        #
        | README file for
        |
        | ELSA WINNER 1000/2000 POWERdraft driver for MicroStation
        |
        | Ver. 5.23
        |
        |       WINNER 1000PRO/X
        |       WINNER 2000PRO
        |       WINNER 2000PRO/X
        |       GLoria
        |
        | Copyright (c) 1994-96 ELSA GmbH, Aachen (Germany)
	|
        |                                     Subsidary:
        | ELSA GmbH                           ELSA Inc.
        | Sonnenweg 11                        2150 Trade Zone Blvd.
        | D-52070 Aachen                      Suite 101
        | Germany                             San Jose, CA 95131
        |                                     USA
        |
        | Phone      : +49-241-606-0         Phone: +1-408-935-0350
        | Support Fax: +49-241-606-6399      Phone:  1-800-272-ELSA
        | BBS (modem): +49-241-606-9800      Fax  : +1-408-935-0370
        | BBS (ISDN) : +49-241-606-9820      BBS  : +1-408-935-0380
        | CompuServe : GO ELSA               CIS  : GO ELSA
        | WWW        : http://www.elsa.de    WWW  : http://www.elsa.com
        |
        | March 6th 1996, au


        Table of Contents

        1.      Overview
        2.      Contents
        3.      Installation
        4.      Notes
        5.      Known Problems


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1.      Overview

        This directory contains the WINNER 1000/2000 POWERdraft driver
        for MicroStation PC 5.x. See section 2 for a list of files and
        their purpose. Information in this file may not appear in the
        manuals. Please read this file carefully to be aware of any
        changes to the documentation. Information in files on disk
        supersedes the printed documentation.


------------------------------------------------------------------------

2.      Directory Contents

        The directory contains the following files:

        README.TXT      the file you currently look at
        LIESMICH.TXT    German version of this READM file
        USTNWINP.DLM    Dynamically loaded module
        USTNWINP.MA     MicroStation Resource file for ELSA driver
        USTNWINP.MGL    MicroStation Identification file for ELSA driver


------------------------------------------------------------------------

3.      Installation

        Install MicroStation PC on your hard disk as described in the
        MicroStation 'Installation and Configuration Guide'.

        DO NOT run USCONFIG at the end of the installation. You have
        to copy the WINNER 1000/2000 POWERdraft driver on your disk
        first.

        Install the WINNER 1000/2000 as described in the system manual.

        Start the program WINSETUP and perform all topics in the menu
        INSTALLATION. Then select MICROSTATION PC in the GUI/CAD DRIVER
        menu and fill in the dialog.


3.1     Single Screen Configuration

        Start the configuration program USCONFIG in the MicroStation PC
        directory. Select the DISPLAY ADAPTERS menu. The WINNER
        1000/2000 POWERdraft driver can be selected under ELSA WINNER
        1000/2000 POWER DRAFT. You can select it for the right screen.
        You can enable the virtual graphics page. If your WINNER has
        enough memory you can switch between two pages inside
        MicroStation.


3.2     Double Screen Configuration

        To use two screens your graphic boards and display drivers have
        to be compatible to each other.

        The following combinations of two WINNER 1000/2000 are
        supported:

                right screen            + left screen
                ---------------------------------------------
                WINNER 2000PRO-PCI-2   + WINNER 2000PRO-PCI-2
                WINNER 2000PRO-PCI-4   + WINNER 2000PRO-PCI-4
                WINNER 2000PRO-VL-2    + WINNER 2000PRO-VL-2
                WINNER 2000PRO-VL-4    + WINNER 2000PRO-VL-4
                WINNER 2000PRO/X-PCI-2 + WINNER 2000PRO/X-PCI-2
                WINNER 2000PRO/X-PCI-4 + WINNER 2000PRO/X-PCI-4
                WINNER 2000PRO/X-PCI-8 + WINNER 2000PRO/X-PCI-8

        In every case you have to use the ELSA WINNER 1000/2000
        POWERdraft driver for MicroStation.


