eVision.EWindowsDrawAdapter Class Reference

A draw adapter using the GDI+ native API on Windows. More...

Inheritance diagram for eVision.EWindowsDrawAdapter:

Collaboration diagram for eVision.EWindowsDrawAdapter:

Public Member Functions
None	__init__ (self, ctypes.c_void_p dc)
	Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.
None	__init__ (self, ctypes.c_void_p dc, bool enhancedDisplay)
	Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.
None	__init__ (self, eVision.EImageBW8|None pImage)
	Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.
None	__init__ (self, eVision.EImageBW8|None pImage, bool enhancedDisplay)
	Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.
None	__init__ (self, eVision.EImageC24|None pImage)
	Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.
None	__init__ (self, eVision.EImageC24|None pImage, bool enhancedDisplay)
	Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.
None	DrawPoint (self, int x1, int y1, eVision.EPen pen)
	Draws a point at the given coordinate.
None	DrawPoint (self, int x1, int y1)
	Draws a point at the given coordinate.
None	Line (self, int x1, int y1, int x2, int y2, eVision.EPen pen)
	Draws a line between two points.
None	Line (self, int x1, int y1, int x2, int y2)
	Draws a line between two points.
None	Arc (self, int orgX, int orgY, int width, int height, float startAngle, float amplitude, eVision.EPen pen)
	Draws an arc defined by a rectangle, angle, and amplitude.
None	Arc (self, int orgX, int orgY, int width, int height, float startAngle, float amplitude)
	Draws an arc defined by a rectangle, angle, and amplitude.
None	Rectangle (self, int orgX, int orgY, int width, int height, eVision.EPen pen)
	Draws a rectangle.
None	Rectangle (self, int orgX, int orgY, int width, int height)
	Draws a rectangle.
None	Polygon (self, list[eVision._eVision.EPoint] points, eVision.EPen pen)
	Draws a polygon.
None	Polygon (self, list[eVision._eVision.EPoint] points)
	Draws a polygon.
None	Ellipse (self, int orgX, int orgY, int width, int height, eVision.EPen pen)
	Draws an ellipse.
None	Ellipse (self, int orgX, int orgY, int width, int height)
	Draws an ellipse.
None	FilledRectangle (self, int orgX, int orgY, int width, int height, eVision.EPen pen, eVision.EBrush brush)
	Fills a rectangle.
None	FilledRectangle (self, int orgX, int orgY, int width, int height, eVision.EPen pen)
	Fills a rectangle.
None	FilledRectangle (self, int orgX, int orgY, int width, int height)
	Fills a rectangle.
None	FilledEllipse (self, int orgX, int orgY, int width, int height, eVision.EPen pen, eVision.EBrush brush)
	Fills an ellipse.
None	FilledEllipse (self, int orgX, int orgY, int width, int height, eVision.EPen pen)
	Fills an ellipse.
None	FilledEllipse (self, int orgX, int orgY, int width, int height)
	Fills an ellipse.
None	FilledPolygon (self, list[eVision._eVision.EPoint] points, eVision.EPen pen, eVision.EBrush brush)
	Fills a polygon.
None	FilledPolygon (self, list[eVision._eVision.EPoint] points, eVision.EPen pen)
	Fills a polygon.
None	FilledPolygon (self, list[eVision._eVision.EPoint] points)
	Fills a polygon.
None	Text (self, str text, int x, int y, float orientation, eVision.EBrush textBrush, eVision.ETextSizeConstraint constraint)
	Draws a text.
None	Text (self, str text, int x, int y, float orientation, eVision.EBrush textBrush)
