textBaseline xususiyati

textBaseline xususiyati fillText usuli yoki strokeText usuli yordamida chizilgan matnning vertikal tekislashini belgilaydi. Quyidagi qiymatlardan birini qabul qiladi: top, hanging, middle, alphabetic (standart), ideographic, bottom (qiymatlarni tushunish uchun www.w3schools.com/tags/canvas_textbaseline.asp sahifasiga qarang).

Sintaksis

javascriptkontekst.textBaseline = qiymat;

Misol

Keling, matn uchun vertikal tekislashni yuqori chiziq bo‘yicha belgilaymiz:

html<canvas id="canvas" width="200" height="200" style="background: #f4f4f4;"></canvas>

javascriptconst canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

ctx.strokeStyle = 'red';
ctx.moveTo(0, 100);
ctx.lineTo(400, 100);
ctx.stroke();
ctx.font="14px Arial";
ctx.textBaseline = 'top'; 
ctx.fillText('text', 80, 100);

Результат:

Misol

Endi esa keling, matn uchun vertikal tekislashni pastki chiziq bo‘yicha belgilaymiz:

html<canvas id="canvas" width="200" height="200" style="background: #f4f4f4;"></canvas>

javascriptconst canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

ctx.strokeStyle = 'red';
ctx.moveTo(0, 100);
ctx.lineTo(400, 100);
ctx.stroke();
ctx.font="14px Arial";
ctx.textBaseline="bottom"; 
ctx.fillText('text', 80, 100); 

Результат:

Shuningdek qarang