drawing/stretching a line so it ends above a given point

[ittayd]

I'm starting to draw a line and I want it to end above a point so that the next line I draw will be perpendicular to the first line and will end at the point. E.g., in the attached picture, I'm starting to draw the orange line and want it to end above the top-right corner of the rectangle.
example.png


How can I do that?.



I don't know how high the line above the point (so can't use 'fro')

Regards,
Ittay

[Dadgad]

Welcome to the forum.
Turn on your OBJECT SNAP TRACKING and other values as shown in the image of the OSNAP tab of the DRAFTING SETTINGS dialogue box.
After starting your line by selecting the first point, HOVER over the grip which is at the corner of the box.
Do not click on it, and the program will acquire the X value of that point, then move up toward the line you are creating and you will
see a tracking vector generated which will include a snappable point of intersection with your new line.
Turn on your ORTHOGONAL MODE to avoid any issues.

I suppose you could use parametric constraints too, but that is a whole different can of worms
and seems over the top for such a simple case. But you should know that they are available and very good tools.

I have succeeded in making this sound really difficult, which it is not.

[eldon]

Simply use the Perpendicular Osnap, and click on the right hand line of the rectangle.

[Dadgad]

Simply use the Perpendicular Osnap, and click on the right hand line of the rectangle.

Good call eldon!
I use the PERPENDICULAR snap a lot, but I never knew it would do that, I thought it would only work if the line actually crossed it.
I also use APPARENT INTERSECTION a lot.

I knew I had made that harder than it needed to be!

[JD Mather]

I would just use tracking and I leave on polar tracking as it is the same as ortho only more.

[BIGAL]

Old fashioned way .X .Y etc

Start line then .x pick new line for y

[Dadgad]

So many different ways to go.
So much to learn, so little time.

[manny_pacquiao]

just simply "strech commad" will do just make sure to turn polar and otrack buttons on

Command: s STRETCH
Select objects to stretch by crossing-window or crossing-polygon...
Select objects: Specify opposite corner: 1 found
Select objects:
Specify base point or [Displacement] <Displacement>:
Specify second point or <use first point as displacement>:untitled.jpg