	Draws a text.
None	Text (self, str text, int x, int y, float orientation)
	Draws a text.
None	BackedText (self, str text, int x, int y, float orientation, eVision.EBrush textBrush, eVision.EBrush backgroundBrush, eVision.ETextSizeConstraint constraint)
	Draws a text with a background.
None	BackedText (self, str text, int x, int y, float orientation, eVision.EBrush textBrush, eVision.EBrush backgroundBrush)
	Draws a text with a background.
None	BackedText (self, str text, int x, int y, float orientation, eVision.EBrush textBrush)
	Draws a text with a background.
None	BackedText (self, str text, int x, int y, float orientation)
	Draws a text with a background.
None	Image (self, eVision.EBaseROI image, float orgX, float orgY, float width, float height)
	Draws an image.
None	Image (self, eVision.EROIBW8 image, eVision.EC24Vector|None pColorScale, float orgX, float orgY, float width, float height)
	Draws an image.
None	Image (self, eVision.EROIBW8 image, eVision.EBW8Vector|None pColorScale, float orgX, float orgY, float width, float height)
	Draws an image.
eVision.EPoint	GetTextSize (self, str text)
	Size of the given text using the default font (eVision.EWindowsDrawAdapter.Font).
None	UseCurrentPen (self)
	Uses the current GDI pen.
None	UseCurrentBrush (self)
	Use the current pen set in the drawing framework.
None	Close (self)
	Closes the attached drawing context.
int	ComputeTextSize (self, str text, int desiredWidth)
	Computes text size for given constraint.
Public Member Functions inherited from eVision.EDrawAdapter
None	RotatedEllipse (self, float centerX, float centerY, float radianAngle, float longAxis, float shortAxis, bool drawDiagonals, eVision.EPen pen)
	Draws a rotated ellipse.
None	RotatedEllipse (self, float centerX, float centerY, float radianAngle, float longAxis, float shortAxis, bool drawDiagonals)
	Draws a rotated ellipse.
None	RotatedEllipse (self, eVision.EEllipse ellipse, bool drawDiagonals, eVision.EPen pen)
	Draws a rotated ellipse.
None	RotatedEllipse (self, eVision.EEllipse ellipse, bool drawDiagonals)
	Draws a rotated ellipse.
None	FilledRotatedEllipse (self, float centerX, float centerY, float radianAngle, float longAxis, float shortAxis, eVision.EPen pen, eVision.EBrush brush)
	Fills a rotated ellipse.
None	FilledRotatedEllipse (self, float centerX, float centerY, float radianAngle, float longAxis, float shortAxis, eVision.EPen pen)
	Fills a rotated ellipse.
None	FilledRotatedEllipse (self, float centerX, float centerY, float radianAngle, float longAxis, float shortAxis)
	Fills a rotated ellipse.
None	FilledRotatedEllipse (self, eVision.EEllipse ellipse, eVision.EPen pen, eVision.EBrush brush)
	Fills a rotated ellipse.
None	FilledRotatedEllipse (self, eVision.EEllipse ellipse, eVision.EPen pen)
	Fills a rotated ellipse.
None	FilledRotatedEllipse (self, eVision.EEllipse ellipse)
	Fills a rotated ellipse.
None	DrawMask (self, eVision.EBaseROI mask, eVision.EBrush brush)
	Draws a mask with a brush.
None	DrawMask (self, eVision.EBaseROI mask)
	Draws a mask with a brush.
None	DrawMask (self, eVision.EBaseROI mask, float orgX, float orgY, float width, float height, eVision.EBrush brush)
	Draws a mask with a brush.
None	DrawMask (self, eVision.EBaseROI mask, float orgX, float orgY, float width, float height)
	Draws a mask with a brush.

