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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I would like to use the API to return all tweets that match my search query, but only tweets posted within the last five seconds. With Twitter's Search API, I can use the since_id to grab all tweets from a specific ID. However, I can't really see a good way to find the tweet ID to begin from. I'm also aware that you can use "since:" in the actual query to use a date, but you cannot enter a time. Can someone with Twitter API experience offer me any advice? Thanks for reading and your time! http://apiwiki.twitter.com/Search-API-Documentation

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have an application with a QGraphicsView window in the middle of the screen. I want to be able to zoom in and out using a mouse wheel scroll. Currently I have re-implemented QGraphicsView and overriden the mouse scroll function so that it doesn't scroll the image (like it does by default). void MyQGraphicsView::wheelEvent(QWheelEvent *event) { if(event->delta() > 0) { emit mouseWheelZoom(true); } else { emit mouseWheelZoom(false); } } so when I scroll, I'm emitting a signal true if mouse wheel forward false if mouse wheel back. I have then

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have the following code in the head-section: <script type='text/javascript' src='/js/jquery.mousewheel.min.js'></script> jQuery(function($) { $('#box').bind('mousewheel', function(event, delta) { var dir = delta > 0 ? 'Up' : 'Down', vel = Math.abs(delta); alert(dir + ' at a velocity of ' + vel); return false; }); }); In firefox 5 nothing happens at all. In Chrome 13 and IE 9 I get "Down at a velocity of NaN", no matter at which direction I scroll. Thanks for your help! 回答1: It means that delta is undefined which probably means you didn't

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: The final output should be like image(HELLO WORLD): Here is what i am doing:- $im = imagecreate ( 400 , 400 ); $txtcol = imagecolorallocate ( $im , 0xFF , 0x00 , 0x00 ); $size = 20 ; $txt = 'DUMMY TEXT' ; $font = './font/Capriola-Regular.ttf' ; /*two points for base line*/ $x1 = 50 ; $x2 = 300 ; $y1 = 150 ; $y2 = 170 ; /*bof finding line angle*/ $delta_x = $x2 - $x1 ; $delta_y = $y2 - $y1 ; $texangle = ( rad2deg ( atan2 ( $delta_y , $delta_x )) * 180 / M_PI )- 360 ; /*eof finding the line angle*/ imageline ( $im , $x1 , $y1 , $x2 ,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: From: http://docs.python.org/py3k/library/datetime.html#timedelta-objects A timedelta object represents a duration, the difference between two dates or times. So why i get error with this: >>> from datetime import datetime, timedelta, time >>> datetime.now() + timedelta(hours=12) datetime.datetime(2012, 9, 17, 6, 24, 9, 635862) >>> datetime.now().date() + timedelta(hours=12) datetime.date(2012, 9, 16) >>> datetime.now().time() + timedelta(hours=12) Traceback (most recent call last): File " ", line 1, in TypeError: unsupported operand type(s)

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: What is the simplest way to create AffineTransform which maps coordinates from one rectangle to another (float/double rectangles are given)? UPDATE 1 Rectangles can be absolutely different. For example [(0,0)-(1,1)] and [(150,-14)-(-1000,-14.1)]. And transformation should transform uniformly. For example, rectangle corners should be transformed one to one. For example coordinates (0,0) should turn to (150,-14). UPDATE 2 I need AffineTransform object, not just calculation. Because I want to apply it to Graphics object. Also I would like to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How can I pan and zoom using fabricjs? I've tried using the methods zoomToPoint and setZoom but they do not work for panning. Once I start using different zoom points I start having trouble. $('#zoomIn').click(function(){ canvas.setZoom(canvas.getZoom() * 1.1 ) ; }) ; $('#zoomOut').click(function(){ canvas.setZoom(canvas.getZoom() / 1.1 ) ; }) ; $('#goRight').click(function(){ //Need to implement }) ; $('#goLeft').click(function(){ //Need to implement }) ; http://jsfiddle.net/hdramos/ux16013L/ 回答1: Solved it using: relativePan() absolutePan(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a dataframe column, data['time taken'] ; 02:08:00 02:05:00 02:55:00 03:42:00 01:12:00 01:46:00 03:22:00 03:36:00 How do I get the output in the form of minutes like below? 128 125 175 222 72 106 202 216 回答1: You could try to convert it to DatetimeIndex In [58]: time = pd.DatetimeIndex(df['time taken']) In [59]: time.hour * 60 + time.minute Out[59]: array([128, 125, 175, 222, 72, 106, 202, 216], dtype=int32) 回答2: Assuming this is a string column you can use the str.split method: In [11]: df['time taken'].str.split(':') Out[11]: 0 [02,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a question about junit assertEquals to test double values. Reading API doc I can see: @Deprecated public static void assertEquals(double expected, double actual) Deprecated. Use assertEquals(double expected, double actual, double epsilon) instead What does epsilon value mean? (Epsilon is a letter in the Greek alphabet, right?). Can Someone explain to me how to use it? 回答1: Epsilon is the value that the 2 numbers can be off by. So it will assert to true as long as Math.abs(expected - actual) 回答2: Which version of JUnit is this? I've

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm currently developing a horizontally website that can enable my mouse scroll to scroll to the left and right... My jQuery included sequence: My code as below: My "body" CSS as below: html { width:100%; overflow-y:hidden; overflow-x: scroll; } body{ } For right now the code that I doubt is: which is crashing with the mouse scroll I think. The mouse scroll is working, the only problem is the mouse scroll is not smooth, sometimes stop there, sometimes cant even move, is not my mouse problem. I'm not sure what's cause this because I tried to