C++ (Cpp) LineSegment2d示例

示例#1

文件： intersection.cpp 项目： realisim/realisim

//------------------------------------------------------------------------------
Intersection2d intersect( const Rectangle& r1, const Rectangle& r2 )
{
	Intersection2d r;
  
	if( intersects( r1, r2 ) )
  {
  	r.add( intersect( LineSegment2d( r1.bottomLeft(), r1.topLeft() ), r2 ) );
    r.add( intersect( LineSegment2d( r1.topLeft(), r1.topRight() ), r2 ) );
    r.add( intersect( LineSegment2d( r1.topRight(), r1.bottomRight() ), r2 ) );
    r.add( intersect( LineSegment2d( r1.bottomRight(), r1.bottomLeft() ), r2 ) );
  }  
  return r;
}

示例#2

文件： intersection.cpp 项目： realisim/realisim

//------------------------------------------------------------------------------
Intersection2d intersect( const Circle& c, const Rectangle& r)
{
	Intersection2d result;  
//printf("bottomLeft %f, %f\n", r.bottomLeft().x(), r.bottomLeft().y() );
//printf("topLeft %f, %f\n", r.topLeft().x(), r.topLeft().y() );
//printf("topRight %f, %f\n", r.topRight().x(), r.topRight().y() );
//printf("bottomRight %f, %f\n", r.bottomRight().x(), r.bottomRight().y() );
  result.add( intersect( c, LineSegment2d( r.bottomLeft(), r.topLeft() ) ) );
  result.add( intersect( c, LineSegment2d( r.topLeft(), r.topRight() ) ) );
  result.add( intersect( c, LineSegment2d( r.topRight(), r.bottomRight() ) ) );
  result.add( intersect( c, LineSegment2d( r.bottomRight(), r.bottomLeft() ) ) );
  return result;
}

示例#3

文件： Circle.hpp 项目： ianmackenzie/cpp-opensolid-core

 inline
 LineSegment2d
 Circle2d::projectedOnto(const Axis2d& axis) const {
     Point2d projectedCenter = centerPoint().projectedOnto(axis);
     Vector2d offset = radius() * axis.directionVector();
     return LineSegment2d(projectedCenter - offset, projectedCenter + offset);
 }

示例#4

文件： Triangle.hpp 项目： ianmackenzie/cpp-opensolid-core

 inline
 LineSegment2d
 Triangle2d::edge(int oppositeIndex) const {
     assert(oppositeIndex >= 0 && oppositeIndex < 3);
     return LineSegment2d(
         vertex((oppositeIndex + 2) % 3),
         vertex((oppositeIndex + 1) % 3),
         handedness()
     );
 }

示例#5

文件： Javelin.cpp 项目： bmezhibovskiy/FunWithVectors

Javelin::Javelin(Vector3d initialPosition, Vector3d initialDirection, double power) {
	
	PhysicsModule* physics = new PhysicsModule(this, initialPosition);
	Vector3d velocity = initialDirection.normalized() * power;
	physics->velocity = velocity;
	addModule(physics);

	GraphicsModule* graphics = new GraphicsModule(this);
	double size = 0.02;
	graphics->objectLines.push_back(LineSegment2d(-size, 0, size, 0));
	addModule(graphics);
}