             *****   Introduction   *****

Over the course of the past year, we have taken DynaCADD version 1.5
through many changes, improvements and enhancements. The last update prior
to this was version 1.84. We all know that DynaCADD has long been in a
class on its own in CADD on the Atari platform and we continue to do our
best to insure that it remains on the leading edge of CADD technology. To
this end, we are proud to announce the release of DynaCADD version 2.0.

We have added many new state-of-the-art features, redefining the meaning
of excellence in CADD applications. To upgrade your existing version of
DynaCADD, please complete the enclosed order form and return it to Ditek
International. We have tested DynaCADD 2.0 and its functions quite
thoroughly. Although not impossible, it is quite difficult to test each
and every single possibility inherent within this kind of application. In
the event that you discover functions that do not perform as they should,
please advice us and we will address them immediately. We do welcome and
encourage all suggestions, presented in a positive and contructive manner.

Note: From the last major upgrade of DynaCADD, version 1.50, many
improvements and enhancements have been added to DynaCADD which post-dated
the printed manual. Be adviced that the online context sensitive HELP
documentation is completely up to date. 

We would appreciate receiving a letter from you indicating how you use
DynaCADD and your opinion about the product itself. Please indicate if you
mind if quotes from your letter are used by us in future advertising and
point of sale material. We would also appreciate receiving any drawings of
which you are inordinately proud, for the same reason. So please insure
that any that you choose to send to us are not in violation of anyone's
copyright.

We are also currently looking for DynaCADD owners with prior programming
experience that would be interested in writing applications for future
versions of DynaCADD. If so, please include information on the type of
application that you would like to write along with your qualifications
and experience in the field.



       *****   A List of ENHANCEMENTS and Changes   *****

1. The 3D math has been rewritten using consistant and improved
algorithms. As such, old 3D planar entities converted over using DEF 2.0
may be improperly rotated. We do apologize for this but felt it was
preferable to change now than at a future date, given the sudden,
unexpected rise in the use of the 3D mode. 

2. A new entity type ( 3D Face / Solid ) has been added. All appropriate
selection and transformation commands have been upgraded to work with the
new entity type. Plotting, printing and PostScript have also been
upgraded.

3. Entity Snap : End has been updated to allow snapping to 2D solid
corners and 3D face corners.

4. Once selected, an entity may be deselected by clicking the mouse
button while the entity selection cursor is positioned on the entity and
the "Shift" key is held down. 

5. Hidden line removal has been added. The command icon is found in the
EDITVIEW sub icon pad. Clicking on the HIDEFACE command will remove the
hidden lines from all selected views. A new Set Hidden Line Parameters
dialog has been added to the Set-Up menu. The options are: 

Generate Entities: Create 2D lines from the edges of the 3D faces after
                   the hidden portions of the edges have been removed.
                   The entities are created with the following attributes:

                   Layer:  Active

                   Weight: #1  

                   Style:  Continuous 

                   Color:  If inheritance is active the line is created
                           using the color of the face, otherwise the
                           active color is used. 

Display Entities:  Will display all other entities after the hidden lines
                   have been generated. 

Blended Planes:    If two or more faces share a common edge and the two
                   faces are coplanar, the edge will be removed and the
                   two faces blended into one. Note that only the hidden
                   line is changed, the defining entities remain
                   unmodified.

Hide Views 1-2-3-4:  Only selected views will have hidden lines removed.

6. DXF Import has been upgraded to include the layer color and style
information. A new color transformation dialog appears during a DXF Import
requesting the color transformation preferred. The various transformations
available are: 

Dark:  Sets color palette to AutoCAD Dark Background. 

Light: Sets color palette to AutoCAD Light Background

None:  No palette transformation. In order to set the colors properly
without distorting the colors of the DynaCADD interface, a color
translation table is employed. If no color index translation is desired,
use the "None" option on the Transformation dialog. 

7. The DXF In translator has been enhanced and improved.  These
improvements include :  

Support for 2.5D entities 

Support for 3D entities

Proper evaluation of $Flatland header variable for 2.5D  

Proper evalulation of $Fillmode header variable for Trace entities 

Elevations are supported  

3D Extrusion using 3D Faces are supported. 

