hai monks, i have one more clarification on creating graph images, i want ot set heading for the graph which i was create. i tried by this way 

print "Content-type: image/png\n\n";
my @data = ([@xaxiss],[@yaxiss]);
use GD::Graph::bars;
use GD::Image;
$width=$xaxiss[0];
$height=$xaxiss[$#xaxiss];
#image -1 graph
my $mygraph = GD::Graph::bars->new(800,600);
#  $mygraph->set_legend('Show gene details');
$mygraph->set(
    title => "$pairs[0]",
    x_label     => "@xaxis",
    x_labels_vertical => 90,
    bar_width        => 10,
    bar_spacing => 1,
    show_values => 1,
    dclrs       => ['lorange'] ,
    axislabelclr => 'red', 
#     logo => 'bgcolor1.png', /corect on/
#     logo_resize =>5.5, 
    transparent => 1,
    shadowclr => 'gray',
    shadow_depth =>3,
    borderclr=>'green',
   transparent       => '0',
   bgclr             => 'lbrown',
   boxclr            => 'lbrown',
   fgclr             => 'blue',
   cycle_clrs        => '1',
   ) or warn $mygraph->error;

$mygraph->set_title_font(GD::gdGiantFont);
#$mygraph->set_legend_font(GD::gdGiantFont);
$mygraph->set_x_axis_font(GD::gdMediumBoldFont);
$mygraph->set_y_axis_font(GD::gdMediumBoldFont);
$mygraph->set_values_font(GD::gdSmallFont);
my $myimage = $mygraph->plot(\@data) or die $mygraph->error;
open(OUT,">/tmp/img1.png");
binmode OUT;
print OUT $myimage->png;
close OUT;
&head_1;
print $myimage->png;
#image-2 for heading
sub head_1{
sub InitColors {
    my($im) = $_[0];
    # Allocate colors
    $white = $im->colorAllocate(255,255,255);
    $black = $im->colorAllocate(0,0,0);
    $red = $im->colorAllocate(255,0,0);
    $blue = $im->colorAllocate(0,0,255);
    $green = $im->colorAllocate(0, 255, 0);

    $brown = $im->colorAllocate(255, 0x99, 0);
    $violet = $im->colorAllocate(255, 0, 255);
    $yellow = $im->colorAllocate(255, 255, 0);
}
use GD;

# Create a new image
$im = new GD::Image(500, 80);

# Allocate some colors
&InitColors($im);

# Make the background transparent and interlaced
$im->transparent($white);
$im->interlaced('true');

$im->rectangle(0, 0, 500, 79, $white);

$x1 = 10;
$y1 = 20;

# Draw text in a TTF font
# $font = "/usr/X11R6/lib/X11/fonts/TTF/luxisri.ttf";
# $im->stringFT($red, $font, 15, 0, $x1, $y1, "A TTF font");

#$anotherfont = "/usr/share/fonts/default/TrueType/starbats.ttf";
$anotherfont = "/usr/share/fonts/ko/TrueType/hline.ttf";
$im->stringFT($black, $anotherfont, 30, 0, $x1, $y1 + 40, "Show gene d
+etails");

# Open a file for writing 
open(PICTURE, ">/tmp/picture.png") or die("Cannot open file for writin
+g");

# Make sure we are writing to a binary stream
#binmode PICTURE;

# Convert the image to PNG and print it to the file PICTURE
#print PICTURE $im->png;
print $im->png;
close PICTURE;
}

[download]

in the above code the first image-1 indicate the bar chart generated for the data and the second one image-2 which is called by using subroutine is the heading for that graph, but while using this method only one image is displaying on the screen, is their any sugession for this or any different idea on about it.

------------------------------------------------------

hi monks, i tried to make the two separate images as single image by changing the code as follows is it correct. 

--new code--
print "Content-type: image/png\n\n";
sub InitColors {
    my($im) = $_[0];
    # Allocate colors
    $white = $im->colorAllocate(255,255,255);
    $black = $im->colorAllocate(0,0,0);
    $red = $im->colorAllocate(255,0,0);
    $blue = $im->colorAllocate(0,0,255);
    $green = $im->colorAllocate(0, 255, 0);

    $brown = $im->colorAllocate(255, 0x99, 0);
    $violet = $im->colorAllocate(255, 0, 255);
    $yellow = $im->colorAllocate(255, 255, 0);
}
my @data = ([@xaxiss],[@yaxiss]);
use GD::Graph::bars;
use GD::Image;
$width=$xaxiss[0];
$height=$xaxiss[$#xaxiss];
#image -1 graph
my $mygraph = GD::Graph::bars->new(800,600);
$mygraph->set_legend('Show gene details');
--changed portion--
$anotherfont = "/usr/share/fonts/ko/TrueType/hline.ttf";
$mygraph->set_stringFT('black', $anotherfont, 30,40, "Show gene detail
+s");
---change ends---
$mygraph->set(
    title => "$pairs[0]",
    x_label     => "@xaxis",
    x_labels_vertical => 90,
    bar_width        => 10,
    bar_spacing => 1,
    show_values => 1,
    dclrs       => ['lorange'] ,
    axislabelclr => 'red', 
#     logo => 'bgcolor1.png', /corect on/
#     logo_resize =>5.5, 
    transparent => 1,
    shadowclr => 'gray',
    shadow_depth =>3,
    borderclr=>'green',
   transparent       => '0',
   bgclr             => 'lbrown',
   boxclr            => 'lbrown',
   fgclr             => 'blue',
   cycle_clrs        => '1',
   ) or warn $mygraph->error;

$mygraph->set_title_font(GD::gdGiantFont);
#$mygraph->set_legend_font(GD::gdGiantFont);
$mygraph->set_x_axis_font(GD::gdMediumBoldFont);
$mygraph->set_y_axis_font(GD::gdMediumBoldFont);
$mygraph->set_values_font(GD::gdSmallFont);
my $myimage = $mygraph->plot(\@data) or die $mygraph->error;
#open(OUT,">/tmp/img1.png");
#binmode OUT;
#print OUT $myimage->png;
#close OUT;
print $myimage->png;

[download]

while compiling this code it show the error message as follows, 
--Error code--
http://10.188.12.27/cgi-bin/msgs/siva_graph/
graph1cgi.pl?A_thaliana&2&1&7473&NC_003070sNC_003071&6973s4403&

[download]
by sanku thanks in advance any sugessions please?????

In reply to Using an image as a header with GD::Graph by sanku

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