使用d3绘制时间轴图表，不可避免的涉及到动态变动时间刻度，根据业务需求需要调整查看不同的时间粒度数据。如果后台数据非连续数据，需要前端自己处理的话，就得自己根据时间范围创建时间刻度数据。
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以上方法，亲测有效。注意一定要使用固定的时间作为基准点，否则以天为刻度时，会有时区差异。以秒和分钟作为时间粒度，没问题，因为是更小一级的单位，进行整除运算没有问题。
时间桶的概念，就是以该间隔作为时间刻度
为什么我会前端处理时间轴数据？
相信如果使用过d3进行时间轴图表定制的同学，一定使用过 d3.scaleTime 或者 d3.scaleUtc 进行时间轴比例尺的绘制，它的智能之处，就是可以根据你的时间范围，动态的创建出适合当前显示区域坐标系的时间刻度数据，就算你的数据是不连续的，也没有问题。但是结合brush刷取api进行使用的时候就用问题了，当初始化数据不符合具体的刷取机制，进行刷取范围的默认设置，就会出现绘制图表不连续，移动刷取框更新图表错误的问题。（具体原因未知，有大神有相应的认知可以在评论群告知一波，非常感谢）
基于以上问题，我通过自己创建时间刻度，使用 d3.scaleLinear 线性比例尺，结合brush进行缩放x轴，就没有任何问题，因为我的数据处理后都是连续的，每个时间刻度已经固定，规避了上面的问题。
javascript 自带有个对象(构造函数)，Date().下面是代码：
var myDate = new Date(); //实例一个时间对象；
myDate.getFullYear(); //获取系统的年；
myDate.getMonth()+1; //获取系统月份，由于月份是从0开始计算，所以要加1
myDate.getDate(); // 获取系统日，
myDate.getHours(); //获取系统时，
myDate.getMinutes(); //分
myDate.getSeconds(); //秒
我这有一个ASP.NET做的软件里有你要的JS脚本.
title- -选择日期 - -/title
script
//*************************日历控件***************************
// cody by [STAR].sjz 2003-10-31
// 说明:返回值为 一个字符串
// 格式如下:
// 使用方法 :
// var dataString = showModalDialog("calendar.htm", "dd日mm月yyyy年" ,"dialogWidth:286px;dialogHeight:221px;status:no;help:no;");
var userFormatString;
if(window.dialogArguments ==null)
{
userFormatString = "yyyy-mm--dd";
}
else
{
userFormatString = window.dialogArguments;
}
with(new Date()){
var Nyear = getYear();
var Nmonth = getMonth() +1;
var Ndate = getDate();
}
window.returnValue = new dataObj(Nyear,Nmonth,Ndate ).getDateString(userFormatString);
window.document.onclick = function(){
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.parentNode.className.replace(/Ctable/ig,"star") == "star" )
{
try{
window.currentActiveItem.runtimeStyle.cssText = "";
}
catch(e){ }
Nyear = obj.id.split("-")[0];
Nmonth = obj.id.split("-")[1];
Ndate = obj.id.split("-")[2];
window.currentActiveItem = obj;
window.currentSelectDate = window.currentActiveItem.id;
window.currentActiveItem.runtimeStyle.cssText = "background:url() no-repeat 12px 6px;color:#000;padding-top:1px;font-weight:bold";
}
window.ftime.Text1.value="";
//window.ftime.Text1.value= window.currentSelectDate+" "+window.ftime.Select1.options[window.ftime.Select1.selectedIndex].text+":"+window.ftime.Select2.options[window.ftime.Select2.selectedIndex].text;
window.ftime.Text1.value= window.currentSelectDate;
window.returnValue = window.ftime.Text1.value;
// window.ftime.Text1.value= window.currentSelectDate;
//window.ftime.Text1.value=window.ftime.Text1.value+window.ftime.Select1.options[window.ftime.Select1.selectedIndex].text;
}
function dataObj(year,month,date)
{
this.year = year
this.month = month
this.date = date
this.getDateString =
function(formatString)
{
return formatString.replace(/yyyy/ig , this.year).replace(/mm/ig , this.month).replace(/dd/ig , this.date)
}
}
window.onload = function(){
window.document.attachEvent("onclick" , doCmd);
window.document.attachEvent("onmouseover" , buttonOver);
window.document.attachEvent("onmouseout" , buttonOut);
window.document.attachEvent("onmousedown" , buttonDown);
window.document.attachEvent("onmouseup" , buttonUp);
window.document.attachEvent("ondblclick" ,
function()
{
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.parentNode.className.replace(/Ctable/ig,"star") == "star" )
{
var mydate = new dataObj(obj.id.split("-")[0] , obj.id.split("-")[1] , obj.id.split("-")[2] );
window.returnValue = window.ftime.Text1.value;
window.close();