Properties
	Pen = property(_Pen__getter, _Pen__setter)
	Default pen.
	Brush = property(_Brush__getter, _Brush__setter)
	Default brush.
	Font = property(_Font__getter, _Font__setter)
	Default font.
	HDC = property(_HDC__getter, None)
	Gets the HDC associated with this instance of eVision.EWindowsDrawAdapter.
Properties inherited from eVision.EDrawAdapter
	Pen = property(_Pen__getter, _Pen__setter)
	Default pen.
	Brush = property(_Brush__getter, _Brush__setter)
	Default brush.
	Font = property(_Font__getter, _Font__setter)
	Default font.

Detailed Description

A draw adapter using the GDI+ native API on Windows.

Remarks:

This class is only usable on Windows and all its methods will throw NotImplemented errors if used on another platform.

This draw adapter is recommended specifically for direct drawing on screen in C++ programs based on the MFC framework. Please also see:

• eVision.EGenericDrawAdapter for drawing in eVision images, as it is fully cross-platform.
• ESystemDrawAdapter for .NET programs, as it is more adapted to the .NET API.

In programming languages other than C++, it is necessary to call eVision.EWindowsDrawAdapter.Close in a try/finally block after instanciating objects from the class.

License(s): None

Constructor & Destructor Documentation

__init__() [1/6]

None eVision.EWindowsDrawAdapter.__init__	(		self,
		ctypes.c_void_p	dc )

Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.

If a drawing context is provided eVision.EWindowsDrawAdapter will forward all drawing commands to that drawing context.

If an image is provided a drawing context will be initialized on that image and that drawing context will be closed either on destruction of the eVision.EWindowsDrawAdapter or when the eVision.EWindowsDrawAdapter.Close method is called.

Parameters

dc	The Windows API drawing context.

__init__() [2/6]

None eVision.EWindowsDrawAdapter.__init__	(		self,
		ctypes.c_void_p	dc,
		bool	enhancedDisplay )

Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.

If a drawing context is provided eVision.EWindowsDrawAdapter will forward all drawing commands to that drawing context.

If an image is provided a drawing context will be initialized on that image and that drawing context will be closed either on destruction of the eVision.EWindowsDrawAdapter or when the eVision.EWindowsDrawAdapter.Close method is called.

Parameters

dc	The Windows API drawing context.
enhancedDisplay	Whether to activate enhanced display. When enabled, enhanced mode performs advanced interpolation for image display. By default, enhanced mode is disabled. Please note that enhanced mode has a significant impact on drawing performances.

__init__() [3/6]

None eVision.EWindowsDrawAdapter.__init__	(		self,
		eVision.EImageBW8 | None	pImage )

Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.

If a drawing context is provided eVision.EWindowsDrawAdapter will forward all drawing commands to that drawing context.

If an image is provided a drawing context will be initialized on that image and that drawing context will be closed either on destruction of the eVision.EWindowsDrawAdapter or when the eVision.EWindowsDrawAdapter.Close method is called.

Parameters

pImage

An image to draw to.

__init__() [4/6]

None eVision.EWindowsDrawAdapter.__init__	(		self,
		eVision.EImageBW8 | None	pImage,
		bool	enhancedDisplay )

Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.

If a drawing context is provided eVision.EWindowsDrawAdapter will forward all drawing commands to that drawing context.

If an image is provided a drawing context will be initialized on that image and that drawing context will be closed either on destruction of the eVision.EWindowsDrawAdapter or when the eVision.EWindowsDrawAdapter.Close method is called.

Parameters

pImage	An image to draw to.
enhancedDisplay	Whether to activate enhanced display. When enabled, enhanced mode performs advanced interpolation for image display. By default, enhanced mode is disabled. Please note that enhanced mode has a significant impact on drawing performances.

__init__() [5/6]

None eVision.EWindowsDrawAdapter.__init__	(		self,
		eVision.EImageC24 | None	pImage )

Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.

If a drawing context is provided eVision.EWindowsDrawAdapter will forward all drawing commands to that drawing context.

If an image is provided a drawing context will be initialized on that image and that drawing context will be closed either on destruction of the eVision.EWindowsDrawAdapter or when the eVision.EWindowsDrawAdapter.Close method is called.

Parameters

pImage

An image to draw to.

__init__() [6/6]

None eVision.EWindowsDrawAdapter.__init__	(		self,
		eVision.EImageC24 | None	pImage,
		bool	enhancedDisplay )

Creates an eVision.EWindowsDrawAdapter either by providing a drawing context or an image.

