google map是有多个小图片拼起来显示的,请问放大的时候,他是怎么拼成一个大图片做栅格图片放大的啊? 你选择中国地区,放大到一定程度你就看得见是多少图片拼接起来的了。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 我是问放大是怎么用js实现的,就是把一个栅格图片放大(失真) 你说这种效果?<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> Document </TITLE><style type="text/css">body{ padding : 0px ; margin : 0px; background-color : #999999 ;}.DivMain { position : absolute ; text-align : center ; overflow : hidden ;}.DivMenu { position : absolute ; text-align : left ; overflow : hidden ;}.ImgMain { position : absolute ; overflow : hidden ; border : 0px ;}.TBMain { background-color : #CCCCCC ; padding : 0px ; border : 0px ; z-index : 99 ; line-height : 18px ; }.TBMenu { background-color : #FFCCCC ; padding : 0px ; border : 0px ; z-index : 99 ; color: #000000 ; }.HrScroll { margin : 0px; background-color : #FFFFFF ; padding : 0px ; border : 0px ; z-index : 99 ; color : #000000 ; border-spacing : 0px; width : 160px ; height : 10px ;}</style><SCRIPT LANGUAGE="JavaScript"><!-- var originalWidth ; var originalHeight ; var objDivMain ; var objTbMain ; var objImg ; var ObjDrag ; var objDivMenu ; var objTbMemu ; var objbtnImgInfo ; var objDivFlag; var objHrScroll; var oRcts ; var oTextRange ; function setInit(obj) { objDivMain = document.getElementById("divMain") ; objTbMain = document.getElementById("TbMain") ; objDivMenu = document.getElementById("DivMenu") ; objTbMenu = document.getElementById("TbMenu") ; objImg = document.getElementById("imgMain") ; objbtnImgInfo = document.getElementById("btnImgInfo") ; objDivFlag = document.getElementById("DivFlag"); objHrScroll = document.getElementById("HrScroll"); originalWidth = obj.width; originalHeight = obj.height; objImg.style.width = originalWidth; objImg.style.height = originalHeight; fmImgZoom.ZoomIn.disabled = false; fmImgZoom.ZoomOut.disabled = false; fmImgZoom.Original.disabled = false; fmImgZoom.FitScreen.disabled = false; fmImgZoom.btnView.disabled = false; fmImgZoom.btnImgInfo.disabled = false; fmImgZoom.FitScreen.click();}function setFitScreen() { initImg(objImg);}function setOriginal() { var intBodyWidth ; var intBodyHeight ; intBodyWidth = document.body.clientWidth ; intBodyHeight = document.body.clientHeight ; objImg.style.left = 0 ; objImg.style.top = 0 ; objImg.style.width = originalWidth; objImg.style.height = originalHeight; objImg.style.zoom = 1 ; objDivMain.style.width = intBodyWidth -100 ; objDivMain.style.height = intBodyHeight - objTbMain.clientHeight - 100; fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom);}function initImg(objCurrent) { var intBodyWidth ; var intBodyHeight ; intBodyWidth = document.body.clientWidth ; intBodyHeight = document.body.clientHeight ; objTbMain.style.top = 0; objTbMain.style.height = 20; objTbMain.style.width = intBodyWidth; objDivMain.style.left = 0 ; objDivMain.style.height = intBodyHeight - objTbMain.clientHeight - 100; objDivMain.style.width = intBodyWidth - 100; initZoom(objCurrent);}function initZoom(obj){ var intObjWidth ; var intObjHeight ; var intDivHeight ; var intZoomRatio ; intDivHeight = objDivMain.style.pixelHeight; intObjHeight = obj.style.pixelHeight; intZoomRatio = intDivHeight / intObjHeight; obj.style.zoom = intZoomRatio ; obj.style.top = 0; obj.style.left = 0; fnWritePos (obj.style.left,obj.style.top,obj.style.zoom) ;}function fnMouseDown(obj) { ObjDrag=obj; ObjDrag.setCapture(); ObjDrag.l=event.x-ObjDrag.style.pixelLeft; ObjDrag.t=event.y-ObjDrag.style.pixelTop;}function fnMouseMove() { if(ObjDrag!