Corel Draw 8 EPS file export
Brian L Johnson
> If I place this eps over dark background, you can see the white space inside
> the object, where there should have been gradient.
>
Make sure that you're in 'Enhanced' view. 'Normal' sometimes has oddities
with bitmaps really close together.
--blj--
C_Tech Volunteer
Jason Glynn
Brian L Johnson wrote in message ...
I am seeing this problem in Pagemaker 6.5 not in Corel Draw, all I am doing
in Draw is creating the gradient and exporting it. I am sure it is a bad eps
due to it printing wrong, displaying wrong and When I load the EPS in
Photoshop, it shows the sides as white as well.
On the enhanced view, I find that the normal view tends to view things much
better, with enhanced view, things don't display at all very good when you
zoom in close.
>
>--blj--
>C_Tech Volunteer
Brian L Johnson
> I am seeing this problem in Pagemaker 6.5 not in Corel Draw, all I am doing
> in Draw is creating the gradient and exporting it.
>
Isn't PM is simply showing you the bitmap header of the EPS file?
> I am sure it is a bad eps due to it printing wrong, displaying wrong and
> When I load the EPS in Photoshop, it shows the sides as white as well.
>
It's printing the same as it's showing on-screen? What printer are you
using?
> On the enhanced view, I find that the normal view tends to view things much
> better, with enhanced view, things don't display at all very good when you
> zoom in close.
>
Problems with Enhanced view are very likely to be video driver related. If
they're seriously giving you problems, you might try either newer or,
strange as it may seem, older drivers to see if it fixes it.
Your Normal display is likely to be at 96dpi which is _much_ lower than
the resolution of your printer. The Enhanced view anti-aliases what's
shown in Normal view and it simulates a much higher resolution.
--blj--
C_Tech Volunteer
Jason Glynn
Brian L Johnson wrote in message ...
>
>> I am seeing this problem in Pagemaker 6.5 not in Corel Draw, all I am
doing
>> in Draw is creating the gradient and exporting it.
>>
>Isn't PM is simply showing you the bitmap header of the EPS file?
Yes, PM is showing the bitmap/wmf header, they both show the same wether WMF
or bitmaps is used BUT the problem is with the postscript created by Draw,
because I have tried printing it from Word, rendering it in Photoshop and
Distilling it into a pdf with acrobat. I am 100% sure that these 3 programs
are not just working with the "preview".
>> I am sure it is a bad eps due to it printing wrong, displaying wrong and
>> When I load the EPS in Photoshop, it shows the sides as white as well.
>>
>It's printing the same as it's showing on-screen? What printer are you
>using?
>
>> On the enhanced view, I find that the normal view tends to view things
much
>> better, with enhanced view, things don't display at all very good when
you
>> zoom in close.
>>
>Problems with Enhanced view are very likely to be video driver related. If
>they're seriously giving you problems, you might try either newer or,
>strange as it may seem, older drivers to see if it fixes it.
>
>Your Normal display is likely to be at 96dpi which is _much_ lower than
>the resolution of your printer. The Enhanced view anti-aliases what's
>shown in Normal view and it simulates a much higher resolution.
>
>--blj--
>C_Tech Volunteer
I do know the screen res is 96dpi and is _much_lower than the screen, and I
do know about resolutions for different output devices and what different
gamuts each device handles , _but_ what has this got to do with my problem?
Yes, I have tried the standard ATI driver in Win95, the driver from ATI's
site, changed video colour depth from 256 to 16bit to 24bit to 32bit and
even tried changing video cards, I just find that enhanced view has too many
bugs for it to be any good with zoomed in Views.
Try creating a box about 1 inch wide by 10 inches high and fill it with the
standard black-white gradient from top to bottom with say 100 steps, then
export into another program and check the results. The EPS file dimensions
never seem to match Gradient dimensions, so you either get white or
transparent gaps on the side which is quite annoying when you are trying to
do some precision layout.
As a test, get the Gradient EPS, import into PM, then add a keyline around
the object. When it prints the Keyline is the right size, but the contents
(ie the gradient) which should be the same size as the keyline, is
substantially different.
Surely I am not the only one on earth suffering this problem of Draw not
exporting the right size EPS'S.
Jerry Sanderson [C_Tech]
>The EPS file dimensions
>never seem to match Gradient dimensions, so you either get white or
>transparent gaps on the side which is quite annoying when you are trying to
>do some precision layout.
In the first place, the EPS bounding box is always defined about a
point outside of any objects, to make sure none of them get clipped.
So the X/Y dimensions of the placed file will be about 2 points larger
than the actual contents. However, that has nothing to do with your
problem; I'm just being a know-it-all. <g>
What you're seeing isn't limited to fountain fills, though it's more
noticeable there. It occurs with any type of fill--an artifact of the
rasterization process when creating the thumbnail bitmap. That's done,
by the way, by your video driver, so I'm not sure Corel can do
anything about it without a LOT of coding.
