在处理自定义日历时,我无法弄清楚如何找到与任何其他时段重叠的时段。
时隙从0到720(上午9点到晚上9点,每个像素代表一分钟)。
var events = [
{id : 1, start : 0, end : 40}, // an event from 9:00am to 9:40am
{id : 2, start : 30, end : 150}, // an event from 9:30am to 11:30am
{id : 3, start : 20, end : 180}, // an event from 9:20am to 12:00am
{id : 4, start : 200, end : 230}, // an event from 12:20pm to 12:30pm
{id : 5, start : 540, end : 600}, // an event from 6pm to 7pm
{id : 6, start : 560, end : 620} // an event from 6:20pm to 7:20pm
];
每个时段一小时,例如9到10,10到11,11到12等等。
在上面的示例中,9-10
开始时间有三个事件(id:1,2,3)重叠:9:00
,9:30
和9:20
。重叠的其他事件是6
到7
(id:5,6)的int时间段,6
和6:20
开始次。标识为4
的事件在12
到1
的时间段内没有任何重叠事件。
我正在寻找一种方法来获取所有重叠的事件ID以及特定时间段内的事件数量,这是预期的输出:
[
{id:1, eventCount: 3},
{id:2, eventCount: 3},
{id:3, eventCount: 3},
{id:5, eventCount: 2},
{id:6, eventCount: 2}
]
对于ID(1到3),时间段为3
到9
和10
个事件的2
个事件为6
到{ {1}}。
我创建了这个公式,将时间数转换为实际时间:
7
这是我到目前为止所做的:
var start_time = new Date(0, 0, 0, Math.abs(events[i].start / 60) + 9, Math.abs(events[i].start % 60)).toLocaleTimeString(),
var end_time = new Date(0, 0, 0, Math.abs(events[i].end / 60) + 9, Math.abs(events[i].end % 60)).toLocaleTimeString();
答案 0 :(得分:5)
来自我的jquery-week-calendar commit,我就是这样做的:
_groupOverlappingEventElements: function($weekDay) {
var $events = $weekDay.find('.wc-cal-event:visible');
var complexEvents = jQuery.map($events, function (element, index) {
var $event = $(element);
var position = $event.position();
var height = $event.height();
var calEvent = $event.data('calEvent');
var complexEvent = {
'event': $event,
'calEvent': calEvent,
'top': position.top,
'bottom': position.top + height
};
return complexEvent;
}).sort(function (a, b) {
var result = a.top - b.top;
if (result) {
return result;
}
return a.bottom - b.bottom;
});
var groups = new Array();
var currentGroup;
var lastBottom = -1;
jQuery.each(complexEvents, function (index, element) {
var complexEvent = element;
var $event = complexEvent.event;
var top = complexEvent.top;
var bottom = complexEvent.bottom;
if (!currentGroup || lastBottom < top) {
currentGroup = new Array();
groups.push(currentGroup);
}
currentGroup.push($event);
lastBottom = Math.max(lastBottom, bottom);
});
return groups;
}
周围有一些特定于组件的噪音,但你会得到逻辑:
currentGroup
)是groups
- 数组 soo ...你的代码可能看起来很相似(顺便说一下,不需要使用真正的date
- 实例)
events.sort(function (a, b) {
var result = a.start - b.start;
if (result) {
return result;
}
return a.end - b.end;
});
var groups = new Array();
var currentGroup;
var lastEnd = -1;
jQuery.each(events, function (index, element) {
var event = element;
var start = event.start;
var end = event.end;
if (!currentGroup || lastEnd < start) {
currentGroup = new Array();
groups.push(currentGroup);
}
currentGroup.push(event);
lastEnd = Math.max(lastEnd, end);
});
return groups;
soo ......你不愿意把自己的精力投入你的问题......好吧
var output = new Array();
jQuery.each(groups, function (index, element) {
var group = element;
if (group.length <= 1) {
return;
}
jQuery.each(group, function (index, element) {
var event = element;
var foo = {
'id': event.id,
'eventCount': group.length
};
output.push(foo);
});
});
答案 1 :(得分:4)
对我来说,为每个开始和结束事件使用时间戳更容易,这样您就可以直接使用它们或将它们更改为日期对象。要获取值,请为每个开始和结束创建一个日期对象,然后:
var a.start = startDate.getTime();
var a.end = endDate.getTime();
重叠:
if (a.start <= b.start && a.end > b.start ||
a.start < b.end && a.end >= b.end) {
// a overlaps b
}
如果您愿意,可以将它们保留为日期对象,上述内容也可以正常工作。
好的,这是一个有效的例子:
假设名义日期为2012-05-15,则事件数组如下所示:
// Use iso8601 like datestring to make a local date object
function getDateObj(s) {
var bits = s.split(/[- :]/);
var date = new Date(bits[0], bits[1] - 1, bits[2]);
date.setHours(bits[3], bits[4], 0);
return date;
}
var events = [
{id: 1, start: getDateObj('2012-05-15 09:00'), end: getDateObj('2012-05-15 09:30')},
{id: 2, start: getDateObj('2012-05-15 09:30'), end: getDateObj('2012-05-15 11:30')},
{id: 3, start: getDateObj('2012-05-15 09:20'), end: getDateObj('2012-05-15 12:00')},
{id: 4, start: getDateObj('2012-05-15 12:20'), end: getDateObj('2012-05-15 12:30')},
{id: 5, start: getDateObj('2012-05-15 18:00'), end: getDateObj('2012-05-15 19:00')},
{id: 6, start: getDateObj('2012-05-15 18:20'), end: getDateObj('2012-05-15 19:20')}
];
function getOverlappingEvents(eventArray) {
var result = [];
var a, b;
// Sort the event array on start time
eventArray.sort(function(a, b) {
return a.start - b.start;
});
// Get overlapping events
for (var i=0, iLen=eventArray.length - 1; i<iLen; i++) {
a = eventArray[i];
b = eventArray[i + 1];
if ((a.start <= b.start && a.end > b.start) ||
(a.start < b.end && a.end >= b.end) ) {
result.push([a.id, b.id]);
}
}
return result;
}
// Run it
alert(getOverlappingEvents(events).join('\n')); // 1,3 2,3 5,6
答案 2 :(得分:1)
这里的代码可以满足您的需求。正如其他人所提到的那样,通过存储日期对象可能会更好,但这是一个不同的问题。
function getOverlaps(events) {
// sort events
events.sort(function (a, b) {
return a.start - b.start;
});
var results = [];
for (var i = 0, l = events.length; i < l; i++) {
var oEvent = events[i];
var nOverlaps = 0;
for (var j = 0; j < l; j++) {
var oCompareEvent = events[j];
if (oCompareEvent.start <= oEvent.end && oCompareEvent.end > oEvent.start || oCompareEvent.end <= oEvent.start && oCompareEvent.start > oEvent.end) {
nOverlaps++;
}
}
if (nOverlaps > 1) {
results.push({
id: oEvent.id,
eventCount: nOverlaps,
toString: function () {
return "[id:" + this.id + ", events:" + this.eventCount + "]"
}
});
}
}
return results;
}