Hi Erwin thanks for your reply, I understand what you mean with perspective
but it does seem odd that archicad dimensions show the correct amount in the 3d document, archicad clearly knows the height but i guess that is the quirk for perspectives, for example IF my section was at a 15 degree angle away from me/camera and not 'square' on then the ceiling height measured at the closest point to the camera would be a larger dimension when using a polyline than the further away ceiling height at the other side even though they are all the same height with a flat ceiling. measuring 3d space in a 2d plane with correct dimensions might be a bit hard ask for archicad/ the computer to process.
i guess it just irks me a bit as being 'square on' with my 3d perspective i kind of expect it to work out correctly
the best thing i can hope to do is to use a scale that outputs my text at a similar height which seemed to be around 1:500ish and/or create seperate favourites for when working in 3d documents that display at suitable sizes
Or the other alternative of using the 3d document as a sort of background behind my normal 2d cut cross sections and re scaled to match.
I prefer not to use axonometric views as the vanishing point in perspective really adds depth to the section that cant be achieved with standard axonometric views making them already too similar to a typical 2d cut cross section in my opinion.
but it does seem odd that archicad dimensions show the correct amount in the 3d document, archicad clearly knows the height but i guess that is the quirk for perspectives, for example IF my section was at a 15 degree angle away from me/camera and not 'square' on then the ceiling height measured at the closest point to the camera would be a larger dimension when using a polyline than the further away ceiling height at the other side even though they are all the same height with a flat ceiling. measuring 3d space in a 2d plane with correct dimensions might be a bit hard ask for archicad/ the computer to process.
i guess it just irks me a bit as being 'square on' with my 3d perspective i kind of expect it to work out correctly
the best thing i can hope to do is to use a scale that outputs my text at a similar height which seemed to be around 1:500ish and/or create seperate favourites for when working in 3d documents that display at suitable sizes
Or the other alternative of using the 3d document as a sort of background behind my normal 2d cut cross sections and re scaled to match.
I prefer not to use axonometric views as the vanishing point in perspective really adds depth to the section that cant be achieved with standard axonometric views making them already too similar to a typical 2d cut cross section in my opinion.
Last time I did this I went for "the other alternative of using the 3d document as a sort of background behind my normal 2d cut cross sections and re scaled to match".
As a test i dimensioned elements in the 3d document only in all orientations and archicad has measured them all correctly, its really just a scaling issue to display text at an accurate scale without having to manually resize text fonts, dimension marker sizes detail markers or anything else that is scale dependant.
im not sure if the 3d documents always come out at "the same scale/size each time" or if I had a much longer cross section or how far away i was standing from the cutaway section before it was saved into a 3d document whether that affects the scaling and therefore whether my scaling would always be different between each unique 3d document and whether scale dependant items might appear bigger or smaller each time with no control or consistency.
im not sure if the 3d documents always come out at "the same scale/size each time" or if I had a much longer cross section or how far away i was standing from the cutaway section before it was saved into a 3d document whether that affects the scaling and therefore whether my scaling would always be different between each unique 3d document and whether scale dependant items might appear bigger or smaller each time with no control or consistency.
