d_splot3D Subroutine

subroutine d_splot3D(pname,X1,X2,Y,xmin,xmax,ymin,ymax,nosurface,wlines,nlines)
  integer                              :: i,j,Nx1,Nx2,count,Nl
  character(len=*)                     :: pname
  real(8),dimension(:)                 :: X1
  real(8),dimension(:)                 :: X2
  real(8),dimension(size(X1),size(X2)) :: Y
  real(8),optional                     :: xmin,xmax,ymin,ymax
  integer,optional                     :: nlines
  logical,optional                     :: wlines,nosurface
  real(8)                              :: X1min,X1max
  real(8)                              :: X2min,X2max
  character(len=12)                    :: minx,miny,maxx,maxy
  character(len=256)                   :: fname,dname
  fname=get_filename(pname)
  dname=get_filepath(pname)
  Nx1=size(X1) ; Nx2=size(X2)
  Nl=5; if(present(nlines))Nl=nlines
  open(719,file=adjustl(trim(pname)))
  if(present(wlines))open(720,file=adjustl(trim(pname))//"_withlines")
  do i=1,Nx1
     count=mod(i,Nl)
     do j=1,Nx2
        write(719,*)X1(i),X2(j),Y(i,j)
        if(present(wlines).AND.count==0)write(720,*)X1(i),X2(j),Y(i,j)
     enddo
     write(719,*)""
     if(present(wlines))write(720,*)""
     if(present(wlines))write(720,*)""
  enddo
  close(719)
  X1min=minval(X1);if(present(xmin))X1min=xmin
  X1max=maxval(X1);if(present(xmax))X1max=xmax
  X2min=minval(X2);if(present(ymin))X2min=ymin
  X2max=maxval(X2);if(present(ymax))X2max=ymax
  write(minx,"(f12.4)")X1min
  write(maxx,"(f12.4)")X1max
  write(miny,"(f12.4)")X2min
  write(maxy,"(f12.4)")X2max
  if(present(wlines))close(720)

  open(10,file=adjustl(trim(pname))//"_map.gp")
  write(10,*)"set term wxt"
  write(10,*)"set title '"//trim(fname)//"'"
  write(10,*)"set pm3d map"
  write(10,*)"set size square"
  write(10,*)"set xrange ["//trim(adjustl(trim(minx)))//":"//trim(adjustl(trim(maxx)))//"]"
  write(10,*)"set yrange ["//trim(adjustl(trim(miny)))//":"//trim(adjustl(trim(maxy)))//"]"
  write(10,*)"splot '"//trim(fname)//"'"
  write(10,*)"#set term png size 1920,1280"
  write(10,*)"#set out '"//adjustl(trim(fname))//".png'"
  write(10,*)"#rep"
  !
  close(10)
  if(present(nosurface).AND.nosurface)return
  open(10,file=adjustl(trim(pname))//"_surface.gp")
  write(10,*)"set term wxt"
  write(10,*)"set title '"//trim(fname)//"'"
  write(10,*)"set nokey"
  write(10,*)"set grid"
  write(10,*)"set view 50,10,1,1"
  write(10,*)"splot '"//trim(fname)//"' with pm3d"
  if(present(wlines))write(10,*)"rep '"//trim(pname)//"_withlines' with lines"
  write(10,*)"#set term png size 1920,1280"
  write(10,*)"#set out '"//adjustl(trim(fname))//".png'"
  write(10,*)"#rep"
  close(10)
end subroutine d_splot3D