// *
// * Build a path from bezier control points
// * @exception Ogre::InvalidStateException The curve must at least contain 2 points
//
//-----------------------------------------------------------------------
public Path realizePath()
{
if (mPoints.size() < 2)
{
OGRE_EXCEPT("Ogre::Exception::ERR_INVALID_STATE", "The curve must at least contain 2 points", "Procedural::BezierCurve3::realizePath()");
}
;
uint[] coef = new uint[mPoints.size()];
if (mPoints.size() == 2)
{
coef[0] = 1;
coef[1] = 1;
}
else if (mPoints.size() == 3)
{
coef[0] = 1;
coef[1] = 2;
coef[2] = 1;
}
else if (mPoints.size() == 4)
{
coef[0] = 1;
coef[1] = 3;
coef[2] = 3;
coef[3] = 1;
}
else
{
for (uint i = 0; i < (int)mPoints.Count; i++)
{
coef[i] = Utils.binom((uint)mPoints.Count - 1, i);
}
}
uint div = (uint)(mPoints.Count - 1) * mNumSeg + 1;
float dt = 1.0f / (float)div;
Path path = new Path();
float t = 0.0f;
while (t < 1.0f)
{
float x = 0.0f;
float y = 0.0f;
float z = 0.0f;
for (int i = 0; i < (int)mPoints.size(); i++)
{
float fac = coef[i] * (float)System.Math.Pow(t, i) * (float)System.Math.Pow(1.0f - t, (int)mPoints.Count - 1 - i);
x += fac * mPoints[i].x;
y += fac * mPoints[i].y;
z += fac * mPoints[i].z;
}
path.addPoint(x, y, z);
t += dt;
}
coef = null;
return(path);
}
// *
// * Builds a path from control points
//
//-----------------------------------------------------------------------
public Path realizePath()
{
Path path = new Path();
//Precompute tangents
for (uint i = 0; i < mPoints.size(); ++i)
{
ControlPoint mp = mPoints[(int)i];
GlobalMembers.computeTangents(ref mp, safeGetPoint(i - 1).position, safeGetPoint(i + 1).position);
}
int numPoints = mClosed ? mPoints.size() : (mPoints.size() - 1);
for (int i = 0; i < numPoints; ++i)
{
ControlPoint pointBefore = mPoints[i];
ControlPoint pointAfter = safeGetPoint((uint)i + 1);
std_vector <Vector3> path_getPointsReference = path.getPointsReference();
GlobalMembers.computeCubicHermitePoints(pointBefore, pointAfter, mNumSeg, ref path_getPointsReference);
if (i == mPoints.size() - 2 && !mClosed)
{
path.addPoint(pointAfter.position);
}
}
if (mClosed)
{
path.close();
}
return(path);
}
// *
// * Build a path from Catmull-Rom control points
//
//-----------------------------------------------------------------------
public Path realizePath()
{
Path path = new Path();
int numPoints = mClosed ? mPoints.Count : mPoints.Count - 1;
for (uint i = 0; i < numPoints; ++i)
{
Vector3 P1 = safeGetPoint(i - 1);
Vector3 P2 = safeGetPoint(i);
Vector3 P3 = safeGetPoint(i + 1);
Vector3 P4 = safeGetPoint(i + 2);
std_vector <Vector3> lref = path.getPointsReference();
GlobalMembers.computeCatmullRomPoints(P1, P2, P3, P4, mNumSeg, ref lref);
if (i == mPoints.size() - 2 && !mClosed)
{
path.addPoint(P3);
}
}
if (mClosed)
{
path.close();
}
return(path);
}
/// Outputs a path
public Path realizePath()
{
Path p = new Path();
for (uint i = 0; i <= mNumSeg; ++i)
{
p.addPoint((1 - i / (float)mNumSeg) * mPoint1 + i / (float)mNumSeg * mPoint2);
}
return(p);
}
/// Creates a path with the keys of this path and extra keys coming from a track
//
//ORIGINAL LINE: Path mergeKeysWithTrack(const Track& track) const
public Path mergeKeysWithTrack(Track track)
{
if (!track.isInsertPoint() || track.getAddressingMode() == Track.AddressingMode.AM_POINT)
{
return(this);
}
float totalLength = getTotalLength();
float lineicPos = 0;
float pathLineicPos = 0;
Path outputPath = new Path();
