Parallax Errors

Ray Tuck

Parallex Errors

This simulates the effects of parallax when measuring length.
  • The blue dot represents the position of the observers eye. Its position may be adjusted using the Eye position slider.
  • The Green bar is the object being measured - adjust its true length using the object length slider.
  • The Object position slider adjusts the separation between the object and the scale.
  • Check Show perpendicular to show the ideal sight line at right angles to the rule.
  • Check Show error angle to show the deviation of a sight line from the perpendicular