std::vector<int> lstIndexs = bbGetInputLstIndexs();
if ( (lstIndexs.size()<=1) || (lstX.size()==0) || (lstX.size()!=lstY.size()) || (lstY.size()!=lstZ.size()) )
{
- printf("PG CreateMeshFromPoints::Process: List of points X Y Z and LstIndexes is not correct\n");
+ printf("Warning! CreateMeshFromPoints::Process: List of points X Y Z and LstIndexes is not correct\n");
bbSetOutputOut(NULL);
} else {
int ii,sizeSegment1,sizeSegment2;
iGeneral=iGeneral+sizeSegment1;
cells->InsertNextCell(triangleStrip);
} //for LstIndexs
+
+ int lastId1 = lstIndexs[0]-1;
+ int lastId2 = sizeLstX - 1;
+ int firstId2 = sizeLstX - lstIndexs[sizeLstIdexes - 1];
+ bool face1open = lstX[0] != lstX[lastId1] && lstY[0] != lstY[lastId1] && lstZ[0] != lstZ[lastId1];
+ bool face2open = lstX[firstId2] != lstX[lastId2] && lstY[firstId2] != lstY[lastId2] && lstZ[firstId2] != lstZ[lastId2];
- //false = Open
- //true = Close
- if(bbGetInputOpenClose()){
- CloseContourSides(lstIndexs, true);
- }
- else{
- CloseOpenContourSurface(lstIndexs);
+ if(bbGetInputCloseSurface())
+ {
+ //false = Open Contour
+ //true = Closed Contour
+ if(!face1open && !face2open)
+ {
+ CloseContourSides(lstIndexs, true);
+ }else{
+ CloseOpenContourSurface(lstIndexs);
+ }
}
-
+
// vtkPolyData *polydata = vtkPolyData::New();
if (polydata!=NULL) polydata->Delete();
polydata = vtkPolyData::New();
triangle = vtkTriangleFilter::New();
triangle->SetInputData( clean->GetOutput() );
triangle->Update();
- bbSetOutputOut( clean->GetOutput() );
+ bbSetOutputOut( triangle->GetOutput() );
+ // bbSetOutputOut( clean->GetOutput() );
}// if listXYZ size
- printf("CreateMeshFromPoints::Process: End\n");
+ //printf("PG CreateMeshFromPoints::Process: End\n");
}
+/**
+* Closes the sides of the contour
+* iterates in one way or the other, depending on the order of the points and calculated vectors.
+* uPointOrder: Points are order in a U shape
+* lstIndexs: number of points on each spline
+*/
void CreateMeshFromPoints::CloseContourSides(std::vector<int> lstIndexs, bool uPointOrder){
int sizeLstIdexes = lstIndexs.size();
int sizePoints = bbGetInputLstX().size();
- int firstIndex, end, centroidId, numPointsFace;
+ int firstIndex, end, centroidId, numPointsFace, contraryId;
int increment = uPointOrder?1:sizeLstIdexes;
- double centroid[3], currentPoint[3] = {};
+ double centroid[3];
for(int facesIdx = 0; facesIdx < 2; facesIdx++){
std::fill(std::begin(centroid), std::end(centroid), 0);
- if(facesIdx == 0){
+ if(facesIdx == 0)
+ {
firstIndex = 0;
numPointsFace = uPointOrder?lstIndexs[0]: sizeLstIdexes;
end = uPointOrder?firstIndex + numPointsFace:sizePoints - lstIndexs[sizeLstIdexes - 1] + 1;
- }
- else{
- firstIndex = uPointOrder?sizePoints - lstIndexs[sizeLstIdexes-1]:lstIndexs[0] - 1;
+ contraryId = sizePoints-1;
+ }else{
+ firstIndex = uPointOrder?sizePoints - lstIndexs[sizeLstIdexes-1]:lstIndexs[0]-1;
numPointsFace = uPointOrder?lstIndexs[sizeLstIdexes-1]:sizeLstIdexes;
end = uPointOrder?firstIndex + numPointsFace:sizePoints;
+ contraryId = 0;
}
- if(numPointsFace > 1){
- double lastPoint[3] = {};
- CalcCentroid(centroid, firstIndex, end, increment, numPointsFace);
- centroidId = points->InsertNextPoint(centroid[0], centroid[1], centroid[2]);
- vtkSmartPointer<vtkTriangleStrip> triangleStrip1 = vtkSmartPointer<vtkTriangleStrip>::New();
- triangleStrip1->GetPointIds()->SetNumberOfIds(numPointsFace*2+1);
- if(facesIdx == 0){
- int initial = firstIndex;
- int triangleIndex = 0;
- for(int index = initial; index < end; index+=increment){
- triangleStrip1->GetPointIds()->SetId(triangleIndex,index);
