Changing zoom level / position

<< Click to Display Table of Contents >>

Navigation:  Basic Topics > Using basic tools >

Changing zoom level / position

Image zooming

 

Click the  Zoom image  button on the toolbar (or press the  Z  key).

 

RadiAnt_DICOM_Viewer_Adjust_Zoom_Button

 

Next, press left mouse button over the image and drag the mouse Up to zoom in or Down to zoom out.

 

By default, the zooming tool is associated with the right mouse button.

 

Another way to zoom is to place the cursor over the image, press the  Ctrl  key, and turn the mouse wheel in both directions to zoom in or out.

Alternatively, the  Ctrl + Plus (+)  and  Ctrl + Minus (-)  keyboard shortcuts can be used to zoom.

 

On multi-touch devices, touch the image with two fingers and drag them apart to zoom in, or toward each other to zoom out.

 

Different zoom presets can be quickly applied by pressing  Ctrl + 0-4 

 

Key

Preset

 Ctrl + 0 

Fill viewport with image

 Ctrl + 1 

100% (1 image pixel = 1 screen pixel)

 Ctrl + 2 

200% (1 image pixel = 2 screen pixels)

 Ctrl + 3 

400% (1 image pixel = 4 screen pixels)

 Ctrl + 4 

800% (1 image pixel = 8 screen pixels)

 

These presets are also available from the  Zoom image  drop down menu.

 

RadiAnt_DICOM_Viewer_Adjust_Zooming_DropDownMenu

 

 

Image panning

 

When an image is zoomed in, panning can be used to reveal areas lying outside the viewing panel.

 

Click the  Pan image  button on the toolbar (or press the  M  key).

 

RadiAnt_DICOM_Viewer_Adjust_Pan_Button

 

Next, press the left mouse button over the image and drag the mouse to move image around the screen.

 

Press the  Shift  key and drag mouse with the left button down, and the panning tool will be active regardless of the current left mouse button association.

 

Alternatively,  Ctrl + Arrows (Up, Down, Left or Right)  can be used to pan.

 

On multi-touch devices, touch the image with two fingers and drag them across the panel to move image. Keep the distance between the fingers unchanged to maintain the current zoom ratio.

 

Press  Ctrl + 0  to revert the zoom and pan settings and fill the viewport with the image.