CAD News - Large and Small )
 Volume I, Issue 25 November 21, 2003 
in this issue
  • Is Autodesk at War with its Customers?
  • Open Design Alliance Posts Survey
  • Convert your old LAY files
  • Pocket PC "Must-Have Daily-Use App Shootout!"
  • Corrections and Apologies
  • Free Lisp Routine for Softdesk/LDD
  • 12th ANNUAL INTERNATIONAL CONFERENCE ON ISO 9000
  • Using Notepad to Determine Drawing Version

  • Greetings!

    Is Autodesk at War with its Customers?

    Autodesk customers are becoming increasingly disenchanted with Autodesk behavior. The latest torpedo launched by Autodesk is against users of it's AutoCAD LT product.

    Autodesk is actively prosecuting third-party developers who create add-ons for LT. At a recent ADN conference, developers were told that creating an add- on for LT would be considered a violation of their contract with Autodesk and could result in them being booted as a developer.

    LT is not supposed to be customizable, but a few noble developers have created products to support LT and even allow LT to use LISP. The idea is if customers want to be able to customize their product, they should upgrade to AutoCAD.

    On an up note, ADT users can breathe a collective sigh of relief. Autodesk now says that ADT will be allowed to grow and develop as a product. They took a look at the numbers...ADT users outnumber Revit users by almost 100 to 1. I guess Autodesk doesn't want to piss off everybody.

    Open Design Alliance Posts Survey
    Do you know how may APIs AutoCAD has?

    AutoLisp. Visual Lisp. Scripts. DCL. Diesel. ADS. ARX. DBX. VBA. And probably more that I can't even remember.

    The Open Design Alliance is asking for your guidance. And it won't take long. Just a dozen or so questions... and your answers will help provide clarity to the importance and use of the various AutoCAD APIs.

    The Open Design Alliance is not affiliated with Autodesk. They are an independent organization that promotes the open exchange of drawing formats; such as converting from Pro/E to AutoCAD. However, Autodesk has recently announced that they are shifting their API to .NET. Additionally, future features may not be supported by LISP, making it difficult for the in the trenches type of hacker.

    To check out the survey... »

    Convert your old LAY files
    If you saved your layer states in a LAY file, you may be disappointed that AutoCAD2004 uses LAS files to store your layer states.

    However, the Express Tools that come free with AutoCAD2004 include LMAN. This allows you to import your LAY files. You can then use your Layer Manager to save them as LAS files.

    Pocket PC "Must-Have Daily-Use App Shootout!"
    Come experience the mobile friendliness of the Northern California Mobile Computing SIG - also known as the San Francisco Pocket PC SIG.

    We welcome mobile professionals and device enthusiasts, or those considering new mobile technology. We usually meet on the third Wednesday of the month to discuss and share the latest hardware and software technology in portable and wireless devices, such as Pocket PC's, tablets, Smartphones, GPS, etc...

    Find out More... »

    Corrections and Apologies
    Bruce Gemp writes:

    However, this time I would like to point out some errors in your recent newsletter. The second sentence "Bruce reports that the IGESIN and IGESOUT commands automatically turn off the CMDDIA variable and forget to switch it back on when they are though." This is an incorrect statement. As per my last email (see attached) please note that I stated that "We were having a problem here with IGESIN & IGESOUT Dialog Box not appearing. It appears that a lisp routine that was being used turn the CMDDIA variable off and neglected to turn it back on again." The IGESIN & IGESOUT commands were not changing the CMDDIA variable rather it was an lisp routine that was the culprit.

    Further in the article it is stated that "The CMDDIA variable turns off any command dialogs; i.e. you type layer and it brings up the layer dialog. Well, it won't if CMDDIA is turned off". This statement is incorrect as there are setvars there are certain variables that handle different functions that control different dialogue boxes. The CMDDIA variable controls whether dialog boxes are turned on for PLOT and external database commands. (Note: IGESIN & IGESOUT are external database commands.) This variable does not affect the layer dialogue box. I have been unable as of this email to find the setvar that affects the layer dialogue box.

    The FILEDIA variable suppresses display of the file dialog boxes. For example, if FILEDIA is set to 1, SAVEAS displays the Save Drawing As dialogue box. If FILEDIA is set to 0, SAVEAS is displayed as prompts on the command line.

    Whereas the OSNAP controls ones OSNAP settings the SNAPMODE variable turns the Snap mode on and off. Then there is AUTOSNAP setvar which controls the display of the AutoSnap Marker and turns the AutoSnap magnet on or off. In order to evoke the IGESIN & IGESOUT dialogue boxes one has to use the CMDDIA setvar as the FILEDIA setvar will not affect the IGESIN & IGESOUT dialogue boxes.

    My apologies if I misstated Bruce's concern and my thanks to Bruce for the clarification.

    Free Lisp Routine for Softdesk/LDD
    Contributed by Skyler D. Mills, Rhode Island - A lisp routine to change individual attributes in Softdesk point blocks.

    Softdesk used a block for surveying points, consisting of an AutoCAD point, and three attributes: elevation, description and point number. This routine is used to individually control the obliquing angle and color of attributes.

    Softdesk was acquired by Autodesk and can now be found hidden in the Details module of ADT. Details can only be run in Single Document Interface Mode (only one drawing open at a time).

    I hear from users all the time who still have not moved from Softdesk. There are some wonderful tools in there. If you haven't checked out Details in your version of ADT, spend your lunch hour playing with it - you will be pleasantly surprised. I bet you find at least one tool you love.

    Download this lisp routine... »

    12th ANNUAL INTERNATIONAL CONFERENCE ON ISO 9000
    February 23-25, 2004
    3-Day Conference
    Hilton in the Walt Disney World Resort, Lake Buena Vista, FL

    The most comprehensive conference that combines ISO 9000:2000, ISO/TS 16949, AS9100, ISO 14001, TL 9000, OHSAS 18001, IWA 1, ISO 13485, Continual Improvement, Customer Satisfaction, Web-Based Applications, Value Stream Mapping, Quality Characteristics, Value-Added Auditing, Balanced Scorecard and Six Sigma.

    For this 3-day Conference, the regular registration fee is $995. However, if you register by January 16, 2004, you will receive a $50 discount and a Palm Zire or an HP PhotoSmart 120 Digital Camera as your early- registration gift. Special discount for groups and for Government employees. One-day registration is also available.

    For more information... »

    Using Notepad to Determine Drawing Version
    To determine the version of AutoCAD that created a particular DWG or DXF file, open the file as a text editor (save DXF files in ASCII text format first). The first six bytes of a DWG file identify its version. In a DXF file, the AutoCAD version number is specified in the header section. The DXF system variable is $ACADVER. Here are the version identifiers for the various releases. Note that more than one release uses the same identifier when the drawing format remains fully compatible.

    • AC1018: AutoCAD 2004
    • AC1015: AutoCAD 2002, 2000i, 2000
    • AC1014: AutoCAD Release 14 (Release 14 sample
    • drawings use AC1013)
    • AC1012: AutoCAD Release 13
    • AC1009: AutoCAD Releases 12, 11
    • AC1006: AutoCAD Release 10
    • AC1004: AutoCAD Release 9
    • AC1002: AutoCAD Release 2.6
    • AC1.50: AutoCAD Release 2.05

    Do not modify the file in Notepad or you may corrupt the drawing file!

    Quick Links...

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