


 h = plot3(s,option) : Plot a 2D/3D object as separate points or semi-transparent volume
   @iData/plot3 function to plot a 2D or 3D object
     2D objects are shown as separate points in one single color
     3D objects are shown as a semi-transparent volume
     The slice(a) method opens the interactive sliceomatic 3D viewer.
 input:  s: object or array (iData)
         option: global option for 2D and 3D plots: 
                 flat, interp, faceted (for shading)
                 transparent, light, clabel
                 axis tight, axis auto, view2, view3
                 painters (bitmap drawing), zbuffer (vectorial drawing)
 output: h: graphics object handles (cell)
 ex:     plot3(iData(peaks)); plot3(iData(flow));
 Version: Aug. 22, 2017
 See also iData, iData/plot, iData/slice, iData/contour3, iData/contourf
          iData/contour, iData/surf, iData/slice, iData/surfl, iData/surfc, iData/mesh