void SimpleDraw::DrawCircle( const Vec3d& center, double radius, const Vec4d& c, const Vec3d& n, float lineWidth )
{
Vec3d startV(0,0,0);
// Find orthogonal start vector
if ((abs(n.y()) >= 0.9f * abs(n.x())) &&
abs(n.z()) >= 0.9f * abs(n.x())) startV = Vec3d(0.0f, -n.z(), n.y());
else if ( abs(n.x()) >= 0.9f * abs(n.y()) &&
abs(n.z()) >= 0.9f * abs(n.y()) ) startV = Vec3d(-n.z(), 0.0f, n.x());
else startV = Vec3d(-n.y(), n.x(), 0.0f);
int segCount = 20;
double theta = 2.0 * M_PI / segCount;
glDisable(GL_LIGHTING);
glLineWidth(lineWidth);
glColor4dv(c);
glBegin(GL_LINE_LOOP);
for(int i = 0; i < segCount; i++){
glVertex3dv(center + startV * radius );
ROTATE_VEC(startV, theta, n);
}
glEnd();
glEnable(GL_LIGHTING);
}
void TradeNet::calculatePos(const sf::Vector2f& topLeft, int dx, int h, int dy)
{
std::cout << "VertexLength: " << _vertex.size() << "\n";
assert(_vertex.empty());
int x, y;
int width = _pBezirk->getWidth();
for( auto node : _tradeRouts )
{
x = node.second.front().start % width;
y = node.second.front().start / width;
sf::Vertex startV(topLeft + sf::Vector2f(x * dx, y * 2.f * h + (x % 2 == 0 ? 0.f : dy)), _color );
for(auto e : node.second)
{
if(e.idStart >= e.idEnd) // only draw one direction
continue;
_vertex.push_back(startV);
x = e.end % width;
y = e.end / width;
_vertex.push_back(sf::Vertex(topLeft + sf::Vector2f(x * dx, y * 2.f * h + (x % 2 == 0 ? 0.f : dy)), _color ));
}
}
_change = false;
}