# @(#)OPI	2.1 10/7/93
#
# Copyright (c) 1993 Alias Research Inc. All rights reserved.
# This is unpublished proprietary source code of Alias Research 
# Inc.
# The copyright notice does not evidence any actual or intended
# publication of such source code.  Alias Research Inc. cannot 
# be held responsible for any inaccuracies contained herein.
#

.H Alias Opi
.nf

To get Help, click on an item in the index.

{Using Opi}
{At Alias Separator}
\t{Opi 4-file Binary PostScript}
\t{Opi Binary PostScript}
{At the Desktop}
\t{Using ResEdit}
\t{Process Color}
\t{Page Setup}
\t{Print}
\t{Print to Disk}
{At the Opi System}

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Using Opi:

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The Alias Opi (Open Prepress Interface) utility program lets you merge separated images created with Alias Separator and separated pages created with QuarkXPress v3.1. Alias Separator generates a TIFF proxy image during the separation process. This TIFF image is used for position only in the page layout application at the desktop. During the final Opi page merge process, the TIFF file is replaced with the separated images.


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At Alias Separator:

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When you use Opi to separate an image, you generate four image separations and one TIFF image. See the Alias Separator section of the Alias Eclipse User Manual for instructions for using Alias Separator.


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Opi 4-file Binary PostScript:

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If you select Opi 4-file Binary PostScript as the output file format, the system generates four image separation files (image.copi, .mopi, .yopi, .kopi) and one TIFF image (image.tif). Use this file format to send output to a PostScript imagesetter that does not support Color PostScript format.


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Opi Binary PostScript:

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If you select Opi Binary PostScript as the output file format, the system generates one composite image separation file (image.opi) and one TIFF image (image.tif). Use this file format for output to a PostScript imagesetter that supports Color PostScript format. You then move the TIFF image to the desktop page layout system where you use it for position only on the page. The source image separations must remain in their path on the Alias system, where they await the final Opi page merge process.


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At the Desktop:

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Using ResEdit:

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You may need to use the ResEdit utility on the TIFF files once you move them to the desktop (prior to placing them in your page). Using ResEdit, you identify the files as TIFF files. To use ResEdit, follow these steps:


1. Open the ResEdit utility.


2. Follow the prompt, click on the file you want.


3. Choose Get Info from the File menu.


4. Type TIFF in the text entry box, then save the changes.


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Process Color:

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Be sure to specify all of your page elements as process color.


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Page Setup:

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When you select the Page Setup command from the File menu, select Alias as the Printer Type. Then select the Options button to set specifications for film emulsion. You must set the line screen and angles within the Page Setup dialog box. The Opi system uses whatever specifications you make in this dialog box.


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Print:

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When you select Print from the File menu, select All Plates for the Plate: option to make one separated composite Desktop Input file. Use this option if your page contains all process color elements (cyan, magenta, yellow, and black) other than images. If your page contains only black elements (and TIFFs) and you select this option, the composite Desktop Input file will contain only a black separation.


Select Plate: Cyan, Magenta, Yellow, Black to make four Desktop Input files. Use this option if your Quark page contains less than all four process color elements. When these Desktop Input files are processed in the final page merge, the four image separation files will be stripped into each of the appropriate Desktop Input files.


Also, select Opi: Include Images to leave the TIFFs in the Desktop Input file(s) until theyre swapped out for the Source Image Separations during the final page merge.


Alternatively, you can choose Omit TIFF to remove the TIFFs from the Desktop Input file as it Prints to Disk (the TIFFs retain the Opi comments). This option takes less time to Print to Disk and transport the Desktop Input file because it does not include the TIFFs.


When naming the Desktop Input files, be sure that they have the file extensions .cdin, .mdin, .ydin, and .kdin (Desktop Input) for the appropriate page separations. If the Desktop Input files dont have these file extensions, the Opi system wont acknowledge them during the final page merge process.


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Print to Disk:

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Once the Quark page is completed, Print the page to Disk. Printing to Disk is the process of creating the Desktop Input file(s) used later in the Opi process. After you have successfully Printed the page to Disk, transport the Desktop Input file(s) with the correct file extension(s) to the Alias system.


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At the Opi System:

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Once the Desktop Input files are on the Alias hard disk, you can run the Opi system. To run Opi, follow these steps:


1. Open a shell window, change to the /usr/Alias/bin directory, type Opi and press Enter. You can also open the WorkSpace and double-click on the Opi icon in the /usr/Alias/bin directory.


The Opi application dialog box appears.


2. Select a .din file name from the Source Image Seps Path scroll box to select the input file to use. Select the Go Up button to move up one directory level from the path displayed in the Path box. To return to the original path, select the Original button.


3. Select the File menu, then select Open to select the Desktop Input file(s) to be merged with the Source Image Separations.


Opi displays another dialog box you use to select a desktop file.


4. Select a file name from the Desktop Input Path scroll box to select the input file to use. Select the Go Up button to move up one directory level from the path displayed in the Path box. To return to the original path, select the Original button.


5. Click the Okay button.


Opi clears the Desktop Input dialog box.


6. Select the Process button in the Opi dialog box after you've specified the Source Image Seps Path and opened the desktop Input file(s). This is the last step of the Opi process. It executes the final page merge.


The final merged page is now a single PostScript file if the Desktop Input was a composite file. It is four PostScript files (one for each process color) if the Desktop Input was four files. The PostScript file(s) can now be plotted with a PostScript imagesetter.


7. Select the File menu, then select Quit to exit the Opi application.