All six AutoCAD text justification modes are supported. 

UCS Tables are converted to DynaCADD GCP's  

Polyline line bulge factors are now converted to DynaCADD arcs. 

Translator upgraded to AutoCAD Release 10

Insert Block repeat counts are supported

8. The DXF Out translator has also been enhanced and improved. These
improvements include :

Upgraded to compatibility with AutoCAD Release 10

More detailed DXF Header file. 

Passing of 3D UCS Table mapped from DynaCADD GCP Table.  Layer color and
style have been added to the Layer Table. 

Bspline and Bezier curve are interpolated using spline fitting. 

9. A DXF Out 3D option has been added. When DXF Out 3D has been selected,
all DynaCADD 3D entities, including the new 3D face, will be output.
Planar entities such as arcs and text have their coordinate planes
converted from DynaCADD GCP to AutoCAD UCS. 

10. DEF Export has been upgraded to version 3.00. A quick summary of
enhancements include:

Global Variables:
  Version
  ColorByLayer
  StyleByLayer
  WeightByLayer
  Mask
  Unmask
  Viewmask
3D View Tables
Color Tables
GCP Tables
Image Tables
Layer Tables have been extended to include color weight and style
information. 
Layer Tables output unnamed layers.
Bsplines and Beziers no longer add an extraneous point.

11. The cartridge port dongle has now been replaced with a joystick port
key. 

12. A new TT version of DynaCADD is now available, that takes complete
advantage of both the math coprocessor and the Motorola 68030. The memory
manager has been upgraded to detect and use additional TT FAST RAM memory,
if installed allowing DynaCADD to operate twice as fast. 

13. A color PostScript option has been added to the set PostScript
parameters dialog. When this button is selected, color information for
each entity is included in the PostScript file, otherwise a monochromatic
image is generated. 

14. A page counter has been added to the set PostScript parameters dialog.
The number of pages ( 1..99 ) is displayed in the page size area of the
dialog.

15. A new hard drive installation program has been added. The new
installation program will automatically perform an intelligent update on
all future version of DynaCADD. 

16. When trying to exit DynaCADD or cancel background output an alert has
been added requesting confirmation.

17. Inserting figures now uses the inheritance flag to determine the
color and layer information the figure will use. If inheritance is turned
on, the figure will have the same color and layer as the parent figure had
when it was created, otherwise the figure will be inserted on the
currently active layer using the current color. 

18. A new Set Layer Attributes dialog has been added to provide quicker
access to all layering information. The dialog is accessed through the
Layer menu item found under the Set-Up menu title. 

19. Color, Style and Weight By Layer toggles have been added in the layer
icon pad. When these switches are turned on, entities are drawn in the
color/style/weight associated with the entity's layer, otherwise the
entity is drawn using the color/style/weight with which it was created.
The plotting, printing and PostScript routines have also been modified to
work with the new flags.

20. A new Color Palette dialog has been added to modify the setting of
the RGB color indexes for each drawing pen. The dialog is accessed through
the Color Palette menu item found under the Set-Up menu title. 

21. The color palette is now saved when DynaCADD starts up and restored
when DynaCADD shuts down. 

22. A new Paper Color dialog has been added to set the color of the
drawing background. 

23. The screen buffer icon has been placed in the Tools menu. The menu
item "Screen Buffer" is checked when the buffer is active. 

24. A Transform : Copy icon has been placed in the top icon bar. The icon
and help message toggle with the state of the global flag. Duplicate
entities are created when Transform : Copy is active, while only one set
of entities is shown on the icon when the flag is deactivated.  The
command to toggle the Transform: Copy flag is "TRANCOPY". 

25. The maximum number of rotation copies has been increased from 360 to
3600. 

26. The maximum number of revolution copies has been
increased from 360 to 3600.

27. Coordinate tracking has been extended from 5 to 6 digits on both
sides of the decimal providing a tracking range of +/- 999999.999999. 

