;
        }

    return true;
}

osg::Node *OsgLinearPath::CreateTestGeom(const bool showControlPoints, 
                                       const unsigned int numSamples,
                                       ControlPointTransformFunctor* xform)
{
    osg::Node *ret = NULL;

    if (!m_CurveIsValid) {
        // reconstruct the curve
        BuildCurve();
    }

        if(m_ControlPoints.size() < 2)
                return NULL;

    if (m_CurveIsValid) {

        osg::Group *group = new osg::Group();
        group->setNodeMask(0xffffffff);

        if (showControlPoints) {

            // create the control point vertexes
            osg::ref_ptr<osg::Vec3Array> controlVerts = new osg::Vec3Array;

            for (unsigned int i = 0; i < m_ControlPoints.size() - 1; ++i) {
                osg::Vec3d p1 = m_ControlPoints[i]->m_Pos;
                osg::Vec3d p2 = m_ControlPoints[i+1]->m_Pos;

                if (xform != NULL) {
                    p1 = xform->Transform(p1);
                    p2 = xform->Transform(p2);
                }

                controlVerts->push_back(p1);
                controlVerts->push_back(p2);
            }

            osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;
            geometry->setVertexArray(controlVerts.get());

            osg::ref_ptr<osg::Vec4Array> color = new osg::Vec4Array;
            color->push_back(osg::Vec4(1.0, 1.0, 1.0, 1.0));
            geometry->setColorArray(color.get());
            geometry->setColorBinding(osg::Geometry::BIND_OVERALL);

            geometry->addPrimitiveSet(
                new osg::DrawArrays(osg::PrimitiveSet::LINES, 
                    0, controlVerts->size()));

            osg::ref_ptr<osg::Geode> geode = new osg::Geode;
            geode->addDrawable(geometry.get());

            // attach geode to scene graph
            group->addChild(geode.get());

        }

        {
            // -------  Curve Geometry  ------

            // create the curve vertexes
            osg::ref_ptr<osg::Vec3Array> curveVerts = new osg::Vec3Array;

            for (unsigned int i = 0; i < m_ControlPoints.size() - 1; ++i) {

                // interpolate from one point to the next based on time

                double t = m_ControlPoints[i]->m_T;
                double dt = (m_ControlPoints[i+1]->m_T - t) / 
                    double(numSamples-1);

                for (unsigned int ti = 0; ti < numSamples; ++ti) {

                    // get next point
                    OsgLinearPath::Interpolate(t);

                    osg::Vec3d p = GetInterpPosition(); 

                    if (xform != NULL) {
                        p = xform->Transform(p);
                    }

                    // add point to the list
                    curveVerts->push_back(p);

                    if (ti == (numSamples - 1)) {
                        // last point, complete the line strip with an extra point
                        curveVerts->push_back(p);
                    }

                    // increment time
                    t += dt;

                }
            }

            osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;
            geometry->setVertexArray(curveVerts.get());

            osg::ref_ptr<osg::Vec4Array> color = new osg::Vec4Array;
            color->push_back(osg::Vec4(m_vLineColor.r(), m_vLineColor.g(), m_vLineColor.b(), m_vLineColor.a()));
            geometry->setColorArray(color.get());
            geometry->setColorBinding(osg::Geometry::BIND_OVERALL);

            geometry->addPrimitiveSet(
                new osg::DrawArrays(osg::PrimitiveSet::LINE_STRIP, 
                    0, curveVerts->size()));

            osg::ref_ptr<osg::Geode> geode = new osg::Geode;
            geode->addDrawable(geometry.get());

            // attach geode to scene graph
            group->addChild(geode.get());

