UCFFormat < SHIVA

---++ UCF Format

Universal Contour Files (UCF) is a format devised at [[http://www.loni.ucla.edu/][LONI]].
It is an ascii based file in the following format:

---++++Header

<verbatim>
<width=>
384
<height=>
256
<xrange=>
-200.000000 200.000000
<yrange=>
-200.000000 200.000000
<zrange=>
-200.000000 200.000000
<levels>
255
</verbatim>

   * *&lt;width=>* Number of horizontal pixels in the image on which the Ucf was drawn.
     Occasionally there may be two integer values specified.  <em>deprecated</em>
   * *&lt;height=>* Number of vertical pixels in the image on which the Ucf was drawn.
     Occasionally there may be two integer values specified.  <em>deprecated</em>
   * *&lt;xrange=>* the relaxed range of contour points, normally in microns.
   * *&lt;yrange=>* the relaxed range of contour points, normally in microns.
   * *&lt;zrange=>* the relaxed range of contour points, normally in microns.
   * *&lt;levels>* indicates the number of contour planes present in the file.  Each contour plane
     may contain several contours.

Immediately following the header are contours planes

---++++Contour

<verbatim>
<level number=>
0.000000
<point_num=>
256
<contour_data=>
-28.192158 0.121569 -43.811764 6.325370
   ...
   ...
   ...
<end of level>
</verbatim>

   * *&lt;level number=>* a value that is used to sort this contour plane, often representing the
     z-coordinate of the plane, but it is not required.
   * *&lt;point_num=>* starts a new contour within the plane with the number of expected points.
   * *&lt;contour_data=>* contains the 3D or 4D data values.  The 4-th dimension data is ignored  by SHIVA.

---++++End

Finally, a UCF file is ended with
<verbatim>
<end>
</verbatim>

There should be no empty lines as it may break some parsers, including SHIVA.
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