Hello,
Can anyone explain why it looks that, in the conceptual environment, the Hosted U and V Parameters are using imperial units in spite of the fact that the Project Units are set to metric?
This is found at least in Revit 2016 and 2017.
Thanks
J
If you look at the image in the post the U and V values show "1" while the dimensioning of the Point shows 305 mm. It is rounding the 304.8mm.
No, it's not a dimension value. It's a value that indicates relative position of the point on a surface. The Hosted U parameter is like an "Y" coordinate, and the Hosted V parameter is like a "X" coordinate on an imaginary 12 x 12 grid of a surface. The center of the coordinate system is at the center of the surface. A value of zero for both U and V will locate a point that is hosted on a surface, at the center of the grid, center of the surface. A value of 1, 1, will move the point 1 grid to the right, 1 grid to the North.
@Alfredo_Medina you make a good point. That makes sense. But then again, why is grid set in imperial units? And where can I change the grid settings so that moving steps on the grid are easier to use in a metric enviroment?
@Alfredo_Medina if it is a -6 to 6 grid should the max values not be limited to those? I am able to type larger values on the UV parameters.
I am sorry for so many questions but I found hardly any info on this topic on the internet and the ADSK help is does not mention it at all. Actually, it seems out of date since it mentiones the Center (Front/Back) planes and all that.
Many thanks for your time to clarify this.
I understand what you say. And it makes sense to reference points on surfaces using UV Grid Coordinates.
It just looks strange that the Grid Positions match the Decimal Feet units exactly.
If I want to drive the constraints by associating a parameter to it, and if I want to do it in metric units, I will always need to create an auxiliary parameter to convert from Feet to MM.
It really feels that the programmers forgot to code the conversion in for these parameters.
These points are constrained to the YZ plane.
Whenever I try to move the points to different places their distance to the origin measured in feet always matches the U and V parameter values.
File attached. Do they show different values when you move them?
Looks like the metric adaptive template is not built from scratch but based on the imperial one. there is nothing you (we) can do about it except for requesting Autodesk to fix it.
For now, you can manually enter in the value you need divided by 1 foot, which is equivalent to enter in the value for the dimension in the model view.
I take my previous statement back. The value does work in decimal feet, even in the metric template. You are right on that. Is this an inconsistency? Yes.
Having acknowledged that, however, I do not think the units are very important or useful in this case, and there is always the chance to convert one unit to the other if that is necessary. The reason for my comment is that points are not usually driven by linear dimensions in this template. The U V parameter refers to grids in surfaces, not in linear dimensions as in the example posted in this thread. Notice, in the image below. A value 0 and 0 for U and V in a circular surface puts the point on the center, regardless of the units. But, in an irregular surface, a value of 0,0 puts the point at one corner of the surface? Which corner? left or right, up or down? it depends maybe how the surface was made.
That was it precisely. Many thanks.
Sorry if my previous posts were not entirely clear on my query.