If a drawing context is provided eVision.EWindowsDrawAdapter will forward all drawing commands to that drawing context.

If an image is provided a drawing context will be initialized on that image and that drawing context will be closed either on destruction of the eVision.EWindowsDrawAdapter or when the eVision.EWindowsDrawAdapter.Close method is called.

Parameters

pImage	An image to draw to.
enhancedDisplay	Whether to activate enhanced display. When enabled, enhanced mode performs advanced interpolation for image display. By default, enhanced mode is disabled. Please note that enhanced mode has a significant impact on drawing performances.

Member Function Documentation

Arc() [1/2]

None eVision.EWindowsDrawAdapter.Arc	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		float	startAngle,
		float	amplitude )

Draws an arc defined by a rectangle, angle, and amplitude.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle
startAngle	Starting angle of the arc in radians
amplitude	Amplitude of the arc in radians

Reimplemented from eVision.EDrawAdapter.

Arc() [2/2]

None eVision.EWindowsDrawAdapter.Arc	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		float	startAngle,
		float	amplitude,
		eVision.EPen	pen )

Draws an arc defined by a rectangle, angle, and amplitude.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle
startAngle	Starting angle of the arc in radians
amplitude	Amplitude of the arc in radians
pen	Optional pen to use

Reimplemented from eVision.EDrawAdapter.

BackedText() [1/4]

None eVision.EWindowsDrawAdapter.BackedText	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation )

Draws a text with a background.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.

Reimplemented from eVision.EDrawAdapter.

BackedText() [2/4]

None eVision.EWindowsDrawAdapter.BackedText	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation,
		eVision.EBrush	textBrush )

Draws a text with a background.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.
textBrush	Optional brush to use for the color of the text.

Reimplemented from eVision.EDrawAdapter.

BackedText() [3/4]

None eVision.EWindowsDrawAdapter.BackedText	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation,
		eVision.EBrush	textBrush,
		eVision.EBrush	backgroundBrush )

Draws a text with a background.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.
textBrush	Optional brush to use for the color of the text.
backgroundBrush	Optional brush to use for the background.

Reimplemented from eVision.EDrawAdapter.

BackedText() [4/4]

None eVision.EWindowsDrawAdapter.BackedText	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation,
		eVision.EBrush	textBrush,
		eVision.EBrush	backgroundBrush,
		eVision.ETextSizeConstraint	constraint )

Draws a text with a background.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.
textBrush	Optional brush to use for the color of the text.
backgroundBrush	Optional brush to use for the background.
constraint	Text size constraint. By default, no constraint is to be applied.

Reimplemented from eVision.EDrawAdapter.

Close()

None eVision.EWindowsDrawAdapter.Close

(

self

)

Closes the attached drawing context.

In C++, This method is always called implicitly during the destruction of the current object. In other programming languages it is necessary to call it explicitly in a try/finally block to ensure all ressources are properly cleaned after usage of objects from this class.

This method never throws exceptions.

ComputeTextSize()

int eVision.EWindowsDrawAdapter.ComputeTextSize	(		self,
		str	text,
		int	desiredWidth )

Computes text size for given constraint.

Constraint is the desired total width of the text to draw.

Parameters

text	Text to measure before drawing.
desiredWidth	Width constraint.

Reimplemented from eVision.EDrawAdapter.

DrawPoint() [1/2]

None eVision.EWindowsDrawAdapter.DrawPoint	(		self,
		int	x1,
		int	y1 )

Draws a point at the given coordinate.

Parameters

x1	X coordinate
y1	Y coordinate

Reimplemented from eVision.EDrawAdapter.

DrawPoint() [2/2]

None eVision.EWindowsDrawAdapter.DrawPoint	(		self,
		int	x1,
		int	y1,
		eVision.EPen	pen )

Draws a point at the given coordinate.

