gp_Pnt getSectionElementChordlinePoint(const CCPACSWingComponentSegment& cs, const std::string& sectionElementUID, double xsi)
{
gp_Pnt chordlinePoint;
CCPACSWing& wing = cs.GetWing();
// find section element
const CCPACSWingSegment& segment = static_cast<const CCPACSWingSegment&>(wing.GetSegment(1));
if (sectionElementUID == segment.GetInnerSectionElementUID()) {
// convert into wing coordinate system
CTiglTransformation wingTrans = wing.GetTransformation();
chordlinePoint = wingTrans.Inverted().Transform(segment.GetChordPoint(0, xsi));
}
else {
int i;
for (i = 1; i <= wing.GetSegmentCount(); ++i) {
const CCPACSWingSegment& segment = static_cast<const CCPACSWingSegment&>(wing.GetSegment(i));
if (sectionElementUID == segment.GetOuterSectionElementUID()) {
// convert into wing coordinate system
CTiglTransformation wingTrans = wing.GetTransformation();
chordlinePoint = wingTrans.Inverted().Transform(segment.GetChordPoint(1, xsi));
break;
}
}
if (i > wing.GetSegmentCount()) {
throw CTiglError("Error in getSectionElementChordlinePoint: section element not found!");
}
}
return chordlinePoint;
}
// Build outer transformation matrix for the positioning
void CCPACSFuselagePositioning::BuildMatrix(void)
{
// Compose the transformation for the tip section reference point.
// The positioning transformation is basically a translation in two steps:
// 1. from the fuselage origin to the startPoint (= endPoint of previous positioning)
// 2. from the innerPoint to the endPoint with coordinates given
// in a "spherical" coordinate system (length, sweepAngle, dihedralAngle).
// The original section is neither rotated by sweepAngle nor by dihedralAngle.
// Calculate the cartesian translation components for step two from "spherical" input coordinates
CTiglTransformation tempTransformation;
tempTransformation.SetIdentity();
tempTransformation.AddRotationZ(-sweepangle);
tempTransformation.AddRotationX(dihedralangle);
gp_Pnt tempPnt = tempTransformation.Transform(gp_Pnt(0.0, length, 0.0));
// Setup transformation combining both steps
endTransformation.SetIdentity();
endTransformation.AddTranslation( startPoint.x + tempPnt.X() ,
startPoint.y + tempPnt.Y() ,
startPoint.z + tempPnt.Z() );
// calculate outer section point by transforming origin
tempPnt = endTransformation.Transform(gp_Pnt(0.0, 0.0, 0.0));
endPoint.x = tempPnt.X();
endPoint.y = tempPnt.Y();
endPoint.z = tempPnt.Z();
}
// Adds projection an yz plane by setting the x coordinate to 0
void CTiglTransformation::AddProjectionOnYZPlane(void)
{
// Matrix is:
//
// ( 0 0 0 0 )
// ( 0 1 0 0 )
// ( 0 0 1 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, 0.0);
PreMultiply(trans);
}
// Adds mirroring at yz plane
void CTiglTransformation::AddMirroringAtYZPlane(void)
{
// Matrix is:
//
// ( -1 0 0 0 )
// ( 0 1 0 0 )
// ( 0 0 1 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, -1.0);
PreMultiply(trans);
}
// Returns the positioning matrix for a given section index
CTiglTransformation CCPACSWingPositionings::GetPositioningTransformation(std::string sectionIndex)
{
Update();
CCPACSWingPositioningIterator iter = positionings.find(sectionIndex);
// check, if section has positioning definition, if not
// return Zero-Transformation
if (iter == positionings.end()){
CTiglTransformation zeroTrans;
zeroTrans.SetIdentity();
return zeroTrans;
}
return iter->second->GetOuterTransformation();
}
// Save a sequence of shapes in IGES Format
void CTiglExportIges::ExportShapes(const ListPNamedShape& shapes, const std::string& filename) const
{
IGESControl_Controller::Init();
if ( filename.empty()) {
LOG(ERROR) << "Error: Empty filename in ExportShapes.";
return;
}
ListPNamedShape::const_iterator it;
// scale all shapes to mm
ListPNamedShape shapeScaled;
