phasicFlow/utilities/Utilities/geometryPhasicFlow/cylinderWall/cylinderWall.cpp

120 lines
2.3 KiB
C++

#include "cylinderWall.hpp"
#include "Vectors.hpp"
#include "line.hpp"
bool pFlow::cylinderWall::readCylinderWall(const dictionary& dict)
{
auto p1 = dict.getVal<realx3>("p1");
auto p2 = dict.getVal<realx3>("p2");
auto radius1 = dict.getVal<real>("radius1");
auto radius2 = dict.getVal<real>("radius2") ;
int32 resolution = dict.getValOrSet("resolution", 24 );
int32 zResolution = dict.getValOrSet("zResolution", 1);
triangles_.clear();
triangles_.reserve(2*resolution*zResolution);
line cylAxis(p1, p2);
auto lp1 = p1;
auto dt = static_cast<real>(1.0/zResolution);
real t = 0;
for(int32 i=0; i<zResolution; i++)
{
t += dt;
auto lp2 = cylAxis.point(t);
if(!createCylinder(lp1, lp2, radius1, radius2, resolution))
return false;
lp1 = lp2;
}
return true;
}
bool pFlow::cylinderWall::createCylinder(
const realx3& p1,
const realx3& p2,
real rad1,
real rad2,
int32 numDiv)
{
zAxis zAx(p1, p2);
real L = zAx.length();
realx3Vector r1P("r1P",numDiv + 1), r2P("r1P",numDiv + 1);
real dTheta = 2 * Pi / numDiv;
real theta = 0;
for (int32 i = 0; i < numDiv + 1; i++)
{
r1P[i] = realx3(rad1*cos(theta), rad1*sin(theta), 0);
r2P[i] = realx3(rad2*cos(theta), rad2*sin(theta), L);
theta += dTheta;
}
// transferring back all points to the original axis of cylinder
for (int32 i = 0; i < numDiv + 1; i++)
{
r1P[i] = zAx.transferBackZ(r1P[i]);
r2P[i] = zAx.transferBackZ(r2P[i]);
}
realx3 norm;
for (int32 i = 0; i < numDiv; i++)
{
realx3 p1 = r1P[i];
realx3 p2 = r2P[i];
realx3 p3 = r2P[i + 1];
realx3 p4 = r1P[i + 1];
if(checkNormalVec(p1, p2, p3, norm))
{
triangles_.push_back(realx3x3(p1, p2, p3));
}
else
{
fatalErrorInFunction<<
"planner input triangle: "<<realx3x3(p1, p2, p3)<<endl;
return false;
}
if (checkNormalVec(p3, p4, p1, norm))
{
triangles_.push_back(realx3x3(p3, p4, p1));
}
else
{
fatalErrorInFunction<<
"planner input triangle: "<<realx3x3(p3, p4, p1)<<endl;
return false;
}
}
return true;
}
pFlow::cylinderWall::cylinderWall()
{}
pFlow::cylinderWall::cylinderWall(
const dictionary& dict
)
:
Wall(dict)
{
if( !readCylinderWall(dict) )
{
fatalExit;
}
}