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CGAL 6.1.3 - 2D Envelopes
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CGAL 6.1.3 - 2D Envelopes
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An edge record in an envelope diagram, which represents a continuous portion of the \( x\)-axis. It is associated with a (possibly empty) set of curves that induce the envelope over this portion of the \( x\)-axis. Note that all curves in this set overlap over the interval represented by the edge.
Types | |
| typedef unspecified_type | Size |
| the size type (convertible to size_t). | |
| typedef unspecified_type | Vertex |
| the corresponding diagram-vertex type. | |
| typedef unspecified_type | X_monotone_curve_2 |
| the \( x\)-monotone curve type. | |
Creation | |
| EnvelopeDiagramEdge () | |
| default constructor. | |
| EnvelopeDiagramEdge (const EnvelopeDiagramEdge &other) | |
| copy constructor. | |
Access Functions | |
| Size | number_of_curves () const |
| returns the number of \( x\)-monotone curves associated with e. | |
| bool | is_empty () const |
| returns whether e represents an empty interval - namely, whether the set of \( x\)-monotone curves associated with it is empty. | |
| const X_monotone_curve_2 & | curve () const |
| returns a representative \( x\)-monotone curve associated with e. | |
| Curve_const_iterator | curves_begin () const |
| returns an iterator for the first \( x\)-monotone curve associated with e. | |
| Curve_const_iterator | curves_end () const |
| returns a past-the-end iterator for the \( x\)-monotone curves associated with e. | |
| Vertex_const_handle | left () const |
| returns the vertex lying to e's left. | |
| Vertex_const_handle | right () const |
| returns the vertex lying to e's right. | |
Modifiers | |
| void | clear_curves () |
| clears the set of curves associated with e. | |
| void | add_curve (const X_monotone_curve_2 &cv) |
| adds the \( x\)-monotone curve cv to the set of curves associated with e. | |
| void | add_curves (Curve_const_iterator begin, Curve_const_iterator end) |
| adds the given range of \( x\)-monotone curves to the set of curves associated with e. | |
| void | set_left (Vertex_const_handle v) |
| sets the vertex lying to the left of e to be v. | |
| void | set_right (Vertex_const_handle v) |
| sets the vertex lying to the right of e to be v. | |
| const X_monotone_curve_2 & EnvelopeDiagramEdge::curve | ( | ) | const |
returns a representative \( x\)-monotone curve associated with e.
| Vertex_const_handle EnvelopeDiagramEdge::left | ( | ) | const |
returns the vertex lying to e's left.
| Vertex_const_handle EnvelopeDiagramEdge::right | ( | ) | const |
returns the vertex lying to e's right.
1.17.0 #include <Concepts/EnvelopeDiagramEdge.h>
An edge record in an envelope diagram, which represents a continuous portion of the \( x\)-axis. It is associated with a (possibly empty) set of curves that induce the envelope over this portion of the \( x\)-axis. Note that all curves in this set overlap over the interval represented by the edge.
Types | |
| typedef unspecified_type | Size |
| the size type (convertible to size_t). | |
| typedef unspecified_type | Vertex |
| the corresponding diagram-vertex type. | |
| typedef unspecified_type | X_monotone_curve_2 |
| the \( x\)-monotone curve type. | |
Creation | |
| EnvelopeDiagramEdge () | |
| default constructor. | |
| EnvelopeDiagramEdge (const EnvelopeDiagramEdge &other) | |
| copy constructor. | |
Access Functions | |
| Size | number_of_curves () const |
| returns the number of \( x\)-monotone curves associated with e. | |
| bool | is_empty () const |
| returns whether e represents an empty interval - namely, whether the set of \( x\)-monotone curves associated with it is empty. | |
| const X_monotone_curve_2 & | curve () const |
| returns a representative \( x\)-monotone curve associated with e. | |
| Curve_const_iterator | curves_begin () const |
| returns an iterator for the first \( x\)-monotone curve associated with e. | |
| Curve_const_iterator | curves_end () const |
| returns a past-the-end iterator for the \( x\)-monotone curves associated with e. | |
| Vertex_const_handle | left () const |
| returns the vertex lying to e's left. | |
| Vertex_const_handle | right () const |
| returns the vertex lying to e's right. | |
Modifiers | |
| void | clear_curves () |
| clears the set of curves associated with e. | |
| void | add_curve (const X_monotone_curve_2 &cv) |
| adds the \( x\)-monotone curve cv to the set of curves associated with e. | |
| void | add_curves (Curve_const_iterator begin, Curve_const_iterator end) |
| adds the given range of \( x\)-monotone curves to the set of curves associated with e. | |
| void | set_left (Vertex_const_handle v) |
| sets the vertex lying to the left of e to be v. | |
| void | set_right (Vertex_const_handle v) |
| sets the vertex lying to the right of e to be v. | |
| const X_monotone_curve_2 & EnvelopeDiagramEdge::curve | ( | ) | const |
returns a representative \( x\)-monotone curve associated with e.
| Vertex_const_handle EnvelopeDiagramEdge::left | ( | ) | const |
returns the vertex lying to e's left.
| Vertex_const_handle EnvelopeDiagramEdge::right | ( | ) | const |
returns the vertex lying to e's right.
1.17.0