Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

Thanks!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food

On Fri, 27 Mar 2009 11:44:48 -0800, "Paul Hovnanian P.E."
wrote:

Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

It depends on how the graphical data and text have been encoded into the
file.

I suspect that its all a big bitmap, where each pixel (set to other than
the background color) is explicitly defined by a coordinate and RGB
value. In this case, good luck separating the text from the graph. Open
one up with a text editor and see if the text is stored as separate text
strings. If the text is easily identifiable, it may be possible to hand
edit the color attributes of the graphical elements and then set the
text bits back to black.

If its all bits, your best bet might be to convert the Postscript files
into a format easily manipulated, clip out the graph data from each,
change its color and paste them all on top of one image with the axis,
labels and other text intact. This would be particularly handy if you
want to automate the process and the source graphs are all of the same
size.

For such tools, take a look at http://www.imagemagick.org/

(some more of that Commie freeware ;-)).

Good idea, Paul! I do have several software-based 'printers' that can
output GIF, etc.

Maybe manipulate in GIF, then 'print to' PS or PDF and then merge.

In this biz, it's 'all in the showmanship' ;-)

The circuit design is (usually) easy, the presentation convincing the
client that it really works is difficult.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food

Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

It depends on how the graphical data and text have been encoded into the
file.

I suspect that its all a big bitmap, where each pixel (set to other than
the background color) is explicitly defined by a coordinate and RGB
value. In this case, good luck separating the text from the graph. Open
one up with a text editor and see if the text is stored as separate text
strings. If the text is easily identifiable, it may be possible to hand
edit the color attributes of the graphical elements and then set the
text bits back to black.

If its all bits, your best bet might be to convert the Postscript files
into a format easily manipulated, clip out the graph data from each,
change its color and paste them all on top of one image with the axis,
labels and other text intact. This would be particularly handy if you
want to automate the process and the source graphs are all of the same
size.

For such tools, take a look at http://www.imagemagick.org/

(some more of that Commie freeware ;-)).

--
Paul Hovnanian
------------------------------------------------------------------
Nondeterminism means never having to say you are wrong.

Jim Thompson writes:
I'd like to color each temperature run differently.

If the traces are colored at all, look through the postscript
file for "setrgbcolor". It's likely in a macro definition:

/foo { ... setrgbcolor ... } def

in which case you'd look for "foo" instead. Otherwise somewhere
you'll see something like:

0.5 0.67 1.0 setrgbcolor

that's what you change. You might have setcmykcolor instead, which
takes four operands.

If the graph lines are black, look for "setgray" instead.

Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

Some years back I came across a postscript file that even the Mac boys at
the office couldn't load or print.

Eventually I found a PS to PDF program whose name eludes me now but is
well known ( someone here will know it ) . I'd suggest converting to PDF
and editing in that.

Graham

Eeyore wrote:

Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

Some years back I came across a postscript file that even the Mac boys at
the office couldn't load or print.

Eventually I found a PS to PDF program whose name eludes me now but is
well known ( someone here will know it ) . I'd suggest converting to PDF
and editing in that.

Graham

Well, there's a ps2pdf command in the ghostscript package (also a
freeware product).

But the Imagemagik utilities have numerous Postscript to whatever
converters. The 'base' format is PNM (a family of formats, actually).
These are optimized for easy modification by a set of command line
utilities.

I'm not sure if Jim needs a one time solution or something that's
scriptable. The command line stuff might be a bit trickier than a good
GUI editor, but if the process has to be repeated, these might be the
way to go.

--
Paul Hovnanian
------------------------------------------------------------------
APL is a write-only language. I can write programs in APL, but I
can't read any of them.
-- Roy Keir

On 2009-03-27, Jim Thompson wrote:
Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

Use something else to plot the output (gnuplot? excell?)

I suspect the graphs are vector images in which case you could a
vector graphics editor: eg: inkscape, corel draw,

On Fri, 27 Mar 2009 11:44:48 -0800, "Paul Hovnanian P.E."
wrote:

Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

It depends on how the graphical data and text have been encoded into the
file.