- if(index+increment >= end){
- triangleStrip1->GetPointIds()->SetId(triangleIndex+1,initial);
- triangleStrip1->GetPointIds()->SetId(triangleIndex+2,centroidId);
- }
- else{
+ if(numPointsFace > 1)
+ {
+ bool validCentroid = CalcValidCentroid(centroid, firstIndex, end, increment, numPointsFace);
+ if(validCentroid)
+ {
+ bool normalOrder = isPointingCorrectly(firstIndex, firstIndex+increment, centroid, contraryId);
+ centroidId = points->InsertNextPoint(centroid[0], centroid[1], centroid[2]);
+ vtkSmartPointer<vtkTriangleStrip> triangleStrip1 = vtkSmartPointer<vtkTriangleStrip>::New();
+ triangleStrip1->GetPointIds()->SetNumberOfIds(numPointsFace*2+2);
+ if( normalOrder )
+ {
+ int initial = firstIndex;
+ int triangleIndex = 0;
+ for(int index = initial; index < end; index+=increment){
+ triangleStrip1->GetPointIds()->SetId(triangleIndex,index);
triangleStrip1->GetPointIds()->SetId(triangleIndex+1,centroidId);
+ if(index+increment >= end){
+ triangleStrip1->GetPointIds()->SetId(triangleIndex+2,initial);
+ triangleStrip1->GetPointIds()->SetId(triangleIndex+3,centroidId);
+ }
+ triangleIndex+=2;
}
- triangleIndex+=2;
- }
- cells->InsertNextCell(triangleStrip1);
- }
- else{
- int initial = firstIndex-1;
- int triangleIndex = 0;
- int triangleStripStart = end-1;
- for(int index = triangleStripStart; index > initial ; index-=increment){
- triangleStrip1->GetPointIds()->SetId(triangleIndex,index);
- if(index-increment <= initial){
- triangleStrip1->GetPointIds()->SetId(triangleIndex+1,triangleStripStart);
- triangleStrip1->GetPointIds()->SetId(triangleIndex+2,centroidId);
- }
- else{
+ cells->InsertNextCell(triangleStrip1);
+ } else {
+ int initial = firstIndex-1;
+ int triangleIndex = 0;
+ int triangleStripStart = end-1;
+ for(int index = triangleStripStart; index > initial; index-=increment){
+ triangleStrip1->GetPointIds()->SetId(triangleIndex,index);
triangleStrip1->GetPointIds()->SetId(triangleIndex+1,centroidId);
+ if(index-increment <= initial){
+ triangleStrip1->GetPointIds()->SetId(triangleIndex+2,triangleStripStart);
+ triangleStrip1->GetPointIds()->SetId(triangleIndex+3,centroidId);
+ }
+ triangleIndex+=2;
}
- triangleIndex+=2;
+ cells->InsertNextCell(triangleStrip1);
}
- cells->InsertNextCell(triangleStrip1);
- }
- }
- }
+ }//if validCentroid
+ }//if numPointsFace
+ }//for facesIdx
}
-void CreateMeshFromPoints::CloseOpenContourSurface(std::vector<int> lstIndexs){
- int sizeLstIdexes = lstIndexs.size();
- int sizeLstX = bbGetInputLstX().size();
- bool linePointOrder = false;
+/**
+* Checks if the normal from firstPointId, secPointId and centroid points away
+* from the vector centroid to contrPointId.
+* Used to check that the order used to create the new polygons is correct.
+*/
+bool CreateMeshFromPoints::isPointingCorrectly( int firstPointId, int secPointId, double(¢roid)[3], int contrPointId) {
- if(linePointOrder){
- CloseContourSides(lstIndexs, false);
- CloseContourBottom(false);
+ double firstPoint[3], secPoint[3], contrPoint[3];
+ points->GetPoint(firstPointId, firstPoint);
+ points->GetPoint(secPointId, secPoint);
+
+ double firstVect[3], secVect[3], normal[3], contrVect[3];
+
+ vtkMath::Subtract(firstPoint, centroid, firstVect);
+ vtkMath::Subtract(secPoint, centroid, secVect);
+
+ points->GetPoint(contrPointId, contrPoint);
+ vtkMath::Subtract(contrPoint, centroid, contrVect);
+
+ vtkMath::Cross(firstVect, secVect, normal);
+ double dotCalc;
+ dotCalc = vtkMath::Dot(normal, contrVect);
+
+ return dotCalc>0;
+}
+
+/**
+* Checks if points on each side of the shapes represent a curve.
