• NAME
• SYNPOSIS
• DESCRIPTION
  • Command:
  • Examples:

NAME

    Circle

SYNPOSIS

    use Carp;
    use GD;
    use WWPlot;
    use Fun;

DESCRIPTION

This module defines a circle which can be inserted as a stamp in a graph (WWPlot) object.

Command:

    $circle_object = new Circle( $center_pos_x, $center_pos_y, $radius, $border_color, 
     $fill_color);

Examples:

    Here is the code used to define the subroutines open_circle
    and closed_circle in PGgraphmacros.pl

        sub open_circle {
            my ($cx,$cy,$color) = @_;
            new Circle ($cx, $cy, 4,$color,'nearwhite');
        }

        sub closed_circle {
            my ($cx,$cy, $color) = @_;
            $color = 'black' unless defined $color;
            new Circle ($cx, $cy, 4,$color, $color);
        }

    $circle_object2 = closed_circle( $x_position, $y_position, $color );

    @circle_objects = $graph -> stamps($circle_object2);
    # puts a filled dot at ($x_position, $y_position) on the graph -- using real 
      world coordinates.

File path = /ww/webwork/pg/lib/Circle.pm

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