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如何在kineticjs上始終使用頂部圖像?它不工作。我想做一個像水印一樣的東西,每一個添加的圖層都會出現在它後面。Kineticjs的圖像總是在頂部(如水印)
所以,我將與圖像(像水印)開始,然後我將添加圖層,然後當我添加圖層水印將始終在頂部(Z-指數)
<script>
var object_desktop = {width: 650, height: 400};
var stage = new Kinetic.Stage({
container: 'canvas',
width: object_desktop.width,
height: object_desktop.height
});
//create background
var background = new Kinetic.Rect({
x: 0,
y: 0,
width: object_desktop.width,
height: object_desktop.height,
fill: "#ffffff",
stroke: "#666666",
strokeWidth: 1
});
//create group
var elementGroup = new Kinetic.Group({
x: 0,
y: 0
});
elementGroup.add(background)
//create layer
var layer = new Kinetic.Layer();
layer.add(elementGroup);
stage.add(layer);
stage.draw();
$('button[type=submit]').click(function() {
stage.toDataURL({
callback: function (dataUrl) {
$('input[name=upload]').val(dataUrl);
$('#footer_form').submit();
}
});
return false;
});
if (!(window.File && window.FileReader && window.FileList && window.Blob)) {
alert('Este browser não suporta essa funcionalidade, atualize-o.');
}
$(document).ready(function() {
var img = new Image();
img.onload = function(){
Image= new Kinetic.Image({ x: 0, y: 0, width: 83, height: 67,image: img, draggable:true});
layer.add(Image);
layer.draw();
};
img.src = '{{ STATIC_URL }}img/logotipo2.png';
initStage();
});
</script>
您可以在畫布div內使用絕對位置的(非畫布)div。 –
但是,如果我使用絕對位置div,它不會拖動:( –