///<summary>
/// Appends another path at the end of this one, relative to the last point of this path
///</summary>
public Path appendPathRel(Path other)
{
if (mPoints.empty())
{
appendPath(other);
}
else
{
Vector3 refVector = mPoints[mPoints.Count - 1]; //*(mPoints.end()-1);
Vector3[] pointList = (other.mPoints.ToArray());
//for (List<Vector3>.Enumerator it = pointList.GetEnumerator(); it.MoveNext(); ++it)
// it.Current += refVector;
for (int i = 0; i < pointList.Length; i++)
{
pointList[i] += refVector;
}
//mPoints.insert(mPoints.end(), pointList.begin(), pointList.end());
mPoints.AddRange(pointList);
}
return(this);
}
//-----------------------------------------------------------------------
//
//ORIGINAL LINE: MultiShape _booleanOperation(const Shape& STLAllocator<U, AllocPolicy>, BooleanOperationType opType) const
private MultiShape _booleanOperation(Shape other, BooleanOperationType opType) {
if (!mClosed || mPoints.size() < 2)
OGRE_EXCEPT("Ogre::Exception::ERR_INVALID_STATE", "Current shapes must be closed and has to contain at least 2 points!", "Procedural::Shape::_booleanOperation(const Procedural::Shape&, Procedural::BooleanOperationType)");
if (!other.mClosed || other.mPoints.size() < 2)
OGRE_EXCEPT("Ogre::Exception::ERR_INVALIDPARAMS", "Other shapes must be closed and has to contain at least 2 points!", "Procedural::Shape::_booleanOperation(const Procedural::Shape&, Procedural::BooleanOperationType)");
;
// Compute the intersection between the 2 shapes
std_vector<IntersectionInShape> intersections = new std_vector<IntersectionInShape>();
_findAllIntersections(other, ref intersections);
// Build the resulting shape
if (intersections.empty()) {
if (isPointInside(other.getPoint(0))) {
// Shape B is completely inside shape A
if (opType == BooleanOperationType.BOT_UNION) {
MultiShape ms = new MultiShape();
ms.addShape(this);
return ms;
}
else if (opType == BooleanOperationType.BOT_INTERSECTION) {
MultiShape ms = new MultiShape();
ms.addShape(other);
return ms;
}
else if (opType == BooleanOperationType.BOT_DIFFERENCE) {
MultiShape ms = new MultiShape();
ms.addShape(this);
ms.addShape(other);
ms.getShape(1).switchSide();
return ms;
}
}
else if (other.isPointInside(getPoint(0))) {
// Shape A is completely inside shape B
if (opType == BooleanOperationType.BOT_UNION) {
MultiShape ms = new MultiShape();
ms.addShape(other);
return ms;
}
else if (opType == BooleanOperationType.BOT_INTERSECTION) {
MultiShape ms = new MultiShape();
ms.addShape(this);
return ms;
}
else if (opType == BooleanOperationType.BOT_DIFFERENCE) {
MultiShape ms = new MultiShape();
ms.addShape(this);
ms.addShape(other);
ms.getShape(0).switchSide();
return ms;
}
}
else {
if (opType == BooleanOperationType.BOT_UNION) {
MultiShape ms = new MultiShape();
ms.addShape(this);
ms.addShape(other);
return ms;
}
else if (opType == BooleanOperationType.BOT_INTERSECTION)
return new MultiShape(); //empty result
else if (opType == BooleanOperationType.BOT_DIFFERENCE)
return new MultiShape(); //empty result
}
}
MultiShape outputMultiShape = new MultiShape();
Shape[] inputShapes = new Shape[2];
inputShapes[0] = this;
inputShapes[1] = other;
while (!intersections.empty()) {
Shape outputShape = new Shape();
byte shapeSelector = 0; // 0 : first shape, 1 : second shape
Vector2 currentPosition = intersections[0].position;//intersections.GetEnumerator().position;
IntersectionInShape firstIntersection = intersections[0];//*intersections.GetEnumerator();
uint currentSegment = firstIntersection.index[shapeSelector];
//C++ TO C# CONVERTER TODO TASK: There is no direct equivalent to the STL vector 'erase' method in C#:
//intersections.erase(intersections.GetEnumerator());//ÒƳý
intersections.erase(firstIntersection, true);
outputShape.addPoint(currentPosition);
sbyte isIncreasing = 0; // +1 if increasing, -1 if decreasing, 0 if undefined
