AFNI program: SurfaceMetrics

Error Main_SUMA_SurfaceMetrics:
 Too few parameters

Usage: SurfaceMetrics <-Metric1> [[-Metric2] ...] <-i_TYPE inSurf> 
                  [<-sv SurfaceVolume [VolParam for sf surfaces]>]
                  [-tlrc] [<-prefix prefix>]

Outputs information about a surface's mesh

   -Metric1: Replace -Metric1 with the following:
      -vol: calculates the volume of a surface.
            Volume unit is the cube of your surface's
            coordinates unit, obviously.
            Volume's sign depends on the orientation
            of the surface's mesh.
            Make sure your surface is a closed one
            and that winding is consistent.
            Use SurfQual to check the surface.
            If your surface's mesh has problems,
            the result is incorrect. 
            Volume is calculated using Gauss's theorem,
            see [Hughes, S.W. et al. 'Application of a new 
            discreet form of Gauss's theorem for measuring 
            volume' in Phys. Med. Biol. 1996].
      -conv: output surface convexity at each node.
         Output file is prefix.conv. Results in two columns:
         Col.0: Node Index
         Col.1: Convexity
         This is the measure used to shade sulci and gyri in SUMA.
         C[i] = Sum(dj/dij) over all neighbors j of i
         dj is the distance of neighboring node j to the tangent plane at i
         dij is the length of the segment ij
      -area: output area of each triangle. 
         Output file is prefix.area. Results in two columns:
         Col.0: Triangle Index
         Col.1: Triangle Area
      -curv: output curvature at each node.
         Output file is prefix.curv. Results in nine columns:
         Col.0: Node Index
         Col.1-3: vector of 1st principal direction of surface
         Col.4-6: vector of 2nd principal direction of surface
         Col.7: Curvature along T1
         Col.8: Curvature along T2
         Curvature algorithm by G. Taubin from: 
         'Estimating the tensor of curvature of surface 
         from a polyhedral approximation.'
      -edges: outputs info on each edge. 
         Output file is prefix.edges. Results in five columns:
         Col.0: Edge Index (into a SUMA structure).
         Col.1: Index of the first node forming the edge
         Col.2: Index of the second node forming the edge
         Col.3: Number of triangles containing edge
         Col.4: Length of edge.

      You can use any or all of these metrics simultaneously.

   -i_TYPE inSurf: Specify the type and name of the input surface.
                   See ConvertSurface -help for more info.

   -sv SurfaceVolume [VolParam for sf surfaces]: Specify a surface volume
                   for surface alignment. See ConvertSurface -help for more info.

   -tlrc: Apply Talairach transform to surface.
                   See ConvertSurface -help for more info.

   -prefix prefix: Use prefix for output files. (default is prefix of inSurf)
  Common Debugging Options:
   [-trace]: Turns on In/Out debug and Memory tracing.
             For speeding up the tracing log, I recommend 
             you redirect stdout to a file when using this option.
             For example, if you were running suma you would use:
             suma -spec lh.spec -sv ... > TraceFile
             This option replaces the old -iodbg and -memdbg.
   [-TRACE]: Turns on extreme tracing.
   [-nomall]: Turn off memory tracing.
   [-yesmall]: Turn on memory tracing (default).
  NOTE: For programs that output results to stdout
    (that is to your shell/screen), the debugging info
    might get mixed up with your results.
 

++ SUMA version 2.5000, June 10 2004

Compile Date:
   Aug  3 2004

       Ziad S. Saad SSCC/NIMH/NIH ziad@nih.gov 
       Mon May 19 15:41:12 EDT 2003