gd_polygon

Draw a polygon.

GD_POLYGON

NAME

gd_polygon - Draws a polygon.

SYNOPSIS

gd_polygon (gd:variable, polygon:array, color:"string", closed:true|false,filled:true|false, thickness:integer, coloridx:integer);

DESCRIPTION

This function is used to draw a polygon.

PARAMETERS

gd: Variables must hold a returned value from gd_new.

x1,y1: First point in image.

x2,y2: Second point in image.

color: A color in the format #000000 or #255,255,255.

coloridx: A color index gotten from gd_get_color.

thickness: Thickness of line in pixel. By default, it is 4.

polygon: An array of the form [ [x1,y1], [x2,y2], … ].

closed: Closes the polygon if not closed. By default, it is true.

filled: Fills the polygon. By default, it is false.

RETURN

Nothing.

MODULES

To use this module, you must specify the following in /usr/local/website/site.conf:

Module gd {
        Library : "/usr/local/lib/libsngd.so"
        Init : "sngd_init"
}

EXAMPLES

res=<{
        %include "/includes/gd.sn";
        remove("/html/images/print.jpg");
        im=gd_new(width:1000,height:1000,bgcolor:Gray,truecolor:true);
        red = gd_get_color(gd:im, color:Red);
        cyan = gd_get_color(gd:im, color:Cyan);
        white = gd_get_color(gd:im, color:White);
        gd_polygon(gd:im, polygon:[ [10,10], [10, 500], [500, 500], [500, 10]], color:Yellow, thickness:2,filled:true);
        gd_polygon(gd:im, polygon:[ [40,40], [200,259], [332, 644], [500, 10], [700,700]], color:Red, thickness:1,closed:false);
        gd_write(gd:im,format:"jpg",filename:"/html/images/print.jpg",quality:100);

AUTHOR

Written by Pierre Laplante and Caroline Laplante, <laplante@sednove.com>

MODIFICATIONS

1.0 2014-09-09 21:24:14 laplante@sednove.com

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