=null) { ObjDrag.style.left = event.x-ObjDrag.l; ObjDrag.style.top = event.y-ObjDrag.t; fnWritePos(ObjDrag.style.left,ObjDrag.style.top,ObjDrag.style.zoom); }}function fnMouseUp() { if(ObjDrag!=null) { ObjDrag.releaseCapture(); ObjDrag=null; }}function fnZoomIn() { objImg.style.zoom = parseFloat(objImg.style.zoom) + 0.01 ; fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom);}function fnZoomOut() { if(objImg.style.zoom>0.01){ objImg.style.zoom = parseFloat(objImg.style.zoom) - 0.01 ; fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom); }}function fnDivMouseDown() { if ( event.button == 2 && event.srcElement.id != "imgMain") { objDivMenu.style.top = event.y; objDivMenu.style.left = event.x; objDivMenu.style.visibility = ""; oTextRange = objHrScroll.createTextRange() ; oRcts = oTextRange.getClientRects(); oBndRct = objDivFlag.getBoundingClientRect(); objDivFlag.style.top = oRcts[0].top; objDivFlag.style.left = oRcts[0].left + parseInt(objImg.style.zoom * 10) ; objDivFlag.style.visibility = ""; } if ( event.button == 1 && event.srcElement.id != "imgMain") { objDivMenu.style.visibility = "hidden"; objDivFlag.style.visibility = "hidden"; }}function fnWritePos(intLeft,intTop,intZoom) { objbtnImgInfo.innerText = " ImgLeft:" + intLeft + " ImgTop:" + intTop + " ImgZoom:" + intZoom ;}function fnSlipMouseDown(obj) { ObjDrag=obj; ObjDrag.setCapture(); ObjDrag.l = event.x - ObjDrag.style.pixelLeft; ObjDrag.t = ObjDrag.style.pixelTop;}function fnSlipMouseMove() { if(ObjDrag!=null) { if(event.x >= oRcts[0].left && event.x <= oRcts[0].right ){ ObjDrag.style.left = event.x - objDivFlag.offsetWidth / 2; } ObjDrag.t = ObjDrag.style.pixelTop; var intCurrentPos = ObjDrag.style.pixelLeft - oRcts[0].left + objDivFlag.offsetWidth / 2; var intPicZoom = intCurrentPos / 10; objImg.style.zoom = intPicZoom; fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom); }}function fnSlipMouseUp() { if(ObjDrag!=null) { ObjDrag.releaseCapture(); ObjDrag=null; }}function setDisplay() { if(objImg.style.visibility == ""){ objImg.style.visibility = "hidden"; } else{ objImg.style.visibility = ""; }}function fnContextMenu() { window.event.returnValue=false;}//--></SCRIPT></HEAD><BODY oncontextmenu="fnContextMenu()"><form name="fmImgZoom"><TABLE id="tbMain" class="TBMain"><TR> <TD> <input type="button" name="ZoomIn" value="ZoomIn" onclick="fnZoomIn()" disabled> <input type="button" name="ZoomOut" value="ZoomOut" onclick="fnZoomOut()" disabled> <input type="button" name="Original" value="Original" onclick="setOriginal()" disabled> <input type="button" name="FitScreen" value="FitScreen" onclick="setFitScreen()" disabled> <input type="button" name="btnView" value="hide/view" onclick="setDisplay()" disabled> <input id="btnImgInfo" size="50" disabled> </TD></TR></TABLE><div id="divMain" class="DivMain" onmousedown="fnDivMouseDown()"><img src="22.jpg" id="imgMain" class="imgMain" onload="setInit(this)" onmousedown="fnMouseDown(this)" onmousemove="fnMouseMove()" onmouseup="fnMouseUp()" ></div><div id="divMenu" class="DivMenu" style="visibility:hidden"" onmousedown="fnMouseDown(this)" onmousemove="fnMouseMove()" onmouseup="fnMouseUp()" ><TABLE class="TBMenu"><TR> <TD>10%</TD> <TD><button id="HrScroll" class="HrScroll"><hr noshade></button> </TD> <TD>1600%</TD></TR></TABLE></div><DIV ID="DivFlag" STYLE="position:absolute;visibility:hidden;width:1px;height:10px;z-index:99" onmousedown="fnSlipMouseDown(this)" onmousemove="fnSlipMouseMove()" onmouseup="fnSlipMouseUp()" onmouseover="this.style.cursor ='hand'" onmouseout="this.style.cursor=''">↑</DIV></form></BODY></HTML> 求单击页面图片按钮后通过DIV弹出图片放大的代码(图片要不失真) 鼠标滑过提示问题 怎么通过单选取消复选框的值? JS嵌套问题(大哥们帮我呀!) Java中把对象设置为null没有必要,为什么在JavaScript中把对象设置为null是个好习惯呢? ie中appendChild加入的结点中如果有select元素的问题?? 二个下拉选择框,连动如何实现 我想保持一个页面,但不知道怎么做,各位大哥帮我看看吧! iframe问题? 比较流行的图片底部一条透明层,上面有文字,用css如何实现的? 初学者请教问题之四:字符串比较 怎样通过js调用java,实现把js中的数据存如数据库