All of which begs the question of why you're attempting to do such
precision alignment in an app like PageMaker. It's designed to lay out
the _page_; graphics should be created in an illustration program and
plopped whole into that larger creation.
Jerry
C_Tech Volunteer
Jason Glynn
Jerry Sanderson [C_Tech] wrote in message
<35f2b80a...@cnews.corel.ca>...
>Jason -
>
>>The EPS file dimensions
>>never seem to match Gradient dimensions, so you either get white or
>>transparent gaps on the side which is quite annoying when you are trying
to
>>do some precision layout.
>
>In the first place, the EPS bounding box is always defined about a
>point outside of any objects, to make sure none of them get clipped.
>So the X/Y dimensions of the placed file will be about 2 points larger
>than the actual contents. However, that has nothing to do with your
>problem; I'm just being a know-it-all. <g>
But should there be any gap between the EPS graphic and bounding box?, When
I enlarge the EPS file in PM about 400%, there now might be 3-5mm
difference. I have created a gradient in Illustrator and never had this
problem?
>
>What you're seeing isn't limited to fountain fills, though it's more
>noticeable there. It occurs with any type of fill--an artifact of the
>rasterization process when creating the thumbnail bitmap. That's done,
>by the way, by your video driver, so I'm not sure Corel can do
>anything about it without a LOT of coding.
I am not just going by the preview but the actual EPS Graphic Size. EG If I
do a eps file that is 100mm long, then do a Line in PM 100mm long, the EPS
graphic will be a bit short, where the PM line is the correct length.
>All of which begs the question of why you're attempting to do such
>precision alignment in an app like PageMaker. It's designed to lay out
>the _page_; graphics should be created in an illustration program and
>plopped whole into that larger creation.
>>Jerry
>C_Tech Volunteer
I create an EPS graphic in CD8, and sometimes I need to have a box
surrounding it, so in Pagemaker I will add a keyline to it by noting the eps
dimensions and creating a box with no fill in PM the same size. or I create
a horizontal gradient going across the page the finishes at the end of a
column where the text finishes, but the gradient never seems to go the
complete distance of the EPS graphic dimensions, so I have a messy layout
with nothing ever lining up, I have to then stretch the EPS, print it and
print again and again until it lines up correctly.
All I need is if the EPS dimensions are exported as 100mm long, that the
gradient of whatever inside goes the 100mm, not say 95mm.
Try for yourself.
Thanks,
Jason
Jerry Sanderson [C_Tech]
>But should there be any gap between the EPS graphic and bounding box?, When
>I enlarge the EPS file in PM about 400%, there now might be 3-5mm
>difference. I have created a gradient in Illustrator and never had this
>problem?
At least in the way Corel implements it, there will be. I've never
used Illustrator, so can't comment on that. I think one of the reasons
for the gap is that traditionally, bounding boxes are defined in whole
points. If the "proper" size happens to be 37.00000005 points, it
would be rounded to 38 so as not to clip anything off.
However, with Draws 7 & 8, Corel introduced the option to use floating
point bounding boxes (as allowed by the EPS spec), available in the
filter's dialog box. By using that, the BB can be defined considerably
closer--but never absolutely precisely on. Our machines just don't
have enough decimals.
It makes sense that enlarging the EPS will also enlarge that gap; all
of the vectors are acted upon equally.
>I am not just going by the preview but the actual EPS Graphic Size. EG If I
>do a eps file that is 100mm long, then do a Line in PM 100mm long, the EPS
>graphic will be a bit short, where the PM line is the correct length.
If I understand you correctly, that makes sense. If the bounding box
is 100mm, the line(s) contained within it will be slightly smaller.
The line drawn directly in PM has no such constraints.
>I create an EPS graphic in CD8, and sometimes I need to have a box
>surrounding it, so in Pagemaker I will add a keyline to it by noting the eps
>dimensions and creating a box with no fill in PM the same size.
The box is really part of the graphic, and should be created along
with it. But, and this applies to gradients as well, it's not really
difficult to allow for the difference. A 1" square exported as EPS
from Draw will come into PM at 1.014" square (I'll let you do the mm
conversion). Simply subtract .014" from the apparent size of the EPS,
create your box, and center it over the EPS.
No, it's not a perfect answer, especially if you do any radical
resizing of the EPS, but that's just the way it is when working
between these two applications. If you were using Ventura, you could
read the CDR files directly, without having to deal with such
workarounds.
The best option of all is simply to change your design techniques a
bit so that such precision isn't necessary. If a graphic needs a box,
draw it when creating the graphic. If a gradient must end butted
against a liine, create the line in the same application used to
create the gradient.
In a perfect world, we'd have perfect exchangeability between
different applications, but that seldom happens even among those from
the same manufacturer. EPS is a good standard, but even it (and its
implementation by different manufacturers) has its foibles.
Jerry
C_Tech Volunteer