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Back to FreeviewGeneralUsage

Continue to FreeviewInterface

Quick Start

Freeview can be started by invoking it from the command line. This can be done by simply typing:

freeview

You should see the freeview GUI open with a blank black box. <<br>> To load a volume, go to File>Load Volume or you can press Ctrl+O for the keyboard shortcut or you can click the load volume icon loadvolumeicon.gif on the toolbar. Browse for the desired volume by clicking on the folder icon and hitting "Open" once you have clicked on the volume's file name and then "OK" to load it in freeview.

You can load several other volumes the same way or you can create a new volume file by going to File>New Volume or clicking the new volume icon autofs/homes/011/cagnazzi/newvolumeicon.gif on the toolbar. Enter the name of the new volume (Note: Although this name will appear in the Volumes panel, the new volume has not yet been saved) and choose a template volume. <<br>><<br>>

If you prefer to load a volume or multiple volumes from the command line, this could be done by doing:

freeview -v volumename1.mgz volumename2.mgz volumename3.mgz ...

You can explore data in a number of different viewing fields, and orientations. To see all orientations at once, including the 3D representation, choose from the toolbar on the top either 2x2 layout_2x2.gif, 1&3 layout_1n3.gif, or 1&3 horizontal layout_1n3_h.gif. To have one orientation as full screen, choose the 1x1 option layout_1x1.gif. To the right of these buttons are the buttons with which you can change the orientation: saggital view_sagittal.gif, coronal view_coronal.gif, axial view_axial.gif, and 3D view_3d.gif.

You can move through the data using the mouse. Clicking on the data at a certain point will move the red crosshair to that point (as long as you are in Navigate mode, see below), the coordinates of which will be given on the bottom of the window. To scroll through slices, use Page Up and Page Down on the keyboard. To zoom in and out, use the scroll button on the mouse. To move the whole image, either click and drag using the scroll button on the mouse, or use the arrow keys on the keyboard.

In the top, left corner of the window, directly beneath the File and Edit menus you can switch between Navigate navigate.gif and Voxel Edit voxel_edit.gif modes. While in Navigate mode, you can use the mouse to move the red crosshairs and navigate through the data. Click to Voxel Edit mode, a drawing toolbox appears, and you can draw upon the volume. In the lefthand control panel, you can change Color Maps, adjust the opacity (useful when working with multiple volumes in the same window), and adjust the contrast (Window, Level, Min and Max sliding bars).

To save data and volumes, go to File>Save Volume or click the save icon savevolumeicon.gif. If it was a new volume, never before saved, it will ask you to again enter the desired volume name. Do so, and click OK. If it was a previously saved volume that you made changes to, it will continue saving under that volume name. There is a blue activity bar in the bottom right corner of Freeview. This shows the progress of loading and/or saving volumes. Be sure to wait until it is done saving before exiting Freeview. You can also check in the terminal window for a message stating that your volume has saved successfully. Note: you can continue working and making changes while it is saving, but again, be sure to save the most updated version before exiting!

Continue to FreeviewInterface for more information.

FreeviewGuide/FreeviewGeneralUsage/FreeviewQuickStart (last edited 2013-11-12 13:02:01 by MaritzaEbling)