<HTML>
<HEAD>
<TITLE> Document </TITLE>
<style type="text/css">
body{
padding : 0px ;
margin : 0px;
background-color : #999999 ;}
.DivMain {
position : absolute ;
text-align : center ;
overflow : hidden ;
}
.DivMenu {
position : absolute ;
text-align : left ;
overflow : hidden ;
}
.ImgMain {
position : absolute ;
overflow : hidden ;
border : 0px ;
}
.TBMain {
background-color : #CCCCCC ;
padding : 0px ;
border : 0px ;
z-index : 99 ;
line-height : 18px ;
}
.TBMenu {
background-color : #FFCCCC ;
padding : 0px ;
border : 0px ;
z-index : 99 ;
color: #000000 ;
}
.HrScroll {
margin : 0px;
background-color : #FFFFFF ;
padding : 0px ;
border : 0px ;
z-index : 99 ;
color : #000000 ;
border-spacing : 0px;
width : 160px ;
height : 10px ;
}
</style><SCRIPT LANGUAGE="JavaScript">
<!-- var originalWidth ;
var originalHeight ; var objDivMain ;
var objTbMain ; var objImg ;
var ObjDrag ; var objDivMenu ;
var objTbMemu ; var objbtnImgInfo ; var objDivFlag;
var objHrScroll; var oRcts ;
var oTextRange ; function setInit(obj) { objDivMain = document.getElementById("divMain") ;
objTbMain = document.getElementById("TbMain") ; objDivMenu = document.getElementById("DivMenu") ;
objTbMenu = document.getElementById("TbMenu") ; objImg = document.getElementById("imgMain") ;
objbtnImgInfo = document.getElementById("btnImgInfo") ;
objDivFlag = document.getElementById("DivFlag");
objHrScroll = document.getElementById("HrScroll"); originalWidth = obj.width;
originalHeight = obj.height; objImg.style.width = originalWidth;
objImg.style.height = originalHeight; fmImgZoom.ZoomIn.disabled = false;
fmImgZoom.ZoomOut.disabled = false;
fmImgZoom.Original.disabled = false;
fmImgZoom.FitScreen.disabled = false;
fmImgZoom.btnView.disabled = false;
fmImgZoom.btnImgInfo.disabled = false;
fmImgZoom.FitScreen.click();
}function setFitScreen() { initImg(objImg);
}function setOriginal() { var intBodyWidth ;
var intBodyHeight ; intBodyWidth = document.body.clientWidth ;
intBodyHeight = document.body.clientHeight ; objImg.style.left = 0 ;
objImg.style.top = 0 ;
objImg.style.width = originalWidth;
objImg.style.height = originalHeight;
objImg.style.zoom = 1 ; objDivMain.style.width = intBodyWidth -100 ;
objDivMain.style.height = intBodyHeight - objTbMain.clientHeight - 100; fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom);
}function initImg(objCurrent) { var intBodyWidth ;
var intBodyHeight ; intBodyWidth = document.body.clientWidth ;
intBodyHeight = document.body.clientHeight ;
objTbMain.style.top = 0;
objTbMain.style.height = 20;
objTbMain.style.width = intBodyWidth;
objDivMain.style.left = 0 ;
objDivMain.style.height = intBodyHeight - objTbMain.clientHeight - 100;
objDivMain.style.width = intBodyWidth - 100; initZoom(objCurrent);
}function initZoom(obj){ var intObjWidth ;
var intObjHeight ;
var intDivHeight ;
var intZoomRatio ;
intDivHeight = objDivMain.style.pixelHeight;
intObjHeight = obj.style.pixelHeight;
intZoomRatio = intDivHeight / intObjHeight; obj.style.zoom = intZoomRatio ;
obj.style.top = 0;
obj.style.left = 0; fnWritePos (obj.style.left,obj.style.top,obj.style.zoom) ;
}function fnMouseDown(obj) {
ObjDrag=obj;
ObjDrag.setCapture();
ObjDrag.l=event.x-ObjDrag.style.pixelLeft;
ObjDrag.t=event.y-ObjDrag.style.pixelTop;
}function fnMouseMove() {
if(ObjDrag!=null) {
ObjDrag.style.left = event.x-ObjDrag.l;
