AutoCAD Version 2.1 (Release 6) May 1985

AutoCAD Version 2.1 (Release 6) May 1985

ในเวอร์ชั่นตอนเริ่มทำงาน ผมได้รู้จัก AutoCAD อันแรกเลยก็ 2.1 นี่แหล่ะครับ แต่ผมใช้ 2.1.4 ครับหน้าจอมอนิเตอร์ยังใช้เป็น MONOCHROME กันอยู่เลย ที่ไหนมีจอสีให้ใช้แสดงว่าที่นั่น หรูมากๆ เริ่มต้นกันแบบงูๆปลาๆเลยก็ว่าได้ ลองผิดลองเขียนลองใช้คำสั่ง มาดูกันว่ามีอะไรที่เพิ่มเติมจากเดิมมาบ้างครับ

รูปคือแผ่นติดตั้งโปรแกรม Installation Disk Programe Autodesk3.exe Version 2.18 ครับ
กลายเป็นของโบราณที่หาได้ยากไปแล้ว

Interactive object selection. You can select objects in multiple windows, and add or remove objects from the selection-set before submitting the set to any edit/inquiry command.

Directory pathnames are now honored on all filenames, and you can maintain multiple drawing directories or multiple AutoCAD configurations.

Plotting enhancements:

Revised and enhanced the PLOT routine.
Plots can now be rotated 90 degrees.
Optimized the changing of plotter pens and further optimized pen movement.
Multiple pens can now be used with single-pen plotters; -AutoCAD will pause and prompt you to change the pen manually.
New LIMITS On/Off options allow you to turn the limits check off entirely.

A prototype drawing is now used to establish the initial environment (limits, modes, etc.) for a new drawing. You can create as many prototype drawings as you wish.

QTEXT now produces a rectangle rather than two parallel lines.

You can now copy files from the File Utility menu (Files command).

The DELAY command has been calibrated to delay about 1 millisecond per increment.

New GRAPHSCR and TEXTSCR commands permit scripts and menu items to flip between the text and graphics displays on single-screen systems.

You can use the UNITS command to select display and input of angles in grads or radians.

BREAK now allows a zero-length break, splitting an object into two entities.

FILLET was extended to handle Polylines (see later).

The VIEW command has a new Window option, permitting you to define a named view without first zooming in to that view.

3D Level 1 for 3D visualizations with optional removal of hidden lines (ELEV, VPOINT, and HIDE commands). 3D visualizations can be edited and plotted just like 2D drawings.

Polylines (PLINE and PEDIT commands), with curve-fitting capability.

New Freeze and Thaw options for the LAYER command.

Objects can be highlighted during the selection process.

User-supplied programs and operating system utilities can be executed as external commands while running AutoCAD.

You can define variables to hold integers, reals, strings, and points, and can use these variables (along with predefined system variables) in arithmetic expressions. These expressions can be entered in response to AutoCAD data prompts.

The full AutoLISP programming language was included in Version 2.18 (January, 1986), which was otherwise one of a series of minor updates. AutoLISP extended the variables and expressions feature to let you write and store LISP programs that implement custom commands.

New Commands:
BLIPMODE   permits control over the drawing of marker blips
CHAMFER  

added

DXBIN
CAD/camera support
PRPLOT   printer plotter output