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Calibrating x & y screen pixel coordinates
Hello,
For several years, I have been using a freeware Windows utility app called Meazure which enables an on-screen ruler, compass, protractor, magnifier, grid and allows you to capture x & y coords and the RGB color at any pixel.
However, since recently upgrading several hardware components* and upgrading my OS to Windows 10, I have not been able to get it calibrated.
For example, Fig. 1 below shows the Meazure utility window (center) with the calibration box on the left. As can be seen on the right, the Windows display is set at 100%. In this case, the calibration was straightforward and accurate.
Fig. 2 shows the same items but in this case, the Windows display is set at 200%. When this is the case, I cannot determine how to calibrate Meazure so that it returns the correct coordinates.
By the way, the monitor is 28" (24.40" x 13.73") and has a resolution of 3840 x 2160.
I have pasted the contents and a screenshot of the Meazure documentation page explaining calibration methods and options below (Fig. 3)
I would sure appreciate it if someone could help me determine what I may be overlooking or doing wrong.
Thanks
*New hardware
• EVGA Supernova G2 750W 220-G2-0750-XR Fully Modular Power Supply
• ASUS PRIME Z270-K LGA1151 DDR4 HDMI DVI VGA M.2 Z270 ATX Motherboard with USB 3.1
• Intel 7th Gen Intel Core Desktop Processor i7-7700K (BX80677I77700K)
• Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2400 MT/s (PC4-19200)
• Samsung 850 EVO 1TB 2.5-Inch SATA III Internal SSD (MZ-75E1T0B/AM)
Existing hardware
• NVIDIA GeForce GTX 960 [Display adapter]
• Acer B286HK [Monitor] (27.8"vis, s/n ETT1JAA0015060D1DF4200)
__________________________ __________ __________ _______
(See below for a screenshot of the help file page containing the following information.)
Meazure obtains position information from the computer operating system. This information is reported to Meazure in pixel units. To display measurements in units other than pixels, Meazure must convert from pixels using the screen resolution. By default, Meazure uses the screen resolution reported by the operating system. However, this value is inaccurate because it does not reflect the physical dimensions of your display screen(s). Meazure allows you manually determine an accurate resolution for each display screen connected to your system. It is highly recommended that you calibrate Meazure the first time you use it and anytime you change a screen’s pixel dimensions (e.g. going from 1024 by 768 to 1280 by 1024 pixels).
To access the resolution calibration panel select the Preferences item on the Edit menu then select the Calibration tab on the Preferences dialog.
The resolution calibration panel displays the calibration state for the screen on which it is displayed. In a multiple screen environment, the calibration panel must be dragged to the screen whose resolution is to be calibrated. The identification of the screen is displayed with the title of the calibration panel frame.
The resolution calibration panel allows you to select whether to use the operating system values for the horizontal and vertical screen resolutions or to use a manual setting of these values. It is highly recommended that you select the manual setting. Before describing the calibration process, the following terms need to be defined:
Screen Resolution - The resolution is the number of pixels per inch or centimeter along the screen. The screen can have a different resolution in the horizontal and vertical directions (e.g. 90 pixels/inch by 96 pixels/inch).
Screen Size - The size of the screen is the number of pixels in the horizontal and vertical directions (e.g. 1280 by 1024 pixels).
Screen Dimensions - The screen dimensions are the length in inches or centimeters in the horizontal and vertical directions (e.g. 13 inches by 10 inches).
There are three methods for manually setting the screen resolution: direct resolution entry, direct dimension entry, or slider calibration. To use any of these methods select "Set manually". The resolution can be calibrated using either English or Metric units. Use the inch and centimeter radio buttons to select the units to use for calibration. This selection affects only the calibration units and does not change the measurement units.
Direct resolution entry - If you know the exact screen resolution, use this method to directly enter the horizontal and vertical values using the "Rx" and "Ry" text fields. Resolution values must be specified in pixels per inch or pixels per centimeter depending on the calibration units selected.
Direct dimension entry - Using a ruler, you can measure the horizontal and vertical dimensions of the screen. You can then enter these dimension values using the "W" and "H" text fields. The dimension values must be specified in inches or centimeters depending on the calibration units selected.
Slider measurement - This method uses a ruler in conjunction with the horizontal and vertical sliders on the panel to set the resolution. Place a ruler on the screen and align it with the zero position on one of the sliders. If resolution calibration is being performed in inches, move the slider until it points to the one inch mark on the ruler. For metric calibration, move the slider until is points to the two centimeter mark on the ruler. Repeat this process for the remaining slider.
Screen information Note that when the operating system resolution is used, a warning button appears on the Screen Information section of the program display. Pressing this button displays the resolution calibration panel.
