[PHP] Calculate string width using some font.
Hey list! :)
I've got a problem trying to calculate a string width using an X font
with some Y font size to use in an svg-to-pdf conversion.
This is what I try to do:
1. Create a dummy image.
2. Set the text there using font X and the font size Y (it seems that
when I create the image it renders it at 72dpi so I need to reduce it at
300dpi)
I'm not sure what the imagettftext() function returns, are those values
measured in pixels ? I read in some page that the proportion to reduce
the image at 300dpi is reduce the size to 24% of its original size.
http://www.printingforless.com/resolution.html
That's the code:
***
// Create dummy image.
$rsc_image = imagecreate( 1, 1 );
// Set image.
$arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
./fonts/{$str_font_file}, $str_variable_value );
// Destroy dummy image.
imagedestroy( $rsc_image );
// Set structure of widths.
// TODO: Magik numbers.
$arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) / 100 );
***
Thx for any help.
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Re: [PHP] Calculate string width using some font.
Juan Felipe Alvarez Saldarriaga wrote:
Hey list! :)
my name's not list but what the heck:
take a look at these function, they should light the way:
http://php.net/manual/en/function.imageftbbox.php
http://php.net/manual/en/function.imagepsbbox.php
http://php.net/manual/en/function.imagettfbbox.php
http://php.net/imageloadfont
everything is pixels.
there is no dpi - your screen printer has a certain dpi and that determine
how big the image displays on either.
okay not much help - I had brain freeze half thru.
I've got a problem trying to calculate a string width using an X font
with some Y font size to use in an svg-to-pdf conversion.
This is what I try to do:
1. Create a dummy image.
2. Set the text there using font X and the font size Y (it seems that
when I create the image it renders it at 72dpi so I need to reduce it at
300dpi)
I'm not sure what the imagettftext() function returns, are those values
measured in pixels ?
yes.
I read in some page that the proportion to reduce
the image at 300dpi is reduce the size to 24% of its original size.
http://www.printingforless.com/resolution.html
That's the code:
***
// Create dummy image.
$rsc_image = imagecreate( 1, 1 );
// Set image.
$arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
./fonts/{$str_font_file}, $str_variable_value );
// Destroy dummy image.
imagedestroy( $rsc_image );
// Set structure of widths.
// TODO: Magik numbers.
$arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) / 100 );
***
Thx for any help.
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To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Calculate string width using some font.
Jochem Maas wrote:
Juan Felipe Alvarez Saldarriaga wrote:
Hey list! :)
my name's not list but what the heck:
take a look at these function, they should light the way:
http://php.net/manual/en/function.imageftbbox.php
http://php.net/manual/en/function.imagepsbbox.php
http://php.net/manual/en/function.imagettfbbox.php
http://php.net/imageloadfont
everything is pixels.
there is no dpi - your screen printer has a certain dpi and that determine
how big the image displays on either.
okay not much help - I had brain freeze half thru.
K, np, Ill try use imagettfbbox() function instead.
Thx.
I've got a problem trying to calculate a string width using an X font
with some Y font size to use in an svg-to-pdf conversion.
This is what I try to do:
1. Create a dummy image.
2. Set the text there using font X and the font size Y (it seems that
when I create the image it renders it at 72dpi so I need to reduce it at
300dpi)
I'm not sure what the imagettftext() function returns, are those values
measured in pixels ?
yes.
I read in some page that the proportion to reduce
the image at 300dpi is reduce the size to 24% of its original size.
http://www.printingforless.com/resolution.html
That's the code:
***
// Create dummy image.
$rsc_image = imagecreate( 1, 1 );
// Set image.
$arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
./fonts/{$str_font_file}, $str_variable_value );
// Destroy dummy image.
imagedestroy( $rsc_image );
// Set structure of widths.
// TODO: Magik numbers.
$arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) / 100 );
***
Thx for any help.
--
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To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Calculate string width using some font.
pdf_stringwidth() may help you
regards fra*
Hey list! :)
my name's not list but what the heck:
take a look at these function, they should light the way:
http://php.net/manual/en/function.imageftbbox.php
http://php.net/manual/en/function.imagepsbbox.php
http://php.net/manual/en/function.imagettfbbox.php
http://php.net/imageloadfont
everything is pixels.
there is no dpi - your screen printer has a certain dpi and that
determine
how big the image displays on either.
okay not much help - I had brain freeze half thru.
K, np, Ill try use imagettfbbox() function instead.
Thx.
I've got a problem trying to calculate a string width using an X font
with some Y font size to use in an svg-to-pdf conversion.
This is what I try to do:
1. Create a dummy image.
2. Set the text there using font X and the font size Y (it seems that
when I create the image it renders it at 72dpi so I need to reduce it
at
300dpi)
I'm not sure what the imagettftext() function returns, are those
values
measured in pixels ?
yes.