outputPath.addPoint(getPoint(0));
for (int i = 1; i < mPoints.size();)
{
float nextLineicPos = pathLineicPos + (mPoints[i] - mPoints[i - 1]).Length;
std_pair <float, float> it = track._getKeyValueAfter(lineicPos, lineicPos / totalLength, (uint)(i - 1));
float nextTrackPos = it.first;
if (track.getAddressingMode() == Track.AddressingMode.AM_RELATIVE_LINEIC)
{
nextTrackPos *= totalLength;
}
// Adds the closest point to the curve, being either from the path or the track
if (nextLineicPos <= nextTrackPos || lineicPos >= nextTrackPos)
{
outputPath.addPoint(mPoints[i]);
i++;
lineicPos = nextLineicPos;
pathLineicPos = nextLineicPos;
}
else
{
outputPath.addPoint(getPosition(i - 1, (nextTrackPos - pathLineicPos) / (nextLineicPos - pathLineicPos)));
lineicPos = nextTrackPos;
}
}
return(outputPath);
}
// *
// * Builds a shape from control points
//
//-----------------------------------------------------------------------
public Path realizePath()
{
Path helix = new Path();
float angleStep = Math.TWO_PI / (float)(mNumSegPath);
float heightStep = mHeight / (float)(mNumSegPath);
for (int i = 0; i < mNumRound * mNumSegPath; i++)
{
helix.addPoint(mRadius * Math.Cos(angleStep * i), heightStep * i, mRadius * Math.Sin(angleStep * i));
}
return(helix);
}
/// Extracts a part of the shape as a new path
/// @param first first index to be in the new path
/// @param last last index to be in the new path
public Path extractSubPath(int first, int last) //提取 抽出 抽取
{
Path p = new Path();
for (int i = first; i < last; i++)
{
p.addPoint(mPoints[i]);
}
if (mClosed)
{
p.close();
}
return(p);
}
/// Converts the shape to a path, with Y=0
//-----------------------------------------------------------------------
//
//ORIGINAL LINE: Path convertToPath() const
public Path convertToPath() {
Path p = new Path();
//for (List<Vector2>.Enumerator it = mPoints.GetEnumerator(); it.MoveNext(); ++it)
foreach (var it in mPoints) {
p.addPoint(it.x, 0, it.y);
}
if (mClosed)
p.close();
return p;
}
public void buildFromSegmentSoup(std_vector<Segment3D> segList, ref std_vector<Path> @out)
{
//typedef std::multimap<Vector3, Vector3, Vector3Comparator> Vec3MultiMap;
//Vec3MultiMap segs;
std_multimap<Vector3,Vector3>segs=new std_multimap<Vector3,Vector3>(new Vector3Comparator());
// for (std::vector<Segment3D>::const_iterator it = segList.begin(); it != segList.end(); ++it)
foreach(var it in segList)
{
//segs.insert(std::pair<Vector3, Vector3 > (it->mA, it->mB));
//segs.insert(std::pair<Vector3, Vector3 > (it->mB, it->mA));
segs.insert(it.mA,it.mB);
segs.insert(it.mB,it.mA);
}
while (!segs.empty())
{
Vector3 headFirst = segs.get(0).first;//segs.begin()->first;
Vector3 headSecond = segs.get(0).second[0];//segs.begin()->second;
Path p=new Path();
p.addPoint(headFirst).addPoint(headSecond);
//Vec3MultiMap::iterator firstSeg = segs.begin();
int firstSeg_pos=segs.begin();
Vector3 firstSeg=segs.get(0).first;
//std::pair<Vec3MultiMap::iterator, Vec3MultiMap::iterator> correspondants2 = segs.equal_range(headSecond);
std_pair<std_pair<Vector3,List<Vector3>>,std_pair<Vector3,List<Vector3>>> correspondants2 = segs.equal_range(headSecond);
//for (Vec3MultiMap::iterator it = correspondants2.first; it != correspondants2.second;)
for(int i=correspondants2.first.second.Count-1;i>=0;i--)
{
// Vec3MultiMap::iterator removeIt = it++;
Vector3 removeIt=correspondants2.first.second[i];
//if ((removeIt->second - firstSeg->first).squaredLength() < 1e-8)
