circular-mirror v1.0.0
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:
- Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
- For bug reports and feature requests, open issues. :bug:
- 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.
Return
line(x1, y1, x2, y2, w, color)
Draws a line on the canvas.
Params
- Number
x1
: The sourcex
value. - Number
y1
: The sourcey
value. - Number
x2
: The targetx
value. - Number
y2
: The targety
value. - Number
w
: The line width. - String
color
: The color.
Return
canvasArrow(context, fromx, fromy, tox, toy)
Draws an arrow on the canvas.
Params
- Object
context
: The canvas context. - Number
fromx
: The sourcex
value. - Number
fromy
: The sourcey
value. - Number
tox
: The targetx
value. - Number
toy
: The targety
value.
Return
init()
This function is called to reinit the canvas.
Return
draw()
Starts drawing the things.
Return
handlers()
This function appends the DOM handlers.
Return
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
- String An error (string) or
null
.
showError(message)
Shows an error message.
Params
- String
message
: The error message.
Return
start(point, callback)
Draws the lines on the canvas.
Params
- Point
point
: The current point. - Function
callback
: The callback function.
Return
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
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:scroll: License
4 years ago