10 Commits
hw6 ... hw7

Author SHA1 Message Date
011e19e531 lab7 added 2026-01-09 19:36:55 +10:00
5d7ecb1f13 math fixed 2026-01-01 15:57:09 +10:00
9fef1e5b0d finishing touches 2026-01-01 15:24:08 +10:00
c09b7b5769 images fixed 2026-01-01 15:05:20 +10:00
cf80fd251e small refactor 2026-01-01 14:37:53 +10:00
46e3696d85 reset bug fixed 2026-01-01 14:17:34 +10:00
9e5950490a values checking added 2026-01-01 14:04:53 +10:00
26bc727758 tooltip for output fields added 2026-01-01 13:52:51 +10:00
04db81b55a math fixed 2025-12-31 22:13:22 +10:00
4ab5967abe basic structure created 2025-12-31 20:42:21 +10:00
7 changed files with 556 additions and 0 deletions

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.desctription-heading{
font-size: medium;
text-align: center;
}
.main-container {
display: flex;
gap: 20px;
align-items: flex-start;
}
.scheme-image{
flex: 1;
max-width: 400px;
height: auto;
object-fit: contain;
}
.controls-container {
display: flex;
flex-direction: column;
gap: 20px;
flex: 1;
min-width: 300px;
max-width: 400px;
}
.inputs{
min-width: 300px;
}
.outputs{
min-width: 300px;
}
.radio-label{
display: inline-block;
}
p{
line-height: 0;
}
.max-w{
width: 100%;
}
.bad-input-tooltip {
display: block;
background: #ffffff;
color: #721c24;
border: 1px solid #8f0c19;
padding: 4px 8px;
max-width: 220px;
white-space: normal;
}
.bad-input-highlight {
outline: 2px solid #990917;
}
.hidden{
display: none;
}
body{
display: flex;
flex-direction: column;
gap: 20px;
}
table {
width: 100%;
border-collapse: collapse;
margin: 16px 0;
}
th, td {
border: 1px solid #ccc;
text-align: left;
}
th {
background-color: #f5f5f5;
font-weight: bold;
}
tr:nth-child(even) {
background-color: #fafafa;
}
@media (max-width: 800px) {
.main-container {
flex-direction: column;
align-items: center;
}
.scheme-image {
max-width: 100%;
width: 100%;
}
.controls-container {
width: 100%;
max-width: none;
}
.inputs, .outputs {
min-width: unset;
width: 100%;
}
}

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<html>
<head>
<title>калькулятор равнобедренного треугольника</title>
<link rel="stylesheet" href="./hw7.css">
<link rel="icon" href="favicon.ico">
<link rel="stylesheet" href="https://unpkg.com/xp.css/dist/98.css"
>
</head>
<body>
<h3 class="desctription-heading">калькулятор равнобедренного треугольника</h3>
<div class="main-container">
<div class="image-container">
<img src="./imgs/type1.png" class="scheme-image" id="schemeImageA">
<img src="./imgs/type2.png" class="scheme-image hidden" id="schemeImageB">
</div>
<div class="controls-container">
<div class="inputs" id="inputsForm">
<p>Выберете варинат входных данных:</p>
<input type="radio" name="input-type" id="radioButtonA" checked>
<label class="radio-label" for="radioButtonA">
<span>боковая сторона и угол при основании</span>
</label><br>
<input type="radio" name="input-type" id="radioButtonB">
<label class="radio-label" for="radioButtonB">
<span>основание и прилежащий к нему угол</span>
</label>
<form>
<fieldset id="inputTypeFieldsetA">
<legend>входные данные</legend>
<label for="equalSideLength">Длина боковой стороны B:<span class="bad-input-tooltip hidden" id="equalSideLengthErr"></span></label><br>
<input class="max-w" type="number" min="0" id="equalSideLength">
<br>
<label for="baseAngle">Угол при основании α (в градусах):<span class="bad-input-tooltip hidden" id="baseAngleErr"></span></label><br>
<input class="max-w" type="number" min="0" max="180" id="baseAngle">
