[英]How to display captured image with HTML2canvas in another div
Currently when i press the button, the captured image will be displayed in the body of the HTML.目前,当我按下按钮时,捕获的图像将显示在 HTML 的主体中。 But how do I make it that the captured image will only be displayed in another div with the id of "image".
但是如何使捕获的图像仅显示在另一个具有“图像” id 的 div 中。 I tried using document.getElementById("image").appendChild(canvas) but it did not work.
我尝试使用 document.getElementById("image").appendChild(canvas) 但它不起作用。 Need to do this as I'm planning to hide the element first by using getElementById("image").="none" and it'll only appear after a click of a button.
需要这样做,因为我计划首先使用 getElementById("image").="none" 隐藏元素,并且它只会在单击按钮后出现。
HTML code: HTML 代码:
<div>
<table id="capture">
<tr id="date" class="selected">
<th>Date</th>
<th>11/5</th>
<th>12/5</th>
<th>13/5</th>
<th>14/5</th>
<th>15/5</th>
<th>16/5</th>
<th>17/5</th>
</tr>
<tr class="selected">
<th>Day</th>
<th>Mon</th>
<th>Tue</th>
<th>Wed</th>
<th>Thu</th>
<th>Fri</th>
<th>Sat</th>
<th>Sun</th>
</tr>
</table>
<input type="button" value="Last Week's Dosage History" class="submitonclick="showlastweek()"/>
<button type="button" class="submit" onclick="capture1()">Capture<small></small></button>
</div>
<div id="image">
//image to be placed here
</div>
Js code: js代码:
function capture1(){
html2canvas(document.querySelector("#capture")).then(canvas => {
document.body.appendChild(canvas)
});
}
Here you go.这里是 go。 Tested and working.
测试和工作。
document.getElementById("image").appendChild(canvas);
Works just fine... But getElementById("image").="none"
means nothing.工作得很好......但是
getElementById("image").="none"
没有任何意义。 See below.见下文。
function capture1() { html2canvas(document.querySelector("#capture")).then((canvas) => { document.getElementById("image").appendChild(canvas); }); } function showDiv() { var hiddenDiv = document.querySelector("#image"); hiddenDiv.style.display = hiddenDiv.style.display === "none"? "": "none"; }
<div> <table id="capture"> <tr id="date" class="selected"> <th>Date</th> <th>11/5</th> <th>12/5</th> <th>13/5</th> <th>14/5</th> <th>15/5</th> <th>16/5</th> <th>17/5</th> </tr> <tr class="selected"> <th>Day</th> <th>Mon</th> <th>Tue</th> <th>Wed</th> <th>Thu</th> <th>Fri</th> <th>Sat</th> <th>Sun</th> </tr> </table> <input type="button" value="Last Week's Dosage History" class="submit" onclick="showlastweek()"/> <button type="button" class="submit" onclick="capture1()"> Capture<small></small> </button> </div> <div id="image" style="display: none;"> //image to be placed here </div> <br /> <br /> <button type="button" class="submit" onclick="showDiv()"> Toggle div display </button>
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