Getting the width and height of gif files
This WebDNA talk-list message is from 2000
It keeps the original formatting.
numero = 30842
interpreted = N
texte = This one always bothered me, so I took a whack at it this morning.The following code should pull the width and height values from all the gif files it finds in the same directory that the template is in -- WITH the following exceptions:1) For all gifs 255 x 255 and under, there should be no problems.2) Any width or height value that's a multiple of 256 will be over-reported as 32 pixels larger (ie: 256 becomes 288, 512 = 544, 768 = 800, etc)3) Any width or height value falling between 8192 and 8448 will be grossly *under*-reported.Of course, there wouldn't be *any* problems if WebCat didn't clean null characters (remind me again why we're still saddled with this legacy because of PageMill? ; ) but still, if you can live with the limitations, I thought the code may be of some use until WebCat 4 comes along.What ever happened to the [includeRAW] (not [include file&raw=T]) that Grant had mentioned two years back? You'll need a hexadecimal to decimal conversion table to run this. One is available at: http://toastdesign.com/hexToDec.txt
| Filename | Width | Height | Image |
[listfiles /][showif [getchars start=1&end=4&from=end][filename][/getchars]=.gif][text]theFile=[include file=[filename]][/text] [math show=f]loW=[convertchars db=hexToDec.txt][getchars start=7&end=7][theFile][/getchars][/convertchars][/math] [math show=f]hiW=[convertchars db= hexToDec.txt][getchars start=8&end=8][theFile][/getchars][/convertchars][/math] [math show=f]loH=[convertchars db= hexToDec.txt][getchars start=9&end=9][theFile][/getchars][/convertchars][/math] [math show=f]hiH=[convertchars db= hexToDec.txt][getchars start=10&end=10][theFile][/getchars][/convertchars][/math][showif [hiW]!32][math show=f]width=[hiW]*256+[loW][/math][/showif] [hideif [hiW]!32][math show=f]width=[loW][/math][/hideif] [showif [hiH]!32][math show=f]height=[hiH]*256+[loH][/math][/showif] [hideif [hiH]!32][math show=f]height=[loH][/math][/hideif] | [filename] | [width] | [height] |  |
[/showif] [/listfiles]
Rob Marquardt Designer/Resident Wirehead Toast Design800 Washington Avenue North Minneapolis MN 55401 612.330.9863 v 612.321.9424 f www.toastdesign.com ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list
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This one always bothered me, so I took a whack at it this morning.The following code should pull the width and height values from all the gif files it finds in the same directory that the template is in -- WITH the following exceptions:1) For all gifs 255 x 255 and under, there should be no problems.2) Any width or height value that's a multiple of 256 will be over-reported as 32 pixels larger (ie: 256 becomes 288, 512 = 544, 768 = 800, etc)3) Any width or height value falling between 8192 and 8448 will be grossly *under*-reported.Of course, there wouldn't be *any* problems if WebCat didn't clean null characters (remind me again why we're still saddled with this legacy because of PageMill? ; ) but still, if you can live with the limitations, I thought the code may be of some use until WebCat 4 comes along.What ever happened to the [includeRAW] (not [include file&raw=T]) that Grant had mentioned two years back? You'll need a hexadecimal to decimal conversion table to run this. One is available at: http://toastdesign.com/hexToDec.txt | Filename | Width | Height | Image |
[listfiles /][showif [getchars start=1&end=4&from=end][filename][/getchars]=.gif][text]theFile=[include file=[filename]][/text] [math show=f]loW=[convertchars db=hexToDec.txt][getchars start=7&end=7][theFile][/getchars][/convertchars][/math] [math show=f]hiW=[convertchars db= hexToDec.txt][getchars start=8&end=8][theFile][/getchars][/convertchars][/math] [math show=f]loH=[convertchars db= hexToDec.txt][getchars start=9&end=9][theFile][/getchars][/convertchars][/math] [math show=f]hiH=[convertchars db= hexToDec.txt][getchars start=10&end=10][theFile][/getchars][/convertchars][/math][showif [hiW]!32][math show=f]width=[hiW]*256+[loW][/math][/showif] [hideif [hiW]!32][math show=f]width=[loW][/math][/hideif] [showif [hiH]!32][math show=f]height=[hiH]*256+[loH][/math][/showif] [hideif [hiH]!32][math show=f]height=[loH][/math][/hideif] | [filename] | [width] | [height] | |
[/showif] [/listfiles]
Rob Marquardt Designer/Resident Wirehead Toast Design800 Washington Avenue North Minneapolis MN 55401 612.330.9863 v 612.321.9424 f www.toastdesign.com ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to
Rob Marquardt
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