๐ฉโ๐จ Generate a harmonographs X and Y coordinates
npm install @harmonograph/xyThe harmonograph is a mechanical apparatus that uses pendulums to create a geometric image. This function uses the drawing time, size and pendulums to create X and Y coordinates for a harmonograph.
If you wish to draw the harmonograph for use on a website you can use @harmonograph/svg.
const generateHarmonographXY = require('@harmonograph/xy');
const harmonograph = generateHarmonographXY(
150,
700,
[{
amplitude: 200, frequency: 2.985, phase: 2.054, damping: 0.001
},
{
amplitude: 200, frequency: 3.006, phase: 1.820, damping: 0.008
},
{
amplitude: 200, frequency: 3.003, phase: 2.283, damping: 0.001
},
{
amplitude: 200, frequency: 1.994, phase: 1.155, damping: 0.001
}]
);This returns an object containing an array of X and Y coordinates. When drawn these points create a harmonograph.
{
x: [1, 2, 3],
y: [1, 3, 9]
}const generateHarmonographXY = require('@harmonograph/xy');
const {randomPendulums} = require('@harmonograph/xy');
const harmonograph = generateHarmonographXY(150, 700, randomPendulums());| Option | Description | Default value | Type |
|---|---|---|---|
| drawingTime | How long the pendulum swings in seconds | 150 |
number |
| size | The size of the svg | 700 |
number |
| pendulums | Two pendulums require four items ( x, y and x, y ). Each X and Y value is an object that contains amplitude, frequency, phase, and damping ( see pendulum options below ) | random values |
array |
| Parameter | Description | Default value | Type |
|---|---|---|---|
| pendulum.amplitude | How far a pendulum swings back and forth, must be from 0 - 360 degrees |
random number |
number |
| pendulum.frequency | How fast a pendulum swings back and forth, for best results use decimal values around 2 and 3 |
random number |
number |
| pendulum.phase | The rate that a pendulum loses its energy, or slows down, must be from 0 to ฯ |
random number |
number |
| pendulum.damping | The offset from the normal starting position of a pendulum, must be from 0 to 0.01 |
random number |
number |
- v0.0.0 - ๐ฅ Initial version
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