}
}
);
document.all.titleYear.innerHTML=TranYearMonthTitle(Nyear,Nmonth);
document.all.weekNameBox.insertAdjacentHTML("afterBegin",makeWeekNameHtmlStr());
document.all.calendarBox.innerHTML=makeCalendarHtmlStr(Nyear,Nmonth);
window.currentSelectDate = starCaTran(Nyear,Nmonth,Ndate);
window.document.all.calendarBox.show = show;
window.currentActiveItem = window.document.getElementById(currentSelectDate);
if( window.currentActiveItem )
window.currentActiveItem.click();
window.document.all.calendarBox.show();
today=new Date();
window.ftime.Select1.selectedIndex=today.getHours();
window.ftime.Select2.selectedIndex=today.getMinutes();
// window.ftime.Text1.value= window.currentSelectDate+" "+window.ftime.Select1.options[window.ftime.Select1.selectedIndex].text+":"+window.ftime.Select2.options[window.ftime.Select2.selectedIndex].text;
window.ftime.Text1.value= window.currentSelectDate;
window.returnValue = window.ftime.Text1.value;
}
function starCalendar(year,month){
this.year = year;
this.month = month;
this.monthTable = function(){
var aMonth=new Array();
for(i=1;i7;i++)aMonth[i]=new Array(i);
var dCalDate=new Date(this.year, this.month-1, 1);
var iDayOfFirst=dCalDate.getDay();
var iDaysInMonth=new Date(this.year, this.month, 0).getDate();
var iOffsetLast=new Date(this.year, this.month-1, 0).getDate()-iDayOfFirst+1;
var iDate = 1;
var iNext = 1;
for (d = 0; d 7; d++)
aMonth[1][d] = (diDayOfFirst)?(-iDayOfFirst+d+1):iDate++;
for (w = 2; w 7; w++)
for (d = 0; d 7; d++)
aMonth[w][d] = iDate++;
return aMonth;
}
}
function makeWeekNameHtmlStr(){
var tmpStr="";
var weekName = ["日","一","二","三","四","五","六"];
for(var i=0;i7;i++)tmpStr+="span class=weekName"+weekName[i]+"/span";
return tmpStr;
}
function makeCalendarHtmlStr(year,month){
window.theCalendar = new starCalendar(year,month);
var theCaArr = theCalendar.monthTable();
var theDaysInMonth = new Date(year, month, 0).getDate();
var theCaHtml = "div class=Ctable";
for(var i=1;i7;i++)
for(var j=0;j7;j++)
theCaHtml = theCaHtml+"span class="+( (theCaArr[i][j]1 || theCaArr[i][j]theDaysInMonth)?"OtherMonthDate":"Cdate")+" id="+starCaTran(year,month,theCaArr[i][j])+""+starCaTran(year,month,theCaArr[i][j]).split("-")[2]+"/span";
return theCaHtml+"/div";
}
function starCaTran(year,month,date){
with(new Date(year,month-1,date))
return getYear() + "-" +(getMonth()+1) + "-" + getDate();
}
function TranYearMonthTitle(year,month){
with(new Date(year,month-1,1))
return "span style='text-decoration:underline;cursor:hand;font-weight:bold;padding:1 2 0 1;width:40px;' onclick=showMore(1940,2050,this.innerHTML) onmouseover=\"this.runtimeStyle.cssText='color:#fff;'\" onmouseout=\"this.runtimeStyle.cssText=''\" onpropertychange=showC()" + getYear() + "/span" + "年" + "span style='text-decoration:underline;cursor:hand;font-weight:bold;padding:1 2 0 1;width:20px;' onclick=showMore(1,12,this.innerHTML) onmouseover=\"this.runtimeStyle.cssText='color:#fff;'\" onmouseout=\"this.runtimeStyle.cssText=''\" onpropertychange=showC()" + (getMonth()+1) + "/span" + "月" ;
}
function showC(){
if(event.propertyName != "innerHTML")return;
window.theCalendar.year = new Number(document.all.titleYear.getElementsByTagName("span")[0].innerHTML);
window.theCalendar.month = new Number(document.all.titleYear.getElementsByTagName("span")[1].innerHTML);
window.document.all.calendarBox.innerHTML=makeCalendarHtmlStr(window.theCalendar.year,window.theCalendar.month);