Parameters

x1	X coordinate
y1	Y coordinate
pen	Optional pen to use

Reimplemented from eVision.EDrawAdapter.

Ellipse() [1/2]

None eVision.EWindowsDrawAdapter.Ellipse	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height )

Draws an ellipse.

Remarks:

This method only draws axis-aligned ellipses, if the given ellipse has an angle, it is ignored. To draw rotated ellipses, use eVision.EDrawAdapter.RotatedEllipse instead. An ellipse with full angular amplitude is always drawn.

Parameters

orgX	X origin of the rectangle containing the ellipse
orgY	Y origin of the rectangle containing the ellipse
width	Width of the rectangle containing the ellipse
height	Height of the rectangle containing the ellipse

Reimplemented from eVision.EDrawAdapter.

Ellipse() [2/2]

None eVision.EWindowsDrawAdapter.Ellipse	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		eVision.EPen	pen )

Draws an ellipse.

Remarks:

This method only draws axis-aligned ellipses, if the given ellipse has an angle, it is ignored. To draw rotated ellipses, use eVision.EDrawAdapter.RotatedEllipse instead. An ellipse with full angular amplitude is always drawn.

Parameters

orgX	X origin of the rectangle containing the ellipse
orgY	Y origin of the rectangle containing the ellipse
width	Width of the rectangle containing the ellipse
height	Height of the rectangle containing the ellipse
pen	Optional pen to use

Reimplemented from eVision.EDrawAdapter.

FilledEllipse() [1/3]

None eVision.EWindowsDrawAdapter.FilledEllipse	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height )

Fills an ellipse.

Remarks:

This method only draws axis-aligned ellipses, if the given ellipse has an angle, it is ignored. To draw filled and rotated ellipses, use eVision.EDrawAdapter.FilledRotatedEllipse instead. An ellipse with full angular amplitude is always drawn.

Parameters

orgX	X origin of the rectangle containing the ellipse
orgY	Y origin of the rectangle containing the ellipse
width	Width of the rectangle containing the ellipse
height	Height of the rectangle containing the ellipse

Reimplemented from eVision.EDrawAdapter.

FilledEllipse() [2/3]

None eVision.EWindowsDrawAdapter.FilledEllipse	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		eVision.EPen	pen )

Fills an ellipse.

Remarks:

This method only draws axis-aligned ellipses, if the given ellipse has an angle, it is ignored. To draw filled and rotated ellipses, use eVision.EDrawAdapter.FilledRotatedEllipse instead. An ellipse with full angular amplitude is always drawn.

Parameters

orgX	X origin of the rectangle containing the ellipse
orgY	Y origin of the rectangle containing the ellipse
width	Width of the rectangle containing the ellipse
height	Height of the rectangle containing the ellipse
pen	Optional pen to use for drawing the contour of the ellipse

Reimplemented from eVision.EDrawAdapter.

FilledEllipse() [3/3]

None eVision.EWindowsDrawAdapter.FilledEllipse	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		eVision.EPen	pen,
		eVision.EBrush	brush )

Fills an ellipse.

Remarks:

This method only draws axis-aligned ellipses, if the given ellipse has an angle, it is ignored. To draw filled and rotated ellipses, use eVision.EDrawAdapter.FilledRotatedEllipse instead. An ellipse with full angular amplitude is always drawn.

Parameters

orgX	X origin of the rectangle containing the ellipse
orgY	Y origin of the rectangle containing the ellipse
width	Width of the rectangle containing the ellipse
height	Height of the rectangle containing the ellipse
pen	Optional pen to use for drawing the contour of the ellipse
brush	Optional pen to use for drawing the inside of the ellipse

Reimplemented from eVision.EDrawAdapter.

FilledPolygon() [1/3]

None eVision.EWindowsDrawAdapter.FilledPolygon	(		self,
		list[eVision._eVision.EPoint]	points )

Fills a polygon.

Parameters

points

Points of the polygon

Reimplemented from eVision.EDrawAdapter.