if (!_findWhereToGo(inputShapes, opType, firstIntersection, ref shapeSelector, ref isIncreasing, ref currentSegment)) {
// That intersection is located on a place where the resulting shape won't go => discard
continue;
}
while (true) {
// find the closest intersection on the same segment, in the correct direction
//List<IntersectionInShape>.Enumerator found_next_intersection = intersections.end();
IntersectionInShape found_next_intersection = intersections[intersections.Count - 1];
int found_next_intersection_pos = -1;
float distanceToNextIntersection = float.MaxValue;// std.numeric_limits<Real>.max();
uint nextPoint = currentSegment + (uint)(isIncreasing == 1 ? 1 : 0);
bool nextPointIsOnIntersection = false;
//for (List<IntersectionInShape>.Enumerator it = intersections.GetEnumerator(); it.MoveNext(); ++it)
for (int i = 0; i < intersections.Count; i++) {
IntersectionInShape it = intersections[i];
if (currentSegment == it.index[shapeSelector]) {
if (((it.position - currentPosition).DotProduct(it.position - inputShapes[shapeSelector].getPoint((int)nextPoint)) < 0f) || (it.onVertex[shapeSelector] && nextPoint == it.index[shapeSelector])) {
// found an intersection between the current one and the next segment point
float d = (it.position - currentPosition).Length;
if (d < distanceToNextIntersection) {
// check if we have the nearest intersection
found_next_intersection = it;
found_next_intersection_pos = i;
distanceToNextIntersection = d;
}
}
}
if (nextPoint == it.index[shapeSelector] && it.onVertex[shapeSelector])
nextPointIsOnIntersection = true;
}
// stop condition
if (currentSegment == firstIntersection.index[shapeSelector]) {
// we found ourselves on the same segment as the first intersection and no other
if ((firstIntersection.position - currentPosition).DotProduct(firstIntersection.position - inputShapes[shapeSelector].getPoint((int)nextPoint)) < 0f) {
float d = (firstIntersection.position - currentPosition).Length;
if (d > 0.0f && d < distanceToNextIntersection) {
outputShape.close();
break;
}
}
}
// We actually found the next intersection => change direction and add current intersection to the list
//if (found_next_intersection.MoveNext())
//if (intersections.Count > 1) {
if (found_next_intersection_pos != -1) {
//IntersectionInShape currentIntersection = found_next_intersection.Current;
IntersectionInShape currentIntersection = found_next_intersection;
intersections.erase(found_next_intersection, true);
//IntersectionInShape currentIntersection = intersections[intersections.Count - 1];
outputShape.addPoint(currentIntersection.position);
bool result = _findWhereToGo(inputShapes, opType, currentIntersection, ref shapeSelector, ref isIncreasing, ref currentSegment);
if (result == null) {
OGRE_EXCEPT("Ogre::Exception::ERR_INTERNAL_ERROR", "We should not be here!", "Procedural::Shape::_booleanOperation(const Procedural::Shape&, Procedural::BooleanOperationType)");
;
}
}
else {
// no intersection found for the moment => just continue on the current segment
if (!nextPointIsOnIntersection) {
if (isIncreasing == 1)
currentPosition = inputShapes[shapeSelector].getPoint((int)currentSegment + 1);
else
currentPosition = inputShapes[shapeSelector].getPoint((int)currentSegment);
outputShape.addPoint(currentPosition);
}
currentSegment = (uint)Utils.modulo((int)currentSegment + isIncreasing, inputShapes[shapeSelector].getSegCount());
}
}
outputMultiShape.addShape(outputShape);
}
return outputMultiShape;
}
// *
// * Builds a shape from control points
// * \exception Ogre::InvalidStateException The path contains no points
//
//-----------------------------------------------------------------------
public Shape realizeShape()
{
if (mPoints.empty())
{
OGRE_EXCEPT("Ogre::Exception::ERR_INVALID_STATE", "The shape contains no points", "Procedural::RoundedCornerSpline2::realizePath()");
}
;
Shape shape = new Shape();
