Autocad 1989

[Athina Dollison]

I need to quickly number polylines. In other posts I found a routine but you have to select each point where you want the number to appear . Ideally, multiple polylines should be selected and numbered depending on the order in which they were selected. I attach an example drawing.

I just leave the layers of interest in the drawing. The original drawing are sidewalks of streets with their corresponding materialities. Each of the polylines is a sidewalk with a certain materiality.

I think your bigger problem may be in determining where to put the text label, as the "centroid" of a polyline may well be outside its boundary. Somewhere I have a function that always finds a location inside the boundary. I think it's my SSURGO program that labels the soil type of numerous polyline boundaries. If I recall, it has to keep testing East-West and North-South until it finds a suitable location wide enough to contain the text.

Listen ramirez.m.1989, before we started, you were happy with typing in the description per object. I suggested layers so you dont even need to typed in anything. Now, we have a routine to number the polylines via selection. At first using a loop and then modified using Fence, I'm pretty sure beats placing the TEXT on the objects center(ish), typing the string number then creating the circle one after the other.

As far as I recall, my first CAD "workstation" was a Compaq Deskpro 368/20. Naturally, it was souped up with the optional 387 co-processor but I can't remember how much RAM was installed although I do remember that the RAM was on a large board in an ISA(?) slot with lots of chips on it. This must have been at the end of 1988 or early 1989 and I was running the just released AutoCAD R10.

Interestingly enough, the Compaq 386/20 was my first workstation as well. I know it had a co-processor, but don't know the specifics. I do know it had 4 MB of ram. The original owner paid in excess of $5000, I bought it used for $1200. The hard drive had not been wiped, and a DOS version of AutoCAD (Rel.11, IIRC) was still there. I know, I know - Mr. Autodesk would likely not have approved.

I started using CAD and going to school late in life. Prior to that I worked on the Board for doing any drafting. Worked mostly on the shop floor and in the machine shop, filled in drafting, till 2000 when I moved full time to the engineering/design department.

Yeah SLW I started drafting in HS around '85. Took 3 years of that and when on to tech school in '89. Been moving over to my new box at work and it's power is just crazy when looking back to these old machines.

I did take drafting in high school '69 & '70. I was not very good as I've never had really steady hands. Also I couldn't really keep a clean work surface due to oily hands. So it was another 15 years before I figured out that could at least do a decent sketch. Thank goodness for CAD software.

I started with Autocad late in life about 7 years ago, but the first time I used a cad program was in the early 90's, it was on a comodore 64, and it was a free program published in parts in a magazine, I remember spending 2 weeks typing out the program by hand (one christmas holiday) but I don't think I used it that much and it was very basic just simple line work.

Here is a Wiki of my first CAD workstation. A tectronix 4010, 1982. It was connected to a VAX mini mainframe computer that had something like 512meg of RAM, and 4 disk drives, each the size of a laundromat dryer.

My first CAD workstation was made by Applicon. The system used a PDP 11/04 and an 11 inch Tektronix 611 DVST (direct view storage tube) display. Applicon's principal market was printed circuit board design. In the early 70's they were looking at getting into IC design and fabrication as well as mechanical design and drafting. I was hired in 1972 by Applicon to help develop its mechanical CAD system. I would store the program I wrote in assembly language on cassette tapes. The system relied on a character recognition feature that allowed the user to free-hand draw symbols for various commands such as a circle to zoom in, a Z to zoom out, the letter D to delete, and an S to select geometry. It was an exciting time to be in CAD.

Our primary competitors at the time were Computervision, Gerber Scientific, M&S Computing (which would letter become Intergraph which was the system Bentley was modeled after), Calma and a few other "turnkey" systems. This was almost a decade before Autodesk introduced a deskful of applications at a computer show at Disney World one of which was a CAD system.

My first go at AutoCAD was at Uni. We had 2 seperate computer rooms that were called the DOS lab and the Macintosh lab. If you wanted to use AutoCAD you would use a computer in the DOS lab, if you wanted to use Photoshop you had to leave the DOS lab and goto the Mac lab....pretty stupid really when you think about it but thats how it was then.

