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C Library Functions  - polyline2 (3)

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NAME

polyline2(3f) - [M_drawplus] - draw an unclosed polyline in the XY plane (LICENSE:MIT)

CONTENTS

Synopsis
Description
Options
Example
Author
License

SYNOPSIS

subroutine polyline2(arrx,arry)

     integer,intent(in)          :: arrx(:)
     integer,intent(in),optional :: arry(:)

DESCRIPTION

Given either a single array composed of pairs <x(i),y(i)> of values defining points or an X and Y array move to first point and draw to remaining points using current line style.

OPTIONS

ARRX	If ARRY is present, an array of X values
ARRY	An optional array of Y values

EXAMPLE

Sample program:

     program demo_polyline2
     use M_draw
     use M_drawplus, only : polyline2
     implicit none
     integer :: ipaws
        call prefsize(300,300)
        call vinit(’ ’)
        call ortho2(-2.0,2.0,-2.0,2.0)
        call color(2)
        call linewidth(100)
        call polyline2([-0.5,-0.5, -0.5,+0.5, +0.5,+0.5, +0.5,-0.5])
        call color(4)
        call polyline2( [-1,-1,+1,+1,-1] , &  ! X values
                      & [-1,+1,+1,-1,-1] )    ! Y values
        ipaws=getkey()
        call vexit()
     end program demo_polyline2

AUTHOR

John S. Urban

LICENSE

MIT License

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Nemo Release 3.1

polyline2 (3)

June 29, 2025

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