The this.update method within the THREE.OrbitControl script contains a private variable called EPS, which is used to adjust the phi angle. The following code snippet demonstrates how it restricts phi to be between EPS and PI-EPS:
// restrict phi to be between EPS and PI-EPS
phi = Math.max( EPS, Math.min( Math.PI - EPS, phi ) );
What does EPS stand for? Is it an acronym for something?
EPS, in this context, stands for the letter epsilon from the Greek alphabet, typically employed in mathematics to signify a small numerical value.
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