I read in some page that the proportion to reduce
the image at 300dpi is reduce the size to 24% of its original size.
http://www.printingforless.com/resolution.html
That's the code:
***
// Create dummy image.
$rsc_image = imagecreate( 1, 1 );
// Set image.
$arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
./fonts/{$str_font_file}, $str_variable_value );
// Destroy dummy image.
imagedestroy( $rsc_image );
// Set structure of widths.
// TODO: Magik numbers.
$arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) /
100 );
***
Thx for any help.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Calculate string width using some font.
setcookie wrote:
pdf_stringwidth() may help you
regards fra*
Yea I saw that too but you know, pdflib is not free.
Hey list! :)
my name's not list but what the heck:
take a look at these function, they should light the way:
http://php.net/manual/en/function.imageftbbox.php
http://php.net/manual/en/function.imagepsbbox.php
http://php.net/manual/en/function.imagettfbbox.php
http://php.net/imageloadfont
everything is pixels.
there is no dpi - your screen printer has a certain dpi and that
determine
how big the image displays on either.
okay not much help - I had brain freeze half thru.
K, np, Ill try use imagettfbbox() function instead.
Thx.
I've got a problem trying to calculate a string width using an X font
with some Y font size to use in an svg-to-pdf conversion.
This is what I try to do:
1. Create a dummy image.
2. Set the text there using font X and the font size Y (it seems that
when I create the image it renders it at 72dpi so I need to reduce it
at
300dpi)
I'm not sure what the imagettftext() function returns, are those
values
measured in pixels ?
yes.
I read in some page that the proportion to reduce
the image at 300dpi is reduce the size to 24% of its original size.
http://www.printingforless.com/resolution.html
That's the code:
***
// Create dummy image.
$rsc_image = imagecreate( 1, 1 );
// Set image.
$arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
./fonts/{$str_font_file}, $str_variable_value );
// Destroy dummy image.
imagedestroy( $rsc_image );
// Set structure of widths.
// TODO: Magik numbers.
$arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) /
100 );
***
Thx for any help.
--
PHP General Mailing List (http://www.php.net/)
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Re: [PHP] Calculate string width using some font.
At 2:54 PM -0500 2/5/07, Juan Felipe Alvarez Saldarriaga wrote: setcookie wrote: pdf_stringwidth() may help you regards fra* Yea I saw that too but you know, pdflib is not free. Yes, but there's a free version -- Google fpdf. tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Calculate string width using some font.
On Mon, February 5, 2007 11:22 am, Juan Felipe Alvarez Saldarriaga wrote:
1. Create a dummy image.
2. Set the text there using font X and the font size Y (it seems that
when I create the image it renders it at 72dpi so I need to reduce it
at
300dpi)
When I did a 300-dpi PDF thingie, I defined a variable $resolution
which was 304.8, and multiplied it by the inches I wanted to get 300
dpi out...
I don't know *how* I got the 304.8 number...
I'm not sure what the imagettftext() function returns, are those
values
measured in pixels ?
I believe those are in raw pixels, yes.
I read in some page that the proportion to reduce
the image at 300dpi is reduce the size to 24% of its original size.
You'd want to make it 300/72 times as large as you would think?
Only I obviously didn't do that, so I dunno...
http://www.printingforless.com/resolution.html
That's the code:
***
// Create dummy image.
$rsc_image = imagecreate( 1, 1 );
// Set image.
$arr_ftx = imagettftext( $rsc_image, $int_font_size, 0, 0, 0, -1,
./fonts/{$str_font_file}, $str_variable_value );
// Destroy dummy image.
imagedestroy( $rsc_image );
// Set structure of widths.
// TODO: Magik numbers.
$arr_variable_pixels[$str_variable_index] = ( ( $arr_ftx[2] * 24 ) /
100 );
I think you've got the percentage backwards here, as it's 24% to go
from 300 to 72... You want to force a 72 DPI thing to end up being
scalable down by 24% to end up at 300.
--
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Know what I want?
I want you to buy a CD from some starving artist.
http://cdbaby.com/browse/from/lynch
Yeah, I get a buck. So?
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Re: [PHP] Calculate string width using some font.
On Mon, February 5, 2007 12:04 pm, Jochem Maas wrote: there is no dpi - your screen printer has a certain dpi and that determine how big the image displays on either. This is true, but ultimately, if you want the dang thing to print out at 300 DPI, then you want enough pixels to make that look pretty, and you want to multiply everything by the right number to get that many pixels so when it doesn't print, it doesn't suck. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Calculate string width using some font.
On Mon, February 5, 2007 1:54 pm, Juan Felipe Alvarez Saldarriaga wrote: setcookie wrote: pdf_stringwidth() may help you regards fra* Yea I saw that too but you know, pdflib is not free. Depends on your usage and if you need the PDI part or not... PDI == Smush two PDF together. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