ObjDrag.style.top = event.y-ObjDrag.t;
fnWritePos(ObjDrag.style.left,ObjDrag.style.top,ObjDrag.style.zoom);
}
}function fnMouseUp() {
if(ObjDrag!=null) {
ObjDrag.releaseCapture();
ObjDrag=null;
}
}function fnZoomIn() { objImg.style.zoom = parseFloat(objImg.style.zoom) + 0.01 ;
fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom);
}function fnZoomOut() { if(objImg.style.zoom>0.01){
objImg.style.zoom = parseFloat(objImg.style.zoom) - 0.01 ;
fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom);
}
}function fnDivMouseDown() {
if ( event.button == 2 && event.srcElement.id != "imgMain") {
objDivMenu.style.top = event.y;
objDivMenu.style.left = event.x;
objDivMenu.style.visibility = ""; oTextRange = objHrScroll.createTextRange() ;
oRcts = oTextRange.getClientRects();
oBndRct = objDivFlag.getBoundingClientRect();
objDivFlag.style.top = oRcts[0].top;
objDivFlag.style.left = oRcts[0].left + parseInt(objImg.style.zoom * 10) ;
objDivFlag.style.visibility = ""; }
if ( event.button == 1 && event.srcElement.id != "imgMain") {
objDivMenu.style.visibility = "hidden";
objDivFlag.style.visibility = "hidden";
}
}function fnWritePos(intLeft,intTop,intZoom) {
objbtnImgInfo.innerText = " ImgLeft:" + intLeft + " ImgTop:" + intTop + " ImgZoom:" + intZoom ;
}function fnSlipMouseDown(obj) {
ObjDrag=obj;
ObjDrag.setCapture();
ObjDrag.l = event.x - ObjDrag.style.pixelLeft;
ObjDrag.t = ObjDrag.style.pixelTop;
}function fnSlipMouseMove() {
if(ObjDrag!=null) { if(event.x >= oRcts[0].left && event.x <= oRcts[0].right ){
ObjDrag.style.left = event.x - objDivFlag.offsetWidth / 2;
} ObjDrag.t = ObjDrag.style.pixelTop;
var intCurrentPos = ObjDrag.style.pixelLeft - oRcts[0].left + objDivFlag.offsetWidth / 2;
var intPicZoom = intCurrentPos / 10;
objImg.style.zoom = intPicZoom;
fnWritePos(objImg.style.left,objImg.style.top,objImg.style.zoom);
}
}function fnSlipMouseUp() {
if(ObjDrag!=null) {
ObjDrag.releaseCapture();
ObjDrag=null;
}
}
function setDisplay() { if(objImg.style.visibility == ""){
objImg.style.visibility = "hidden";
}
else{
objImg.style.visibility = "";
}
}function fnContextMenu() {
window.event.returnValue=false;
}
//-->
</SCRIPT>
</HEAD><BODY oncontextmenu="fnContextMenu()">
<form name="fmImgZoom">
<TABLE id="tbMain" class="TBMain">
<TR>
<TD>
<input type="button" name="ZoomIn" value="ZoomIn" onclick="fnZoomIn()" disabled>
<input type="button" name="ZoomOut" value="ZoomOut" onclick="fnZoomOut()" disabled>
<input type="button" name="Original" value="Original" onclick="setOriginal()" disabled>
<input type="button" name="FitScreen" value="FitScreen" onclick="setFitScreen()" disabled>
<input type="button" name="btnView" value="hide/view" onclick="setDisplay()" disabled>
<input id="btnImgInfo" size="50" disabled>
</TD>
</TR>
</TABLE>
<div id="divMain" class="DivMain" onmousedown="fnDivMouseDown()">
<img src="22.jpg" id="imgMain" class="imgMain" onload="setInit(this)" onmousedown="fnMouseDown(this)" onmousemove="fnMouseMove()" onmouseup="fnMouseUp()" ></div>
<div id="divMenu" class="DivMenu" style="visibility:hidden"" onmousedown="fnMouseDown(this)" onmousemove="fnMouseMove()" onmouseup="fnMouseUp()" >
<TABLE class="TBMenu">
<TR>
<TD>10%</TD>
<TD><button id="HrScroll" class="HrScroll"><hr noshade></button> </TD>
<TD>1600%</TD>
</TR>
</TABLE>
</div>
<DIV ID="DivFlag" STYLE="position:absolute;visibility:hidden;width:1px;height:10px;z-index:99" onmousedown="fnSlipMouseDown(this)" onmousemove="fnSlipMouseMove()" onmouseup="fnSlipMouseUp()" onmouseover="this.style.cursor ='hand'" onmouseout="this.style.cursor=''">↑</DIV>
</form>
</BODY>
</HTML>