dtdisplay on-line help

View menu

Commands in the View menu are quick ways to change what is viewed in the image display area.

Refresh: This refreshes the image display area by remapping from image pixel values to the color scale and displaying the result. By default, this also auto-adjusts the contrast. However, if the (Edit/Image view props.../Auto rescale is set to No, then the image contrast will NOT be auto-adjusted.
Zoom...: This does no zooming, but pops up a message box describing how to zoom by dragging out a zoom box with the middle mouse button. The message box serves as a reminder of the not-so-apparent function of the middle mouse button. If you zoom large enough, then the actual pixel values are superimposed on the image.
Unzoom: This unzooms a zoomed image and refreshes an unzoomed image. You can also unzoom an image by double-clicking on it with the middle mouse button.
Pan...
Cursors...
Rocking curves...: This does no panning, put pops up a message box describing how to pan by dragging across a zoomed image with BOTH the left and middle mouse buttons pressed. The message box serves as a reminder of the not-so-apparent functions of the middle mouse button to access the line and circle cursors, such as editing the direct beam position.
Image header...: This displays a new window with the image header in it. You cannot save any edits made to the image header.
Observed reflections: This toggle button selects whether any available reflection list is displayed or not. Read a reflection list with the Read refln list... command in the File menu.
Resolution arcs: This displays isoresolution circles or arcs on the image. Up to 5 arcs are displayed. To determine the resolution of any given arc, simply click on it and view the resolution in the scrolled output window in the upper left of the dtdisplay window.
Measure: This selects whether the crystallographic d-spacing in Ångstroms between the last two selected pixels is calculated and displayed in the scrolled text output area. The detector position and spatial distortion as well as the source wavelength are required to calculate the d-spacing. If they are unavailable, then the d-spacing is not calculated.