Need to make a reference grid for a letter size page

R
Posted By
Ramon
Jul 2, 2008
Views
565
Replies
7
Status
Closed
I am trying to generate a TIFF file with the following parameters:

– sampled at 600dpi
– letter size (8 1/2 x 11", or 5100 x 6600 pixels)
– grid lines every 1000 units

The procedure I am using is this:

– Run the PostScript file below through Distiller, converting it into PDF
– Export the grid as a TIFF file from Acrobat.

The problem is that the resulting TIFF file has a dimension of 1700×2200, and the resolution is 200dpi.

I can change the resolution with IrfanView, but not the dimensions, because the resampling will mess things up.

I guess I need to change the default (72dpi) resolution of PostScript to 600dpi? How?

Any other suggested approach?

TIA,

-RFH

———-
newpath
% 5 Vertical Lines
120 0 moveto
0 792 rlineto
240 0 moveto
0 792 rlineto
360 0 moveto
0 792 rlineto
480 0 moveto
0 792 rlineto
600 0 moveto
0 792 rlineto
% 6 Horizontal Lines
0 672 moveto
612 0 rlineto
0 552 moveto
612 0 rlineto
0 432 moveto
612 0 rlineto
0 312 moveto
612 0 rlineto
0 192 moveto
612 0 rlineto
0 72 moveto
612 0 rlineto
% end of grid
1 setlinewidth
stroke
showpage
Related Tags
grid letter make page reference size

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DS
Don Schmidt
Jul 2, 2008
Maybe GraphPaper.exe ver 4.03 could help.

http://pharm.kuleuven.be/pharbio/gpaper.htm

—
Don
Vancouver, USA

"Ramon F Herrera" wrote in message
I am trying to generate a TIFF file with the following parameters:
– sampled at 600dpi
– letter size (8 1/2 x 11", or 5100 x 6600 pixels)
– grid lines every 1000 units

The procedure I am using is this:

– Run the PostScript file below through Distiller, converting it into PDF
– Export the grid as a TIFF file from Acrobat.

The problem is that the resulting TIFF file has a dimension of 1700×2200, and the resolution is 200dpi.

I can change the resolution with IrfanView, but not the dimensions, because the resampling will mess things up.

I guess I need to change the default (72dpi) resolution of PostScript to 600dpi? How?

Any other suggested approach?

TIA,

-RFH

———-
newpath
% 5 Vertical Lines
120 0 moveto
0 792 rlineto
240 0 moveto
0 792 rlineto
360 0 moveto
0 792 rlineto
480 0 moveto
0 792 rlineto
600 0 moveto
0 792 rlineto
% 6 Horizontal Lines
0 672 moveto
612 0 rlineto
0 552 moveto
612 0 rlineto
0 432 moveto
612 0 rlineto
0 312 moveto
612 0 rlineto
0 192 moveto
612 0 rlineto
0 72 moveto
612 0 rlineto
% end of grid
1 setlinewidth
stroke
showpage
BA
Bernd Alheit
Jul 2, 2008
At export as a TIFF file set the resolution to 600dpi.

Ramon F Herrera wrote:
I am trying to generate a TIFF file with the following parameters:
– sampled at 600dpi
– letter size (8 1/2 x 11", or 5100 x 6600 pixels)
– grid lines every 1000 units

The procedure I am using is this:

– Run the PostScript file below through Distiller, converting it into PDF
– Export the grid as a TIFF file from Acrobat.

The problem is that the resulting TIFF file has a dimension of 1700×2200, and the resolution is 200dpi.

I can change the resolution with IrfanView, but not the dimensions, because the resampling will mess things up.

I guess I need to change the default (72dpi) resolution of PostScript to 600dpi? How?

Any other suggested approach?

TIA,

-RFH

———-
newpath
% 5 Vertical Lines
120 0 moveto
0 792 rlineto
240 0 moveto
0 792 rlineto
360 0 moveto
0 792 rlineto
480 0 moveto
0 792 rlineto
600 0 moveto
0 792 rlineto
% 6 Horizontal Lines
0 672 moveto
612 0 rlineto
0 552 moveto
612 0 rlineto
0 432 moveto
612 0 rlineto
0 312 moveto
612 0 rlineto
0 192 moveto
612 0 rlineto
0 72 moveto
612 0 rlineto
% end of grid
1 setlinewidth
stroke
showpage
AM
Andrew Morton
Jul 2, 2008
You can use the filter factory plug-in (on the Photoshop CD in the Goodies folder) which appears under Filter->Synthetic with the following:

in the red channel:-
(x%2 && y%2)?r:0
green channel:-
(x%2 && y%2)?g:0
blue channel:-
(x%2 && y%2)?b:0

Change each occurrence of 2 to whatever you want the grid spacing to be.

You can get a grid of dots by changing the && to || and an inverse grid by changing the r:0 to 0:r and so on.
The instructions for filter factory are on the CD too.

Andrew
MV
Matti Vuori
Jul 2, 2008
"Andrew Morton" wrote in
news::

You can use the filter factory plug-in (on the Photoshop CD in the Goodies folder) which appears under Filter->Synthetic with the following:

He mentioned that he uses IrfanView, so what makes you think that he has Photoshop?

—
Matti Vuori, <http://www.kotiposti.net/~xmvuori/index-e.htm>
AM
Andrew Morton
Jul 2, 2008
Matti Vuori wrote:
He mentioned that he uses IrfanView, so what makes you think that he has Photoshop?

His cross-posting into the comp.graphics.apps.photoshop newsgroup.

Andrew
R
Ramon
Jul 2, 2008
On Jul 2, 9:13 am, Matti Vuori wrote:
"Andrew Morton" wrote innews::

You can use the filter factory plug-in (on the Photoshop CD in the Goodies folder) which appears under Filter->Synthetic with the following:

He mentioned that he uses IrfanView, so what makes you think that he has Photoshop?

I have both, and lately I have been also using SnagIt as an editor.

The OP
O
OM
Jul 3, 2008
On Wed, 02 Jul 2008 13:13:36 GMT, Matti Vuori
wrote:

He mentioned that he uses IrfanView, so what makes you think that he has Photoshop?

….The fact that he posted to a photoshop group?

[shakes head in utter dismay]

OM
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] OMBlog – http://www.io.com/~o_m/omworld [
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