Final answer:
To perform hit-testing with a Line Segment, one must check if a point is on or near the line using several steps involving mathematical calculations and vector operations.
Step-by-step explanation:
To perform hit-testing with a Line Segment, one typically needs to create a function or algorithm that determines whether a given point lies on or near the line segment defined by two endpoints. This problem can be approached from a computational geometry standpoint and involves a few mathematical calculations.
The basic idea is to check if the distance from the point to the line segment is within a certain tolerance. If the point is within this tolerance, it is considered a 'hit'. The steps to achieve this are as follows:
- Calculate the distances from the point to both endpoints of the line segment.
- Check if the point lies within the bounds of the line segment's rectangle (created by projecting the endpoints onto the x and y axes).
- Find the projection of the point onto the line extending the line segment and check if it lies within the line segment.
- Calculate the perpendicular distance from the point to the line segment.
- Decide if this distance is less than the chosen tolerance for hit-testing.
Each of these steps involves several more detailed computations, such as vector operations and potentially solving simultaneous equations.