            // no lighting
            group->getOrCreateStateSet()->setMode(GL_LIGHTING, 
                osg::StateAttribute::OFF);
        }

        ret = group;
    }

    return ret;
}

CStdColor *OsgLinearPath::LineColor() {return &m_vLineColor;}

void OsgLinearPath::LineColor(CStdColor &aryColor)
{
        m_vLineColor = aryColor;
        RedrawCurve();
}

void OsgLinearPath::LineColor(float *aryColor)
{
        CStdColor vColor(aryColor[0], aryColor[1], aryColor[2], aryColor[3], 1);
        LineColor(vColor);
}

void OsgLinearPath::LineColor(std::string strXml)
{
        CStdColor vColor(1);
        vColor.Load(strXml, "LineColor");
        LineColor(vColor);
}

std::string OsgLinearPath::PartID() {return m_strPartID;}

void OsgLinearPath::PartID(std::string strID)
{
        m_strPartID = strID;
}

double OsgLinearPath::StartTime() {return m_dblStartTime;}

void OsgLinearPath::StartTime(double dblTime, bool bSortPaths)
{
        Std_IsAboveMin((double) 0, dblTime, true, "StartTime", true);
        m_dblStartTime = dblTime;
        RedrawCurve();

        if(bSortPaths && m_lpParentWindow)
                m_lpParentWindow->SortPaths();
}

double OsgLinearPath::EndTime() {return m_dblStartTime;}

void OsgLinearPath::EndTime(double dblTime, bool bSortPaths)
{
        Std_IsAboveMin((double) m_dblStartTime, dblTime, true, "EndTime", true);
        m_dblEndTime = dblTime;

        if(bSortPaths && m_lpParentWindow)
                m_lpParentWindow->SortPaths();
}

bool OsgLinearPath::Visible() 
{return m_bVisible;}

void OsgLinearPath::Visible(bool bVal)
{
        m_bVisible = bVal;
        MakeVisible(bVal);
}

bool OsgLinearPath::VisibleInSim() 
{return m_bVisibleInSim;}

void OsgLinearPath::VisibleInSim(bool bVal)
{m_bVisibleInSim = bVal;}

void OsgLinearPath::MakeVisible(bool bVal)
{
        if(m_osgSpline)
        {
                if(bVal)
                        m_osgSpline->setNodeMask(0x1);
                else
                        m_osgSpline->setNodeMask(0x0);
        }
}

bool OsgLinearPath::ShowWaypoints() 
{return m_bShowWaypoints;}

void OsgLinearPath::ShowWaypoints(bool bVal)
{
        m_bShowWaypoints = bVal;
        RedrawCurve();
}
bool OsgLinearPath::BeforePathTime(double dblTime)
{
        if(dblTime < m_dblStartTime)
                return true;
        else
                return false;
}

bool OsgLinearPath::WithinPathTime(double dblTime)
{
        if(dblTime >= m_dblStartTime && dblTime <= m_dblEndTime)
                return true;
        else
                return false;
}

bool OsgLinearPath::AfterPathTime(double dblTime)
{
        if(dblTime > m_dblEndTime)
                return true;
        else
                return false;
}

void OsgLinearPath::RemoveCurve()
{
        VsSimulator *lpVsSim = dynamic_cast<VsSimulator *>(m_lpSim);

        if(lpVsSim && lpVsSim->OSGRoot())
        {
                //If we already have a curve then get rid of it first.
                if(m_osgSpline.valid())
                {
                        lpVsSim->OSGRoot()->removeChild(m_osgSpline.get());
                        m_osgSpline.release();
                }
        }
}

void OsgLinearPath::RedrawCurve()
{
        VsSimulator *lpVsSim = dynamic_cast<VsSimulator *>(m_lpSim);