I'm new to bricscad (to CAD in fact) and I have a question : I select several objects, I move/rotate/resize them and these objects are automatically de-selected, I know that I can use "selection set" but is there any way (or option) just to keep objects selected ? I think it's faster than working "with selection set", but maybe I'm wrong and I don't work the way it should be, what's your opinion ?

Once you run one command on a set of entities, you can have the next command operate on the same set of entities by entering P (for Previous) when being prompted to select the entities. I do not know if the P varies by language... See SELECT in the user's guide.

Alain, I've been using Autocad and Bricscad since 1989, and I've always felt the same way you do, that objects should remain selected after a command is finished. But we're in the minority in the DWG world.

Outside the DWG world, many CAD and graphics programs do it that way, including Sketchup, Vectorworks, and Photoshop. A selection set stays selected until you start a new selection set. But the normal drawing methods of Sketchup and Vectorworks make it easier to select everything with a single window or crossing, and so their selection method is non-cumulative: objects are not added to the selection set unless you hold down the shift key. Clicking on something that's not part of the selection set begins a new selection set. Clicking on nothing de-selects all. I think it really has to be done that way if you don't use the Autocad method of automatically de-selecting all after each command.

Brics has to maintain close compatibility with Autocad, so they probably couldn't provide an option to preserve the selection set even if they wanted to.

But AC and BC allow, via the PICKADD variable, non-cumulative selection. And with Lisp programming you can create custom versions of all the commands, adding a Select Previous operation to the end of every editing command, and a Select Last operation to the end of every entity-creating command.

I've done that, and I've turned off cumulative selection, and so when I use Bricscad it works just like Vectorworks. Objects remain selected until I either start a new selection set or draw a new entity, and any new entity automatically becomes the new selection set. I also draw using polylines rather than lines, multi-text instead of text, blocking of sub-systems, etc., which makes it easy to select everything with a single window or crossing.

I like this system much better, and would hate to have to go back to constantly pressing "P space" in order to keep operating on a selection set. But there's no built-in option for that system, and I doubt that there ever will be.

CAD-PLAN was founded in 1989 with the intention of providing designers and planners of the the metal construction and faade technology industry with a specially tailored CAD system. Today, the main product ATHENA has developed into the most successful CAD application for faade construction. The ATHENA application is based on AutoCAD, the most widely used CAD program in the world. In the course of time, the product portfolio has been supplemented by other software products. In addition to the products, the main focus is on the range of services. CAD-PLAN maintains partnerships with other software houses as well as with various profile system manufacturers.

After attending Arizona State University, Riddle went to work for a steel fabricator where he had his first exposure to CAD. The company had a $250,000 Computervision system that, although capable of 3D work, was used strictly for 2D drafting. The company was engaged in doing steel detailing for the Palo Verde nuclear power plant in Arizona. Riddle felt that anything they were doing on this project with the Computervision system could be done on a microcomputer-based system. About the same time Riddle began working at a local Computerland store where they provided him with free computer time to do with as he wanted.

Meanwhile, out in California, John Walker, who had a BS in general engineering from Lehigh University, started a computer business in 1977, Marinchip Systems, which provided systems built around the TI 9900 microprocessor.. Dan Drake, who was to be a key player in this story, joined Walker at Marinchip in 1979. Previously he had been a consultant involved in computer-aided manufacturing. By this time, Riddle was a selfemployed computer consultant. He produced some utility programs for Walker and Drake that they included with their early systems.

Considerable discussion went into how the company should be organized. While Walker acknowledged that a corporation would be best, he was very concerned about the way software royalties would be treated for tax purposes in a corporation. In an early document, he went into some depth concerning the perceived advantages of a partnership versus a corporation.[2] Therefore, for the first few weeks the business functioned as a partnership. Fairly soon, however, everyone became convinced that this was far too awkward and on April 26, 1982 the company was formally incorporated in the state of California as Autodesk.

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