if you havent saved lately, you could do a soft crash, and not recover from auto save. this takes careful consideration about how often and what you may loose. proceed with caution. But if your timing is right you can open the job back to before the shift.

I cant see you attachment. I'm assuming you are bringing in a vector plan?
there are a couple of rubys you will find indispensable for this work(IMO) :
one is called Weld, and another called selection memory 2
Weld makes polylines of all your selected cad ingrediaents.
Selection Memory 2 works by helping you recall sets of lines when you are selecting masses of lines to Weld.

Tracing a topo/curb and gutter/ parking, street layout would be a real pain if you didn't have to do it.
Regards,
Hank

Try to copy and psste the tff from your browser window. Jpgs are easy to bring into SU using the same method. I think I have changed the extension on tiff files to jpgs and had success. just do it to a copy of the original file to test. If the pdf looks better you can take a screen shot of the image and then import that image into SU. But yes the image quality is less than the origina, and your back to the same issue.
You can scale the image to use in SU.
The most effective method I have used is to select a known distance between two definable points in the import, and place a SU line there. The more definable the points the greater your accuracy. After you make the line, select the tape measure, and the two points and give it your known value. Then trace your drawing in SU.

Place a large flat rectangle under the plan after scaling and before drawing. It give you an inference plan.

When I have an old client ask me for something new on a hand-drawn set, I take the original to the print shop and have them scan in the sheet; as if they were copying it to print b/w. I usually spec the file type to be jpg or pdf and tell them to email the file to me. Instant electronic copy that is flat and clear.
HTH

Edson,
Also, thanks for the links to the video tutorials. Very good...

@unknownuser said:

make your building into a group, edit the group and then place the section plane

Exactly what I was needing...thank you Edson. I just have to set a new section...that portion is already a group. thank you Edson.

The screen shot is made by a real functional tool called Snagit 8 (http://www.techsmith.com/). I tried practically every screen tool available when my laptop didn't have a screen tool in it. This one has so many tricks, it is well worth the price...after you use up the free full functional trial ..of course. and no, they don't pay me to say that.

The boundaries of my sections are acres wide

It is a horizontal plane, and yes if I raise it (the plane) the roof will show but I will loose the cut at the optimum location on the walls: showing the windows and stuff I want to see..
I want to push the boundary of the section plane to the division line, where the roof wont be getting cut but the floor plan will.
ThX

The Section feature includes the far extents of anything that is on my screen, and I want to limit its field of spread.
I am trying to figure out how to adjust the section plane in the cut dimension. There is a floor plan that I am showing as a section and the adjacent roof is getting cut about mid height. I want to move the section plane boundry to the edge of this roof so it shows in whole and the floor plan at the same height shows sectioned.

I'll delete the pic later.

thought I'd translate...

In the promo animation Google this drill seen, the so explosively flies apart. How can you do it? Which scripts brauce I think?

But the default is probably not, right?

Thank you and greeting

Nice lesson Jean, very clean, quick technique. thanks

ArchBum
I downloadded your file and worked at it, I didnt get to the point of lining it all up..but I think you could get there by either reorientating your axis to your "in flight" roof, or orient your roof to the SU default axis and laying it out on center lines. Somewhere in there something is off center and keeping you from getting it perfect. If you copy it to a empty file and tweak it without other distractions, then copy and place it back into your working file, it should be easier.
another method would be to draw your front fascia with all ends connecting the PP it back to the rear. On the PP'd form draw the eave line raking up slope and then erase the unwanted drops. You can get your guidleines by using the tapemeasure tool red dot inference for out of plane parallel guidelines.
(IMHO)The key to aligning all your compound angles is re-orientating your axis to the work planes.
HTH

Edson,
Thanks for the mention of the pushpull_tool. I didnt know such a beast existed.
Have a good day.

RP Tools Mirror is a piece-o-cake. try it, 30 day demo

The outliner is a bit complex if you go deep. (for me anyway). I find I dont like dealing with the layers until I need to lighten up my screen or the model. Entities like dimensions, text, note text, heavy entities like landscape objects, a smooved topo. all these can be groped or componented and sent to their own layer until you need them.

...or to your last save
I could never need 100 undos...haha...except for that day...after all the undo and redo I did a controlled crash and all the stuff I was trying to get back through undo'ind was there!

and thanks...

I thought you grouped stuff to keep it from sticking, to allow you to place batches of stuff on a layer easily...but basically to keep entities of an object grouped until it was ready to component. I thought the component was a near finished assembly, something worth filing and using again, but the way it sounds many will component the line that is going to be the roof, and build from that.

what I learned yesterday is, if you inadvertently erased a group you might have to be creative to get it back, depending on how much work you had accomplished before you noticed,; but if you had made the same assembly a component and erased it (mistakenly), there is a copy of it in the component list.
I know... everybody else knows this....

The discussion of whether to nest groups in to components or nest components into groups could be long.

I just figured out why it is good to work with components instead of groups.

how far back can UNDO go? I was sorking in close proximity of some stuff that wasnt grouped, and I must have erased a group that highlited. Is it better to undo until I get to the eraased entity or do a hard shutdown and see if it is there under autosave? thanks