</fieldset>
<fieldset id="inputTypeFieldsetB" class="hidden">
<legend>входные данные</legend>
<label for="baseSideLength">Длина основания A:<span class="bad-input-tooltip hidden" id="baseSideLengthErr"></span></label><br>
<input class="max-w" type="number" min="0" id="baseSideLength">
<br>
<label for="baseAdjacentAngle">Угол прилежащий основанию β:<span class="bad-input-tooltip hidden" id="baseAdjacentAngleErr"></span></label><br>
<input class="max-w" type="number" min="0" max="180" id="baseAdjacentAngle">
</fieldset>
<fieldset id="outputsFieldset">
<legend>что вычислить</legend>
<span class="bad-input-tooltip hidden" id="outputValuesErr"><br></span>
<input type="checkbox" name="output-valuesR" id="outputValuesR" checked>
<label for="outputValuesR">радиус вписанной окружности</label><br>
<input type="checkbox" name="output-valuesH" id="outputValuesH" checked>
<label for="outputValuesH">высоты треугольника</label><br>
<input type="checkbox" name="output-valuesL" id="outputValuesL" checked>
<label for="outputValuesL">длины сторон треугольника</label><br>
</fieldset>
<button id="calculateButton" disabled>Вычислить</button>
<button id="clearButton">Отчислить</button>
</form>
</div>
<table class="outputs hidden" id="outputsTable">
</table>
</div>
</div>
</body>
<script src="./hw7.js">
</script>
</html>

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let elements = {
radioA: document.getElementById('radioButtonA'),
radioB: document.getElementById('radioButtonB'),
fieldsetA: document.getElementById('inputTypeFieldsetA'),
fieldsetB: document.getElementById('inputTypeFieldsetB'),
imageA: document.getElementById('schemeImageA'),
imageB: document.getElementById('schemeImageB'),
inputsForm: document.getElementById('inputsForm'),
equalSideLength: document.getElementById('equalSideLength'),
equalSideLengthErr: document.getElementById('equalSideLengthErr'),
baseAngle: document.getElementById('baseAngle'),
baseAngleErr: document.getElementById('baseAngleErr'),
baseSideLength: document.getElementById('baseSideLength'),
baseSideLengthErr: document.getElementById('baseSideLengthErr'),
baseAdjacentAngle: document.getElementById('baseAdjacentAngle'),
baseAdjacentAngleErr: document.getElementById('baseAdjacentAngleErr'),
outputsFieldset: document.getElementById('outputsFieldset'),
outputValuesErr: document.getElementById('outputValuesErr'),
outputR: document.getElementById('outputValuesR'),
outputH: document.getElementById('outputValuesH'),
outputL: document.getElementById('outputValuesL'),
calculateButton: document.getElementById('calculateButton'),
clearButton: document.getElementById('clearButton'),
outputsTable: document.getElementById('outputsTable')
}
console.log("loaded js!");
let currentModeIsA = true;
let outputFields = {};
let inputsA = {
l: null,
angle: null
};
let inputsB = {
l: null,
angle: null
};
function highlightErrorElement(errorFieldIndex, add = true) {
let fields = [
elements.equalSideLength,
elements.baseAngle,
elements.baseSideLength,
elements.baseAdjacentAngle,
outputsFieldset
];
if (fields[errorFieldIndex]) {
if (add) {
fields[errorFieldIndex].classList.add("bad-input-highlight");
}
else {
fields[errorFieldIndex].classList.remove("bad-input-highlight");
}
}
}
function setErrTooltip(errorFieldIndex, tooltip) {
let errElem = [
elements.equalSideLengthErr,
elements.baseAngleErr,
elements.baseSideLengthErr,
elements.baseAdjacentAngleErr,