See Also
Preferences, Measurement Units, Screen Information Section, Multiple Screen Support, Custom Units
For several years, I have been using a freeware Windows utility app called Meazure which enables an on-screen ruler, compass, protractor, magnifier, grid and allows you to capture x & y coords and the RGB color at any pixel.
However, since recently upgrading several hardware components* and upgrading my OS to Windows 10, I have not been able to get it calibrated.
For example, Fig. 1 below shows the Meazure utility window (center) with the calibration box on the left. As can be seen on the right, the Windows display is set at 100%. In this case, the calibration was straightforward and accurate.
Fig. 2 shows the same items but in this case, the Windows display is set at 200%. When this is the case, I cannot determine how to calibrate Meazure so that it returns the correct coordinates.
By the way, the monitor is 28" (24.40" x 13.73") and has a resolution of 3840 x 2160.
I have pasted the contents and a screenshot of the Meazure documentation page explaining calibration methods and options below (Fig. 3)
I would sure appreciate it if someone could help me determine what I may be overlooking or doing wrong.
Thanks
*New hardware
• EVGA Supernova G2 750W 220-G2-0750-XR Fully Modular Power Supply
• ASUS PRIME Z270-K LGA1151 DDR4 HDMI DVI VGA M.2 Z270 ATX Motherboard with USB 3.1
• Intel 7th Gen Intel Core Desktop Processor i7-7700K (BX80677I77700K)
• Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2400 MT/s (PC4-19200)
• Samsung 850 EVO 1TB 2.5-Inch SATA III Internal SSD (MZ-75E1T0B/AM)
Existing hardware
• NVIDIA GeForce GTX 960 [Display adapter]
• Acer B286HK [Monitor] (27.8"vis, s/n ETT1JAA0015060D1DF4200)
__________________________
(See below for a screenshot of the help file page containing the following information.)
Meazure obtains position information from the computer operating system. This information is reported to Meazure in pixel units. To display measurements in units other than pixels, Meazure must convert from pixels using the screen resolution. By default, Meazure uses the screen resolution reported by the operating system. However, this value is inaccurate because it does not reflect the physical dimensions of your display screen(s). Meazure allows you manually determine an accurate resolution for each display screen connected to your system. It is highly recommended that you calibrate Meazure the first time you use it and anytime you change a screen’s pixel dimensions (e.g. going from 1024 by 768 to 1280 by 1024 pixels).
To access the resolution calibration panel select the Preferences item on the Edit menu then select the Calibration tab on the Preferences dialog.
The resolution calibration panel displays the calibration state for the screen on which it is displayed. In a multiple screen environment, the calibration panel must be dragged to the screen whose resolution is to be calibrated. The identification of the screen is displayed with the title of the calibration panel frame.
The resolution calibration panel allows you to select whether to use the operating system values for the horizontal and vertical screen resolutions or to use a manual setting of these values. It is highly recommended that you select the manual setting. Before describing the calibration process, the following terms need to be defined:
Screen Resolution - The resolution is the number of pixels per inch or centimeter along the screen. The screen can have a different resolution in the horizontal and vertical directions (e.g. 90 pixels/inch by 96 pixels/inch).
Screen Size - The size of the screen is the number of pixels in the horizontal and vertical directions (e.g. 1280 by 1024 pixels).
Screen Dimensions - The screen dimensions are the length in inches or centimeters in the horizontal and vertical directions (e.g. 13 inches by 10 inches).
There are three methods for manually setting the screen resolution: direct resolution entry, direct dimension entry, or slider calibration. To use any of these methods select "Set manually". The resolution can be calibrated using either English or Metric units. Use the inch and centimeter radio buttons to select the units to use for calibration. This selection affects only the calibration units and does not change the measurement units.
Direct resolution entry - If you know the exact screen resolution, use this method to directly enter the horizontal and vertical values using the "Rx" and "Ry" text fields. Resolution values must be specified in pixels per inch or pixels per centimeter depending on the calibration units selected.
Direct dimension entry - Using a ruler, you can measure the horizontal and vertical dimensions of the screen. You can then enter these dimension values using the "W" and "H" text fields. The dimension values must be specified in inches or centimeters depending on the calibration units selected.
Slider measurement - This method uses a ruler in conjunction with the horizontal and vertical sliders on the panel to set the resolution. Place a ruler on the screen and align it with the zero position on one of the sliders. If resolution calibration is being performed in inches, move the slider until it points to the one inch mark on the ruler. For metric calibration, move the slider until is points to the two centimeter mark on the ruler. Repeat this process for the remaining slider.
Screen information Note that when the operating system resolution is used, a warning button appears on the Screen Information section of the program display. Pressing this button displays the resolution calibration panel.
See Also
Preferences, Measurement Units, Screen Information Section, Multiple Screen Support, Custom Units
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