if((removeIt-firstSeg).SquaredLength<1e-8)
segs.erase(removeIt);
}
segs.erase(firstSeg);
bool foundSomething = true;
while (!segs.empty() && foundSomething)
{
foundSomething = false;
//Vec3MultiMap::iterator next = segs.find(headSecond);
int next_pos = segs.find(headSecond);
//if (next != segs.end())
if(next_pos!=-1)
{
std_pair<Vector3,List<Vector3>>next=segs.get((uint)next_pos);
foundSomething = true;
headSecond = next.second[0];
p.addPoint(headSecond);
//std::pair<Vec3MultiMap::iterator, Vec3MultiMap::iterator> correspondants = segs.equal_range(headSecond);
std_pair<std_pair<Vector3,List<Vector3>>,std_pair<Vector3,List<Vector3>>>correspondants = segs.equal_range(headSecond);
//for (Vec3MultiMap::iterator it = correspondants.first; it != correspondants.second;)
for (int i = correspondants.first.second.Count - 1; i >= 0;i-- ) {
//Vec3MultiMap::iterator removeIt = it++;
Vector3 removeIt = correspondants.first.second[i];
//if ((removeIt->second - next->first).squaredLength() < 1e-8)
if ((removeIt - next.first).SquaredLength < 1e-8)
segs.erase(removeIt);
}
//segs.erase(next);
segs.erase(next.first);
}
//Vec3MultiMap::iterator previous = segs.find(headFirst);
int previous_pos=segs.find(headFirst);
//if (previous != segs.end())
if(previous_pos!=-1)
{
std_pair<Vector3, List<Vector3>> previous = segs.get((uint)previous_pos);
foundSomething = true;
//p.insertPoint(0, previous.second);
p.insertPoint(0, previous.second[0]);//???
headFirst = previous.second[0];
//std::pair<Vec3MultiMap::iterator, Vec3MultiMap::iterator> correspondants = segs.equal_range(headFirst);
std_pair<std_pair<Vector3,List<Vector3>>,std_pair<Vector3,List<Vector3>>>correspondants = segs.equal_range(headFirst);
//for (Vec3MultiMap::iterator it = correspondants.first; it != correspondants.second;)
for(int i=correspondants.first.second.Count-1;i>=0;i--)
{
//Vec3MultiMap::iterator removeIt = it++;
Vector3 removeIt=correspondants.first.second[i];
//if ((removeIt->second - previous->first).squaredLength() < 1e-8)
if((removeIt-previous.first).SquaredLength<1e-8)
segs.erase(removeIt);
}
//segs.erase(previous);
segs.erase(previous.first);
}
}
if ((p.getPoint(0)-p.getPoint(p.getSegCount() + 1)).SquaredLength < 1e-6)
{
p.getPointsReference().pop_back();
p.close();
}
@out.push_back(p);
}
}
/// Extracts a part of the shape as a new path
/// @param first first index to be in the new path
/// @param last last index to be in the new path
public Path extractSubPath(int first, int last) {//提取 抽出 抽取
Path p = new Path();
for (int i = first; i < last; i++) {
p.addPoint(mPoints[i]);
}
if (mClosed) {
p.close();
}
return p;
}
/// Creates a path with the keys of this path and extra keys coming from a track
//
//ORIGINAL LINE: Path mergeKeysWithTrack(const Track& track) const
public Path mergeKeysWithTrack(Track track) {
if (!track.isInsertPoint() || track.getAddressingMode() == Track.AddressingMode.AM_POINT)
return this;
float totalLength = getTotalLength();
float lineicPos = 0;
float pathLineicPos = 0;
Path outputPath = new Path();
outputPath.addPoint(getPoint(0));
for (int i = 1; i < mPoints.size(); ) {
float nextLineicPos = pathLineicPos + (mPoints[i] - mPoints[i - 1]).Length;
std_pair<float, float> it = track._getKeyValueAfter(lineicPos, lineicPos / totalLength, (uint)(i - 1));
float nextTrackPos = it.first;
if (track.getAddressingMode() == Track.AddressingMode.AM_RELATIVE_LINEIC)
