p5.js中p5.MediaElement的time()方法用於設置或返回媒體元素的當前時間。它接受一個參數,該參數表示媒體應跳至或跳至的時間(以秒為單位)。可以通過不向函數傳遞任何參數來返回媒體的當前時間。
用法:
time( time )
參數:此方法接受如上所述和以下描述的單個參數:
- time:它是一個數字,指定媒體應跳至的時間(以秒為單位)。它是一個可選參數。
返回值:此方法返回一個Number,表示媒體元素的當前時間。
以下示例說明了p5.js中的time()方法:
例:
Javascript
function setup() {
createCanvas(500, 400);
textSize(18);
text("Click on the buttons to skip " +
"the video forward or backward",
20, 20);
example_media =
createVideo("sample-video.mp4");
example_media.size(500, 300);
example_media.position(20, 100);
example_media.showControls();
skipbwdBtn =
createButton("Skip Back 2 Seconds");
skipbwdBtn.position(30, 40);
skipbwdBtn.mousePressed(skipBackward);
skipfwdBtn =
createButton("Skip Forward 2 Seconds");
skipfwdBtn.position(200, 40);
skipfwdBtn.mousePressed(skipForward);
}
function skipForward() {
clear();
// Get the current time
let currTime = example_media.time();
// Add 2 seconds to skip forward
let fwdTime = currTime + 2;
// Set the new time that is two seconds
// after the current time
example_media.time(fwdTime);
text("The video has been skipped forward",
20, 80);
text("Click on the buttons to skip " +
"the video forward or backward",
20, 20);
}
function skipBackward() {
clear();
// Get the current time
let currTime = example_media.time();
// Subtract 2 seconds to skip back
let fwdTime = currTime - 2;
// Set the new time that is two seconds
// before the current time
example_media.time(fwdTime);
text("The video has been skipped back",
20, 80);
text("Click on the buttons to skip " +
"the video forward or backward",
20, 20);
}
輸出:
在線編輯: https://editor.p5js.org/
環境設置: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
參考:https://p5js.org/reference/#/p5.MediaElement/time
相關用法
- d3.js time.clamp()用法及代碼示例
- d3.js time.interpolate()用法及代碼示例
- d3.js time.tickFormat()用法及代碼示例
- d3.js time.ticks()用法及代碼示例
- d3.js time.copy()用法及代碼示例
- d3.js scaleTime time()用法及代碼示例
- d3.js time.invert()用法及代碼示例
- d3.js time.domain()用法及代碼示例
注:本文由純淨天空篩選整理自sayantanm19大神的英文原創作品 p5.MediaElement time() Method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。