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Terrinelson1406
Participant
September 21, 2019
Question

Ruler always measures in pixels

  • September 21, 2019
  • 4 replies
  • 1850 views

I’m new to PS.  

My ruler is set to inches, but when I use it, it measures in pixels:/.  I have spent hours on this.   Please help.  

This topic has been closed for replies.

4 replies

davescm
Community Expert
davescmCommunity Expert
Community Expert
September 21, 2019

Hi

The ruler tool in image analysis is for taking scale measures from objects in photographs. First you set the scale in Image >Analysis >Set measurement scale using a known object. So for example I have set it below to use 60 pixels to represent 1 metre.

Then you use the ruler tool to measure other objects, checking use measurement scale in the options bar,  and it will convert from pixels to real world measurements using that scale and display the measurement next to L1 (i.e.logical 1).

 

The ruler setting in Preferences is different. It sets the units for the rule scale at the top and side of the screen when you switch on View >Rulers.

 

Dave

 

 

    gener7
    Community Expert
    gener7Community Expert
    Community Expert
    September 21, 2019

    If that still does not work, go into Edit > Preferences > Units and Rulers and choose Inches for the default.

    gener7
    Community Expert
    gener7Community Expert
    Community Expert
    September 21, 2019

    True. Pixels are the default screen units.

     

    Use Ctrl/Cmd r to bring up the onscreen rulers. Right-click inside that ruler to choose inches. Tell me if that helps.

     

    gener7
    Community Expert
    gener7Community Expert
    Community Expert
    September 21, 2019

    If by that you mean using any tool that displays a measurement, go into the Info Panel and be sure your units are set to inches. Tool units are set independent of ruler units.  Window > Info to show this panel.

     

     

    I can't see the screenshot I posted in my reply, so if you don't, right-click on the cross-hair to the left of the units to bring up the units selection menu.

    I've made the screenshot an attachment you can download.

    T
    Terrinelson1406Author
    Participant
    September 21, 2019

    I hoped that would work.  But it’s still in pixels.  I’m I wrong. L1: 1357.71 is pixel not inches? Right?

     

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