Extending & Trimming - why does this happen?

[Guitte]

https://www.dropbox.com/s/eoqlt3huclodu2p/FP003-ShpDwg-Zone08.dwg?dl=0 There is a red cloud with an arrow indicating the line.

[Guitte]

Trim works when changing the z value manually to 0

[steven-g]

I am not seeing a problem, I can trim that line or extend it, and I can use it to trim or extend other lines, without problem !!

[Guitte]

That's awkward, still cant do anything with that line on my machine.

[Guitte]

Thanks for the reply and for looking at the drawing Steven-g. Guess it is just one of those issues that cant be explained.

[steven-g]

It doesn't look like a setting in the drawing, it could be a setting on your machine, but I can't think what would cause that behaviour.

[ReMark]

Seems Express Tools can only be used in 3ds Max, im using ACAD LT.

Express Tools is a feature of full AutoCAD not LT.

 

You might want to -purge (Regapps first; All second) then audit your drawing file.

 

There is something that is not quite right with this drawing. What is the source?

[Guitte]

Hi ReMark,

 

Will learn in time what can and cant i do in AutoCAD LT as the guys mention some of the tools. Used "help" to find express tools and gave me 3ds Max, what that means is probably some kind of a 3D application or something.

[ReMark]

No, I'm afraid it doesn't. Express Tools is a collection of lisp routines normally included with full AutoCAD. Examples: EXTRIM, TXT2MTEXT, Super Hatch, etc.

 

Why does some of your geometry have differing Z coordinates? What is the original source of the drawing?

[steven-g]

I couldn't find anything to cause the problems, there are about 900 items with Z not at 0, and about 90 items on the hidden layer, but before altering those I had no issues with the trim command

[ReMark]

There are three lines on a layer named Brickwork with an unusual set of Z coordinates. How did these get created?

[Guitte]

Everything worked perfectly, today and a previous time i found that trim and extend gave me hassle. Today i just got tired, cause it became worse in this drawing and want to find out why. Only thing that did work was to select a group of lines change all to have Z to 0.

[Guitte]

ReMark, i have done the -purge twice and the overkill. No luck. The drawing that you have is not suppose to be there, it is not part of this particular drawing. Z=-1

.E+99 was the macro i was given and that was the outcome.

[ReMark]

How long have you been using AutoCAD?

[Guitte]

For 5 to 6 years. Never had that much problems when i was at the previous company using full AutoCad version. Had problems, could solve them. Now im making more effort of solving the problems rather just leaving them.

[ReMark]

What is the original source of the drawing?

 

One suggestion: erase the three lines on layer Brickwork as they are messed up and redraw them.

[Guitte]

I started it from scratch, from our template. Nothing imported or exported, nothing.

[ReMark]

Not the answer I was hoping to get. OK...so what do you need at this point?

[steven-g]

On the original drawing the objects with odd Z values appear to be the aluminium profiles, did you maybe create those using the array command. The array command does have the option to array in all 3 axis and these objects are spaced out nicely with a step in the Z axis of 577mm between each one, which could explain why it happened.

[Guitte]

At this stage i have selected groups of lines and went to properties to correct the z value to 0, the micro doesn't work unfortunately. Seems after i have done that it looks good... so far. What makes me wonder is, can someone else's settings interfere with a drawing i created when they want to do some modification?