+*/
+bool CreateMeshFromPoints::CheckLinePointOrder(){
+ int sizePoints = bbGetInputLstX().size();
+ std::vector<int> lstIndexs = bbGetInputLstIndexs();
+ double point1[3], point2[3], point3[3];
+ double center[3];
+ double firstRadiusSum = 0;
+ double secondRadiusSum = 0;
+ for(int i = 0; i < lstIndexs[0] && lstIndexs[0] > 3; i+=3){
+ if(i+3 <= lstIndexs[0]){
+ points->GetPoint(i, point1);
+ points->GetPoint(i+1, point2);
+ points->GetPoint(i+2, point3);
+ firstRadiusSum += vtkMath::Solve3PointCircle(point1, point2, point3, center);
+ }
}
- else{
- CloseContourSides(lstIndexs, true);
- CloseContourBottom(true);
+
+ for(int i = 0; i < sizePoints && lstIndexs.size() > 3; i+=(lstIndexs[0]*3)){
+ if(i+(3*lstIndexs[0]) <= sizePoints){
+ points->GetPoint(i, point1);
+ points->GetPoint(i+lstIndexs[0], point2);
+ points->GetPoint(i+(2*lstIndexs[0]), point3);
+ secondRadiusSum += vtkMath::Solve3PointCircle(point1, point2, point3, center);
+ }
}
-
+
+ return firstRadiusSum > secondRadiusSum;
}
-void CreateMeshFromPoints::CalcCentroid(double(¢roid)[3], int start, int end, int increment, int numPoints){
- double currPoint[3] = {};
+/**
+* Closes an open contour
+* lstIndexs: number of points on each spline
+*/
+void CreateMeshFromPoints::CloseOpenContourSurface(std::vector<int> lstIndexs){
+ bool linePointOrder = CheckLinePointOrder();
+ CloseContourSides(lstIndexs, !linePointOrder);
+ CloseContourBottom(!linePointOrder);
+}
+
+/**
+* Calculates centroid and checks if points are collinear.
+* centroid: array to store calculation
+* start: start index of points to use
+* end: end index of points to use
+* increment: increment to be used in point iteration
+* numPoints: number of points used to calculate the centroid.
+* Returns a bool indicating the validity of the centroid calculated.
+* False = invalid centroid = all points are the same.
+*/
+bool CreateMeshFromPoints::CalcValidCentroid(double(¢roid)[3], int start, int end, int increment, int numPoints){
+ double currPoint[3] = {}, prevPoint[3] = {}, middlePoint[3] = {}, firstPoint[3] = {};
+ double vector1[3], vector2[3];
+ bool samePoint = true;
+ int splineMidPoint = numPoints/2;
+ bool collinear = true;
+
+ points->GetPoint(start, firstPoint);
+ points->GetPoint(splineMidPoint, middlePoint);
+ vtkMath::Subtract(middlePoint, firstPoint, vector1);
+
for(int i = start; i < end; i+=increment){
points->GetPoint(i, currPoint);
+ if(samePoint && i > start && (currPoint[0] != prevPoint[0] || currPoint[1] != prevPoint[1] || currPoint[2] != prevPoint[2])){
+ samePoint = false;
+ }
+
+ vtkMath::Subtract(currPoint, firstPoint, vector2);
+ double angle = vtkMath::AngleBetweenVectors(vector1, vector2);
+ if(angle > 0.0001 && collinear){
+ collinear = false;
+ }
+
centroid[0] += currPoint[0];
centroid[1] += currPoint[1];
centroid[2] += currPoint[2];
+ std::copy(std::begin(currPoint), std::end(currPoint), prevPoint);
}
+
centroid[0] /= numPoints;
centroid[1] /= numPoints;
centroid[2] /= numPoints;
+
+ return !samePoint && !collinear;
}
+/**
+* Closes the bottom of the given countour.
+* Should only be used when its an open contour.
+* uPointOrder: points are ordered in U shape
+*/
void CreateMeshFromPoints::CloseContourBottom(bool uPointOrder){
std::vector<int> lstIndexs = bbGetInputLstIndexs();
int sizeLstIdexes = lstIndexs.size();
// SET HERE THE DEFAULT INPUT/OUTPUT VALUES OF YOUR BOX
// Here we initialize the input 'In' to 0
// bbSetInputIn(0);
- bbSetInputOpenClose(false);
+ bbSetInputCloseSurface(false);
points = NULL;
cells = NULL;
polydata = NULL;
git://git.creatis.insa-lyon.fr / creaVtk.git / blobdiff