本文整理汇总了C++中Board2D::drawCircle方法的典型用法代码示例。如果您正苦于以下问题：C++ Board2D::drawCircle方法的具体用法？C++ Board2D::drawCircle怎么用？C++ Board2D::drawCircle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::drawCircle方法的2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: aComputer
int
main(int argc, char ** argv){
typedef Z2i::Point Point;
std::vector<Point> contour = PointListReader<Point>::getPointsFromFile("../Samples/contourS.sdp");
Board2D aBoard;
for (auto&& p :contour) {
aBoard << p;
}
aBoard.setPenColor(DGtal::Color::Red);
aBoard.setFillColor(DGtal::Color::Red);
aBoard.drawCircle(contour[30][0], contour[30][1],1);
unsigned int startIndex = 30;
typedef AlphaThickSegmentComputer< Z2i::Point > AlphaThickSegmentComputer2D;
AlphaThickSegmentComputer2D aComputer(5);
aComputer.init(contour.begin()+30);
while(aComputer.extendFront()){
}
aBoard << CustomStyle( aComputer.className(), new CustomColors( DGtal::Color::Blue, DGtal::Color::None ) );
aBoard << aComputer;
aBoard.saveEPS("resultTuto2.eps");
return 0;
}示例2: convexHull
/**
* Algorithms that computes the convex hull
* of a point set
*/
void convexHull()
{
//Digitization of a disk of radius 6
Ball2D<Z2i::Space> ball(Z2i::Point(0,0), 6);
Z2i::Domain domain(ball.getLowerBound(), ball.getUpperBound());
Z2i::DigitalSet pointSet(domain);
Shapes<Z2i::Domain>::euclideanShaper(pointSet, ball);
//! [Hull2D-Namespace]
using namespace functions::Hull2D;
//! [Hull2D-Namespace]
//! [Hull2D-Functor]
typedef InHalfPlaneBySimple3x3Matrix<Z2i::Point, DGtal::int64_t> Functor;
Functor functor;
//! [Hull2D-Functor]
{ //convex hull in counter-clockwise order
vector<Z2i::Point> res;
//! [Hull2D-StrictPredicateCCW]
typedef PredicateFromOrientationFunctor2<Functor, false, false> StrictPredicate;
StrictPredicate predicate( functor );
//! [Hull2D-StrictPredicateCCW]
//according to the last two template arguments, neither strictly negative values, nor zeros are accepted:
//the predicate returns 'true' only for strictly positive values returned by the underlying functor.
//! [Hull2D-AndrewAlgo]
andrewConvexHullAlgorithm( pointSet.begin(), pointSet.end(), back_inserter( res ), predicate );
//! [Hull2D-AndrewAlgo]
//![Hull2D-Caliper-computeBasic]
double th = DGtal::functions::Hull2D::computeHullThickness(res.begin(), res.end(), DGtal::functions::Hull2D::HorizontalVerticalThickness);
//![Hull2D-Caliper-computeBasic]
//![Hull2D-Caliper-computeAnti]
Z2i::Point antipodalP, antipodalQ, antipodalS;
th = DGtal::functions::Hull2D::computeHullThickness(res.begin(), res.end(), DGtal::functions::Hull2D::HorizontalVerticalThickness, antipodalP, antipodalQ, antipodalS);
//![Hull2D-Caliper-computeAnti]
trace.info() <<" ConvexHull HV thickness: " << th << std::endl;
//display
Board2D board;
drawPolygon( res.begin(), res.end(), board );
//![Hull2D-Caliper-display]
board.setPenColor(DGtal::Color::Red);
board.drawCircle( antipodalS[0], antipodalS[1], 0.2) ;
board.setPenColor(DGtal::Color::Blue);
board.drawCircle(antipodalP[0], antipodalP[1], 0.2);
board.drawCircle(antipodalQ[0], antipodalQ[1], 0.2);
board.drawLine(antipodalP[0], antipodalP[1], antipodalQ[0], antipodalQ[1]);
//![Hull2D-Caliper-display]
board.saveSVG( "ConvexHullCCW.svg" );
#ifdef WITH_CAIRO
board.saveCairo("ConvexHullCCW.png", Board2D::CairoPNG);
#endif
}
{ //convex hull in counter-clockwise order with all the points lying on the edges
vector<Z2i::Point> res;
//! [Hull2D-LargePredicateCCW]
typedef PredicateFromOrientationFunctor2<Functor, false, true> LargePredicate;
LargePredicate predicate( functor );
//! [Hull2D-LargePredicateCCW]
//according to the last template argument, zeros are accepted so that
//the predicate returns 'true' for all the positive values returned by the underlying functor.
//andrew algorithm
andrewConvexHullAlgorithm( pointSet.begin(), pointSet.end(), back_inserter( res ), predicate );
//display
Board2D board;
drawPolygon( res.begin(), res.end(), board );
board.saveSVG( "ConvexHullCCWWithPointsOnEdges.svg" );
#ifdef WITH_CAIRO
board.saveCairo("ConvexHullCCWWithPointsOnEdges.png", Board2D::CairoPNG);
#endif
}
{ //convex hull in clockwise order
vector<Z2i::Point> res;
//! [Hull2D-StrictPredicateCW]
typedef PredicateFromOrientationFunctor2<Functor, true, false> StrictPredicate;
StrictPredicate predicate( functor );
//! [Hull2D-StrictPredicateCW]
//according to the last two argument template,
//the predicate returns 'true' only for strictly negative values returned by the underlying functor.
//andrew algorithm
andrewConvexHullAlgorithm( pointSet.begin(), pointSet.end(), back_inserter( res ), predicate );
//display
//.........这里部分代码省略.........