本文整理汇总了C++中Board2D::drawArrow方法的典型用法代码示例。如果您正苦于以下问题：C++ Board2D::drawArrow方法的具体用法？C++ Board2D::drawArrow怎么用？C++ Board2D::drawArrow使用的例子？那么, 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Board2D的用法示例。
在下文中一共展示了Board2D::drawArrow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: exampleUpdate
/**
* @brief Function showing how a DSS can be extended and retracted.
*/
void exampleUpdate()
{
trace.beginBlock ( "DSS update" );
using namespace Z2i;
//Construction --------------------------------------------------
//! [ArithmeticalDSSUpdateInit]
Point M(11, 7);
NaiveDSS8<Integer> S( 5, 8, //slope
Point(0,0), Point(10,6), //ending points
Point(0,0), Point(8,5), //upper points
Point(3,1), Point(3,1) //lower points
);
//! [ArithmeticalDSSUpdateInit]
//this segment should be valid:
if (!S.isValid()) throw std::exception();
// Store a copy before any operation
NaiveDSS8<Integer> copyOfS = S;
trace.info() << S << std::endl;
//Display ------------------------------------------------------
{
Board2D board;
// Draw the grid
Domain domain( Point(0,0), M );
board << SetMode(domain.className(), "Grid")
<< domain;
// Draw the points of the DSS and its bounding box
board << SetMode("PointVector", "Both");
board << SetMode(S.className(), "Points")
<< S
<< SetMode(S.className(), "BoundingBox")
<< S;
// Draw the orthonormal base
board.drawArrow(0.0, 0.0, 1.0, 0.0);
board.drawArrow(0.0, 0.0, 0.0, 1.0);
// Draw M
board << SetMode(M.className(), "Both")
<< CustomStyle( M.className(), new CustomColors( Color(255,0,0), Color(192, 0, 0)) )
<< M;
// Save
board.saveSVG("NaiveDSS8ExtInit.svg");
#ifdef WITH_CAIRO
board.saveCairo("NaiveDSS8ExtInit.png", Board2D::CairoPNG);
#endif
}
// Extension -----------------------------------------------------
//! [ArithmeticalDSSUpdateExtension]
bool resExtention = S.extendFront( M );
//! [ArithmeticalDSSUpdateExtension]
//this segment should be extended:
if (!resExtention) throw std::exception();
trace.info() << S << std::endl;
//Display ------------------------------------------------------
{
Board2D board;
// Draw the grid
Domain domain( Point(0,0), M );
board << SetMode(domain.className(), "Grid")
<< domain;
// Draw the points of the DSS and its bounding box
board << SetMode("PointVector", "Both");
board << SetMode(S.className(), "Points")
<< S
<< SetMode(S.className(), "BoundingBox")
<< S;
// Draw the orthonormal base
board.drawArrow(0.0, 0.0, 1.0, 0.0);
board.drawArrow(0.0, 0.0, 0.0, 1.0);
// Save
board.saveSVG("NaiveDSS8ExtDone.svg");
#ifdef WITH_CAIRO
board.saveCairo("NaiveDSS8ExtDone.png", Board2D::CairoPNG);
#endif
}
// Retraction ----------------------------------------------------
//! [ArithmeticalDSSUpdateRetraction]
bool resRetraction = S.retractFront();
//! [ArithmeticalDSSUpdateRetraction]
//this segment should be retracted:
if (!resRetraction) throw std::exception();
trace.info() << S << std::endl;
//.........这里部分代码省略.........