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Measurement Error?
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* April 22, 2019, 03:32:18 PM
I'm getting what appears to me a measurement error in a complicated drawing.  I've copied the components in question to another drawing and the error persists.

1.  Draw a line 3'5"
2.  Make a copy with the parallel tool and turn it into 3d plank the same length.
3.  Check that the 3d item is the same length as the line from various views.
4.  Use the dimension tool to show the length of both items. Use the ANSI standard.
      Both show the correct dimension.
5.  Change the dimension property to Stack Fraction.
      The 3d shape now shows the length at 3'4" while the line remains at 3.5"

HUH???

Project file for Mac Deluxe 10 attached.

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* April 22, 2019, 03:42:50 PM
#1
Hi.  Whilst a few on this forum may use a mac as well as Windows.  You may get a quicker reply by posting on the separate TC Mac Forum.  The Windows version of TC is completely different from the mac version I believe.

TC Mac forum.

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* April 22, 2019, 03:49:43 PM
#2
Thanks.  Didn't know it was a separate forum.

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April 22, 2019, 06:17:20 PM
#3
I am unable to open your file, but I have had measurement errors from time to time that were my fault.  I didn't zoom in close enough to snap to the desired feature.  In some cases, I even snapped to the end of another Dimension marker.

Another thing to consider is the number of significant figures you are working with.  The Windows TurboCAD, the default is 6, but you can change that to 10 (and most people do).


Jeff

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


* April 23, 2019, 07:06:51 AM
#4
Thanks Jeff.  I have the number of significant digits at the maximum.  In the example I uploaded, changing the 3d object is drawn to 3'5" and the dimension tool shows it at that length.  When I change the type of measurement from ANSI to Stacked Fraction, the lenght shown changes to 3'4".  The object has not changed, neither has anythign else, just the length shown.  Presumably, that cannot be a result of zooming, digits, etc. 

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* April 23, 2019, 03:35:50 PM
#5
I use SharkCAD, same code base as TC Mac, as well as TC PC.  I changed your file's attachment to VC3, one of the PunchCAD format attachments, and it opens in SharkCAD.  The pic shows that line, 3D object, and the dimensions are on different planes.   I don't know what your versions features are, or how you created this.   

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April 23, 2019, 04:17:15 PM
#6
I use SharkCAD, same code base as TC Mac, as well as TC PC.

Certainly not an expert, but this does not agree with what I have read elsewhere.  If TurboCAD Windows has the same base code as TurboCAD Mac, then why can't they read the same file formats?


Jeff

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TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1


* April 23, 2019, 04:22:29 PM
#7
My bad Jeff, I misexplained, to coerce a politicians' excuse.  I meant that I use TC PC and SharkCAD, not that they use the same code.

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* April 23, 2019, 05:05:01 PM
#8
Just to be clear,  I am not claiming the two object are:

1) on the same plane,
2) the same length
3) have any other relationship,

or anything else about them, except this:. 

1) The length of the 3D object shows as 3'5" when using ANSI format and 3'4" when using Stacked Fraction format. 
2) The simple line shows as 3'5" with both display format. 

THAT is what makes no sense.  Why would the type of display show two different sizes depending on the FORMAT of the display.

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* April 23, 2019, 08:09:45 PM
#9
I set program tolerances in preferences at 1/128, closed and it reopened the file, the dimension reads 3'5" for me as DIN and stacked fractions.   That's all I've got.     

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* April 23, 2019, 08:19:41 PM
#10
Murray, are you using a PC version?

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* April 23, 2019, 08:21:36 PM
#11
Yes, I am.  PC version of SharkCAD, that is. 
« Last Edit: April 23, 2019, 08:25:55 PM by murray dickinson »

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