eVision.EPolygon Class Reference

Represents a polygon. The number of vertices is arbitrary. A EPolygon could be closed (last and first point connected) or open (like a polyline shape). More...

Inheritance diagram for eVision.EPolygon:

Collaboration diagram for eVision.EPolygon:

Public Member Functions
	EPolygon ()
	Constructs a EPolygon.
	EPolygon (eVision.EPolygon other)
	Constructs a EPolygon.
	EPolygon (eVision.EPoint[] vertices, bool closed)
	Constructs a EPolygon.
	EPolygon (eVision.EPoint[] vertices)
	Constructs a EPolygon.
void	CopyTo (eVision.EPolygon other)
	Copies the content of this object to the other one.
void	AppendVertex (eVision.EPoint pt)
	Appends a polygon vertex after the last.
void	InsertVertex (int index, eVision.EPoint pt)
	Inserts a vertex before the given index.
void	RemoveVertex (int index)
	Removes vertex at the given index.
void	SetVertex (int index, eVision.EPoint pt)
	Sets a polygon vertex.
eVision.EPoint	GetVertex (int index)
	Gets a polygon vertex.
bool	IsValid ()
	Returns true if the polygon is valid. A valid polygon has at least 2 (when open) or 3 (when closed) distinct and valid vertices and no duplicate points.
float	GetEdgeLength (int index)
	Length of an edge.
float	GetEdgeAngle (int index)
	Angle of the edge with respect to the X-axis.
eVision.ELine	GetEdge (int index)
	Edge of the polygon as a ELine object.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX, float panY)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX, float zoomY)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, eVision.EFrame frame)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, float zoomX, float zoomY, float panX, float panY)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, float zoomX, float zoomY, float panX)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, float zoomX, float zoomY)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y, float zoomX)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
eVision.EEditionMode	AddVertexAtDisplayPosition (int x, int y)
	Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.
void	RemoveVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX, float panY)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX, float zoomY)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, eVision.EFrame frame, float zoomX)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, eVision.EFrame frame)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, float zoomX, float zoomY, float panX, float panY)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, float zoomX, float zoomY, float panX)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, float zoomX, float zoomY)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y, float zoomX)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition (int x, int y)
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
void	RemoveVertexAtDisplayPosition ()
	Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.
Public Member Functions inherited from eVision.EShape
void	Load (string path)
	Load the EShape configuration. The given ESerializer must have been created for reading.
void	Load (eVision.ESerializer serializer)
	Load the EShape configuration. The given ESerializer must have been created for reading.
void	Save (string path)
	Save the EShape configuration. The given ESerializer must have been created for writing.
void	Save (eVision.ESerializer serializer)
	Save the EShape configuration. The given ESerializer must have been created for writing.
void	Draw (eVision.EDrawAdapter drawAdapter, float zoomX, float zoomY, float panX, float panY, bool drawDiagonals)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, float zoomX, float zoomY, float panX, float panY)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, float zoomX, float zoomY, float panX)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, float zoomX, float zoomY)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, float zoomX)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, eVision.EFrame frame, float zoomX, float zoomY, float panX, float panY, bool drawDiagonals)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, eVision.EFrame frame, float zoomX, float zoomY, float panX, float panY)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, eVision.EFrame frame, float zoomX, float zoomY, float panX)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, eVision.EFrame frame, float zoomX, float zoomY)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, eVision.EFrame frame, float zoomX)
	Draws the EShape shape.
void	Draw (eVision.EDrawAdapter drawAdapter, eVision.EFrame frame)
	Draws the EShape shape.
eVision.EEditionMode	HitTest (int x, int y, float zoomX, float zoomY, float panX, float panY)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, float zoomX, float zoomY, float panX)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, float zoomX, float zoomY)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, float zoomX)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX, float panY)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, eVision.EFrame frame, float zoomX, float zoomY)
	Detects if the cursor is placed over one of the dragging handles.
eVision.EEditionMode	HitTest (int x, int y, eVision.EFrame frame, float zoomX)
	Detects if the cursor is placed over one of the dragging handles.
void	Drag (int x, int y, float zoomX, float zoomY, float panX, float panY)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, float zoomX, float zoomY, float panX)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, float zoomX, float zoomY)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, float zoomX)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX, float panY)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, eVision.EFrame frame, float zoomX, float zoomY, float panX)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, eVision.EFrame frame, float zoomX, float zoomY)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, eVision.EFrame frame, float zoomX)
	Moves the specified handle to a new position and updates all placement parameters of the region.
void	Drag (int x, int y, eVision.EFrame frame)
	Moves the specified handle to a new position and updates all placement parameters of the region.
eVision.EFrame	ToFrame (bool useAngle, eVision.EFrameScaling frameScaling)
	Converts the shape to a frame.
eVision.EFrame	ToFrame (bool useAngle, eVision.EFrameScaling frameScaling, eVision.EFrame shapeFrame)
	Converts the shape to a frame.

