NAME

naptosai - NAP to SAI format conversion.

CONTENTS

Syntax
Description
Examples
Bugs
Copyright

naptosai [arguments] [file]

The program expects to read an AIM header, and interprets input as one largeframe in column-wise format (eg output from genbmm, gennap, etc.), to bedivided into input frames according to the given options.Each frame is output in row-wise format (eg as if output from gensai).

The options "start" and "length" specify the input file.The special option value length=max specifies all the input file fromthe given start to its end.The options "width" and "frstep" specify the framing.The width option is the width of each frame and the frstep option is theframeshift between successive frames in the input file.The special option value width=max specifies the input framewidth as equalto the given input file length, (and if this is also "max", then theinput framewidth is the remainder of the input file).If frstep=0, then the output is one frame of given width from the given startof the input file. For example, use naptosai with width=max and frstep=0to produce one SAI frame the same size as the input NAP.

A new header is constructed, and most options in the input header are copiedto the output header. Some parts of the header are changed for the outputformat: (frames, frameshift, framewidth, frameheight, framebytes).

1. To convert a nap or a bmm output to a single frame of sai output:
gennap length=64 output=stdout file | naptosai width=32ms frstep=0 > file.saigensai top=1000 useprevious=on file
genbmm output=stdout file | naptosai  > file.saigensai bottom=-100 useprevious=on file
  This uses special case of zero frstep to generate one frame of output with  the given width. The default width is the given length, and the default  length is the remainder of the input file. If the width=length, then the  frstep is zero by default, and therefore the default process, (ie with no  arguments), converts the whole of the input to a single SAI frame.
  Note, certain display parameters have different default values for different  applications. The SAI display parameters should be set to the appropriate  values, in order to plot the SAI on the same scale. For example:
    When the source application is NAP, set gensai top=1000    When the source application is BMM, set gensai bottom=-100
2. To convert a nap output to multiple frames of sai output:
gennap length=40 output=stdout file | naptosai width=32ms frstep=0.2ms > file.saigensai top=1000 useprevious=on file
   The sai output can be plotted as a spiral, but it is best to set the   display parameters as follows:
gennap length=40 output=stdout dencf=1 width=500 height=500 file |       naptosai width=32ms frstep=0.2ms > file.saigenspl useprevious=on pensize=2 file
3. To convert a nap output to a sai format bitmap, to display an animated   stream:
gennap length=40 output=stdout file | naptosai width=32ms frstep=0.2ms > file.saigensai top=1000 useprevious=on bitmap=on filereview file
  The same can be done for the spiral display:
gennap length=40 output=stdout dencf=1 width=500 height=500 file |       naptosai width=32ms frstep=0.2ms > file.saigenspl useprevious=on pensize=2 bitmap=on filereview file
  The plots show the nap moving though 8ms (40-32), in steps of 0.2ms,  first in rectangular display, then in spiral-mapped display.

None yet.

Copyright (c) Applied Psychology Unit, Medical Research Council, 1995

Permission to use, copy, modify, and distribute this software without feeis hereby granted for research purposes, provided that this copyrightnotice appears in all copies and in all supporting documentation, and thatthe software is not redistributed for any fee (except for a nominalshipping charge). Anyone wanting to incorporate all or part of thissoftware in a commercial product must obtain a license from the MedicalResearch Council.

The MRC makes no representations about the suitability of thissoftware for any purpose. It is provided "as is" without express orimplied warranty.

THE MRC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDINGALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALLTHE A.P.U. BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGESOR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THISSOFTWARE.