        RemoveCurve();

        if(lpVsSim && lpVsSim->OSGRoot())
        {
                //Now recreate it.
                InvalidateCurve();
                m_osgSpline = CreateTestGeom(m_bShowWaypoints);
                MakeVisible(m_bVisible);
                lpVsSim->OSGRoot()->addChild(m_osgSpline.get());
        }
}


void OsgLinearPath::SimStarting()
{
        MakeVisible(m_bVisibleInSim);
}

void OsgLinearPath::ResetSimulation()
{
        MakeVisible(m_bVisible);

        int iCount = m_ControlPoints.size();
        for(int iIndex=0; iIndex<iCount; iIndex++)
                m_ControlPoints[iIndex]->ResetSimulation();
}


bool OsgLinearPath::SetData(const std::string &strDataType, const std::string &strValue, bool bThrowError)
{
        std::string strType = Std_CheckString(strDataType);

        if(AnimatBase::SetData(strType, strValue, false))
                return true;

        if(strType == "TRACKPARTID")
        {
                PartID(strValue);
                Initialize();
                return true;
        }

        if(strType == "STARTTIME")
        {
                StartTime((double) atof(strValue.c_str()));
                return true;
        }

        if(strType == "ENDTIME")
        {
                EndTime((double) atof(strValue.c_str()));
                return true;
        }

        if(strType == "LINECOLOR")
        {
                LineColor(strValue);
                return true;
        }
        
        if(strDataType == "LINECOLOR.RED")
        {
                float aryVal[4] = {atof(strValue.c_str()), m_vLineColor.g(), m_vLineColor.b(), m_vLineColor.a()};
                LineColor(aryVal);
                return true;
        }

        if(strDataType == "LINECOLOR.GREEN")
        {
                float aryVal[4] = {m_vLineColor.r(), atof(strValue.c_str()), m_vLineColor.b(), m_vLineColor.a()};
                LineColor(aryVal);
                return true;
        }

        if(strDataType == "LINECOLOR.BLUE")
        {
                float aryVal[4] = {m_vLineColor.r(), m_vLineColor.g(), atof(strValue.c_str()), m_vLineColor.a()};
                LineColor(aryVal);
                return true;
        }

        if(strDataType == "LINECOLOR.ALPHA")
        {
                float aryVal[4] = {m_vLineColor.r(), m_vLineColor.g(), m_vLineColor.b(), atof(strValue.c_str())};
                LineColor(aryVal);
                return true;
        }

        if(strDataType == "VISIBLE")
        {
                Visible(Std_ToBool(strValue));
                return true;
        }

        if(strDataType == "VISIBLEINSIM")
        {
                VisibleInSim(Std_ToBool(strValue));
                return true;
        }

        if(strDataType == "SHOWWAYPOINTS")
        {
                ShowWaypoints(Std_ToBool(strValue));
                return true;
        }

        //If it was not one of those above then we have a problem.
        if(bThrowError)
                THROW_PARAM_ERROR(Al_Err_lInvalidDataType, Al_Err_strInvalidDataType, "Data Type", strDataType);

        return false;
}

void OsgLinearPath::QueryProperties(CStdPtrArray<TypeProperty> &aryProperties)
{
        AnimatBase::QueryProperties(aryProperties);

        aryProperties.Add(new TypeProperty("TrackPartID", AnimatPropertyType::String, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("StartTime", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("EndTime", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("LineColor", AnimatPropertyType::Xml, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("LineColor.Red", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("LineColor.Green", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("LineColor.Blue", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("LineColor.Alpha", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("VisibleInSim", AnimatPropertyType::Boolean, AnimatPropertyDirection::Set));
}


void OsgLinearPath::AddWaypoint(std::string strXml)
{
        CStdXml oXml;
        oXml.Deserialize(strXml);
        oXml.FindElement("Root");
        oXml.FindChildElement("Waypoint");

        osg::ref_ptr<ControlPoint> lpWaypoint = LoadWaypoint(oXml);

        lpWaypoint->Initialize();
        RedrawCurve();
}

void OsgLinearPath::RemoveWaypoint(std::string strID, bool bThrowError)
{
        int iPos = FindWaypointPos(strID, bThrowError);
        m_ControlPoints.erase(m_ControlPoints.begin()+iPos);
        RedrawCurve();
}