for (it = shapes.begin(); it != shapes.end(); ++it) {
PNamedShape pshape = *it;
if (pshape) {
CTiglTransformation trafo;
trafo.AddScaling(1000,1000,1000);
PNamedShape pScaledShape(new CNamedShape(*pshape));
pScaledShape->SetShape(trafo.Transform(pshape->Shape()));
shapeScaled.push_back(pScaledShape);
}
}
ListPNamedShape list;
for (it = shapeScaled.begin(); it != shapeScaled.end(); ++it) {
ListPNamedShape templist = GroupFaces(*it, _groupMode);
for (ListPNamedShape::iterator it2 = templist.begin(); it2 != templist.end(); ++it2) {
list.push_back(*it2);
}
}
SetTranslationParameters();
IGESControl_Writer igesWriter("MM", 0);
igesWriter.Model()->ApplyStatic();
int level = 0;
for (it = list.begin(); it != list.end(); ++it) {
PNamedShape pshape = *it;
AddToIges(pshape, igesWriter, level++);
}
igesWriter.ComputeModel();
if (igesWriter.Write(const_cast<char*>(filename.c_str())) != Standard_True) {
throw CTiglError("Error: Export of shapes to IGES file failed in CCPACSImportExport::SaveIGES", TIGL_ERROR);
}
}
void CTiglTransformation::AddScaling(double sx, double sy, double sz)
{
// Matrix is:
//
// ( sx 0 0 0 )
// ( 0 sy 0 0 )
// ( 0 0 sz 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, sx);
trans.SetValue(1, 1, sy);
trans.SetValue(2, 2, sz);
PreMultiply(trans);
}
// Adds a translation to this transformation. Translation part
// is stored in the last column of the transformation matrix.
void CTiglTransformation::AddTranslation(double tx, double ty, double tz)
{
// Matrix is:
//
// ( 1 0 0 tx )
// ( 0 1 0 ty )
// ( 0 0 1 tz )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 3, tx);
trans.SetValue(1, 3, ty);
trans.SetValue(2, 3, tz);
PreMultiply(trans);
}
TopoDS_Wire CCPACSControlSurfaceDeviceAirfoil::GetWire(CTiglControlSurfaceBorderCoordinateSystem& coords)
{
CCPACSWingProfile& profile =_config->GetWingProfile(_airfoilUID);
TopoDS_Wire w = profile.GetWire();
// scale
CTiglTransformation scale;
scale.AddScaling(coords.getLe().Distance(coords.getTe()), 1, _scalZ);
// bring the wire into the coordinate system of
// the airfoil by swapping z with y
gp_Trsf trafo;
trafo.SetTransformation(gp_Ax3(gp_Pnt(0,0,0), gp_Vec(0,-1,0), gp_Vec(1,0,0)));
CTiglTransformation flipZY(trafo);
// put the airfoil to the correct place
CTiglTransformation position(coords.globalTransform());
// compute the total transform
CTiglTransformation total;
total.PreMultiply(scale);
total.PreMultiply(flipZY);
total.PreMultiply(position);
w = TopoDS::Wire(total.Transform(w));
return w;
}
void CTiglTransformation::AddRotationZ(double degreeZ)
{
double radianZ = DegreeToRadian(degreeZ);
double sinVal = sin(radianZ);
double cosVal = cos(radianZ);
// Matrix is:
//
// ( cosVal -sinVal 0 0 )
// ( sinVal cosVal 0 0 )
// ( 0 0 1 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, cosVal);
trans.SetValue(0, 1, -sinVal);
trans.SetValue(1, 0, sinVal);
trans.SetValue(1, 1, cosVal);
PreMultiply(trans);
}
void CTiglTransformation::AddRotationY(double degreeY)
{
double radianY = DegreeToRadian(degreeY);
double sinVal = sin(radianY);
double cosVal = cos(radianY);
// Matrix is:
//
// ( cosVal 0 sinVal 0 )
// ( 0 1 0 0 )
// (-sinVal 0 cosVal 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, cosVal);
trans.SetValue(0, 2, sinVal);
trans.SetValue(2, 0, -sinVal);
trans.SetValue(2, 2, cosVal);
PreMultiply(trans);
}
void CTiglTransformation::AddRotationX(double degreeX)
{
double radianX = DegreeToRadian(degreeX);
double sinVal = sin(radianX);
double cosVal = cos(radianX);
// Matrix is:
//
// ( 1 0 0 0 )
// ( 0 cosVal -sinVal 0 )
// ( 0 sinVal cosVal 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(1, 1, cosVal);
trans.SetValue(1, 2, -sinVal);
trans.SetValue(2, 1, sinVal);
trans.SetValue(2, 2, cosVal);
PreMultiply(trans);
}