ViewerToImagePoint Method

public Point ViewerToImagePoint( 
   Point point,
   bool accountForViewPerspective
)

'Declaration
 
Public Function ViewerToImagePoint( _
   ByVal point As Point, _
   ByVal accountForViewPerspective As Boolean _
) As Point

'Usage
 
Dim instance As RasterImageViewer
Dim point As Point
Dim accountForViewPerspective As Boolean
Dim value As Point
 
value = instance.ViewerToImagePoint(point, accountForViewPerspective)

public:
Point ViewerToImagePoint( 
   Point point,
   bool accountForViewPerspective
) 

Parameters

point

The point in viewer coordinates.

accountForViewPerspective

true to return the coordinates in the current Image view perspective. false to return the coordinates in top-left view perspective.

Return Value

This method converts a point from viewer (physical) to image (logical) coordinates. The viewer coordinates is what you are currently seeing on the screen. It contains the current scale and scroll values (as well as any padding if set). For example, when you use the RasterViewerInteractiveMode.UserRectangle, the value obtained from the RasterViewerRectangleEventArgs.Rectangle parameter to the InteractiveUserRectangle event is in physical coordinates. If you need to convert this value to image coordinates (for example, to use it as a region or to find the exact pixel coordinate of this rectangle in the image) then you should use the ViewerToImagePoint or ViewerToImageRectangle methods.

When accountForViewPerspective is set to true, the return point value is in the same view perspective as the current image (RasterImage.ViewPerspective) which might not be necessary in top-left coordinates. If this value is false, the return value is always in top-left coordinates.

To convert a point from image (logical) to viewer (physical) coordinates, use the ImageToViewerPoint method.

To convert a rectangle from image to viewer coordinates and back, use ImageToViewerRectangle and ViewerToImageRectangle.

Target Platforms

Reference

RasterImageViewer Class
RasterImageViewer Members