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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: Given a flex container figure { display: flex; align-items: flex-start; } and a 300x300 image with its flex-basis set at half its intrinsic width: figure img { flex: 0 0 150px; } Chrome 41 and Safari 7 ignore the aspect ratio and display it as 150px x 300px: Firefox 35 on the other hand keeps the intrinsic aspect ratio intact: figure { display: -webkit-box; display: -moz-box; display: box; display: -webkit-flex; display: -moz-flex; display: -ms-flexbox; display: flex; -webkit-box-align: start; -moz-box-align: start; box-align: start; -webkit

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 Unit testing, Black-box testing and White-Box testing? I googled but all the explanation I found was very technical. Can anyone answer this question in a simple way with an appropriate example? 回答1: In black box testing, you don't care how the internals of the thing being tested work. You invoke the exposed API and check the result; you don't care what the thing being tested did to give you the result. In white box testing, you do care how the internals of the thing being tested work. So instead of just checking the output of your

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: When I say box I am talking about shipping boxes. I have a number of random sized, small items that I need to pack into as few boxes as possible. I need to know what box sizes are optimal. All items are rectangular prisms . It's easy to exclude a box size for an item which is too large to fit. I know the box sizes (they are the available box sizes which I have in-stock) Items can be positioned horizontally or vertically, not diagonal. As many boxes as required can be used. The goal is to use as few boxes as possible. Multiple box sizes may

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 link and when user hover mouse over it, it should display a box (div) under the link. The box should overlay whatever is under it. How can I do it using css or javascript? 回答1: I have created a sample here . You can modify from there to suit your needs. 回答2: You have an absolutely positioned div that is hidden, and a child of the link. Then, when you hover over the link, you should unhide the div. I can't provide full CSS, and I haven't tested this, but that should get you started. You'll have to play around with the positioning and

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: Either I am an idiot or this was an egregious oversight on the part of the Google Maps team. I am attempting to trigger a places search request on a button click event in conjunction with the standard enter keypress event (which is currently working fine). I have combed through the documentation related to the Google Places search box and have found no sutiable solution. Because of confidentiality reasons I am using the example from the demo. function initialize() { var map = new google.maps.Map(document.getElementById('map-canvas'), {

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: Given a center point, width, height and angle forming an OBB, how can I find if a given point P is inside the OBB? Thanks 回答1: I take it that the wrinkle in your problem is that the bounding box can be rotated? If so, the easiest solution to me seems to be to do all calculations in the rotated coordinate plane, centered on the center of the bounding box. To calculate the coordinates of the point relative to these axes: newy = sin(angle) * (oldy - centery) + cos(angle) * (oldx - centerx); newx = cos(angle) * (oldx - centerx) - sin(angle) *

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: The boxes were working fine. Then I halted one (the only one running at the time) and now I can't get either of them back up. Running vagrant up [name] gives me the following error, regardless of which I pick or whether I leave it at vagrant up for them both to come up: There are errors in the configuration of this machine. Please fix the following errors and try again: vm: * A box must be specified. Running latest version of Vagrant (1.7.4). Here is my Vagrantfile in its entirety, comments included (just in case): # Search for boxes here:

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: Suppose you have a 2D numpy array with some random values and surrounding zeros. Example "tilted rectangle": import numpy as np from skimage import transform img1 = np.zeros((100,100)) img1[25:75,25:75] = 1. img2 = transform.rotate(img1, 45) Now I want to find the smallest bounding rectangle for all the nonzero data. For example: a = np.where(img2 != 0) bbox = img2[np.min(a[0]):np.max(a[0])+1, np.min(a[1]):np.max(a[1])+1] What would be the fastest way to achieve this result? I am sure there is a better way since the np.where function takes

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: I found this famous dp problem in many places, but I can not figure out how to solve. You are given a set of n types of rectangular 3-D boxes, where the i^th box has height h(i), width w(i) and depth d(i) (all real numbers). You want to create a stack of boxes which is as tall as possible, but you can only stack a box on top of another box if the dimensions of the 2-D base of the lower box are each strictly larger than those of the 2-D base of the higher box. Of course, you can rotate a box so that any side functions as its base.

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 saw that it's possible to convert a Docker image into a Vagrant box. Is there a way to convert a Vagrant box into a Docker image? 回答1: I replayed this with EC2 boxes and Virtualbox boxes in my Github project blacklabelops/centos . I have prepared a Vagrantfile with the necessary installation and you can try it yourself with your Vagrant boxes. EC2 boxes: Create and provision an AMI image with https://github.com/katzj/ami-creator - Skripts in my repository. Afterwards use Guestfish in order to extract the image into a tarball. - Skripts in