Chart.js grafikasi
Chart.js HTML-ga asoslangan grafiklarni yaratish uchun bepul JavaScript kutubxonasidir. Bu JavaScript uchun eng oddiy vizualizatsiya kutubxonalaridan biri bo‘lib, ko‘plab o‘rnatilgan diagramma turlari bilan birga keladi:
- Nuqtali diagramma
- Line Chart
- Bar Chart
- Pie Chart
- Donut Chart
- Bubble Chart
- Area Chart
- Radar Chart
- Mixed Chart
Chart.js’dan qanday foydalaniladi?
1. Ta’minlovchi CDN (Content Delivery Network) ga havola qo‘shing:
<script
src="https://cdn.jsdelivr.net/npm/chart.js@4.5.0">
</script>
2. HTMLda diagramma chizmoqchi bo‘lgan joyga qo‘shing:
<canvas>
id="myChart" style="width:100%;max-width:700px"
</canvas>
canvas elementi noyob id’ga ega bo‘lishi kerak.
Ustunli diagrammaning odatiy sintaksisi:
const myChart = new Chart("myChart", {
type: "bar",
data: {},
options: {}
});
Chiziqli diagrammaning odatiy sintaksisi:
const myChart = new Chart("myChart", {
type: "line",
data: {},
options: {}
});
Ustunli diagrammalar
Manba kodi
const xValues = ["Italy", "France", "Spain", "USA", "Argentina"];
const yValues = [55, 49, 44, 24, 15];
const barColors = ["red", "green","blue","orange","brown"];
new Chart("myChart", {
type: "bar",
data: {
labels: xValues,
datasets: [{
backgroundColor: barColors,
data: yValues
}]
},
options: {...}
});
Color Shades:
const barColors = [
"rgba(0,0,255,1.0)",
"rgba(0,0,255,0.8)",
"rgba(0,0,255,0.6)",
"rgba(0,0,255,0.4)",
"rgba(0,0,255,0.2)",
];
Gorizontal ustunlar
Index o‘qini (indexAxis) y ga o‘rnating:
indexAxis: 'y',
Doiraviy diagrammalar
Misol
new Chart("myChart", {
type: "pie",
data: {
labels: xValues,
datasets: [{
backgroundColor: barColors,
data: yValues
}]
},
options: {
title: {
display: true,
text: "World Wide Wine Production"
}
}
});
Halqasimon diagrammalar
Nuqtali diagrammalar
House Prices vs. Size
Manba kodi
const xyValues = [
{x:50, y:7},
{x:60, y:8},
{x:70, y:8},
{x:80, y:9},
{x:90, y:9},
{x:100, y:9},
{x:110, y:10},
{x:120, y:11},
{x:130, y:14},
{x:140, y:14},
{x:150, y:15}
];
new Chart("myChart", {
type: "scatter",
data: {
datasets: [{
pointRadius: 4,
pointBackgroundColor: "rgba(0,0,255,1)",
data: xyValues
}]
},
options:{...}
});
Chiziqli grafiklar
House Prices vs. Size
Manba kodi
const xValues = [50,60,70,80,90,100,110,120,130,140,150];
const yValues = [7,8,8,9,9,9,10,11,14,14,15];
new Chart("myChart", {
type: "line",
data: {
labels: xValues,
datasets: [{
backgroundColor:"rgba(0,0,255,1.0)",
borderColor: "rgba(0,0,255,0.1)",
data: yValues
}]
},
options:{...}
});
Agar siz borderColor ni nolga o‘rnatsangiz, chiziqli grafikni tarqatishingiz mumkin:
borderColor: "rgba(0,0,0,0)",
Bir nechta chiziq
Manba kodi
const xValues = [100,200,300,400,500,600,700,800,900,1000];
new Chart("myChart", {
type: "line",
data: {
labels: xValues,
datasets: [{
data: [860,1140,1060,1060,1070,1110,1330,2210,7830,2478],
borderColor: "red",
fill: false
},{
data: [1600,1700,1700,1900,2000,2700,4000,5000,6000,7000],
borderColor: "green",
fill: false
},{
data: [300,700,2000,5000,6000,4000,2000,1000,200,100],
borderColor: "blue",
fill: false
}]
},
options: {
legend: {display: false}
}
});
Chiziqli grafiklar
Manba kodi
const xValues = [];
const yValues = [];
generateData("x * 2 + 7", 0, 10, 0.5);
const ctx = document.getElementById('myChart');
new Chart(ctx, {
type: "line",
data: {
labels: xValues,
datasets: [{
fill: false,
pointRadius: 1,
borderColor: "rgba(255,0,0,0.5)",
data: yValues
}]
},
options: {...}
});
function generateData(value, i1, i2, step = 1) {
for (let x = i1; x <= i2; x += step) {
yValues.push(eval(value));
xValues.push(x);
}
}
Funksiya grafiklari
Chiziqli grafik bilan bir xil. Faqat generateData parametr(lar)ini o‘zgartiring:
generateData("Math.sin(x)", 0, 10, 0.5);
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Yutuqlaringizni kuzating – bu bepul!