Zooming to mouse position

04-23-2008

Hello all,

I am trying to zoom to the mouse position in WPF. I have tried using a
viewbox and scaletransform. With the scaletransform I set the origin to the
mouseposition but when the origin changes (mouse moved) the zoomed elements
jump to another location. The viewbox gave the same problems.

Actually I just need a canvas with objects inside (like rectangles or
textboxes) and zoom the whole canvas arround the position of the mouse. Like
google maps or a similar application. It zooms to the location that your
mouse is hovering over.

Thanks!

04-24-2008

I managed to get it work using a Matrix and MatrixTransformation. When
scaling use the Matrix.ScaleAtPrepend function.

"Bruno" wrote:

	Quote:
	> Hello all, > > I am trying to zoom to the mouse position in WPF. I have tried using a > viewbox and scaletransform. With the scaletransform I set the origin to the > mouseposition but when the origin changes (mouse moved) the zoomed elements > jump to another location. The viewbox gave the same problems. > > Actually I just need a canvas with objects inside (like rectangles or > textboxes) and zoom the whole canvas arround the position of the mouse. Like > google maps or a similar application. It zooms to the location that your > mouse is hovering over. > > Thanks!

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