FilledPolygon() [2/3]

None eVision.EWindowsDrawAdapter.FilledPolygon	(		self,
		list[eVision._eVision.EPoint]	points,
		eVision.EPen	pen )

Fills a polygon.

Parameters

points	Points of the polygon
pen	Optional pen to use for drawing the contour of the polygon

Reimplemented from eVision.EDrawAdapter.

FilledPolygon() [3/3]

None eVision.EWindowsDrawAdapter.FilledPolygon	(		self,
		list[eVision._eVision.EPoint]	points,
		eVision.EPen	pen,
		eVision.EBrush	brush )

Fills a polygon.

Parameters

points	Points of the polygon
pen	Optional pen to use for drawing the contour of the polygon
brush	Optional pen to use for drawing the inside of the polygon

Reimplemented from eVision.EDrawAdapter.

FilledRectangle() [1/3]

None eVision.EWindowsDrawAdapter.FilledRectangle	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height )

Fills a rectangle.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle

Reimplemented from eVision.EDrawAdapter.

FilledRectangle() [2/3]

None eVision.EWindowsDrawAdapter.FilledRectangle	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		eVision.EPen	pen )

Fills a rectangle.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle
pen	Optional pen to use for drawing the contour of the rectangle

Reimplemented from eVision.EDrawAdapter.

FilledRectangle() [3/3]

None eVision.EWindowsDrawAdapter.FilledRectangle	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		eVision.EPen	pen,
		eVision.EBrush	brush )

Fills a rectangle.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle
pen	Optional pen to use for drawing the contour of the rectangle
brush	Optional brush to use for filling the inside of the rectangle

Reimplemented from eVision.EDrawAdapter.

GetTextSize()

eVision.EPoint eVision.EWindowsDrawAdapter.GetTextSize	(		self,
		str	text )

Size of the given text using the default font (eVision.EWindowsDrawAdapter.Font).

Parameters

text

Text

Reimplemented from eVision.EDrawAdapter.

Image() [1/3]

None eVision.EWindowsDrawAdapter.Image	(		self,
		eVision.EBaseROI	image,
		float	orgX,
		float	orgY,
		float	width,
		float	height )

Draws an image.

Parameters

image	Image.
orgX	X coordinate of the point where to draw the image.
orgY	Y coordinate of the point where to draw the image.
width	Width of the destination rectangle in which to draw the image.
height	Height of the destination rectangle in which to draw the image.

Reimplemented from eVision.EDrawAdapter.

Image() [2/3]

None eVision.EWindowsDrawAdapter.Image	(		self,
		eVision.EROIBW8	image,
		eVision.EBW8Vector | None	pColorScale,
		float	orgX,
		float	orgY,
		float	width,
		float	height )

Draws an image.

Parameters

image	Image.
pColorScale	Color scale to draw a grayscale image with.
orgX	X coordinate of the point where to draw the image.
orgY	Y coordinate of the point where to draw the image.
width	Width of the destination rectangle in which to draw the image.
height	Height of the destination rectangle in which to draw the image.

Reimplemented from eVision.EDrawAdapter.

Image() [3/3]

None eVision.EWindowsDrawAdapter.Image	(		self,
		eVision.EROIBW8	image,
		eVision.EC24Vector | None	pColorScale,
		float	orgX,
		float	orgY,
		float	width,
		float	height )

Draws an image.

Parameters

image	Image.
pColorScale	Color scale to draw a grayscale image with.
orgX	X coordinate of the point where to draw the image.
orgY	Y coordinate of the point where to draw the image.
width	Width of the destination rectangle in which to draw the image.
height	Height of the destination rectangle in which to draw the image.

Reimplemented from eVision.EDrawAdapter.

Line() [1/2]

None eVision.EWindowsDrawAdapter.Line	(		self,
		int	x1,
		int	y1,
		int	x2,
		int	y2 )

Draws a line between two points.

