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Beginners' Questions Measurement tool nowhere near correct
  1. #1
    ksteflik ksteflik @ksteflik

    I'm sure it's something I've done, but I can't for the life of me figure it out...I set my units to inches.  I draw a rectangle, let's say 5" x 10".  I grab the measurement tool to measure any sides of the rectangle, and the measurements aren't close to 5" x 10"; MUCH smaller.  Help!  Thanks in advance!

  2. #2
    Tyler Durden Tyler Durden @TylerDurden

    Please post an example file.

  3. #3
    ksteflik ksteflik @ksteflik

    See attached.  I drew a 3" x 4" rectangle but the measurement tool shows it as 0.64" wide instead of 4"

    4X3 Inch Rectangle
  4. #4
    ksteflik ksteflik @ksteflik

    Figured it out.  I had the scale set wrong (way down) when using the measurement tool.  Not exactly sure how that happened, but all is good now!!!

  5. #5
    MartinA MartinA @MartinA

    I'm having the same problem with the measurement tool. If I set document default to US 8.5 x 11 inches and then use the measurement tool to measure the width of the page I get 8.500 @ 0 degrees but visually it falls 0.1 inches short of the displayed width. I've looked at the manual and can't see any reference to the measurement tool in the index. Did you say there is a scale factor for the measurement tool? Where did you find it?

  6. #6
    Tyler Durden Tyler Durden @TylerDurden
    MartinA

    visually it falls 0.1 inches short of the displayed width

    Can you elaborate?

  7. #7
    MartinA MartinA @MartinA

    If I mark the dimension after measuring as I stated above the line does not extend to width of the page visually. After I wrote that I found the scale setting and it was 100% so it should have matched the width visually. The only way I could get it to match is by reducing the measurement scale to about 98%. But then, I hate to have to fudge things because I've found it usually comes back to bite you somewhere else.

  8. #8
    Tyler Durden Tyler Durden @TylerDurden

    I'm getting bang-on to four decimal points.

  9. #9
    MartinA MartinA @MartinA

    I believe you. I must have something set up wrong but I don't know what it could be. Selected US 11 x 8.5 in, grid lines at 0.1 in (minor) and measurement scale factor at 100% and visually it is short of 8.5 in by 0.1 in. All snaps are turned off and I'm viewing from the end of the left arrow to the end of the right arrow after marking the measurement..

  10. #10
    MartinA MartinA @MartinA

    By the way, I have also confirmed this by importing an object created in another program of known length and width and measure is off in that case also. I have confirmed the actual object dimensions by printing out the Inkscape image and measuring it with a ruler.

  11. #11
    Tyler Durden Tyler Durden @TylerDurden

    If you can attach an image illustrating the issue, that might help.

  12. #12
    MartinA MartinA @MartinA
    *

    Here is an image.

    Minor scale at 0.1 in, major scale at 1.0 in

    Scale factor for measurement is 100%

    The objects are set on the major gridline

    Measurement(arrow to arrow ends) appear at about 90% of the 1.0 inch distance.

     

    Inkscape
  13. #13
    Tyler Durden Tyler Durden @TylerDurden

    Thanks.

    Can you share a screenshot of where you are setting scale factor for measurement?  I just am trying to find where things are going off track.

  14. #14
    MartinA MartinA @MartinA

    That was revealing. It is accurate right up to the time that I press the arrow button to mark the measurement. Then the marked measurement contracts and falls short of the actual measured length. I noticed the offset was 5. I changed it to 0 before saving and it didn't make any difference.

     

     

    Inkscape2
  15. #15
    Tyler Durden Tyler Durden @TylerDurden
    *

    Ok, I think I see what you are getting at. 

    It is not that the measurement value is incorrect, it is that the dimension-line ("global measure line") arrowheads do not extend to the full length of the measurement. 

    This in not uncommon in drafting. It allows for extension lines. In Inkscape, the measure tool does not automatically create the extensions lines, so it's a bit of a kludge.

    The offset value designates how far away the entire dimension line should be placed from the axis of the measured distance. Set it foe a large number  (eg 20) and see the effect.

  16. #16
    MartinA MartinA @MartinA

    Thanks,

    It's now become a non-problem because it prompted me to do some discovery regarding document properties. I now can accomplish my task of precisely aligning imported objects by using minor and major grid lines, a subject that I was ignorant on.

    Thank you though for your attention. :-)

     

  17. #17
    Tyler Durden Tyler Durden @TylerDurden

    Kudos, then.

    Here is an extended video on the Measure tool:
    https://www.youtube.com/watch?v=OE0cVDGCzbM

  18. #18
    cyounkins cyounkins @cyounkins

    Thank you for Inkscape. I really love it. But the measure line arrowheads not extending the full length of the measurement is pretty frustrating to me. I have to second guess which point is the real end. Extension lines are perpendicular lines at the ends of the measurement? I'd love to see those or the ability to set the measure line to the full length.

  19. #19
    Tyler Durden Tyler Durden @TylerDurden

    Please share a screenshot annotated where you see the issue.

  20. #20
    cyounkins cyounkins @cyounkins

    Here's a screenshot. The big red arrows point to the problem - the measure line arrowheads don't extend the full length of the measurement. The measurement endpoints are indicated by the small circles, and the black arrowheads don't touch the circles. Quick - In the second png, is the measurement to the curve, or to the nearby grid line?

    I believe this is the problem discussed above, to which Tyler Durden said "This in not uncommon in drafting. It allows for extension lines."

    Screenshot 2024 07 01 At 12.07.29 Am
    Screenshot 2024 07 01 At 12.00.09 Am
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