[PHP] GD help

[RClark]

Does anyone know if there is a newsgroup for help with GD commands?

Thanks,
RC



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[PHP] GD help

[Angerer, Chad]

I am having some problems generating images with GD.  I am using GD 1.6.2
and trying to create a .png image.  I know it works.  I have created just a
generic graphic without trying to put variables into it and am hoping
someone can help me on this one.  Here is some code snippet

// here is my gd.php file to create the image

?

Header ( Content-Type: image/png );   

$im  =  ImageCreate ( 10,  200 );   
$red  =  ImageColorAllocate ( $im,  255,  0,  0 );   
$white  =  ImageColorAllocate ( $im ,  255,  255,  255 );   
$blue  =  ImageColorAllocate ( $im ,  0 ,  0 ,  255 );   
$gray  =  ImageColorAllocate ( $im , 0xC0, 0xC0 , 0xC0 );   

ImageFill ( $im , 0 , 0 , $gray );   
ImageFilledRectangle ( $im , 0 ,$bluehg, 3, 200, $blue );   
ImageFilledRectangle ( $im , 6, $redhg, 10, 200, $red );   

// write the image
ImagePNG( $im ); 

// clean up the mess
ImageDestroy($im);
?

// here is the function that I use to determine the attributes of the image

// create a function to call gd.php
function graphic($blueval, $redval)
{
$pctrd = round($blueval*100, 1);
$pctbl = round($redval*100, 1);
$blueval = ($blueval * 200);
$redval = ($redval * 200);

echo table
tr
td
align=\center\$pctbl%/td
tdimg
src=\gd.php?bluehg=$bluevalredhg=$redval\ height=\100\ //td
td
align=\center\$pctrd/td
/tr
/table;
}

On the page I get a broken image.  If I view the source I see the image is
being called with params.

Any help would be appreciated.

Thanks.

Chad

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Re: [PHP] GD help

[jeremy brand]

Hi Chad,

You can follow my example at:
http://www.nirvani.net/software/image_create/

Hope this helps.
Jeremy Brand

Jeremy Brand :: Sr. Software Engineer :: +393485323988 :: [EMAIL PROTECTED]
http://www.JeremyBrand.com/Jeremy/Brand/Jeremy_Brand.html for more
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On Fri, 13 Jul 2001, the following spilled from the mind of Angerer, Chad:

 Date: Fri, 13 Jul 2001 11:13:47 -0500
 From: Angerer, Chad [EMAIL PROTECTED]
 To: '[EMAIL PROTECTED]' [EMAIL PROTECTED]
 Subject: [PHP] GD help

 I am having some problems generating images with GD.  I am using GD 1.6.2
 and trying to create a .png image.  I know it works.  I have created just a
 generic graphic without trying to put variables into it and am hoping
 someone can help me on this one.  Here is some code snippet

 // here is my gd.php file to create the image

 ?

 Header ( Content-Type: image/png );

 $im  =  ImageCreate ( 10,  200 );
 $red  =  ImageColorAllocate ( $im,  255,  0,  0 );
 $white  =  ImageColorAllocate ( $im ,  255,  255,  255 );
 $blue  =  ImageColorAllocate ( $im ,  0 ,  0 ,  255 );
 $gray  =  ImageColorAllocate ( $im , 0xC0, 0xC0 , 0xC0 );

 ImageFill ( $im , 0 , 0 , $gray );
 ImageFilledRectangle ( $im , 0 ,$bluehg, 3, 200, $blue );
 ImageFilledRectangle ( $im , 6, $redhg, 10, 200, $red );

 // write the image
 ImagePNG( $im );

 // clean up the mess
 ImageDestroy($im);
 ?

 // here is the function that I use to determine the attributes of the image

 // create a function to call gd.php
 function graphic($blueval, $redval)
 {
   $pctrd = round($blueval*100, 1);
   $pctbl = round($redval*100, 1);
   $blueval = ($blueval * 200);
   $redval = ($redval * 200);

   echo table
   tr
   td
 align=\center\$pctbl%/td
   tdimg
 src=\gd.php?bluehg=$bluevalredhg=$redval\ height=\100\ //td
   td
 align=\center\$pctrd/td
   /tr
   /table;
 }

 On the page I get a broken image.  If I view the source I see the image is
 being called with params.

 Any help would be appreciated.

 Thanks.

 Chad






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