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receiver tab with interactive curves

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special thanks to englishman for the math magic involved
This commit is contained in:
cTn 2013-09-25 20:57:21 +02:00
parent 3f8dd081cb
commit 89ca55a3da
4 changed files with 79 additions and 23 deletions
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47
tabs/receiver.js
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@ -56,6 +56,53 @@ function tab_initialize_receiver() {
$('a.update').addClass('active');
});
// curves
$('.tunings .throttle input').change(function() {
var mid = parseFloat($('.tunings .throttle input[name="mid"]').val());
var expo = parseFloat($('.tunings .throttle input[name="expo"]').val());
var throttle_curve = document.getElementById("throttle_curve_c");
var context = throttle_curve.getContext("2d");
context.clearRect(0, 0, 220, 58);
// math magic by englishman
var midx = 220 * mid;
var midxl = midx * .5;
var midxr = (((220 - midx) * .5) + midx);
var midy = 58 - (midx * (58 / 220));
var midyl = 58 - ((58 - midy) * .5 *(expo + 1));
var midyr = (midy / 2) * (expo + 1);
context.beginPath();
context.moveTo(0, 58);
context.quadraticCurveTo(midxl, midyl, midx, midy);
context.moveTo(midx, midy);
context.quadraticCurveTo(midxr, midyr, 220, 0);
context.lineWidth = 2;
context.stroke();
});
$('.tunings .throttle input').trigger('change'); // initial software trigger
$('.tunings .rate input').change(function() {
var rate = parseFloat($('.tunings .rate input[name="rate"]').val());
var expo = parseFloat($('.tunings .rate input[name="expo"]').val());
var pitch_roll_curve = document.getElementById("pitch_roll_curve_c");
var context = pitch_roll_curve.getContext("2d");
context.clearRect(0, 0, 220, 58);
// math magic by englishman
var ratey = 58 * rate;
context.beginPath();
context.moveTo(0, 58);
context.quadraticCurveTo(110, 58 - ((ratey / 2) * (1 - expo)), 220, 58 - ratey);
context.lineWidth = 2;
context.stroke();
});
$('.tunings .rate input').trigger('change'); // initial software trigger
$('a.update').click(function() {
if ($(this).hasClass('active')) {
// catch RC_tuning changes