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C Library Functions  - rdraw2 (3)

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NAME

rdraw2(3f) - [M_draw:DRAW] Relative draw from current position to given point (LICENSE:PD)

CONTENTS

Synopsis
Description
Options
Examples

SYNOPSIS

subroutine rdraw2(deltax, deltay)

     real,intent(in) :: deltax, deltay

DESCRIPTION

Relative draw from current position to specified point using current color and line width. Updates current position to new point. (x, y) is a point in world coordinates.

OPTIONS

deltax and deltay are offsets in world units.

X	new X position
Y	new Y position

EXAMPLES

Sample program:

     program demo_rdraw2
     use M_draw, only: vinit, prefsize, ortho2,linewidth,getkey
     use M_draw, only: clear, move2, rdraw2, 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(200,200)
     call vinit(’ ’) ! start graphics using device $M_DRAW_DEVICE
     call ortho2(-55.0, 55.0, -55.0, 55.0)
     call linewidth(400)
     call color(D_WHITE)
     call clear()

     call color(D_RED)
     call move2(-50.0,0.0)
     call square(50.0)

     call linewidth(200)
     call color(D_GREEN)
     call move2(  0.0,-50.0)
     call square(50.0)

     ipaws=getkey()
     call vexit()

     contains

     subroutine square(side)
     real,intent(in) :: side
     call rdraw2( side,   0.0)
     call rdraw2(  0.0,  side)
     call rdraw2(-side,   0.0)
     call rdraw2(  0.0, -side)
     end subroutine square

     end program demo_rdraw2

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Nemo Release 3.1

rdraw2 (3)

February 23, 2025

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