Jquery 调整图像大小时,如何调整图像贴图的坐标?
在我的一个管理页面中,我有如下div:Jquery 调整图像大小时,如何调整图像贴图的坐标?,jquery,imagemap,Jquery,Imagemap,在我的一个管理页面中,我有如下div: <div class="row"> <div class="col-lg-12"> <a href="#" id="btnCreateSelector">Mark Image area</a> </div> <div class="col-lg-12"> <div id="canvas" style="position:re
<div class="row">
<div class="col-lg-12">
<a href="#" id="btnCreateSelector">Mark Image area</a>
</div>
<div class="col-lg-12">
<div id="canvas" style="position:relative;width:800px;">
<img src="img/1324_2041.jpg" style="width:100%;height:auto;" class="img-responsive" />
</div>
</div>
</div>
现在,单击“btnCreateSelector”时,会创建一个可拉伸的覆盖div,该div基本上用于选择图像上稍后用作图像热点的区域。该叠加div还包含保存按钮,用于保存捕获和保存选定区域的坐标
$('#btnCreateSelector').click(function() {
var guid = $.fn.genUID();
var string = '<div id="' + guid + '" data-id="'+ guid +'" class="area area-unsaved" style="box-sizing: content-box;top: 0; left: 0; width: 140px; height: 140px;">';
string += '<a href="#" id="' + guid + '" data-id="'+ guid +'" class="btnSave btn btn-info btn-xs" title="Save"><span class=" glyphicon glyphicon-floppy-save"></span></a> ';
string += '<a href="#" id="' + guid + '" data-id="'+ guid +'" class="btnEdit btn btn-warning btn-xs" title="Edit"><span class="glyphicon glyphicon-pencil"></span></a> ';
string += '<a href="#" id="' + guid + '" data-id="'+ guid +'" class="btnDelete btn btn-danger btn-xs" title="Delete"><span class="glyphicon glyphicon-remove"></span></a> ';
string += "</div>";
$("#canvas").append(string);
$(".area").resizable({
handles: "n, e, s, w, nw, ne, sw, se",
minHeight: 1,
minWidth: 1,
}).draggable();
});
$(document).on("click", ".btnSave", function (e) {
e.preventDefault();
var id = $(this).attr("data-id");
curr_div_id = id;
var t = parseFloat($("#" + id).css("top"));
var l = parseFloat($("#" + id).css("left"));
var w = parseFloat($("#" + id).css("width"));
var h = parseFloat($("#" + id).css("height"));
$.ajax({
url:"<?=site_url();?>pm/maparea/add/",
type:"POST",
data: {m_top: t, m_left: l, m_width: w, m_height: h},
success: function (response) {
if(response == '1')
{
alert('success');
}
},
error: function(response) {
alert(response);
}
});
});
在一个公众可以访问的页面中,我显示了上面的图像1324_2041.jpg,上面有图像热点
<div id="vas">
<img src="<?=site_url();?>assets/admin/uploads/pages_img/1324_2041.jpg" usemap="#article_map" class="img-fluid" />
<map name="article_map">
<area shape="rect" coords="137.025,327.20625,581.175,556.36875" href="#" alt="Sun">
</map>
</div>
现在,从这里开始我的问题。从数据库获得的坐标与预期的图像部分不重叠。它们在桌面视图、平板视图或移动设备上处于关闭状态。请告知我哪里出错。我是否正确捕获坐标?调整图像大小时如何捕获或调整坐标 最好改用svg,因为它具有响应性。图像地图不再常用于任何可能的副本