elements.outputValuesErr
][errorFieldIndex];
if (errElem) {
highlightErrorElement(errorFieldIndex, tooltip !== "");
if (tooltip !== "") {
errElem.classList.remove("hidden");;
}
else {
errElem.classList.add("hidden");;
}
if (errorFieldIndex == 4) {
tooltip += "<br>"
}
errElem.innerHTML = tooltip;
}
}
function deg2rad(degrees) {
return degrees * (Math.PI / 180);
}
function getCalculations() {
let heights = [];//base related, side realted
let lengths = [];// base side
let radius = 0;
let baseAngle = 0;
let sideAngle = 0;
if (currentModeIsA) {
lengths[0] = 2 * Math.sin(deg2rad(inputsA.angle) / 2) * inputsA.l;
lengths[1] = inputsA.l;
baseAngle = inputsA.angle;
sideAngle = (180 - baseAngle) / 2;
}
else {
lengths[0] = inputsB.l;
lengths[1] = inputsB.l / (2 * Math.cos(deg2rad(inputsB.angle)));
sideAngle = inputsB.angle;
baseAngle = 180 - 2 * sideAngle;
}
let a = lengths[0];
let b = lengths[1];
let p = (a + b + b) / 2;
radius = Math.sqrt((p - a) * (p - b) * (p - b) / p);
heights[0] = lengths[1] * Math.sin(deg2rad(sideAngle));
heights[1] = lengths[0] * Math.sin(deg2rad(baseAngle));
return {
radius: radius,
heights: heights,
lengths: lengths
};
}
function updateCheckboxes() {
outputFields["radius"] = elements.outputR.checked;
outputFields["heights"] = elements.outputH.checked;
outputFields["lengths"] = elements.outputL.checked;
let ret = !outputFields.radius && !outputFields.heights && !outputFields.lengths;
if (ret) {
setErrTooltip(4, "Выберите хотя бы один параметр для вывода.");
} else {
setErrTooltip(4, "");
}
updateCalculateButton();
}
function updateCalculateButton() {
let ret = false;
if (currentModeIsA) {
ret = inputsA["l"] !== null && inputsA["angle"] !== null
}
else {
ret = inputsB["l"] !== null && inputsB["angle"] !== null
}
ret &= elements.outputR.checked || elements.outputH.checked || elements.outputL.checked;
elements.calculateButton.disabled = !ret;
}
function switchInputs(selectA) {
if (selectA) {
elements.imageA.classList.remove("hidden");
elements.imageB.classList.add("hidden");
elements.fieldsetA.classList.remove("hidden");
elements.fieldsetB.classList.add("hidden");
}
else {
elements.imageA.classList.add("hidden");
elements.imageB.classList.remove("hidden");
elements.fieldsetA.classList.add("hidden");
elements.fieldsetB.classList.remove("hidden");
}
updateCalculateButton();
}
function displayTable(calcResults) {
let table = elements.outputsTable;
table.innerHTML = ""; // Clear previous content
let header = "<tr><th>Параметр</th><th>Значение</th></tr>";
let rows = "";
if (outputFields.radius) {
rows += `<tr><td>R</td><td>${calcResults.radius.toFixed(3)}</td></tr>`;
}
if (outputFields.heights) {
rows += `<tr><td>h1</td><td>${calcResults.heights[0].toFixed(3)}</td></tr>`;
rows += `<tr><td>h2</td><td>${calcResults.heights[1].toFixed(3)}</td></tr>`;
}
if (outputFields.lengths) {
rows += `<tr><td>A</td><td>${calcResults.lengths[0].toFixed(3)}</td></tr>`;
rows += `<tr><td>B</td><td>${calcResults.lengths[1].toFixed(3)}</td></tr>`;
}
table.innerHTML = header + rows;
if (rows === "") {
table.innerHTML = `<h3>Выберите параметры для вычислений, сейчас таблица пустая</h3>`;
}
table.classList.remove("hidden");
}
function clearCurrentInputs() {
if (currentModeIsA) {
elements.equalSideLength.value = null;
elements.baseAngle.value = null;
setErrTooltip(0, "");
setErrTooltip(1, "");
inputsA = {
l: null,
angle: null
};
}
else {
inputsB = {
l: null,
angle: null
