我想在圖像上選擇不同的部分,每個部分我需要獲取座標(我已儘可能geting一個單一的響應座標保存,我是開心!)的事情是當做多個圈子我失去了3件事情。麻煩製作圖像熱圖多個答案
首先,我需要我的壞實現循環來cicle thorugh我的箱子我似乎無法找到爲什麼「我」不上單擊更改...
其次一個按鈕,得到我的環回0和擦除畫布
三不超過5個圈可以放在圓圈...
我有一個點,我的問題是太具體的研究,我認爲? :(我剛剛開始在這裏的JavaScript ...請幫助我,
這是我的小提琴感謝您的所有幫助,如果這適用於你去爲它我離開了單答案響應那裏評論= 3
http://plnkr.co/edit/ja9fNtOyd8lzH6BekDpo?p=preview
<div id="Click">Seleccione las áreas de la imagen que más le gustan </div>
<br><br><br><br><br><br><br>
<img src="http://i332.photobucket.com/albums/m340/carlospatino21/megaman-5.jpg" alt="" border="0" id="mmc">
<style>
#myCanvas
{
position: absolute;
left: 0px;
top: 30px;
background-color: transparent;
opacity:0.5;
border-style: dotted;;
max-width:295px;
max-height:337px;
width: auto;
height: auto;
display: block;
}
#mmc
{
position: absolute;
left: 0px;
top: 30px;
z-index: 0;
display: block;
max-width:295px;
max-height:337px;
width: auto;
height: auto;
}
#Click
{
position: absolute;
left: 0px;
top: 0px;
z-index: 1;
}
</style>
<canvas id="myCanvas" width="295px" height="337px" onclick="evt2()" ></canvas>
<script>
function writeMessage(canvas, message) {
var context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height);
context.font = '15pt Calibri';
context.fillStyle = 'black';
context.fillText(message, 10, 25);}
function getMousePos(canvas, evt) {
var rect = canvas.getBoundingClientRect();
return {
x: evt.clientX - rect.left,
y: evt.clientY - rect.top
};
}
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
canvas.addEventListener('click', function(evt) {
var mousePos = getMousePos(canvas, evt);
var message = 'Mouse position: ' + mousePos.x + ',' + mousePos.y;
var centerX = event.clientX ;
var centerY = event.clientY - 30 ;
context.beginPath();
context.arc(centerX, centerY,20,0, 2 * Math.PI);
context.fillStyle = 'green';
context.fill();
context.lineWidth = 1;
context.strokeStyle = '#003300';
context.stroke();
}, false);
//function evt2(){
//document.getElementById("canvas1_NewVar1").value = event.clientX + ',' + (event.clientY-30);}
var d = "canvas1_NewVar";
for (var i = 1; i < 5; i++)
onclick = (function(){return function evt2() {
document.getElementById(d+i).value = event.clientX + ',' + (event.clientY-30)
};})(i);
</script>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<input id="canvas1_NewVar1" type="text" size="20" class="puntos" onclick="evt2()" >
<input id="canvas1_NewVar2" type="text" size="20" class="puntos" onclick="evt2()" >
<input id="canvas1_NewVar3" type="text" size="20" class="puntos" onclick="evt2()" >
<input id="canvas1_NewVar4" type="text" size="20" class="puntos" onclick="evt2()" >
<input id="canvas1_NewVar5" type="text" size="20" class="puntos" onclick="evt2()" >
你的'onclick'事件不應該在你的for循環。有一個'onclick'事件並跟蹤'i'的值(每增加一次點擊或者你想處理它)來設置相應的輸入值 –
Ahm ...我認爲它不在for內。 ..但也許我不理解你....對不起... – Lolo
我無法編輯... LINE 1 for(var i = 1; i <5; i ++) LINE 2 onclick =(function(){return function evt2(){document.getElementById(d + i).value = event.clientX +','+(event.clientY-30) };})(i); – Lolo