Parameters

x1	X coordinate of line origin point
y1	Y coordinate of line origin point
x2	X coordinate of line end point
y2	Y coordinate of line end point

Reimplemented from eVision.EDrawAdapter.

Line() [2/2]

None eVision.EWindowsDrawAdapter.Line	(		self,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		eVision.EPen	pen )

Draws a line between two points.

Parameters

x1	X coordinate of line origin point
y1	Y coordinate of line origin point
x2	X coordinate of line end point
y2	Y coordinate of line end point
pen	Optional pen to use

Reimplemented from eVision.EDrawAdapter.

Polygon() [1/2]

None eVision.EWindowsDrawAdapter.Polygon	(		self,
		list[eVision._eVision.EPoint]	points )

Draws a polygon.

Parameters

points

Points of the polygon

Reimplemented from eVision.EDrawAdapter.

Polygon() [2/2]

None eVision.EWindowsDrawAdapter.Polygon	(		self,
		list[eVision._eVision.EPoint]	points,
		eVision.EPen	pen )

Draws a polygon.

Parameters

points	Points of the polygon
pen	Optional pen to use

Reimplemented from eVision.EDrawAdapter.

Rectangle() [1/2]

None eVision.EWindowsDrawAdapter.Rectangle	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height )

Draws a rectangle.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle

Reimplemented from eVision.EDrawAdapter.

Rectangle() [2/2]

None eVision.EWindowsDrawAdapter.Rectangle	(		self,
		int	orgX,
		int	orgY,
		int	width,
		int	height,
		eVision.EPen	pen )

Draws a rectangle.

Parameters

orgX	X origin of the rectangle
orgY	Y origin of the rectangle
width	Width of the rectangle
height	Height of the rectangle
pen	Optional pen to use

Reimplemented from eVision.EDrawAdapter.

Text() [1/3]

None eVision.EWindowsDrawAdapter.Text	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation )

Draws a text.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.

Reimplemented from eVision.EDrawAdapter.

Text() [2/3]

None eVision.EWindowsDrawAdapter.Text	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation,
		eVision.EBrush	textBrush )

Draws a text.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.
textBrush	Optional brush to use for the color of the text.

Reimplemented from eVision.EDrawAdapter.

Text() [3/3]

None eVision.EWindowsDrawAdapter.Text	(		self,
		str	text,
		int	x,
		int	y,
		float	orientation,
		eVision.EBrush	textBrush,
		eVision.ETextSizeConstraint	constraint )

Draws a text.

Remarks:

If desiredWidth is greater than 0, current font size will be ignored and a new one will be temporally set so that the whole drawn text fills in desiredWidth pixels.

Parameters

text	Text to draw.
x	X position of the text.
y	Y position of the text.
orientation	Orientation of the text in radians.
textBrush	Optional brush to use for the color of the text.
constraint	Text size constraint. By default, no constraint is to be applied.

Reimplemented from eVision.EDrawAdapter.

UseCurrentBrush()

None eVision.EWindowsDrawAdapter.UseCurrentBrush

(

self

)

Use the current pen set in the drawing framework.

Reimplemented from eVision.EDrawAdapter.

UseCurrentPen()

None eVision.EWindowsDrawAdapter.UseCurrentPen

(

self

)

Uses the current GDI pen.

Reimplemented from eVision.EDrawAdapter.

Property Documentation

Brush

eVision.EWindowsDrawAdapter.Brush = property(_Brush__getter, _Brush__setter)

static

Default brush.

Font

eVision.EWindowsDrawAdapter.Font = property(_Font__getter, _Font__setter)

static

Default font.

HDC

eVision.EWindowsDrawAdapter.HDC = property(_HDC__getter, None)

static

Gets the HDC associated with this instance of eVision.EWindowsDrawAdapter.

Pen

eVision.EWindowsDrawAdapter.Pen = property(_Pen__getter, _Pen__setter)

static

Default pen.