Properties
bool	IsClosed [get, set]
	The polygon close attribute.
int	NumVertices [get]
	Returns the number of polygon's vertices.
int	NumEdges [get]
	Returns the number of polygon's edges (or sides). Depends on the EPolygon.IsClosed status.
eVision.EPoint[]	Vertices [get]
	Returns the list of polygon vertices.
float	Length [get]
	Returns the length (perimeter) of the polygon.
float	Area [get]
	Returns the area of the polygon.
eVision.EPoint	Center [get]
	The center of the polygon (average position of all the vertices).
override eVision.EEditionMode	AvailableEditionModes [get]
	Available edition modes for the shape.
override string	Description [get]
	Textual description of the shape and its parameters.
Properties inherited from eVision.EShape
eVision.EEditionMode	EditionMode [get, set]
	Current edition mode for the shape. Default: EEditionMode_None.
eVision.EEditionMode	AvailableEditionModes [get]
	Available edition modes for the shape.
string	Description [get]
	Textual description of the shape and its parameters.

Detailed Description

Represents a polygon. The number of vertices is arbitrary. A EPolygon could be closed (last and first point connected) or open (like a polyline shape).

License(s): BasicTypes

Constructor & Destructor Documentation

EPolygon() [1/4]

eVision.EPolygon.EPolygon

(

)

Constructs a EPolygon.

EPolygon() [2/4]

eVision.EPolygon.EPolygon

(

eVision.EPolygon

other

)

Constructs a EPolygon.

Parameters

other

Reference to the EPolygon used for the initialization.

EPolygon() [3/4]

eVision.EPolygon.EPolygon	(	eVision.EPoint[]	vertices,
		bool	closed )

Constructs a EPolygon.

Parameters

vertices	A vector of at least 3 points.
closed	An optional parameter to set the closed properties. When closed, an edge exists between the last and first points of the polygon. By default, created polygons are closed.

EPolygon() [4/4]

eVision.EPolygon.EPolygon

(

eVision.EPoint[]

vertices

)

Constructs a EPolygon.

Parameters

vertices

A vector of at least 3 points.

Member Function Documentation

AddVertexAtDisplayPosition() [1/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.

AddVertexAtDisplayPosition() [2/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.

AddVertexAtDisplayPosition() [3/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.

AddVertexAtDisplayPosition() [4/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX,
		float	zoomY )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.

AddVertexAtDisplayPosition() [5/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX,
		float	zoomY,
		float	panX )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.

AddVertexAtDisplayPosition() [6/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX,
		float	zoomY,
		float	panX,
		float	panY )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.
panY	Vertical pan offset. By default, no pan is added.

AddVertexAtDisplayPosition() [7/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.

AddVertexAtDisplayPosition() [8/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX,
		float	zoomY )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.

AddVertexAtDisplayPosition() [9/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX,
		float	zoomY,
		float	panX )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.

AddVertexAtDisplayPosition() [10/10]

eVision.EEditionMode eVision.EPolygon.AddVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX,
		float	zoomY,
		float	panX,
		float	panY )

Adds a vertex at the given mouse position such that the new vertex splits the edge that it is the closest to.

Returns EEditionMode.Stretch for the new vertex.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.
panY	Vertical pan offset. By default, no pan is added.

AppendVertex()

void eVision.EPolygon.AppendVertex

(

eVision.EPoint

pt

)

Appends a polygon vertex after the last.

Parameters

pt	The point to append.

CopyTo()

void eVision.EPolygon.CopyTo

(

eVision.EPolygon

other

)

Copies the content of this object to the other one.

Parameters

other

Other EPolygon object in which to copy the content of this object.