window.document.all.calendarBox.show = show;window.document.all.calendarBox.show();
}
function showMore(starNum,endNum,selectedValue){
var obj = window.event.srcElement;
var selectedIndex = selectedValue - starNum;
if(obj.selectBox){
obj.selectBox.selectedIndex = selectedIndex;
return obj.selectBox.show(document.all.calendarBox.offsetHeight + document.all.weekNameBox.offsetHeight );
}
var selectBox = window.document.createElement("div");
selectBox.className = "selectBox";
selectBox.style.height = 0;
selectBox.style.top = window.event.clientY - window.event.offsetY + window.event.srcElement.offsetHeight;
selectBox.style.left = window.event.clientX - window.event.offsetX ;
selectBox.show = showBox;
selectBox.selectedIndex = selectedIndex;
selectBox.onclick = function(){
var selectedObj = window.event.srcElement;
if( "nobr" == selectedObj.tagName.toLowerCase() selectBox.contains(selectedObj))
{
if(obj.innerHTML != selectedObj.innerHTML)obj.innerHTML = selectedObj.innerHTML;
}
}
selectBox.onlosecapture = alert
var iString = "";
for(var i=starNum;i=endNum;i++){
iString += "nobr onmouseover=\"this.parentNode.getElementsByTagName('nobr')[this.parentNode.selectedIndex].style.cssText='';this.style.cssText='background-color:#00006C;color:#fff;'\" onmouseout=this.style.cssText=''"+i+"/nobrbr"
}
selectBox.insertAdjacentHTML ("afterBegin",iString);
window.document.body.appendChild(selectBox);
obj.selectBox = selectBox;
obj.selectBox.show(document.all.calendarBox.offsetHeight + document.all.weekNameBox.offsetHeight );
}
function showBox(iHeight)
{
var box = this;
box.style.height =1;
box.style.display = "block";
window.clearInterval(box.timeHandle);
box.timeHandle = window.setInterval(interValHandle,1);
var s = 0,t =1 ;
function interValHandle()
{
box.scrollTop=1000000;
s = s + t*t;
t += 0.5;
box.style.height = parseInt(box.style.height) + Math.floor(s);
box.style.width = 65 / iHeight * box.offsetHeight;
if( box.offsetHeight iHeight )
{
window.clearInterval(box.timeHandle);
box.style.height = iHeight;
box.scrollTop = box.childNodes[0].offsetHeight*box.selectedIndex;
box.getElementsByTagName("nobr")[box.selectedIndex].style.cssText='background-color:#00006C;color:#fff;';
window.document.attachEvent("onclick",
box.hide=function()
{
box.style.display = "none";
window.document.detachEvent("onclick",box.hide)
}
);
}
}
}
/script
script
function buttonOver(){
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.className.replace(/controlButton/ig,"star") == "star" )
{
obj.runtimeStyle.cssText="border-color:#fff #606060 #808080 #fff;padding:3 0 0 0 ";
}
if(obj.tagName.toLowerCase() == "span" obj.parentNode.className.replace(/Ctable/ig,"star") == "star" )
{
obj.style.backgroundColor = "#fff";
}
}
function buttonOut(){
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.className.replace(/controlButton/ig,"star") == "star" )
{
obj.runtimeStyle.cssText = "";
}
if(obj.tagName.toLowerCase() == "span" obj.parentNode.className.replace(/Ctable/ig,"star") == "star" )
{
window.setTimeout(function(){obj.style.backgroundColor = ""; },300);
}
}
function buttonDown(){
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.className.replace(/controlButton/ig,"star") == "star" )
{
obj.setCapture();
obj.runtimeStyle.borderColor="#808080 #fefefe #fefefe #808080";
}
}
function buttonUp(){
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.className.replace(/controlButton/ig,"star") == "star" )
{
obj.releaseCapture();