28. The "Trim Intof" command has been changed to "Trim Corner". The
functionality remains the same. 

29. A new command "Trim Intof" has been added. This command is
functionally identical to Trim Corner with one exception. The second entity
selected is used only to determine the intersection location and is not
trimmed or modified in any manner. 

30. The "Output Pointfile" command has been moved from under the "Create"
icon submenu to the "Output" icon submenu. 

31. The "Output Screen Dump" command has been been removed from under the
"Output" icon submenu. To output a screen dump, press the Help key while
simultaneously holding down the Alternate key. 

32. The Translate command has had an icon submenu added to it with 3
entries. Move, Copy and Copy Multiple. The Transform : Copy flag is no
longer evaluated for translations. 

33. The "TRANMOVE" command functions identical to the Translate command
with the Transform : Copy flag disabled.

34. The "TRANCOPY" command functions identical to the Translate command
with the Transform : Copy flag enabled. 

35. The "Copy Multiple" flag is similar to the "Copy" command except the
original entities selected to be copied are not deselected once the
translation is performed. The first translation location ( the "from"
location ) is retained. To deselect the current group of entities, press
the right mouse button before selecting the second translation location
( the "to" location ). 

36. The Translate Entity command now has a Translate with 3D Faces
option. When the 3D Faces options ( found under the "Translate" icon ) is
selected, all Translated entities are joined with 3D Faces.  Faces are
created only when copies are done. 

37. The Project Entity command now has a Project with 3D Faces option.
When the 3D Faces options ( found under the "Project" icon ) is selected,
all projected entities are joined with 3D Faces, otherwise projection
lines are used. 

38. The Project Entity command now honours the "inheritance" flag when
contruction projection lines / 3D faces. 

39. A selectable cursor size option has been added to the Tools menu.
When Full Crosshairs is disabled, a smaller cross is used. Entity
selection will now always use the entity selection box without adjacent
crosshairs. Window selection is unchanged regardless of the currently
selected mode. 

40. The Revolve Entity command now has a Revolve with 3D Faces option.
When the 3D Faces options ( found under the "Revolve" icon ) is selected,
all revolved entities are joined with 3D Faces. 

41. The Sweep Entity command now has a Sweep with 3D Faces option. When
the 3D Faces options ( found under the "Sweep" icon ) is selected, all
Swept entities are joined with 3D Faces. 

42. The DYNACADD.RSC file should now be placed in the CONFIG folder. The
RESOURCE folder is no longer used.


43. The PLOTTER.PLT, PRINTER.PNT and PSTSCRPT.INF have been moved from
the DRIVER folder to the CONFIG folder and renamed PLOTTER.INF, PRINTER.INF
and POSTSCRT.INF. 

44. The HATCH.FNT file has been moved from the FONTS folder to the CONFIG
folder.

45. All overlays in DynaCADD have been incorporated into the main
program. The OVERLAY folder is no longer used. 

46. A new dialog showing the last active part and drawing has replaced
the old autostart alert. In addition, an "Exit" button has been added.
This button will exit DynaCADD and return you to the Desktop. 

47. ASC file transfer has been removed.

48. The DEF 1.0 In file transfer option has been removed.

49. For users of the Calcomp PCI and 907 format drivers the following
settings must be active on the plotter's intelligent controller : 

Sync char :       1 sync char = 2
End of Message :  13
Checksum :        disabled
Flow Control :    Xon/Xoff 

Note: The Calcomp 907 format plotter must be using an intelligent
      controller or rotation of a plot will generate a plotter logic
      error.

Serial port configurations for most plot drivers are as follows : 

8 bits / character
Stop bit(s) : 1  
Parity:None  
Baud: computer and plotter must match
Flow Control : None
Exception: Users of the Calcomp 960 Extended driver must set Flow Control
           to RTS/CTS


Allow us to take this opportunity to offer our thanks to you for your
support of our product in the past and your continuing support in the
future. 

Nathan Potechin
Vice President .. Ditek International
July 3, 1991