// Last edited on 2019-11-22 04:21:08 by jstolfi

#macro show_volume(label, dx, dy, dz, dens)
  // Prints a message with the {label} and the dimensions of some free storage volume.
  // Usually {dx} is width, {dy} is depth, {dz} is height.
  // Also prints the volume in liters, assuming that the 
  // dimensions are in mm.  If {dens > 0} also computes
  // the weight assuming density of {dens} kg/L.
  
  #local vol = dx*dy*dz/1000000; // Volume in liters.
  #debug concat("\n!! volume ", str(dx,6,1), " x ", str(dy,6,1), " x ", str(dz,6,1), " = ", str(vol,6,3))
  #if (dens > 0)
    #local wt = vol*dens;
    #debug concat(" weight = ", str(wt,6,3))
  #end
  #debug concat(" ", label, "\n")
  
#end