LINE IS TOO SHORT!?!?!?!?!?

[jsteinhauer]

I take it this is still an issue for 2013? I'm trying to create detail components for Storefront/Curtain walls like Mike, and I'm running head first into this limitation. Draw a longer line, but that isn't the profile given to us by Kawneer.

Today's status = AutoDesk Fail...
Jeff S.

[rbcameron1]

It appears this won't ever be corrected. I haven't had any issues with it except for one thing. I go to move a series of lines that are connected at the ends every once in a while. Those lines sometimes go under the 1/32" mark and I get a warning, line gets delete and I lose something. Ctrl+Z and nudge again. AutoCAD and Inventor have no issues with this...it would be nice to have the ability, but not necessary. Doesn't Revit also have the same problem if the line is too long, like 3 miles or something? I'm more concerned with that.

Cheers,

RBCameron

[MikeJarosz]

Aluminum extrusions.......EXACTLY!!!

I had a project in Kazhakstan a while back. I was doing the curtain wall details. The aluminum extrusions were from a German manufacturer. They furnished us with a basic set of stock extrusion sections, drawn to perfection. Every intersection was radiused 2 mm. I was forced to develop some custom configurations without the tiny radius. They looked terrible next to the manufacturer's perfection.

[DaveP]

Just glanced at this thread again and misread the title as "LIFE IS TOO SHORT"

How true, life is too short to be forced to mess around with seemingly minor issues like this.

[david_peterson]

Just glanced at this thread again and misread the title as "LIFE IS TOO SHORT"

How true, life is too short to be forced to mess around with seemingly minor issues like this.

It's only a seemingly minor issue until you need it
Then it becomes a major pain in the butt. Just like yesterday when I was trying to sort through my project browser and I wasn't able to select multiple drawings to fill in parameters for sheet order and volume set. Then after banging my head against the wall I figured it out. You can only do it if you have both the properties window and browser window docked. How silly is that.

[antman]

Dave, if you don't want to dock them, you can use a non-Aero Windows theme. You pick the lesser evil. .-)

[Mike Sealander]

I think the problem lies with Revit's dynamic, parametric updating. Years ago, a CAD manager friend of mine (at Degenkolb in SF) said she liked AutoCAD better than Microstation because in ACAD, you could draw a line from SF to NY and be accurate to the 1,000th of an inch, or something like that. In Microstation, you might be 1/4 inch off. I think that much floating point precision would take up too much CPU bandwith if Revit tried to implement that level of precision.

[jsteinhauer]

Mike,

Did she really ever try to draw a line from NYC to SF? We had a project back in '06 where the 0,0,0 point was 400 miles away from our buildings. We couldn't draw a line at 0 rotation to save our lives. Well I take that back. We could draw the line at 0 rotation, but once we deselected the line and reselected it again, it would rotate it 1/1000th of degree.

Cheers,
Jeff S.

[MikeJarosz]

We had a project back in '06 where the 0,0,0 point was 400 miles away from our buildings.

The World Trade Center project origin is somewhere around Easton Pennsylvania. The Port Authority of NY & NJ picked that point. My speculation has always been that a point that far away puts all of their facilities (JFK airport, LGA airport, bridges, tunnels, PATH train etc., all in the ++ quadrant.

I believe Mike Sealander is right when he cites floating point as the problem. There are numbers that cannot be represented in floating point. I have always found it amusing to see people try to force Acad to make a true zero value for a point. The internal representation of numbers is so complex,it would take a book to explain it. In Acad, the z coord isn't even a simple number. It's a vector.

Just the conversion between binary and decimal is a thesis topic by itself! Google the title "Perils of Floating Point" for more info. As an example: 1/3 in binary is not a repeating number but 1/10 is...

[DaveP]

If you want to talk binary and decimal, here's a mind blower:
What does binary 1010 convert to in decimal?