------------------------------------------------------------------------

4.      Notes

4.1     Driver options

        You can configure the WINNER 1000/2000 POWERdraft driver by
        setting the environment variables ELSA_USTN_RIGHT for the right
        screen and ELSA_USTN_LEFT for the left screen

        The following options are available:

        -vm       dd    desired video mode.
        -xres   dddd    desired horizontal resolution.
        -yres   dddd    desired vertical resoulution.
        -bpp      dd    desired color depth (bits per pixel).
        -hz       dd    desired screen refresh rate (in Hertz).
        -did            the information dialog about the driver and the
                        graphics card is not inserted into the help
                        menu.

        ELSA_USTN_RIGHT and ELSA_USTN_LEFT are constructed by the
        WINSETUP program when you install the drivers and inserted in
        your AUTOEXEC.BAT.

        Moreover there are some special options for the POWERdraft
        driver for MicroStation PC:

        -re     n       RegenExtents
                This option specifies the range of a view, a DisplayList
                contains after a REGEN. The value is given by a multiple
                of the view size. As soon as you leave this range a
                REGEN is started.
                When for example -RE 3 is specified, the DisplayList
                contains all drawing elements that would be visible in a
                view with three times the actual size.
                When -RE 0 is specified, always the whole drawing is
                written to the DisplayList.
                The default for RE is 0.

        -sdpv           SingleDisplaylistPerView
                This option specifies whether only one DisplayList per
                view is used. In this cases REGEN- and UPDATE-operations
                are performing about 10% faster. But toggeling of levels
                result in a REGEN.
                When this option is not used, there is one DisplayList
                per view per level.

        -st     %f      StrokeTolerance
                This option specifies the accuracy a drawing is written
                to the DisplayList. The value gives the maximal
                deviation of a point from it's mathematical exact
                position in multiples of a pixel.
                Only positive values are allowed.
                When for example -ST 0.1 is specified, no point is more
                0.1 pixel from it's exact position. That means the
                drawing is stroked very detailed into the DisplayList.
                Therefore REGEN- and UPDATE-operations will last longer
                and the DisplayList needs more space.
                When -ST 2.0 is specified, the DisplayList will be much
                coarser. But REGEN- and UPDATE-operations will be faster
                and the DisplayList needs less space.
                The default for ST is 0.5.

        -zd     n       ZoomDepth
                This option specifies the zooming range, that can be
                used without forcing a REGEN.
                When for example -ZD 4 is specified, you can zoom in and
                out by a factor of up to 4. When leaving this range a
                REGEN is forced.
                When -ZD 0 is specified, no automatic REGEN will occur
                because of zooming in our out.
                The default for ZD is 0.

4.2.    Driver commands

        REGEN   The special thing of the POWERdraft driver for
                MicroStation PC is the use of display lists. When you're
                opening a view, the drawing entities are written into a
                display list, that speeds following drawing operation
                immense. The display lists holds the drawing information
                in a special vectorized form. The accuracy of this
                vectorizing is optimal for the actual view resolution.
                When you zoom in/out the vectorized data of the display
                list remain unchanged, that is they are no more optimal
                for this resolution. When you want to have the optimal
                vectorized display list again after some zooming
                operations you can use the REGEN command.
                Examples:
                        REGEN           Select a view to regenerate its
                                        display list.
                        REGEN view      Regenerate the display list of
                                        view <view>.
                        REGEN RIGHT     Regenerate all display lists on
                                        the right screen.
                        REGEN LEFT      Regenerate all display lists on
                                        the left screen.
                        REGEN ALL       Regenerate all display lists.
                After a REGEN the default command is invoked.


4.3.    Limitations

        - The display list supports two dimensional drawings only. Three
          dimensional drawings don't use the display list.

        - commands VIEW PREVIOUS/NEXT
                After performing a REGEN there is a fitted view
                available via VIEW NEXT. This reduces the buffer for
                these commands from 8 to 7.


4.4.    Temporary Files

        The POWERdraft driver for MicroStation creates a temporary file.
        To do this the environment variables TMP and TEMP are inspected.
        If none of these environment variables are set the temporary
        file is writen to the actual directory.


------------------------------------------------------------------------

5.      Known Problems

        See also the possible restrictions under 3.2.

5.1.    Fonts

        The commands SET FONT SLOW and SET FONT FAST don't have any
        meaning to the POWERdraft driver for MicroStation. It always
        uses the slow font.

5.2.    Reference file attaching/detaching

        When attaching/detaching a reference file the display lists are
        not automaticely updated. Please use the command REGEN ALL to
        update the display lists manually.
