The dimensions, in order to work with the resizing of entities, or the movement of the same, or itself, require that you include both end points of your extension lines as they lay on the object being redefined. Now often extension lines don't extend all the way to the object (or they look like they don't). If you were to select the object, and zoom until you couldn't zoom anymore on the end point of when the extension and dimension lines intersect, you would see a single, solitary point (point: no width, no height, and no length defined only with a dot to help humans "see" the point). You simply must include these or the dimension will not change and the dimension text won't either.
If you stretch the object, and the dimension, you would think the dimension text would update. There are several reasons it may not concerning system variables (dimaso is one that comes to mind, turn associative dimensions on and off), exploding of dimensions, or simply typing in a value rather than letting the dimension apply it's own default value. Hope this helps a little to understand dimensioning... There is a LOT more out there on the subject. You can start in our progeWIKI to learn more at
http://www.icadsales.com/index.pl?id=20266
Good luck and don't hesitate to ask here, the iCADsales.com forum, or the progeSOFT Trial forum...
uraniumtiger wrote:Regarding your question about whether or not the "associativity [I] assign work[s] in AutoCAD": Again, I am not sure what you mean. I guess you mean: do I have the same problem in AutoCAD? (With the problem being that when I move an item with dimensions some of the dimensions get screwed up/moved around during the move.) The answer to that question is that I don't know because I don't have access to AutoCAD at this time. I used AutoCAD years ago and I do not remember any such problem.