Canvas de HTML
HTML Canvas is very suitable forScatter Plot(Scatter Plots).
HTML Canvas is very suitable forLine Chart(Line Graphs).
HTML Canvas is very suitable forCompositionScatter Plot and Line Chart.
Scatter Plot
Source Code
const xArray = [50,60,70,80,90,100,110,120,130,140,150]; const yArray = [7,8,8,9,9,9,10,11,14,14,15]; // Scatter Plot ctx.fillStyle = "red"; for (let i = 0; i < xArray.length-1; i++) { let x = xArray[i]*400/150; let y = yArray[i]*400/15; ctx.beginPath(); ctx.ellipse(x, y, 2, 3, 0, 0, Math.PI * 2); ctx.fill(); }
Line Chart
Source Code
let xMax = canvas.height; let slope = 1.2; let intercept = 70; // Scatter Plot ctx.moveTo(0, intercept); ctx.lineTo(xMax, f(xMax)); ctx.strokeStyle = "black"; ctx.stroke(); // Función de línea función f(x) { devolver x * pendiente + intercepto; }
Composition
Source Code
let xMax = canvas.height; let yMax = canvas.width; let slope = 1.2; let intercept = 70; const xArray = [50,60,70,80,90,100,110,120,130,140,150]; const yArray = [7,8,8,9,9,9,10,11,14,14,15]; // Scatter Plot ctx.fillStyle = "red"; for (let i = 0; i < xArray.length-1; i++) { let x = xArray[i]*400/150; let y = yArray[i]*400/15; ctx.beginPath(); ctx.ellipse(x, y, 2, 3, 0, 0, Math.PI * 2); ctx.fill(); } // Plot Line ctx.moveTo(0, intercept); ctx.lineTo(xMax, f(xMax)); ctx.strokeStyle = "black"; ctx.stroke(); // Función de línea función f(x) { devolver x * pendiente + intercepto; }