I suspect that its all a big bitmap, where each pixel (set to other than
the background color) is explicitly defined by a coordinate and RGB
value. In this case, good luck separating the text from the graph. Open
one up with a text editor and see if the text is stored as separate text
strings. If the text is easily identifiable, it may be possible to hand
edit the color attributes of the graphical elements and then set the
text bits back to black.

If its all bits, your best bet might be to convert the Postscript files
into a format easily manipulated, clip out the graph data from each,
change its color and paste them all on top of one image with the axis,
labels and other text intact. This would be particularly handy if you
want to automate the process and the source graphs are all of the same
size.

For such tools, take a look at http://www.imagemagick.org/

(some more of that Commie freeware ;-)).

My client in Australia advises that Corel Draw can edit PDF files and
change colors.

Does anyone have a comparison between the full Corel X4 package and
the "Home" edition... besides the 4:1 price difference ?:-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food

On Sat, 28 Mar 2009 07:48:06 -0700, Jim Thompson
wrote:

On Fri, 27 Mar 2009 11:44:48 -0800, "Paul Hovnanian P.E."
wrote:

Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

It depends on how the graphical data and text have been encoded into the
file.

I suspect that its all a big bitmap, where each pixel (set to other than
the background color) is explicitly defined by a coordinate and RGB
value. In this case, good luck separating the text from the graph. Open
one up with a text editor and see if the text is stored as separate text
strings. If the text is easily identifiable, it may be possible to hand
edit the color attributes of the graphical elements and then set the
text bits back to black.

If its all bits, your best bet might be to convert the Postscript files
into a format easily manipulated, clip out the graph data from each,
change its color and paste them all on top of one image with the axis,
labels and other text intact. This would be particularly handy if you
want to automate the process and the source graphs are all of the same
size.

For such tools, take a look at http://www.imagemagick.org/

(some more of that Commie freeware ;-)).

My client in Australia advises that Corel Draw can edit PDF files and
change colors.

Does anyone have a comparison between the full Corel X4 package and
the "Home" edition... besides the 4:1 price difference ?:-)

...Jim Thompson

Crapola\ :-( Just like me to overlook the obvious. In PSpice Probe,
right-click a trace symbol, and change its color _before_ "printing"
to Postscript and merging

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food

"Paul Hovnanian P.E." wrote:

Eeyore wrote:
Jim Thompson wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

Some years back I came across a postscript file that even the Mac boys at
the office couldn't load or print.

Eventually I found a PS to PDF program whose name eludes me now but is
well known ( someone here will know it ) . I'd suggest converting to PDF
and editing in that.

Graham

Well, there's a ps2pdf command in the ghostscript package (also a
freeware product).

That's the one I had in mind.


But the Imagemagik utilities have numerous Postscript to whatever
converters. The 'base' format is PNM (a family of formats, actually).
These are optimized for easy modification by a set of command line
utilities.

I'm not sure if Jim needs a one time solution or something that's
scriptable. The command line stuff might be a bit trickier than a good
GUI editor, but if the process has to be repeated, these might be the
way to go.

--
Paul Hovnanian
------------------------------------------------------------------
APL is a write-only language. I can write programs in APL, but I
can't read any of them.
-- Roy Keir

On Fri, 27 Mar 2009 17:13:19 UTC, Jim Thompson
wrote:

Is there any process whereby I can change the color of the graphic
elements of a Postscript file, without changing the color of the text
(black)?

Object: PSpice can't show more than one Performance Analysis at a
time (only one variable), so I resort to superimposing Postscript
files of Performance Analyses (at different temperatures for example).

I'd like to color each temperature run differently.

Any way to do that?

Thanks!

...Jim Thompson

The various Postscript manuals are freely available although they may
not provide a quick answer. IIRC there are 'red' 'blue' and 'green'
books. One is the Postscript reference manual and one is a tutorial.
Alternatively you could ask in:

comp.lang.postscript



--
Jim Backus running OS/2 Warp 3 & 4, Mac OS X and Win98SE
bona fide replies to j dot backus the circle thingy jita dot
demon dot co dot uk