int OsgLinearPath::FindWaypointPos(std::string strID, bool bThrowError)
{
        std::string sID = Std_ToUpper(Std_Trim(strID));

        int iCount = m_ControlPoints.size();
        for(int iIndex=0; iIndex<iCount; iIndex++)
                if(m_ControlPoints[iIndex]->ID() == sID)
                        return iIndex;

        if(bThrowError)
                THROW_TEXT_ERROR(Al_Err_lBodyOrJointIDNotFound, Al_Err_strBodyOrJointIDNotFound, "ID");

        return -1;
}

bool OsgLinearPath::AddItem(const std::string &strItemType, const std::string &strXml, bool bThrowError, bool bDoNotInit)
{
        std::string strType = Std_CheckString(strItemType);

        if(strType == "WAYPOINT")
        {
                AddWaypoint(strXml);
                return true;
        }

        //If it was not one of those above then we have a problem.
        if(bThrowError)
                THROW_PARAM_ERROR(Al_Err_lInvalidItemType, Al_Err_strInvalidItemType, "Item Type", strItemType);

        return false;
}

bool OsgLinearPath::RemoveItem(const std::string &strItemType, const std::string &strID, bool bThrowError)
{
        std::string strType = Std_CheckString(strItemType);

        if(strType == "WAYPOINT")
        {
                RemoveWaypoint(strID);
                return true;
        }

        //If it was not one of those above then we have a problem.
        if(bThrowError)
                THROW_PARAM_ERROR(Al_Err_lInvalidItemType, Al_Err_strInvalidItemType, "Item Type", strItemType);

        return false;
}

void OsgLinearPath::Initialize()
{
        AnimatBase::Initialize();

        m_lpTrackBody = NULL;
        if(!Std_IsBlank(m_strPartID))
                m_lpTrackBody = dynamic_cast<BodyPart *>(m_lpSim->FindByID(m_strPartID));

        RedrawCurve();
}

void OsgLinearPath::Load(CStdXml &oXml)
{
        AnimatBase::Load(oXml);

        oXml.IntoElem();  //Into Spline Element

        m_vLineColor.Load(oXml, "LineColor", false);

        EndTime(oXml.GetChildDouble("EndTime", m_dblEndTime), false);
        StartTime(oXml.GetChildDouble("StartTime", m_dblStartTime), false);
        PartID(oXml.GetChildString("LinkedBodyPartID", m_strPartID));
        VisibleInSim(oXml.GetChildBool("VisibleInSim", m_bVisibleInSim));

        if(oXml.FindChildElement("Waypoints", false))
        {
                oXml.IntoElem(); //IntoOf Waypoints Element

                int iCount = oXml.NumberOfChildren();
                for(int iIndex=0; iIndex<iCount; iIndex++)
                {
                        oXml.FindChildByIndex(iIndex);
                        LoadWaypoint(oXml);
                }

                oXml.OutOfElem(); //OutOf Waypoints Element
        }

        oXml.OutOfElem(); //OutOf Spline Element

    if(m_lpParentWindow)
        m_lpParentWindow->SortPaths();
}

osg::ref_ptr<ControlPoint> OsgLinearPath::LoadWaypoint(CStdXml &oXml)
{
        ControlPoint *lpPoint = NULL;

try
{
        osg::ref_ptr<ControlPoint> lpPoint(new ControlPoint());

        lpPoint->SetSystemPointers(m_lpSim, NULL, NULL, NULL, true);

        lpPoint->Load(oXml);
        lpPoint->ParentSpline(this);

        if(!AddControlPoint(lpPoint.get()))
                THROW_PARAM_ERROR(Vs_Err_lUnableToAddWaypoint, Vs_Err_strUnableToAddWaypoint, "Waypoint ID", lpPoint->ID());

        return lpPoint;
}
catch(CStdErrorInfo oError)
{
        RELAY_ERROR(oError);
        return NULL;
}
catch(...)
{
        THROW_ERROR(Std_Err_lUnspecifiedError, Std_Err_strUnspecifiedError);
        return NULL;
}
}


