How To Adjust Line Length Without Moving Attached Objects

Thank you for your reply. No doubt what you have said will work, but I expected such a basic requirement to be a simple one step operation in this program however it appears this is not the case.I also use another CAD program and to reduce line length I simply select the line properties and enter the new length required. The line length is then reduced automatically using the start point from which the line was drawn as the datumI think it would help me if I knew the key strokes you are using to perform this operation. Ideally I would like to be able to key in the precise new length with dynamic input or using the line preperties menu. Thank you so much for trying to help me.Bill A. Not to be picky, but the other CAD program may actually be hindering your work.

You can apply motion path animation effects to move slide objects in a sequence that tells an effective story. For example, the plane on the right (below) shows the starting point of the plane, and the dotted line between the two planes shows the path it will take when the animation plays.

The 'lines' we work with are acually just segments. They are defined and controlled by two points. Additionally a midpoint is added for our convenience. This is very generic, not restraining the creation, use or editing of the line.To define and edit lines from their 'first' point actually limits your ability (at least mentally) to change the line to that point. I believe that once you get the hang of the AutoCAD commands that will help with line length (offset, trim, extend, stretch, scale, etc.) your horizons will expand tremendously.

The ability to see a line from both ends and as a simple connection from one pont to another (rather than an object with a beginning and end) helps you see your work from a more 'global' perspective.Don't give up on AutoCAD because of habits formed using other software.jeff. JeffMany thank for your encouraging words. It is so good to have a forum such as this where one can find help.The line concept in AutoCAD is obviously different. It might be better than the competition, however I am open to being convinced about that. I was setting out a site from a surveyor's note book measurements (pencil and paper) and trying to get them to work.

The site was irregular in shape and I was trying to fix particular measurement points using line lengths and intersecting arcs. A method which works very easily using TurboCAD (Prof V11)which enables you to change the line length easily using the properties menu.However to familiarise myself more with AC, I repeated the operation using arcs and the radius dimensioning tool and succeeded. Thanks AgainBill. I have a similar situation. Before in AutoCAD 2013, If i watned to change the length of a line segment I would simply select one end of the line, move the cursor in the direction I wanted (wether it be to lenghten the line or shorten the line), enter a distance vaIue and it would change the line according to that value.Now, we recently upgraded to AutoCad 2015 and with this program that is no longer the case.

If i click one end of the line segment and move the cursor in the desired direction, like before, and enter a distance value, the line segment becomes that length instead of changing the length.Example: I have a line segment that is 100'-0' long. I want to increase length by 6'. So I pick on end and move cursor accordingly, I enter the value 6' and the line now becomes 6' long.I could use the lengthen or stretch commands, but to me the 'click, drag, and enter distance' works faster.A co-worker of mine had already fixed this problem for me by changing the value for a certain system variable. He doesn't remember and I don't remember which one it was? Could any one help?

I am trying to find a way to calculate a moving cumulative average without storing the count and total data that is received so far.I came up with two algorithms but both need to store the count:. new average = ((old count. old data) + next data) / next count. new average = old average + (next data - old average) / next countThe problem with these methods is that the count gets bigger and bigger resulting in losing precision in the resulting average.The first method uses the old count and next count which are obviously 1 apart. This got me thinking that perhaps there is a way to remove the count but unfortunately I haven't found it yet.

It did get me a bit further though, resulting in the second method but still count is present.Is it possible, or am I just searching for the impossible? This is not entirely correct. What @Muis describes is an exponentially weighted moving averge, which is sometimes appropriate but is not precisely what the OP requested. As an example, consider the behaviour you expect when most of the points are in the range 2 to 4 but one value is upwards of a million. An EWMA (here) will hold onto traces of that million for quite some time.

Daikin oil cooling manuals pdf. A finite convolution, as indicated by OP, would lose it immediately after N steps. It does have the advantage of constant storage.–Mar 20 '17 at 8:26. The answer of Flip is computationally more consistent than the Muis one.Using double number format, you could see the roundoff problem in the Muis approach:When you divide and subtract, a roundoff appears in the previous stored value, changing it.However, the Flip approach preserves the stored value and reduces the number of divisions, hence, reducing the roundoff, and minimizing the error propagated to the stored value. Adding only will bring up roundoffs if there is something to add (when N is big, there is nothing to add)Those changes are remarkable when you make a mean of big values tend their mean to zero.I show you the results using a spreadsheet program:Firstly, the results obtained:The A and B columns are the n and Xn values, respectively.The C column is the Flip approach, and the D one is the Muis approach, the result stored in the mean. The E column corresponds with the medium value used in the computation.A graph showing the mean of even values is the next one:As you can see, there is big differences between both approachs.