wpf zoom in and out of image

Question

Hello Just wondering how do you be able to zoom in and out of an imageviewer for example i want the user to be able to create an rectangular shape around the part of the image to zoom in and zoom back out how can this be done? Thank you

anwar mohamed · Answer

Hi  WPF: I've a Image control inside a ScrollViewer and TIFF file set as its source. Image displayed with black overlay for some height values (in range of 40% to 60% of image's actual height). This need to be resolved somehow. Only for some height range this problem occurs and when changed to other height it works normal. Please note: 1. The image has to be 600 DPI Resolution. 2. Image Height =3510 will reproduces the issue. Image Source =htl.tif Height =3510 Stretch =Uniform StretchDirection =Both/> This is my test code as follows: XAML Window x : Class =WpfApplication1.ScrollViewImage xmlns =http://schemas.microsoft.com/winfx/2006/xaml/presentation xmlns : x =http://schemas.microsoft.com/winfx/2006/xaml Title =ScrollViewImage Height =300 Width =300> Grid > ScrollViewer Margin =5 HorizontalScrollBarVisibility =Visible VerticalScrollBarVisibility =Visible> Image Source =htl.tif Height =3510 Stretch =Uniform StretchDirection =Both/> ScrollViewer > Grid > Window > Regards Anwar

Bechir Bejaoui · Answer

Take a look on my article http://www.c-sharpcorner.com/UploadFile/yougerthen/408222008125400PM/4.aspx