osg::Vec3d ControlPoint::Position() {return m_Pos;}

void ControlPoint::Position(CStdFPoint &oPoint, bool bUseScaling) 
{
        CStdFPoint oNewPoint, oReportPosition;
        if(bUseScaling && m_lpSim)
        {
                oNewPoint = oPoint * m_lpSim->InverseDistanceUnits();
                oReportPosition = oNewPoint * m_lpSim->DistanceUnits();
        }
        else
        {
                oNewPoint = oPoint;
                oReportPosition = oPoint;
        }

        m_Pos.set(oNewPoint.x, oNewPoint.y, oNewPoint.z);
        m_ReportPos.set(oReportPosition.x, oReportPosition.y, oReportPosition.z);

        if(m_lpParentSpline)
                m_lpParentSpline->RedrawCurve();
}

void ControlPoint::Position(float fltX, float fltY, float fltZ, bool bUseScaling) 
{
        CStdFPoint vPos(fltX, fltY, fltZ);
        Position(vPos, bUseScaling);
}

void ControlPoint::Position(std::string strXml, bool bUseScaling)
{
        CStdXml oXml;
        oXml.Deserialize(strXml);
        oXml.FindElement("Root");
        oXml.FindChildElement("Position");
        
        CStdFPoint vPos;
        Std_LoadPoint(oXml, "Position", vPos);
        Position(vPos, bUseScaling);
}

double ControlPoint::Time()
{return m_T;}

void ControlPoint::Time(double dblVal)
{
        Std_IsAboveMin((double) 0, dblVal, true, "Waypoint Time", true);
        m_T = dblVal;
        if(m_lpParentSpline)
                m_lpParentSpline->RedrawCurve();
}

bool ControlPoint::SetData(const std::string &strDataType, const std::string &strValue, bool bThrowError)
{
        std::string strType = Std_CheckString(strDataType);

        if(AnimatBase::SetData(strType, strValue, false))
                return true;

        if(strDataType == "POSITION")
        {
                Position(strValue);
                return true;
        }

        if(strDataType == "POSITION.X")
        {
                Position(atof(strValue.c_str()), m_ReportPos.y(), m_ReportPos.z());
                return true;
        }

        if(strDataType == "POSITION.Y")
        {
                Position(m_ReportPos.x(), atof(strValue.c_str()), m_ReportPos.z());
                return true;
        }

        if(strDataType == "POSITION.Z")
        {
                Position(m_ReportPos.x(), m_ReportPos.y(), atof(strValue.c_str()));
                return true;
        }

        if(strDataType == "TIME")
        {
                Time((double) atof(strValue.c_str()));
                return true;
        }

        //If it was not one of those above then we have a problem.
        if(bThrowError)
                THROW_PARAM_ERROR(Al_Err_lInvalidDataType, Al_Err_strInvalidDataType, "Data Type", strDataType);

        return false;
}


void ControlPoint::QueryProperties(CStdPtrArray<TypeProperty> &aryProperties)
{
        AnimatBase::QueryProperties(aryProperties);

        aryProperties.Add(new TypeProperty("Position", AnimatPropertyType::Xml, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("Position.X", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("Position.Y", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("Position.Z", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
        aryProperties.Add(new TypeProperty("Time", AnimatPropertyType::Float, AnimatPropertyDirection::Set));
}

void ControlPoint::Load(StdUtils::CStdXml &oXml)
{
        AnimatBase::Load(oXml);

        oXml.IntoElem();  //Into Spline Element

        CStdFPoint vPos;
        Std_LoadPoint(oXml, "Position", vPos);
        Position(vPos);

        Time(oXml.GetChildDouble("Time", 0));

        oXml.OutOfElem(); //OutOf Spline Element
}

        }                       // Visualization
//}                             //VortexAnimatSim

}