Ruler - Scale Ruler 4.4

The Scale Ruler application serves as a straightforward tool for displaying measurements across various units. However, users should be aware of the following limitations:

• The precision of the displayed scales cannot be guaranteed.
• Calibration and PPI (pixels per inch) values will revert to default settings when the model is modified.
• It is advisable to set the PPI value only when the model has not been determined.
• After altering the PPI value, it is essential to recalibrate the application.

How to Use:

Select Mode:

In an UNLOCKED state, users can choose their desired measurement unit, magnification ratio, and reduced scale, which will then be displayed on the ruler.

Free Mode:

In UNLOCK mode, dragging the screen allows the user to set a scale ranging from 1:1 to 1:100. Holding down the scale value opens a keyboard for manual entry of scale measurements. Users also have the option to lock the scale using a toggle switch. Note that advertisements may appear during the unlocking process, which will cease after making an in-app purchase.

Specifications of Scale Ruler:

• Measure Length: meter, inches
• Magnification Ratios: 50%, 70.7%, 100%, 141%, 200%
• Reduced Scale (for meter):
  • 1:100, 1:150, 1:200, 1:250, 1:300, 1:400, 1:500, 1:600
• Reduced Scale (for inch):
  • 1:1, 1:1.5, 1:2, 1:2.5, 1:3, 1:4, 1:5, 1:6
• (Architectural) Reduced Scale for inch:
  • 1:1, 1:2, 1:4, 1:8, 1:12, 1:16, 1:24, 1:32, 1:48, 1:64
  • 1:96, 1:128, 1:192, 1:384
• (Engineering) Reduced Scale for inch:
  • 1:120, 1:240, 1:360, 1:480, 1:600, 1:720
  • 1:800, 1:960, 1:1080

Settings Include:

• Calibration
• PPI (pixels per inch) setting
• In-app purchase to remove ads
• Restoration of in-app purchases

Calibration Process:

The calibration feature allows users to adjust the length of the ruler accurately using a proper measurement tool. The options available include:

• "Calibration" button: Saves the adjusted state and applies the calibration results to the ruler.
• "Reset" button: Resets adjustments back to a specified value without saving them.
• "Initialize" button: Resets adjustments to a specified value while applying the change to the ruler display.

Caution: Calibration values will reset with any changes to the model.

PPI (Pixels per Inch) Setting:

If there is uncertainty regarding the model in use, it is recommended to verify its PPI value prior to setting it within the application. The steps include:

• "OK" button: Saves and updates the entered PPI value on the ruler display.
• "Initialize" button: Resets the PPI value to a predetermined measure and reflects this on the ruler.

Caution: The PPI value will be reset upon changing the model.