circular-mirror

Simulates the reflections of a ray of light inside of a circular mirror.

:question: Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
2. For bug reports and feature requests, open issues. :bug:
3. For direct and quick help, you can use Codementor. :rocket:

:memo: Documentation

round(num, decimals)

Rounds a number.

Params

• Number num: The input number.
• Number decimals: How many decimals.

Return

• Number The rounded number.

setVariableInterval(callbackFunc, timing)

Sets a variable interval.

Params

• Function callbackFunc: The callback function.
• Number timing: The interval value.

Return

• Object The object containing the variable interval methods.

circle(x, y, r, w, color)

Draws a circle on the canvas.

Params

• Number x: The x value.
• Number y: The y value.
• Number r: The radius value.
• Number w: The line width.
• String color: The color.

line(x1, y1, x2, y2, w, color)

Draws a line on the canvas.

Params

• Number x1: The source x value.
• Number y1: The source y value.
• Number x2: The target x value.
• Number y2: The target y value.
• Number w: The line width.
• String color: The color.

canvasArrow(context, fromx, fromy, tox, toy)

Draws an arrow on the canvas.

Params

• Object context: The canvas context.
• Number fromx: The source x value.
• Number fromy: The source y value.
• Number tox: The target x value.
• Number toy: The target y value.

init()

This function is called to reinit the canvas.

draw()

Starts drawing the things.

handlers()

This function appends the DOM handlers.

getLimit(angle)

This is a hack. This roundes the angle in a format that is supported by the application.

Params

• Number angle: The angle that should be rounded.

Return

• Number A rounded angle that is supported by the application.

badAngle(angle)

Checks if the angle is supported.

Params

• Number angle: The angle that should be checked.

Return

• null|String An error (string) or null.

showError(message)

Shows an error message.

Params

• String message: The error message.

start(point, callback)

Draws the lines on the canvas.

Params

• Point point: The current point.
• Function callback: The callback function.

M(A:, B:, R:, L:)

THE MOST IMPORTANT FUNCTION. It always returns the next point. ------------ (xM(n - 1), yM(n - 1)) ---> |? ? ?| (xM(n), yM(n)) ---> | M | ---> (xM(n + 1), yM(n + 1)) Radius ---> |? ? ?| Length of segments ---> ------------

Params

• Object A:: first point
• Object B:: second point
• Object R:: radius of big circle
• Object L:: length of segments

firstPoint(m, x1, y1)

The function that returns ONLY the first point.

Params

• Object m:
• Object x1:
• Object y1:

getA()

Function that returns a point giving the angle |------| xA ----> | |===> (xA, yA) angle (deg) ----> | | |------|

check()

Verify if the numbers are correct. If not, return an false value.

:yum: How to contribute

Have an idea? Found a bug? See how to contribute.

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:scroll: License

MIT © Ionică Bizău