        #
        | README file for
        |
        | ELSA WINNER POWERdraft Accelerator for MicroStation PC 5.x
        | and MicroStation PC 95 for Windows NT and Windows 95,
        |
        | Ver. 01.00.02 for
        |
        |       GLORIA-4/8
        |
        | Copyright (c) 1994-97 ELSA GmbH, Aachen (Germany)
        |
        | ELSA GmbH                  Internet   : http://www.elsa.de
        | Sonnenweg 11               LocalWeb   : +49-(0)241-938800
        | D-52070 Aachen             CompuServe : GO ELSA
        |
        | ELSA Inc.                  Internet   : http://www.elsa.com
        | 2231 Calle De Luna         CompuServe : GO ELSA
        | Santa Clara, CA 95054
        | USA
        |
        | ELSA Asia Inc.             Internet   : http://www.elsa.com
        | 7F-11, No. 188, Sec. 5     CompuServe : GO ELSA
        | Nanking East Road
        | Taipeo 105
        | Taiwan, R. O. C.
        |
        | 08/08/97, sd

        Table of Contents

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


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1.      Overview

        This directory contains the ELSA POWERdraft Accelerator for
        MicroStation PC 5.x  and MicroStation PC 95 for Windows NT and
	Windows 95. 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.

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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
	The other files belong to the setup utility.

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3.      Installation

        Requirement for the installation of the ELSA POWERdraft Accelerator
        is a system with Windows NT or Windows 95.
        Install MicroStation PC on your hard disk as described in the
        MicroStation 'Installation and Configuration Guide'.
        Start SETUP to install the ELSA POWERdraft Accelerator.

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4.      Notes

4.1     Accelerator options

        You can configure the ELSA POWERdraft accelerator by using the
        ELSA dialog in the MicroStation main menu.

        The following options are available:

            RegenExtents
              With a regen more than the visual screen can be inserted
              into the display list. Then the data for panning or zoom out
              are ready. The value determines the range as multiples of
              the visible screen. With a value of 0, the whole image will
              be inserted (default).

            ZoomDepth
              As explained under the command REGEN, the display
              accuracy of a display list depends on the zooming level of
              a view. With this option you can specify the range you're
              typically working in. When you zoom in/out beyond the
              zooming range an automatic REGEN for this view is
              performed. When you set this parameter to 0 (zero), no
              automatic regen will occur (default).

            StrokeTolerance
              The drawing is optimally vectorized into a display list. That
              means that no point is more than half a pixel away from it's
              true position. With this option you can modify this
              optimality criterion. The smaller you set the value of Stroke
              Tolerance, the more precise the drawing will be vectorized.
              If you are setting for example "0.1", no point will be more
              than 0.1 pixel away from it's true position. That means you
              can see curved elements longer as curved instead of
              polygonal while you are zooming in. Values above 0.5
              mean that curved elements are visually more like
              polygonals, getting faster REGEN and UPDATE
              operations.

            Enhanced Multi Level Mode
              Usually there is one display list per level and view. This
              requires an amount of memory and bookkeeping overhead.
              When you don't work level oriented or seldom switch
              between levels, you can speed up REGEN and REDRAW
              operations by up to 10%. But switching of levels results in
              automatic REGENs.
              If you turn on this option, the drawing order of the elements
              might be changed. This can cause a different appearance
              of the drawing. If the this behavier is unwanted, you should
              turn off this option.


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5.      Known Problems

        Elements with the property "Hole" might be handled the wrong way.
        You can see it especially if you use filled elements.

        The option "Fast Cells" in the "View Attributes" dialog should be
        deactivated.

	In MicroStation 95 the option "Use Backing Store" in the
	"Workspace/Preferences/ViewWindos" dialog should be deactivated.