nextTrackPos *= totalLength;
// Adds the closest point to the curve, being either from the path or the track
if (nextLineicPos <= nextTrackPos || lineicPos >= nextTrackPos) {
outputPath.addPoint(mPoints[i]);
i++;
lineicPos = nextLineicPos;
pathLineicPos = nextLineicPos;
}
else {
outputPath.addPoint(getPosition(i - 1, (nextTrackPos - pathLineicPos) / (nextLineicPos - pathLineicPos)));
lineicPos = nextTrackPos;
}
}
return outputPath;
}
public void buildFromSegmentSoup(std_vector <Segment3D> segList, ref std_vector <Path> @out)
{
//typedef std::multimap<Vector3, Vector3, Vector3Comparator> Vec3MultiMap;
//Vec3MultiMap segs;
std_multimap <Vector3, Vector3> segs = new std_multimap <Vector3, Vector3>(new Vector3Comparator());
// for (std::vector<Segment3D>::const_iterator it = segList.begin(); it != segList.end(); ++it)
foreach (var it in segList)
{
//segs.insert(std::pair<Vector3, Vector3 > (it->mA, it->mB));
//segs.insert(std::pair<Vector3, Vector3 > (it->mB, it->mA));
segs.insert(it.mA, it.mB);
segs.insert(it.mB, it.mA);
}
while (!segs.empty())
{
Vector3 headFirst = segs.get(0).first; //segs.begin()->first;
Vector3 headSecond = segs.get(0).second[0]; //segs.begin()->second;
Path p = new Path();
p.addPoint(headFirst).addPoint(headSecond);
//Vec3MultiMap::iterator firstSeg = segs.begin();
int firstSeg_pos = segs.begin();
Vector3 firstSeg = segs.get(0).first;
//std::pair<Vec3MultiMap::iterator, Vec3MultiMap::iterator> correspondants2 = segs.equal_range(headSecond);
std_pair <std_pair <Vector3, List <Vector3> >, std_pair <Vector3, List <Vector3> > > correspondants2 = segs.equal_range(headSecond);
//for (Vec3MultiMap::iterator it = correspondants2.first; it != correspondants2.second;)
for (int i = correspondants2.first.second.Count - 1; i >= 0; i--)
{
// Vec3MultiMap::iterator removeIt = it++;
Vector3 removeIt = correspondants2.first.second[i];
//if ((removeIt->second - firstSeg->first).squaredLength() < 1e-8)
if ((removeIt - firstSeg).SquaredLength < 1e-8)
{
segs.erase(removeIt);
}
}
segs.erase(firstSeg);
bool foundSomething = true;
while (!segs.empty() && foundSomething)
{
foundSomething = false;
//Vec3MultiMap::iterator next = segs.find(headSecond);
int next_pos = segs.find(headSecond);
//if (next != segs.end())
if (next_pos != -1)
{
std_pair <Vector3, List <Vector3> > next = segs.get((uint)next_pos);
foundSomething = true;
headSecond = next.second[0];
p.addPoint(headSecond);
//std::pair<Vec3MultiMap::iterator, Vec3MultiMap::iterator> correspondants = segs.equal_range(headSecond);
std_pair <std_pair <Vector3, List <Vector3> >, std_pair <Vector3, List <Vector3> > > correspondants = segs.equal_range(headSecond);
//for (Vec3MultiMap::iterator it = correspondants.first; it != correspondants.second;)
for (int i = correspondants.first.second.Count - 1; i >= 0; i--)
{
//Vec3MultiMap::iterator removeIt = it++;
Vector3 removeIt = correspondants.first.second[i];
//if ((removeIt->second - next->first).squaredLength() < 1e-8)
if ((removeIt - next.first).SquaredLength < 1e-8)
{
segs.erase(removeIt);
}
}
//segs.erase(next);
segs.erase(next.first);
}
//Vec3MultiMap::iterator previous = segs.find(headFirst);
int previous_pos = segs.find(headFirst);
//if (previous != segs.end())
if (previous_pos != -1)
{
std_pair <Vector3, List <Vector3> > previous = segs.get((uint)previous_pos);
foundSomething = true;
//p.insertPoint(0, previous.second);
p.insertPoint(0, previous.second[0]);//???
