Author Topic: Revolve WONT  (Read 10535 times)

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mjfarrell

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Re: Revolve WONT
« Reply #15 on: February 03, 2010, 07:31:17 PM »
nopeth....

Quote

Command: _revolve

Current wire frame density:  ISOLINES=4
Select objects: 1 found

Select objects:
Unable to revolve the selected object.
 

it even pauses and lies to me, saying that it is loading the modeler.DLLs

and then it doesn't model :cry:
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Michael Farrell
http://primeservicesglobal.com/

t-bear

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Re: Revolve WONT
« Reply #16 on: February 04, 2010, 01:32:13 PM »
Well...........I'm stumped!  I've tried lines, arcs,plines...everything works here.  Sorry I can't give you some insight at least! :|

mjfarrell

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Re: Revolve WONT
« Reply #17 on: February 04, 2010, 01:41:55 PM »
no worries...it's an oddity for sure, I've even un installed, and .... to no effect

although I didn't do the entire "Clean Installation" procedure...so it could STILL be my fault that autocad is broken   :wink:
Be your Best


Michael Farrell
http://primeservicesglobal.com/

donnyvz

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Re: Revolve WONT
« Reply #18 on: December 17, 2010, 10:14:41 AM »
REVOLVE will not work on a line because the resulting entity would not be a solid.
REVOLVE is a solids command.
REVSURF will work on a line because the resulting entity would be a 3dface.
REVSURF is a face command.

or something like that.

JCTER

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Re: Revolve WONT
« Reply #19 on: December 17, 2010, 10:35:56 AM »
REVOLVE will not work on a line because the resulting entity would not be a solid.
REVOLVE is a solids command.
REVSURF will work on a line because the resulting entity would be a 3dface.
REVSURF is a face command.

or something like that.
not correct.

REVOLVE is not a solids-ONLY command.  It also can be used to create surfaces.  I just did it, to double check myself, in 2010.  However, I do not know how far back that truth goes.  However, even the object type belies this fact:
Code: [Select]
Command: li LIST 1 found

                  [b]REVOLVEDSURFACE  [/b]Layer: "0"
                            Space: Model space
                   Handle = 2f757
                   U-isolines = 6,
                   V-isolines = 6,
   Bounding Box: Lower Bound X = -1081.88143, Y = 1381.62547, Z = -45.64769
                 Upper Bound X = -990.58604, Y = 1458.51032, Z = 45.64769
      Start angle: 0d
Angle of revolution: 360d
 Direction vector: X = 0.00000   Y = -1.00000  Z = 0.00000
In the Properties palette it's listed as "Surface(Revolved)"

donnyvz

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Re: Revolve WONT
« Reply #20 on: December 17, 2010, 11:15:52 AM »
Half agree, I'm half correct.
REVOLVE used to be a solids-ONLY command.

I'm currently using AutoCAD 2006.
According to the HELP file:
"You can revolve closed polylines, polygons, circles, ellipses, closed splines, donuts, and regions."
The REVOLVE command in 2006 will not work with a simple line.
I get the *Unable to revolve the selected object.*

I just tried the same thing in AutoCAD 2009, 2010 and 2011 (yeah, multiple versions in the same office = oh joy) and you are correct, the *new* REVOLVE command will create a mesh / face from a line.

I don't know when this was changed but I'm guessing it was introduced with AutoCAD 2009.

Higgs: what version of AutoCAD are you using?

Wondering if there's more going on here than meets the eye, like is AutoCAD 2009 and later recognizing the line and invisibly *changing* the command to REVSURF?

In AutoCAD 2006, using REVSURF on a line and doing a LIST on the resulting entity gives:

Command: list

Select objects: 1 found

Select objects:
                  POLYLINE  Layer: "0"
                            Space: Model space
                   Handle = 1508d
                   7x7 mesh

                  VERTEX    Layer: "0"
                            Space: Model space
                   Handle = 1508e
              Mesh
                at point, X=20361.256  Y=18946.329  Z=    0.000

                  VERTEX    Layer: "0"
                            Space: Model space
                   Handle = 1508f
              Mesh
                at point, X=20254.442  Y=18946.329  Z=    0.000

etc., etc., bunch of vertices and meshes, not a REVOLVEDSURFACE like James Cannon got.

I'm stumped, for now.


*EDIT - Properties box shows the REVSURF'ed line to be a Polygon Mesh.
« Last Edit: December 17, 2010, 11:21:58 AM by donnyvz »

JCTER

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Re: Revolve WONT
« Reply #21 on: December 17, 2010, 11:21:43 AM »
Well there we go.  I guess using the command enough in the past couple years erased my memory of when I couldn't. lol