本文整理汇总了C++中base::Vector3d::ProjectToLine方法的典型用法代码示例。如果您正苦于以下问题：C++ Vector3d::ProjectToLine方法的具体用法？C++ Vector3d::ProjectToLine怎么用？C++ Vector3d::ProjectToLine使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类base::Vector3d的用法示例。
在下文中一共展示了Vector3d::ProjectToLine方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: drawSectionLine
void QGIViewPart::drawSectionLine(TechDraw::DrawViewSection* viewSection, bool b)
{
TechDraw::DrawViewPart *viewPart = static_cast<TechDraw::DrawViewPart *>(getViewObject());
if (!viewPart ||
!viewSection) {
return;
}
if (b) {
QGISectionLine* sectionLine = new QGISectionLine();
addToGroup(sectionLine);
sectionLine->setSymbol(const_cast<char*>(viewSection->SectionSymbol.getValue()));
//TODO: handle oblique section lines?
//find smallest internal angle(normalDir,get?Dir()) and use -1*get?Dir() +/- angle
//Base::Vector3d normalDir = viewSection->SectionNormal.getValue();
Base::Vector3d arrowDir(0,1,0); //for drawing only, not geom
Base::Vector3d lineDir(1,0,0);
bool horiz = false;
if (viewSection->SectionDirection.isValue("Right")) {
arrowDir = Base::Vector3d(1,0,0);
lineDir = Base::Vector3d(0,1,0);
} else if (viewSection->SectionDirection.isValue("Left")) {
arrowDir = Base::Vector3d(-1,0,0);
lineDir = Base::Vector3d(0,-1,0);
} else if (viewSection->SectionDirection.isValue("Up")) {
arrowDir = Base::Vector3d(0,1,0);
lineDir = Base::Vector3d(1,0,0);
horiz = true;
} else if (viewSection->SectionDirection.isValue("Down")) {
arrowDir = Base::Vector3d(0,-1,0);
lineDir = Base::Vector3d(-1,0,0);
horiz = true;
}
sectionLine->setDirection(arrowDir.x,arrowDir.y);
Base::Vector3d org = viewSection->SectionOrigin.getValue();
double scale = viewPart->Scale.getValue();
Base::Vector3d pOrg = scale * viewPart->projectPoint(org);
//pOrg.y = -1 * pOrg.y;
//now project pOrg onto arrowDir
Base::Vector3d displace;
displace.ProjectToLine(pOrg, arrowDir);
Base::Vector3d offset = pOrg + displace;
sectionLine->setPos(offset.x,offset.y);
double sectionSpan;
double sectionFudge = 10.0;
double xVal, yVal;
if (horiz) {
sectionSpan = m_border->rect().width() + sectionFudge;
xVal = sectionSpan / 2.0;
yVal = 0.0;
} else {
sectionSpan = (m_border->rect().height() - m_label->boundingRect().height()) + sectionFudge;
xVal = 0.0;
yVal = sectionSpan / 2.0;
}
sectionLine->setBounds(-xVal,-yVal,xVal,yVal);
sectionLine->setWidth(viewPart->LineWidth.getValue()); //TODO: add fudge to make sectionLine thinner than reg lines?
sectionLine->setFont(m_font,6.0);
sectionLine->setZValue(ZVALUE::SECTIONLINE);
sectionLine->draw();
}
}