parallel-lines v1.0.2

Parallel Lines

This library demonstrates how to draw parallel lines based on a set of given points using JavaScript. The original lines are drawn in blue, and the parallel lines are drawn in red.

Features

• Draws lines connecting specified points.
• Calculates and draws parallel lines at a specified offset.

Getting Started

To run this project locally, follow these steps: To use

npm install parallel-lines

or Clone the repository (or download the files):

git clone https://github.com/ronald-wentworth/parallel-lines.git cd parallel-lines

Available functions

getParallels

1. points: an array of connected x, y coordinates (i.e [{x:0, y:10}, {x:5, y:11} ...)
2. distance: a value representing the distance from the above points that new points should be generated

returns a left(l) and right(r) array of points representing the new parallel lines (i.e {l:{x:0,y:10}...},r:...}

findIntersection

1. line1 an array with 4 elements represeting the from xy coords and the to xy coords for the first line
2. line2 same as 1 except for the second line

returns xy coords where the 2 lines intersect

checkPointPositionDirected

1. x1, y1 point where line starts
2. x2, y2 point where line ends
3. px, py test point

returns which direction the point is relative to the direction of the line 1 left, -1 right, 0 on line