obj.runtimeStyle.cssText ="";
}
}
function doCmd(){
var obj = window.event.srcElement;
if(obj.tagName.toLowerCase() == "span" obj.className.replace(/controlButton/ig,"star") == "star" )
{
switch(obj.getAttribute("cmd"))
{
case "py":
window.document.all.titleYear.innerHTML=window.TranYearMonthTitle(window.theCalendar.year-1,window.theCalendar.month);
window.document.all.calendarBox.innerHTML=makeCalendarHtmlStr(window.theCalendar.year-1,window.theCalendar.month);
break;
case "pm":
window.document.all.titleYear.innerHTML=window.TranYearMonthTitle(window.theCalendar.year,window.theCalendar.month-1);
window.document.all.calendarBox.innerHTML=makeCalendarHtmlStr(window.theCalendar.year,window.theCalendar.month-1);
break;
case "nm":
window.document.all.titleYear.innerHTML=window.TranYearMonthTitle(window.theCalendar.year,window.theCalendar.month+1);
window.document.all.calendarBox.innerHTML=makeCalendarHtmlStr(window.theCalendar.year,window.theCalendar.month+1);
break;
case "ny":
window.document.all.titleYear.innerHTML=window.TranYearMonthTitle(window.theCalendar.year+1,window.theCalendar.month);
window.document.all.calendarBox.innerHTML=makeCalendarHtmlStr(window.theCalendar.year+1,window.theCalendar.month);
break;
}
window.document.all.calendarBox.show();
window.currentSelectDate = starCaTran(Nyear,Nmonth,Ndate);
window.currentActiveItem = window.document.getElementById(currentSelectDate);
if( window.currentActiveItem )window.currentActiveItem.runtimeStyle.cssText = "background:url(choiceit.gif) no-repeat 12px 6px;color:#000;padding-top:1px;font-weight:bold";
}
}
function show()
{
var box = this;
window.clearTimeout(box.timeHandle);
var CdateBoxs = this.getElementsByTagName("span");
for(var i=0;iCdateBoxs.length;i++)
{
CdateBoxs[i].defaultValue = new Number( CdateBoxs[i].innerHTML );
CdateBoxs[i].innerHTML = 0;
}
showDate();
function showDate(){
for(var i=0;iCdateBoxs.length;i++){
if( new Number( CdateBoxs[i].innerHTML ) + 1 = new Number( CdateBoxs[i].defaultValue ) )
CdateBoxs[i].innerHTML = new Number( CdateBoxs[i].innerHTML ) + 1
}
box.timeHandle = window.setTimeout(showDate,1);
}
this.show = show1
}
function show1()
{
var box = this;
window.clearTimeout(box.timeHandle);
var CdateBoxs = this.getElementsByTagName("span");
for(var i=0;iCdateBoxs.length;i++)CdateBoxs[i].style.display = "none";
showDate(CdateBoxs[0]);
function showDate(obj){
if( !obj )return;
obj.style.display = "inline";
box.timeHandle = window.setTimeout(function(){showDate(obj.nextSibling);},1);
}
this.show = show
}
/*
function show()
{
}
*/
/script
style *{ font:12px; letter-spacing:0px; }
body{ background-color:#e5eaa0; overflow:hidden; margin:0; border:0px; }
#titleYear{ text-align:center; padding-top:3px; width:120px; height:20px; border:solid #E5E9F2; border-width:0px 1px 1px 0px; background-color:#97ca00; color:#000; cursor:default; }
#weekNameBox{ width:282px; border-bottom:0; }
.weekName{ text-align:center; padding-top:4px; width:40px; height:20px; border:solid #E5E9F2; border-width:0px 1px 1px 0px; background-color:#C0D0E8; color:#243F65; cursor:default; }
.controlButton{ font-family: Webdings; font:9px; text-align:center; padding-top:2px; width:40px; height:20px; border:solid #E5E9F2; border-width:0px 1px 1px 0px; background-color:#95ca00; color:#243F65; cursor:default; }
.Ctable{ width:282px; margin-bottom:20px; }
