Dimensions Read from Wrong Direction?

[doni49]

For some reason when I place a dimension that's not horizontal, Acad wants to make it read from the left side of the sheet (see the image).  I need it to read from the RIGHT side of the sheet.

[doni49]

I found a setting under the Dimension properties that sorta helps but:

1. It seems like I shouldn't need to either make a new style for this or change the property overrides for dimensions like this.
2. All this does is rotate the text 180 degrees -- but now it's "below" the dim line.

[Patchy · Accepted solution]

I've seen it before but forgot why it was that way so I go around it with autolisp.

;;; FDT.LSP Flip Dimension Text
;;; Cadalyst Tips & Tools Weekly - April 7, 2008
;;; (c) Cadalyst and Stephen Grace, 2008
;;; by Stephen Grace

;;; Utility extracted from My Office Standardization Utilities
;;; Stephen Grace, Public Works and Government Services Canada, 2008
;;;===============================================================================
;;; Flip Dimension Text
;;; Fixes upside down dimension text
(defun FlipDimensionText (/ ss cnt EntName EntList)
(setq ss (ssget '((0 . "DIMENSION"))))
(setq cnt 0)
(while (< cnt (sslength ss))
(setq EntName (ssname ss cnt))
(setq EntList (entget EntName))
(entmod (subst (cons 51 (- (abs (cdr (assoc 51 EntList))) PI)) (assoc 51 EntList)EntList))
(entupd EntName)
(setq cnt (1+ cnt))
)
)
(defun C:FDT () (FlipDimensionText))
;(princ "\nFlip Dimension Text, Type FDT to run.")

[doni49]

Thanks.  At least I'll be able to finish my plan AND have it look right too.

[steve216586]

Is the screen shot taken from a viewport? I've seen it where it will switch if the angle of rotation, within a viewport, is past a certain number of degrees.

[Anonymous]

Is there any possibility that those horizontal lines are not exactly horizontal? If either the lines or the dimension are rotated even a fraction of a degree counter clockwise it would show like that.

[Anonymous]

One easy way to get your dimension oriented the way you want is to rotate the UCS around the z-axis 180 degrees before placing the dimension.

[doni49]

Thanks but that'll never happen here.  We DO NOT rotate the UCS.  And even doing it temporarily runs the risk of forgetting to change it back.

[Anonymous]

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@doni49 wrote:

Thanks but that'll never happen here.  We DO NOT rotate the UCS.  And even doing it temporarily runs the risk of forgetting to change it back.

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Yeah, I was going to add a cautionary caveat.