headFirst = previous.second[0];
//std::pair<Vec3MultiMap::iterator, Vec3MultiMap::iterator> correspondants = segs.equal_range(headFirst);
std_pair <std_pair <Vector3, List <Vector3> >, std_pair <Vector3, List <Vector3> > > correspondants = segs.equal_range(headFirst);
//for (Vec3MultiMap::iterator it = correspondants.first; it != correspondants.second;)
for (int i = correspondants.first.second.Count - 1; i >= 0; i--)
{
//Vec3MultiMap::iterator removeIt = it++;
Vector3 removeIt = correspondants.first.second[i];
//if ((removeIt->second - previous->first).squaredLength() < 1e-8)
if ((removeIt - previous.first).SquaredLength < 1e-8)
{
segs.erase(removeIt);
}
}
//segs.erase(previous);
segs.erase(previous.first);
}
}
if ((p.getPoint(0) - p.getPoint(p.getSegCount() + 1)).SquaredLength < 1e-6)
{
p.getPointsReference().pop_back();
p.close();
}
@out.push_back(p);
}
}
// *
// * Builds a shape from control points
// * \exception Ogre::InvalidStateException The path contains no points
//
//-----------------------------------------------------------------------
public Path realizePath()
{
if (mPoints.empty())
{
OGRE_EXCEPT("Ogre::Exception::ERR_INVALID_STATE", "The path contains no points", "Procedural::RoundedCornerSpline3::realizePath()");
}
;
Path path = new Path();
int numPoints = mClosed ? mPoints.Count : (mPoints.Count - 2);
if (!mClosed)
{
path.addPoint(mPoints[0]);
}
for (uint i = 0; i < numPoints; ++i)
{
Vector3 p0 = safeGetPoint(i);
Vector3 p1 = safeGetPoint(i + 1);
Vector3 p2 = safeGetPoint(i + 2);
Vector3 vBegin = p1 - p0;
Vector3 vEnd = p2 - p1;
// We're capping the radius if it's too big compared to segment length
float radius = mRadius;
float smallestSegLength = System.Math.Min(vBegin.Length, vEnd.Length);
if (smallestSegLength < 2 * mRadius)
{
radius = smallestSegLength / 2.0f;
}
Vector3 pBegin = p1 - vBegin.NormalisedCopy * radius;
Vector3 pEnd = p1 + vEnd.NormalisedCopy * radius;
Mogre_Procedural.Plane plane1 = new Plane(vBegin, pBegin);
Mogre_Procedural.Plane plane2 = new Plane(vEnd, pEnd);
Line axis = new Line();
plane1.intersect(plane2, ref axis);
Vector3 vradBegin = axis.shortestPathToPoint(pBegin);
Vector3 vradEnd = axis.shortestPathToPoint(pEnd);
Quaternion q = vradBegin.GetRotationTo(vradEnd);
Vector3 center = pBegin - vradBegin;
Radian angleTotal = new Radian();
Vector3 vAxis = new Vector3();
q.ToAngleAxis(out angleTotal, out vAxis);
for (uint j = 0; j <= mNumSeg; j++)
{
q.FromAngleAxis(angleTotal * (float)j / (float)mNumSeg, vAxis);
path.addPoint(center + q * vradBegin);
}
}
if (!mClosed)
{
path.addPoint(mPoints[mPoints.size() - 1]);
}
if (mClosed)
{
path.close();
}
return(path);
}