.Ctable span{ font:9px verdana; font-weight:bold; color:#243F65; text-align:center; padding-top:4px; width:40px; height:26px; border:solid #C0D0E8; border-width:0px 1px 1px 0px; cursor:default; }
.Cdate{ background-color:#b4dad6; }
.Ctable span.OtherMonthDate{ color:#999; background-color:#f6f6f6; }
.selectBox{ cursor:hand; font:9px verdana; width:80px; position:absolute; border:1px solid #425E87; overflow-y:scroll; overflow-x:hidden; background-color:#fff; FILTER:progid:DXImageTransform.Microsoft.Shadow(Color=#999999,offX=10,offY=10,direction=120,Strength=5); SCROLLBAR-FACE-COLOR: #E5E9F2; SCROLLBAR-HIGHLIGHT-COLOR: #E5E9F2; SCROLLBAR-SHADOW-COLOR: #A4B9D7; SCROLLBAR-3DLIGHT-COLOR: #A4B9D7; SCROLLBAR-ARROW-COLOR: #000000; SCROLLBAR-TRACK-COLOR: #eeeee6; SCROLLBAR-DARKSHADOW-COLOR: #ffffff; }
.selectBox nobr{ padding:0px 0px 2px 5px; width:100%; color:#000; letter-spacing:2px; text-decoration:none; }
/style
body onselectstart="return false"
div style="MARGIN:0px"
div id="controlBar"span class="controlButton" cmd="py" title="上一年"33/spanspan class="controlButton" cmd="pm" title="上一月"3/spanspan id="titleYear"/spanspan class="controlButton" cmd="nm" title="下一月"4/spanspan class="controlButton" cmd="ny" title="下一年"44/span/div
div id="weekNameBox"/div
div id="calendarBox"/div
/div
form id=ftime
font
SELECT id="Select1" name=shour
OPTION00/OPTION
OPTION01/OPTION
OPTION02/OPTION
OPTION03/OPTION
OPTION04/OPTION
OPTION05/OPTION
OPTION06/OPTION
OPTION07/OPTION
OPTION08/OPTION
OPTION09/OPTION
OPTION10/OPTION
OPTION11/OPTION
OPTION12/OPTION
OPTION13/OPTION
OPTION14/OPTION
OPTION15/OPTION
OPTION16/OPTION
OPTION17/OPTION
OPTION18/OPTION
OPTION19/OPTION
OPTION20/OPTION
OPTION21/OPTION
OPTION22/OPTION
OPTION23/OPTION
OPTION00/OPTION
/SELECTb点/b
SELECT id="Select2" name=sminute
OPTION00/OPTION
OPTION01/OPTION
OPTION02/OPTION
OPTION03/OPTION
OPTION04/OPTION
OPTION05/OPTION
OPTION06/OPTION
OPTION07/OPTION
OPTION08/OPTION
OPTION09/OPTION
OPTION10/OPTION
OPTION11/OPTION
OPTION12/OPTION
OPTION13/OPTION
OPTION14/OPTION
OPTION15/OPTION
OPTION16/OPTION
OPTION17/OPTION
OPTION18/OPTION
OPTION19/OPTION
OPTION20/OPTION
OPTION21/OPTION
OPTION22/OPTION
OPTION23/OPTION
OPTION24/OPTION
OPTION25/OPTION
OPTION26/OPTION
OPTION27/OPTION
OPTION28/OPTION
OPTION29/OPTION
OPTION30/OPTION
OPTION31/OPTION
OPTION32/OPTION
OPTION33/OPTION
OPTION34/OPTION
OPTION35/OPTION
OPTION36/OPTION
OPTION37/OPTION
OPTION38/OPTION
OPTION39/OPTION
OPTION40/OPTION
OPTION41/OPTION
OPTION42/OPTION
OPTION43/OPTION
OPTION44/OPTION
OPTION45/OPTION
OPTION46/OPTION
OPTION47/OPTION
OPTION48/OPTION
OPTION49/OPTION
OPTION50/OPTION
OPTION51/OPTION
OPTION52/OPTION
OPTION53/OPTION
OPTION54/OPTION
OPTION55/OPTION
OPTION56/OPTION
OPTION57/OPTION
OPTION58/OPTION
OPTION59/OPTION
/SELECTb分/b
INPUT id="Text1" type="text" name="Text1" value="111"/FONT
/form
/body
拷贝下来试试! 行的话给分啊 呵呵:)
楼主用的什么变成语言啊?如果是ASP,NET就很简单啊,我就是把这个脚本做成单独的页面,直接在其他页面调用的啊.如果是别的语言,你就把JS脚本函数弄过去.
JSP我没用过,把我这个页面直接弄过去,在其他页面调用不行吗?这个就是JS+HTML啊.应该可以吧.当需要调用的时候不调用脚本,调用这个网页,让程序弹出这个网页,设置网页的大小(就像弹出来一个小日历一样)就行.和我这的效果一样.
我照你说的改了改,不太好用,呵呵.只能帮这么多了,你看看吧.我可以担保给你的程序绝对可用.请别人帮着把我这个改了吧.谁改的好就给谁分吧:)
javascript有绘制矢量图的功能。
JavaScript一种直译式脚本语言，是一种动态类型、弱类型、基于原型的语言，内置支持类型。它的解释器被称为JavaScript引擎，为浏览器的一部分，广泛用于客户端的脚本语言，最早是在HTML（标准通用标记语言下的一个应用）网页上使用，用来给HTML网页增加动态功能。
在1995年时，由Netscape公司的Brendan Eich，在网景导航者浏览器上首次设计实现而成。因为Netscape与Sun合作，Netscape管理层希望它外观看起来像Java，因此取名为JavaScript。但实际上它的语法风格与Self及Scheme较为接近。
为了取得技术优势，微软推出了JScript，CEnvi推出ScriptEase，与JavaScript同样可在浏览器上运行。为了统一规格，因为JavaScript兼容于ECMA标准，因此也称为ECMAScript。