int numPoints = mClosed ? mPoints.Count : (mPoints.Count - 2);
if (!mClosed)
{
shape.addPoint(mPoints[0]);
}
for (uint i = 0; i < numPoints; ++i)
{
Vector2 p0 = safeGetPoint(i);
Vector2 p1 = safeGetPoint(i + 1);
Vector2 p2 = safeGetPoint(i + 2);
Vector2 vBegin = p1 - p0;
Vector2 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;
}
Vector2 pBegin = p1 - vBegin.NormalisedCopy * radius;
Vector2 pEnd = p1 + vEnd.NormalisedCopy * radius;
Line2D line1 = new Line2D(pBegin, vBegin.Perpendicular);
Line2D line2 = new Line2D(pEnd, vEnd.Perpendicular);
Vector2 center = new Vector2();
line1.findIntersect(line2, ref center);
Vector2 vradBegin = pBegin - center;
Vector2 vradEnd = pEnd - center;
Radian angleTotal = Utils.angleBetween(vradBegin, vradEnd);
if (vradBegin.CrossProduct(vradEnd) < 0f)
{
angleTotal = -angleTotal;
}
for (uint j = 0; j <= mNumSeg; j++)
{
Vector2 deltaVector = Utils.rotateVector2(vradBegin, (float)j * angleTotal / (float)mNumSeg);
shape.addPoint(center + deltaVector);
}
}
if (!mClosed)
{
shape.addPoint(mPoints[mPoints.size() - 1]);
}
if (mClosed)
{
shape.close();
}
shape.setOutSide(mOutSide);
return(shape);
}
//void Triangulator::_recursiveTriangulatePolygon(const DelaunaySegment& cuttingSeg, std::vector<int> inputPoints, DelaunayTriangleBuffer& tbuffer, const PointList& pointList) const
void _recursiveTriangulatePolygon(DelaunaySegment cuttingSeg, std_vector <int> inputPoints, DelaunayTriangleBuffer tbuffer, PointList pointList)
{
if (inputPoints.size() == 0)
{
return;
}
if (inputPoints.size() == 1)
{
Triangle t2 = new Triangle(pointList);
//t.setVertices(cuttingSeg.i1, cuttingSeg.i2, inputPoints.begin());
t2.setVertices(cuttingSeg.i1, cuttingSeg.i2, inputPoints.front());
t2.makeDirectIfNeeded();
tbuffer.push_back(t2);
return;
}
// Find a point which, when associated with seg.i1 and seg.i2, builds a Delaunay triangle
//std::vector<int>::iterator currentPoint = inputPoints.begin();
int currentPoint_pos = inputPoints.begin();
int currentPoint = inputPoints.front();
bool found = false;
while (!found)
{
bool isDelaunay = true;
//Circle c=new Circle(pointList[*currentPoint], pointList[cuttingSeg.i1], pointList[cuttingSeg.i2]);
Circle c = new Circle(pointList[currentPoint], pointList[cuttingSeg.i1], pointList[cuttingSeg.i2]);
//for (std::vector<int>::iterator it = inputPoints.begin(); it!=inputPoints.end(); ++it)
int idx = -1;
foreach (var it in inputPoints)
{
idx++;
//if (c.isPointInside(pointList[*it]) && (*it != *currentPoint))
if (c.isPointInside(pointList[it]) && (it != currentPoint))
{
isDelaunay = false;
currentPoint = it;
currentPoint_pos = idx;
break;
}
}
if (isDelaunay)
{
found = true;
}
}
// Insert current triangle
Triangle t = new Triangle(pointList);
//t.setVertices(*currentPoint, cuttingSeg.i1, cuttingSeg.i2);
t.setVertices(currentPoint, cuttingSeg.i1, cuttingSeg.i2);
t.makeDirectIfNeeded();
tbuffer.push_back(t);
// Recurse
//DelaunaySegment newCut1=new DelaunaySegment(cuttingSeg.i1, *currentPoint);
//DelaunaySegment newCut2=new DelaunaySegment(cuttingSeg.i2, *currentPoint);
DelaunaySegment newCut1 = new DelaunaySegment(cuttingSeg.i1, currentPoint);
DelaunaySegment newCut2 = new DelaunaySegment(cuttingSeg.i2, currentPoint);
//std_vector<int> set1=new std_vector<int>(inputPoints.begin(), currentPoint);
//std_vector<int> set2=new std_vector<int>(currentPoint+1, inputPoints.end());
std_vector <int> set1 = new std_vector <int>();
set1.assign(inputPoints.ToArray(), inputPoints.begin(), currentPoint_pos);
std_vector <int> set2 = new std_vector <int>();
set2.assign(inputPoints.ToArray(), currentPoint_pos + 1, inputPoints.end());
if (!set1.empty())
{
_recursiveTriangulatePolygon(newCut1, set1, tbuffer, pointList);
}
if (!set2.empty())
{
_recursiveTriangulatePolygon(newCut2, set2, tbuffer, pointList);
}
}
// *
// * 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);
}
