topic Re: Stretch Relative/Absolute in Modeling

Stretch Relative/Absolute

Zdenko — Fri, 19 Apr 2024 16:39:13 GMT

read most if not all of the posts i could find on stretching and have not been able to solve? i have a beam that simply needs to be stretched 12' on either end. seems yesterday stretching elements was not a problem. for some reason when i try to key in 12' it gives me either a stretch down near the origin of 0,0 or it gives me a beam that is exactly 12' long or it moves it to the left of the end point of the beam itself? i have gone bonkers selecting/deselecting switches in the tracker and work environments to the point i have no clue what is what anymore. any suggestions?

Operating system used: Mac Apple Silicon Sonoma 14.4.1

Re: Stretch Relative/Absolute

aarkell — Fri, 19 Apr 2024 19:55:11 GMT

Are you trying to stretch the ends in plan? If so, you can click on an end node of a beam and before dragging hold down shift and it should give you the option to then type in the additional value you want it to stretch.

Re: Stretch Relative/Absolute

Zdenko — Fri, 19 Apr 2024 19:59:13 GMT

lol...you again 🙂

yes that is what i was trying to do? i ended up using guide lines to stretch out. i will try the shift key, but yesterday it was automatic with the tracker and was able to work all day with no issues. i can draw lines with no issues but for some reason this has me scratching my head? something changed and that is the part i am frustrated with.

Re: Stretch Relative/Absolute

aarkell — Fri, 19 Apr 2024 20:03:01 GMT

I don't believe anything has changed. You select the beam, click the node you want to stretch, and when you hold down shift key the distance value in your tracker should switch to zero. Still holding the shift key you can then press tab and enter the value you want your beam to stretch. Maybe you are releasing shift too early?

Re: Stretch Relative/Absolute

Zdenko — Fri, 19 Apr 2024 20:13:26 GMT

the only difference is i have not been using the shift key. typically i have been able to select the node and move the mouse in the given direction is all that was needed.

Re: Stretch Relative/Absolute

Barry Kelly — Sat, 20 Apr 2024 07:32:50 GMT

If stretching is relative to the origin (you will see a line linking to the origin), then turn on 'Relative Coordinates in Tracker' so it will be based on the other end of the element.

And to stretch a given distance from any point, stretch and move cursor to that point then type distance required followed by '+' to add the distance or '-' to subtract the distance.

Barry.

Re: Stretch Relative/Absolute

Zdenko — Mon, 22 Apr 2024 19:31:51 GMT

thank you Barry! need to better understand the software algorithm. found a you tube video that looks promising.

Re: Stretch Relative/Absolute

Zdenko — Tue, 23 Apr 2024 15:44:37 GMT

hear is an example of my lack of not understanding how to stretch? i can easily stretch lines, move, drag a copy by inputting dimensional information. all i want to do is stretch the ends of these walls by 12"? i have tried relative on/off but obviously don't understand such a basic command?

Re: Stretch Relative/Absolute

Barry Kelly — Wed, 24 Apr 2024 02:01:57 GMT

Here I am stretching a wall 2000mm - you would just use 12"+ instead of 2000+

Barry.

Re: Stretch Relative/Absolute

Zdenko — Wed, 24 Apr 2024 14:30:16 GMT

ok now i see what the difference. but i don't recall having to place the pencil at the starting point to stretch a particular length. i could have sworn that i have been able to stretch the elements by simply making the element active, selecting node/point and move the cursor in x or y direction, using shift or visual, and then key-in the distance without the "+". regardless, i will pay more attention to my process.

have a good night and thank you Barry.

Re: Stretch Relative/Absolute

Zdenko — Wed, 24 Apr 2024 18:22:11 GMT

hey buddy appreciate all your help, but i give up!. my tracker changes from 3 lines (distance, angle to z) and sometimes it shows (distance, angle, x, y, z). tried to use "-" and still get the same inconsistencies. resorting to guidelines...

Re: Stretch Relative/Absolute

Mahmoud Qenawi — Thu, 25 Apr 2024 11:46:21 GMT

Hi @Zdenko,

In addition to all explained above by Barry I tried to show stretching technique in a short video, it may help more.

* I could stretch the wall by 2 ways, either typing the total desired length in Distance area or putting the distance I need to add to or subtract from the wall.

- For example, I need to stretch a wall = 2-meter length,

1) Select the wall, to see the reference line location.

2) Click on the black dot at the wall end, don't move or press shift.

3A) Type 3 in Distance area then it'll be 3-meter length, or type 1 to be 1-meter length.

3B) If you type 0.43+ in distance area you get it 2.43-meter length, and if you type 0.43- you get it 1.57-meter length.

* As you see sometimes you need Archicad to calculate it for you.

** All this should be applied provided that you activated the Relative coordinates in tracker as Barry explained above.

*** Sorry if + & - are not shown in the window background but I hope you guess their positions correctly.

**** Pls watch the attached video below while applying the above-mentioned steps.

Re: Stretch Relative/Absolute

Zdenko — Thu, 25 Apr 2024 14:43:28 GMT

hi Mahmoud - generally speaking most of my stretching is related to increasing/decreasing the element by a specific distance as you have shown. looks like the "+" is working and understand but what am i doing wrong with the "-".

Re: Stretch Relative/Absolute

Mahmoud Qenawi — Thu, 25 Apr 2024 15:18:01 GMT

@Zdenko, I see you're using Mac, right?

Sorry I'm using win. so, I think you should manage this minus operation, try to put minus before the number & see if it's going well.

Re: Stretch Relative/Absolute

Zdenko — Thu, 25 Apr 2024 18:42:04 GMT

no problem and appreciate the assistance Mahmoud.

Re: Stretch Relative/Absolute

Barry Kelly — Fri, 26 Apr 2024 00:52:15 GMT

@Zdenko wrote:

hi Mahmoud - generally speaking most of my stretching is related to increasing/decreasing the element by a specific distance as you have shown. looks like the "+" is working and understand but what am i doing wrong with the "-".

Because you are Imperial measurements, I think you may have to type '-' twice.

i.e. 2 - -

The first minus is a shortcut for feet I believe.

I am not 100% sure, as I do not use Imperial measurements.

Barry.

Re: Stretch Relative/Absolute

David Maudlin — Fri, 26 Apr 2024 13:08:37 GMT

@Barry Kelly wrote:

@Zdenko wrote:

hi Mahmoud - generally speaking most of my stretching is related to increasing/decreasing the element by a specific distance as you have shown. looks like the "+" is working and understand but what am i doing wrong with the "-".

Because you are Imperial measurements, I think you may have to type '-' twice.

i.e. 2 - -

The first minus is a shortcut for feet I believe.

I am not 100% sure, as I do not use Imperial measurements.

Barry.

That is correct, need to type "-" twice.

David

Re: Stretch Relative/Absolute

Zdenko — Fri, 26 Apr 2024 14:42:05 GMT

thanks guys that was it.