Solution
This is because LabVIEW provides bitmap-based graphics. Bitmap images are stored as a series of tiny dots called pixels. Each pixel is actually a very small square that is assigned a color, and then arranged in a pattern to form the image.
When a bitmap image is scaled up, you begin to see the individual pixels that make up the image. This is most noticeable in the edges of the image. There are ways of making these jagged edges less noticeable, but this often results in making the image blurry as well
Vector images are also more scalable than bitmap images. Vector images are not based on pixel patterns, but instead use mathematical formulas to draw lines and curves that can be combined to create an image from geometric objects such as circles and polygons.
When a vector image is scaled up, the image is redrawn using the mathematical formula, so the resulting image is just as smooth as the original.
On high-resolution displays, Windows uses DPI scaling to make apps readable. If an app isn’t DPI-aware, Windows scales it using bitmap stretching, which causes blurry fonts. By enabling “Override high DPI scaling behavior” and selecting System (Enhanced), Windows re-renders text and UI elements for better clarity instead of just stretching the image.
To change the high-DPI, follow this path: C:\Program Files (x86)\National Instruments\IOTrace\.
- Find the NI IO Trace.exe file,
- Right-click and enter to properties
- Go to the Compatibility section
- Find the Change High DPI settings button
- In the opened window, find Override high DPI scaling behavior. Scaling performed by: and check the option, then select System and press ok, then Apply.