GetEdge()

eVision.ELine eVision.EPolygon.GetEdge

(

int

index

)

Edge of the polygon as a ELine object.

Parameters

index

Index of the edge between 0 and EPolygon.NumEdges - 1.

GetEdgeAngle()

float eVision.EPolygon.GetEdgeAngle

(

int

index

)

Angle of the edge with respect to the X-axis.

Parameters

index

Index of the edge between 0 and EPolygon.NumEdges - 1.

GetEdgeLength()

float eVision.EPolygon.GetEdgeLength

(

int

index

)

Length of an edge.

Parameters

index

Index of the edge between 0 and EPolygon.NumEdges - 1.

GetVertex()

eVision.EPoint eVision.EPolygon.GetVertex

(

int

index

)

Gets a polygon vertex.

Parameters

index

The index of the vertex.

InsertVertex()

void eVision.EPolygon.InsertVertex	(	int	index,
		eVision.EPoint	pt )

Inserts a vertex before the given index.

Parameters

index	The index after which the vertex will be inserted.
pt	The point to insert.

IsValid()

bool eVision.EPolygon.IsValid

(

)

Returns true if the polygon is valid. A valid polygon has at least 2 (when open) or 3 (when closed) distinct and valid vertices and no duplicate points.

RemoveVertex()

void eVision.EPolygon.RemoveVertex

(

int

index

)

Removes vertex at the given index.

Parameters

index

The index of the vertex to remove.

RemoveVertexAtDisplayPosition() [1/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition

(

)

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

RemoveVertexAtDisplayPosition() [2/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.

RemoveVertexAtDisplayPosition() [3/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.

RemoveVertexAtDisplayPosition() [4/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.

RemoveVertexAtDisplayPosition() [5/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX,
		float	zoomY )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.

RemoveVertexAtDisplayPosition() [6/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX,
		float	zoomY,
		float	panX )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.

RemoveVertexAtDisplayPosition() [7/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		eVision.EFrame	frame,
		float	zoomX,
		float	zoomY,
		float	panX,
		float	panY )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
frame	Frame of reference in which the shape is defined.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.
panY	Vertical pan offset. By default, no pan is added.

RemoveVertexAtDisplayPosition() [8/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.

RemoveVertexAtDisplayPosition() [9/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX,
		float	zoomY )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.

RemoveVertexAtDisplayPosition() [10/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX,
		float	zoomY,
		float	panX )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.

RemoveVertexAtDisplayPosition() [11/11]

void eVision.EPolygon.RemoveVertexAtDisplayPosition	(	int	x,
		int	y,
		float	zoomX,
		float	zoomY,
		float	panX,
		float	panY )

Removes the vertex at the given position or the vertex hit during the last call to EShape.HitTest.

Parameters

x	x-coordinate of the mouse cursor.
y	y-coordinate of the mouse cursor.
zoomX	Horizontal zoom factor. By default, true scale is used.
zoomY	Vertical zoom factor. By default, true scale is used.
panX	Horizontal pan offset. By default, no pan is added.
panY	Vertical pan offset. By default, no pan is added.

SetVertex()

void eVision.EPolygon.SetVertex	(	int	index,
		eVision.EPoint	pt )

Sets a polygon vertex.

Parameters

index	The index of the vertex.
pt	The vertex position.

Property Documentation

Area

float eVision.EPolygon.Area

get

Returns the area of the polygon.

AvailableEditionModes

override eVision.EEditionMode eVision.EPolygon.AvailableEditionModes

get

Available edition modes for the shape.

Center

eVision.EPoint eVision.EPolygon.Center

get

The center of the polygon (average position of all the vertices).

Description

override string eVision.EPolygon.Description

get

Textual description of the shape and its parameters.

IsClosed

bool eVision.EPolygon.IsClosed

getset

The polygon close attribute.

Length

float eVision.EPolygon.Length

get

Returns the length (perimeter) of the polygon.

NumEdges

int eVision.EPolygon.NumEdges

get

Returns the number of polygon's edges (or sides). Depends on the EPolygon.IsClosed status.

NumVertices

int eVision.EPolygon.NumVertices

get

Returns the number of polygon's vertices.

Vertices

eVision.EPoint [] eVision.EPolygon.Vertices

get

Returns the list of polygon vertices.