};
setErrTooltip(2, "");
setErrTooltip(3, "");
elements.baseSideLength.value = null;
elements.baseAdjacentAngle.value = null;
}
elements.outputsTable.classList.add("hidden");
updateCalculateButton()
}
function check180Angle(angleString) {
let angle = parseFloat(angleString);
if (isNaN(angle)) {
return "Введите корректное число";
}
if (angle <= 0) {
return "Угол должен быть больше 0";
}
if (angle >= 180) {
return "Угол должен быть меньше 180";
}
return "";
}
function check90Angle(angleString) {
let angle = parseFloat(angleString);
if (isNaN(angle)) {
return "Введите корректное число";
}
if (angle <= 0) {
return "Угол должен быть больше 0";
}
if (angle >= 90) {
return "Угол должен быть меньше 90";
}
return "";
}
function checkLength(lengthString) {
let length = parseFloat(lengthString);
if (!isFinite(length)) {
return "Введите корректное число";
}
if (length <= 0) {
return "Длина должна быть больше 0";
}
return "";
}
function handleSwitchInputs(event) {
if (event.target.id[event.target.id.length - 1].toLowerCase() == "a") {
currentModeIsA = true;
switchInputs(true);
console.log("Switching inputs to A");
}
else {
currentModeIsA = false;
switchInputs(false);
console.log("Switching inputs to B");
}
}
function handleInputsUpdate(event) {
switch (event.target.id) {
case "equalSideLength":
{
const err = checkLength(event.target.value);
setErrTooltip(0, err);
if (err === "") {
inputsA.l = parseFloat(event.target.value);
} else {
inputsA.l = null;
}
}
break;
case "baseAngle":
{
const err = check180Angle(event.target.value);
setErrTooltip(1, err);
if (err === "") {
inputsA.angle = parseFloat(event.target.value);
} else {
inputsA.angle = null;
}
}
break;
case "baseSideLength":
{
const err = checkLength(event.target.value);
setErrTooltip(2, err);
if (err === "") {
inputsB.l = parseFloat(event.target.value);
} else {
inputsB.l = null;
}
}
break;
case "baseAdjacentAngle":
{
const err = check90Angle(event.target.value);
setErrTooltip(3, err);
if (err === "") {
inputsB.angle = parseFloat(event.target.value);
} else {
inputsB.angle = null;
}
}
break;
default:
console.log(event.target.id)
break;
}
updateCalculateButton();
}
function handleFieldsetEvent(event) {
if (event.target.type === 'radio') {
handleSwitchInputs(event);
} else if (event.target.type === 'number') {
handleInputsUpdate(event);
}
}
elements.inputsForm.addEventListener('change', handleFieldsetEvent);
elements.inputsForm.addEventListener('input', handleFieldsetEvent);
elements.outputsFieldset.addEventListener('change', (event) => {
if (event.target.type === 'checkbox') {
updateCheckboxes();
}
});
elements.clearButton.addEventListener('click', (event) => {
event.preventDefault();
clearCurrentInputs()
});
elements.calculateButton.addEventListener('click', (event) => {
event.preventDefault();
displayTable(getCalculations());
});
// чтобы не сконфузило
updateCheckboxes();
switchInputs(elements.radioA.checked);

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<body>
<h3>Языки программирования</h3>
<ul>
<li><a href ="">Python</a></li>
<li><a href ="">C</a></li>
<li><a id="test" href ="">Java</a></li>
<li><a href ="">JavaScript</a></li>
</ul>
</body>
<script>
let elem = document.getElementById("test");
elem = elem.parentNode;
while(elem.parentElement!==null){
let newElem =document.createElement(elem.children[0].tagName);
newElem.innerHTML= "Новый Элемент";
elem.appendChild(newElem);
elem=elem.parentNode;
}
</script>