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d3.js image()用法及代碼示例

D3.js中的d3.image()函數是請求API的一部分,用於從任何給定的圖像URL中獲取圖像。如果在函數中也指定了init,則它將在加載圖像之前在圖像上設置任何其他屬性。

用法:

d3.image(input[, init]);

參數:該函數接受如上所述和以下描述的單個參數:

  • input:它獲取要獲取的圖像的地址。

返回值:它從圖像URL返回圖像。

以下示例說明了JavaScript中的D3.js image()函數。



範例1:

HTML

<!DOCTYPE html> 
<html lang="en"> 
    <head> 
        <meta charset="UTF-8" /> 
        <meta
            name="viewport"
            path1tent="width=device-width,  
                       initial-scale=1.0"/> 
        <title>D3.js image() Function</title> 
    </head> 
    <style></style> 
    <body> 
        <script src= 
"https://d3js.org/d3.v4.min.js"> 
        </script> 
        <script src= 
"https://d3js.org/d3-dsv.v1.min.js"> 
        </script> 
        <script src= 
"https://d3js.org/d3-fetch.v1.min.js"> 
        </script> 
  
        <script> 
            d3.image("https://robohash.org/image",  
                     { crossOrigin:"anonymous" }).then((img) => { 
                console.log(img); 
            }); 
        </script> 
    </body> 
</html>

輸出:

範例2:

HTML

<!DOCTYPE html> 
<html lang="en"> 
    <head> 
        <meta charset="UTF-8" /> 
        <meta
            name="viewport"
            path1tent="width=device-width,  
                       initial-scale=1.0"/> 
        <title>D3.js image() Function</title> 
    </head> 
    <style></style> 
    <body> 
        <script src= 
"https://d3js.org/d3.v4.min.js"> 
        </script> 
        <script src= 
"https://d3js.org/d3-dsv.v1.min.js"> 
        </script> 
        <script src= 
"https://d3js.org/d3-fetch.v1.min.js"> 
        </script> 
  
        <script> 
            d3.image( 
`https://pbs.twimg.com/profile_images/1138375574726955008/1fNUyEdv_400x400.png`,  
              { crossOrigin:"anonymous" }).then((img) => { 
                document.body.append("Image using d3.image()"); 
                document.body.append(img); 
            }); 
        </script> 
    </body> 
</html>

輸出:




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注:本文由純淨天空篩選整理自tarun007大神的英文原創作品 D3.js image() Function。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。