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c#byteangle

How to get angles from bytes c#

I have a binary file with vertex normals. The value is coded as byte. How do I encode angle from byte and convert the angle to float? Example:

binary: 128, 128, 255

obviously in angles it's: 90*, 90*, 180*

How do I get a value in float?

Values are obviously 0.5 0.5 1.0 but what's the c# code so I can convert byte from 128 to 0.5f?

Solution

  • byte has a range of [0..255], so if you're mapping it to a [0.0..1.0] range, it's simple math:

    double angle = byteValue / 255.0;

    At that point, you can then multiply by whatever angle system you desire.

    // Degrees
double angleDeg = angle * 360.0;

// Radians
double angleRad = angle * 2.0 * Math.PI;