Writing Output

Cuts and Profiles

Data may be written to files by selecting an option from the "Write" submenu. The option "Write""Section" causes every intensity sample along a line or circle cut to be written to an ASCII file named my_sample.cuts; the angular and reciprocal space coordinates theta and q, the azimuthal angle psi, integer pixel coordinates, and integer sample values are written in column format. Each write operation begins with a header line identifying the type of cut and the number of sample points; the first character of this header is #. Each write operation terminates with a line containing only the character &. Write operations may be repeated.

# circular integration  1251 samples (q,th,psi,x,y,avg)
 0.0000    0.000    0.00  1250 1250   110.
 0.0033    0.023    0.00  1251 1250    39.
 0.0065    0.046    0.00  1252 1250    10.7
 0.0098    0.069    0.00  1253 1250     3.3
 0.0130    0.092    0.00  1254 1250     1.98
 0.0163    0.115    0.00  1255 1250     1.45
 0.0196    0.138    0.00  1256 1250     1.18
    ...
 3.1160   22.477    0.00  2498 1250    15.2
 3.1175   22.489    0.00  2499 1250    13.5
 3.1190   22.500    0.00  2500 1250     7.5
&

The "Write" option "Profile" causes 1-d integrated profiles to be written in ASCII format to a file named my_sample.profs; the angular and reciprocal space coordinates theta and q, the azimuthal angle psi, integer or float Cartesian coordinates, and float intensity averages are written in column format. Each profile begins with a header line identifying the type of profile and the number of sample point; the first character of this header is #. Each write operation terminates with a line containing only the character &.

If more than one type of integrated profile (Circular, Rectangle, Sector) has been computed, the current example of each type will be written by a single "Write" "Profile" operation; however, the circular integrated profile will never be written more than once, unless a new center of image is chosen.

Surface

The "Write" option "Surface" generates an ASCII file named my_sample.surfs listing all 71x71 support point coordinates and intensities (angular and reciprocal space coordinates, azimuthal angles, float Cartesian coordinates, and float intensities). Write operations may be repeated.

Zoom (PostScript®)

The "Write" option "Zoom.ps" generates a PostScript® file named my_sample.zoom.ps representing the magnified spot in the current zoom subwindow using the current color scale. The central pixel in the zoom subwindow is highlighted on the PostScript® zoom subwindow image, similar to the zoom subwindow display. Any marked points which lie within the current zoom subwindow are also indicated on the zoom subwindow image by highlighting. When intensity values appear in the individual squares of the zoom subwindow, they will also be written in each square of the zoom subwindow image. A pixel coordinate scale is drawn on the top and left edges of the zoom subwindow image.

The output page is annotated with the input file name, page creation date and time, and the location and intensity of each marked point lying within the zoom subwindow. For each marked point in the zoom subwindow, the reciprocal space coordinate q, spacing d, pixel coordinates in the full image, and intensity value are shown. Annotations for up to five marked points are written on the zoom subwindow image page. Each request to "Write" "Zoom.ps" adds a separate image page of output to my_sample.zoom.ps.

Image (PostScript®)

The "Write" option "Image.ps" generates a PostScript® file named my_sample.ps representing the full image in the current color scale, sampled at a resolution of 500x500. (For CCD images, the image resolution of 625x576 is used.) Marked points are indicated on the image with cross hairs, similar to the screen image display. The output page is annotated with the input file name, page creation date and time, and the location and intensity of each marked point. For each marked point, the reciprocal space coordinate q, spacing d, pixel coordinates in the full image, and intensity value are shown. Annotations for up to five marked points are written on the image page; if more than five marked points exist, further annotations are written on a second page. Each request to "Write" "Image.ps" adds a separate image page of PostScript® output to my_sample.ps.

Image (Tiff)

The "Write" option "Image.tiff" generates a Tagged Image Format File named my_sample.tiff representing the image in the current color scale, sampled at full resolution. Tagged information included in the Tiff file includes the input file name, and page creation date and time. Only one Tiff image can be created each time eXaminer is run; a second request to "Write" "Image.tiff" will overwrite the file my_sample.tiff.

"Write" "Mark list" generates an ASCII file named my_sample.marks listing all the marked points: angular and reciprocal space coordinates, azimuthal angels, integer coordinates and intensity values. Each operation writes the entire list of marked points.

Marked Point Coordinates

The "Zoom.ps", "Image.ps", "Image.tiff" and "Surface" options may be chosen at any time; the other options are grayed out and inactive until the appropriate data have been created.