Units accuracy

[Tom Krowka]

I'm having a discussion with my coworker about the accuracy of the units and the effect on the drawing. He likes to use three or four decimal places of accuracy; he feels that otherwise the drawing elements, walls, roofs, etc. don't really line up on top of each other, and this causes display problems with the model and elevations. Sometimes it seems that when the drawing is zoomed, you can't get points to line up right over each other. Or it's extremely difficult.

I think it has something to do with the pixels and where each point actually is.

I like to keep mine set to one decimal place or 1/8", but I don't seem to have as many problems. Or maybe I do but it's lousy drawing technique.

Anyway, which setting is commonly used, and does it make any difference?

As always, thanks

[Tom Krowka]

ArchiCAD depends on precise feedback from the screen as to which pixel the mouse is pointing at when you click.

Therefore, it would seem to me if I reduce the resolution the accuracy would improve. Is that true?

[Anonymous]

A smaller pixel radius can help pick between nodes and edges that are close together provided you can see what you are doing. (One pixel on a hi-res monitor can be pretty small.) But it can also make it harder to hit the right spot quickly.

In any case, as long as you get the check mark or mercedes cursor the accuracy is the same.

[Anonymous]

When zooming in, some graphic cards can have problems with 'precise' screen display. There is a registry entry to fix this (in windows). If you feel comfortable playing with the registry browse through software/graphisoft and try it.

- Stuart

[Anonymous]

StuartJames wrote:
There is a registry entry to fix this (in windows). If you feel comfortable playing with the registry browse through software/graphisoft and try it.

What is the key name? I couldn't find anything that seemed appropriate.