Slic3r::InfillPolylineClipper Class Reference

Inheritance diagram for Slic3r::InfillPolylineClipper:

Collaboration diagram for Slic3r::InfillPolylineClipper:

Public Member Functions
	InfillPolylineClipper (const BoundingBox bbox, const double scale_out)
void	add_point (const Vec2d &pt)
Points &&	result ()
bool	clips () const override
void	reserve (size_t n)
const Point	scaled (const Vec2d &fpt) const

Protected Attributes
Points	m_out

Private Types
enum class	Side { Left = 1 , Right = 2 , Top = 4 , Bottom = 8 }

Private Member Functions
int	sides (const Point &p) const

Private Attributes
BoundingBox	m_bbox
int	m_sides_prev
int	m_sides_this
double	m_scale_out

Detailed Description

Member Enumeration Documentation

Side

enum class Slic3r::InfillPolylineClipper::Side

strongprivate

Enumerator
Left
Right
Top
Bottom

                    {
        Left   = 1,
        Right  = 2,
        Top    = 4,
        Bottom = 8
    };

Constructor & Destructor Documentation

InfillPolylineClipper()

Slic3r::InfillPolylineClipper::InfillPolylineClipper ( const BoundingBox bbox, const double scale_out )

inline

: InfillPolylineOutput(scale_out), m_bbox(bbox) {}

References Slic3r::InfillPolylineOutput::InfillPolylineOutput(), and m_bbox.

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Member Function Documentation

add_point()

void Slic3r::InfillPolylineClipper::add_point

(

const Vec2d &

pt

)

{
    const Point pt{ this->scaled(fpt) };
 
    if (m_out.size() < 2) {
        // Collect the two first points and their status.
        (m_out.empty() ? m_sides_prev : m_sides_this) = sides(pt);
        m_out.emplace_back(pt);
    } else {
        // Classify the last inserted point, possibly remove it.
        int sides_next = sides(pt);
        if (// This point is inside. Take it.
            m_sides_this == 0 ||
            // Either this point is outside and previous or next is inside, or
            // the edge possibly cuts corner of the bounding box.
            (m_sides_prev & m_sides_this & sides_next) == 0) {
            // Keep the last point.
            m_sides_prev = m_sides_this;
        } else {
            // All the three points (this, prev, next) are outside at the same side.
            // Ignore the last point.
            m_out.pop_back();
        }
        // And save the current point.
        m_out.emplace_back(pt);
        m_sides_this = sides_next;
    }
}

References Slic3r::InfillPolylineOutput::m_out, m_sides_prev, m_sides_this, Slic3r::InfillPolylineOutput::scaled(), and sides().

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clips()

bool Slic3r::InfillPolylineClipper::clips ( ) const

inlineoverridevirtual

Reimplemented from Slic3r::InfillPolylineOutput.

{ return true; }

reserve()

void Slic3r::InfillPolylineOutput::reserve ( size_t n )

inlineinherited

{ m_out.reserve(n); }

References m_out.

result()

Points && Slic3r::InfillPolylineClipper::result ( )

inline

{ return std::move(m_out); }

References Slic3r::InfillPolylineOutput::m_out.

Referenced by Slic3r::FillPlanePath::_fill_surface_single().

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scaled()

const Point Slic3r::InfillPolylineOutput::scaled ( const Vec2d & fpt ) const

inlineinherited

{ return { coord_t(floor(fpt.x() * m_scale_out + 0.5)), coord_t(floor(fpt.y() * m_scale_out + 0.5)) }; }

References m_scale_out.

Referenced by Slic3r::InfillPolylineClipper::add_point(), and add_point().

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sides()

int Slic3r::InfillPolylineClipper::sides ( const Point & p ) const

inlineprivate

                                    {
        return int(p.x() < m_bbox.min.x()) * int(Side::Left) +
               int(p.x() > m_bbox.max.x()) * int(Side::Right) +
               int(p.y() < m_bbox.min.y()) * int(Side::Bottom) +
               int(p.y() > m_bbox.max.y()) * int(Side::Top);
    };

References Bottom, Left, m_bbox, Right, and Top.

Referenced by add_point().

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Member Data Documentation

m_bbox

BoundingBox Slic3r::InfillPolylineClipper::m_bbox

private

Referenced by InfillPolylineClipper(), and sides().

m_out

Points Slic3r::InfillPolylineOutput::m_out

protectedinherited

Referenced by Slic3r::InfillPolylineClipper::add_point(), add_point(), reserve(), Slic3r::InfillPolylineClipper::result(), and result().

m_scale_out

double Slic3r::InfillPolylineOutput::m_scale_out

privateinherited

Referenced by InfillPolylineOutput(), and scaled().

m_sides_prev

int Slic3r::InfillPolylineClipper::m_sides_prev

private

Referenced by add_point().

m_sides_this

int Slic3r::InfillPolylineClipper::m_sides_this

private

Referenced by add_point().

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The documentation for this class was generated from the following file:

• /home/runner/work/OrcaSlicer/OrcaSlicer/src/libslic3r/Fill/FillPlanePath.cpp