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Kent1Cooper wrote:....
Attached is my approach, DimPolyInside.lsp with its DPI command....
Then I thought about it a little and decided to make a combined file [attached DimPoly.lsp] that defines both DPI [for Inside] and DPO [for Outside] commands. So if, in something that doesn't have a clear inside and outside, the command you try doesn't put the dimensions on the side you want, you can just undo it and use the other command, rather than needing to reverse the Polyline.
Kent Cooper, AIA 
@Anonymous wrote:
Hello,
Thanks for the file. I tried this routine on a simple closed orthogonal polyline. It did place the dimensions on the inside but only dimensioned the horizontal segments and instead of lengths, all the dimensions were "_.dimaligned". Do I maybe have something wrong somewhere?
Very odd -- it was working in my testing situation as I wrote it. Seeing your message, I got into another drawing, and it worked on some, but not all, Polylines, and where it didn't work, it wasn't the same problem you got. Then I just rotated one that it hadn't worked on, and it did work on it in the changed orientation. If I can figure out the issue, I'll be back....
Kent Cooper, AIA
@Kent1Cooper wrote:
Very odd -- it was working in my testing situation as I wrote it. Seeing your message, I got into another drawing, and it worked on some, but not all, Polylines, and where it didn't work, it wasn't the same problem you got. Then I just rotated one that it hadn't worked on, and it did work on it in the changed orientation. If I can figure out the issue, I'll be back....
I figured out what was causing my error:
....
(setq
pt1 (vlax-curve-getPointAtParam pl inc)
pt2 (vlax-curve-getPointAtParam pl (- inc 0.5)); segment midpoint
pt3 (vlax-curve-getPointAtParam pl (1- inc))
;| originally had:
); setq
(if (equal (angle pt1 pt2) (angle pt2 pt3) 1e-8); line segment
But on segment running in zero-degree direction, can sometimes get something like:
(angle pt1 pt2) = 0.0
(angle pt2 pt3) = 6.28319
but the latter is not EXACTLY (* pi 2) -- difference shows up at 15th decimal place!
So:
|;
ang1 (angle pt1 pt2)
ang2 (angle pt2 pt3)
); setq
(if
(or ; line segment
(equal ang1 ang2 1e-8); any non-0 direction or both reading as 0
(and (equal ang1 0 1e-8) (equal ang2 (* pi 2) 1e-8)); condition described above
(and (equal ang1 (* pi 2) 1e-8) (equal ang2 0 1e-8)); opposite relationship
); or
(command "_.dimaligned" ....
That substitution fixed my problem, though I admit I doubt it will fix yours. I'll keep trying to think of what your trouble could be.
Kent Cooper, AIA
@Kent1Cooper wrote:
....That substitution fixed my problem, though I admit I doubt it will fix yours. I'll keep trying to think of what your trouble could be.
When I thought about it some more, I wondered whether it might fix your problem. Yours is causing a text override on what should be linear Dimensions, But the only thing in the routine that would cause a text override should be if it's doing an arc-segment Dimension, and somehow it's bypassing inappropriate inputs until it gets back around to the next (command) function that feeds in text, and that's the Dimaligned command name for what should be the next segment. That ought to be the reason it's only doing every other segment. So I suspect it's interpreting a line segment as an arc, and I can't think of a way that it could except for the same problem I was having, even if it's manifesting itself differently [that may be version-dependent].
The attached update includes that provision for the halves of a zero-degree-direction segment being read as 0 and 2 pi instead of both as 0, and also has some other adjustments -- avoidance of coincident vertices that caused trouble in the previous version, and stacking of fractions [if used] in arc-segment dimensions to match those in line-segment dimensions.
If that doesn't fix your problem, the next thing I would suggest is to change the fuzz factor in the (equal) functions to something a little cruder than 1e-8, say maybe 1e-6.
Kent Cooper, AIA
@arsafe04 wrote:
hi kent you've got a great routine, could you please include an option to select multiple polylines. when dimensioning arcs four decimal places me, can be round two Thank you
For multiple Polylines, I may get back to that later -- I'm on my way out the door, but quickly....
For the decimal places, as described at the top of the file, it uses your current Dimension and Units settings. You can change those to get your two decimal places. But if you have some reason not to change them, replace this line:
;; [include mode/precision here if current dimension style's settings not desired]
with this:
2 2 ;; <---EDIT mode/precision as desired
[that's decimal mode, to 2 decimal places].
Kent Cooper, AIA
@caruga1 wrote:
Kent1Cooper thank you for this usefull lisp!
It would be great if you could make it work with more polylines at the same time,
Thank You!
With two such requests now [also @arsafe04 earlier, if they're still watching], I finally got around to adjusting it for that. I also made its *error* handler viable for newer versions of AutoCAD, and tweaked various other little things. Remember to EDIT the Dimensioning Layer name and color to suit your standards.
Kent Cooper, AIA
@Kyle.Pederson wrote:
I get an error that says a description was not provided? I'm wanting to use this on a layer called "Dimensions" for the color i'm wanting it to use whatever color the layer calls for.
Since the code contains nothing about a Description, I would have to assume there's something about the way you edited the Layer-making/setting line that's not right. Post that part of your version.
Kent Cooper, AIA
@Kyle.Pederson wrote:
....
(command "_.layer" "_make" "Dimensions" "_color" BYLAYER "" "");; <---EDIT Layer name/color as desired
How would I add this into a Toolbar Button?
You can't assign BYLAYER [or BYBLOCK] as the color of a Layer, only as the color of an object. [And even then, it needs to be in quotation marks -- "BYLAYER".] If you don't use the Color option at all in making a Layer, it will be color 7 [white/black]. If you don't want that, you need to give it a number [or a color name, such as "red"].
Read up about the CUI command to Customize the User Interface by adding a Toolbar button with it.
Kent Cooper, AIA
@Kyle.Pederson wrote:
....So I Have a Layer Called "Dimensions" with a Color of 144. So my code should look like:
(command "_.layer" "_make" "Dimensions" "_color" 144 "" "");; <---EDIT Layer name/color as desired
That doesn't seem to work either.....
What are the "" "" at the end of the code doing?
It works for me, used in isolation. Something else must be going on....
In AutoLisp code, "" [an empty text string, i.e. two double-quotes with nothing between them] is used for Enter. This is duplicating a command-line Layer command, using Enter to accept default values as you would from the keyboard. The first one is assigning the specified color to the offered-default current Layer, and the second one is ending the Layer command. The Make option in the Layer command creates the Layer if it doesn't exist [and is not bothered at all if it does already] and sets it current in the process [as opposed to the New option, which does not], so by the time the color assignment comes along, it's the default offered for the Layer to which to give that color, which means you don't need to spell out the Layer name again for that assignment.
If you can be certain that the Layer will always already exist, you can just use the "_set" option, and forget the color assignment:
(command "_.layer" "_set" "Dimensions" "")
But I always use Make for such things, so I don't have to care whether the Layer in question exists, or maybe did once but has been Purged.
[The semicolons and what follows at the end are just commentary -- everything from any semicolon onward is ignored, so you can dump that part.]
Kent Cooper, AIA
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