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Manual Reference Pages  - prefposition (3)

NAME
prefposition(3f) - [M_draw:WINDOW_SETUP] Specify preferred position of window (LICENSE:PD)

CONTENTS

Synopsis
Description
Example

SYNOPSIS
subroutine prefposition(x, y) 

    integer,intent(in) :: x, y

DESCRIPTION
Specify the preferred position of the window opened by the *next* vinit in raster units or units of resolution, depending on the output device. The physical size of the units are generally device-specific -- For X11 Windows and PPM pixmaps the values would represent rasters. For vector output devices the number of "rasters" per inch varies.

EXAMPLE
Sample program: 

     program demo_prefposition
     use M_draw, only    : prefsize, vinit, ortho2, clear, getkey, prefposition
     use M_draw, only    : move2, draw2, vexit, color
     use M_draw,    only  : D_BLACK,   D_WHITE
     use M_draw,    only  : D_RED,     D_GREEN,    D_BLUE
     use M_draw,    only  : D_YELLOW,  D_MAGENTA,  D_CYAN
     implicit none
     integer :: ipaws


     call prefsize(60,40)
     call prefposition(100,100)


     call vinit(’ ’)         ! start graphics using device $M_DRAW_DEVICE
     call ortho2(-300.0,300.0,-200.0,200.0)
     call color(D_BLACK)
     call clear()
     call color(D_RED)
     call move2(-300.0,-200.0)
     call draw2(300.0,200.0)
     call move2(300.0,-200.0)
     call draw2(-300.0,200.0)
     ipaws=getkey()
     call vexit()


     end program demo_prefposition

prefposition (3) March 11, 2021
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