[SOLVED] Ruler measurement error

I have a architectural mode drawing where the ruler measurement give conflicting results.

My menu selection is:
Ruler / point to point / on entity.


the shorter distance is measuring 3 1/4" (correct)
a parallel line which should be further away is measuring 2’ 11 11/16 (way wrong)
I have the grid at 1/8 inch (if it matters).

BTW the rectangle , triangle and circle were to be used in a description then I decided screenshots were better.


John














Versions
QCAD version: 3.25.2.0
Date: Sep 4 2020
Qt version: 5.13.2
Compiler version: MSVC++ 14.0 (2015)
Build date: Sep 4 2020
Revision: 4a61501492c20734be6975d8e22c78667e7898af

Architecture: x86_64
Device pixel ratio: 1
OS: Windows
OS version: 10

Locale
QCAD locale: en
Name: en_US
Country: 225
Country name: United States
Language: 31
Language name: English
Script: 0
Script name: Default
Decimal point: 46
Negative sign: 45
Positive sign: 43
Text direction: 0
System codec: System
Measurement Error.dxf (150 KB)

Hi,

The very left vertical line has 3D information (Y). QCAD is a 2D application and not capable to handle 3D.

To get rid of the 3D information try Menu / Misc / Modify / Flatten drawing to 2D and try again … :wink:

Thank you :slight_smile:

That leads to two questions:

  1. How might 3d information have been created? I imported the partially complete drawing from AudoCad Lite I think R12

  2. Is there a way to tell if there is Z axis info?

John

  1. Yes, most of the time the drawing was used and saved in a 3D program. dxf version like R12 shouldn’t matter …
  2. The QCAD property editor provides an option to show 3D values for Y. To find those entities it is like searching for a needle in a haystack … :frowning: