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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'm loading an OBJ file using Three.js and OBJLoader.js. This returns a Three.Object3D object, which has what you'd expect from a 3D model (position vector, up vector...) What I can't figure out is how to get a bounding box for it-- is this possible? 回答1: You don't need to iterate over all children of the object; there's a method in the library to do this: THREE.Box3#setFromObject : see the docs . For example, you can do: var bbox = new THREE.Box3().setFromObject(obj); to get the bounding box of obj , including all of its children, 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: This question already has an answer here: How to edit a JavaScript alert box title? 11 answers How to change the title of this message box in asp.net? this heading appears in IE. Do Help... 回答1: You cannot. There is no API to do this and the default title is an anti-phishing security feature. If you want that much control over the appearance of your alert messages, then you will have to build your own in the DOM instead of using native ones. 回答2: You can't change javascript message box title. check this out: How to edit a JavaScript alert

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 really wonder why facebook and google can change the url without reloading the page? they just change the block or content in their site. I notice that when I am using facebook, when click on the "new feed" the url is " http://www.facebook.com/ " and the page didn't reload, then i click on "messages" the url changed to " http://www.facebook.com/messages/ " and the page still not reload just change the "content" block of the site. So how do I change url without reloading the page? edit: i got the answer. there are 2 cases here: browser

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 am trying to 'replace' the button on select inputs. I have looked at the select replacement plugins in jquery but they are all a little bloated IMO. What I'd like to achieve is a simple span positioned over the dropdown button of the select box and when it is clicked make the select options drop. Here is what I have: $(document).ready(function(){ $('select').after('<span class="cta arrow-down"></span>'); $('input[type="submit"]').after('<span class="cta arrow-right"></span>'); $('span.cta').each(function(){ var $this = $(this); var $prev =

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 am need a Java function that will generate a bounding box (rectangle) around a buffer. The buffer is defined by the center point (WGS84 coordinate) and the radius (in meters). Getting a bounding box for a buffer in JTS seems to be quite simple: Point center = .... Geometry boundingBox = center.buffer(...).getEnvelope(); This however is pure planar geometry. Is there a way to do this using a coordinate reference system with the distance given in meters? Optimally with Geotools but other Java solutions will also work... 回答1: I ended up using

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 using C# to create a website and I'm trying to show a message box. I'm trying to use JavaScript for this situation and it runs if I do the following: Response.Write("<script LANGUAGE='JavaScript' >alert('Login Successful')</script>"); However if instead I do this: Response.Write("<script LANGUAGE='JavaScript' >alert('Login Successful')</script>"); Response.Redirect("~/admin.aspx"); The message box doesn't get shown. Why is this and how can I fix it? 回答1: By doing a Response.Redirect right after you're actually sending a 302 redirect to

在元素上设置该属性，可使其子代排列在同一水平上，类似 display:inlineblock;。 目前 box-flex 属性还没有得到 firefox、 Opera、 chrome 浏览器的完全支 持 ， 但 可 以 使 用 它 们 的 私 有 属 性 定 义 firefox(-moz-) 、 opera(-o-) 、 chrome/safari（-webkit-)。 前提：使用如下属性，必须在父代设置 display:box; 0x1 box-flex 可能的值为 n（数字）。 - 占父级元素宽度的 n 份 - 若子元素设置固定宽度，则该子元素应用固定宽度，其他未设置固定宽度的字元素将余下的父级宽度（父级-已设置固定宽度的子代元素的总宽度按 n 占份数 - 若子元素有 margin 值，则按余下（父级宽度-子代固定总宽度-总 margin 值）宽度占 n 份 0x2 box-orient 可能的值： horizontal | vertical | inline-axis | block-axis | inherit - horizontal 在水平行中从左向右排列子元素。 - vertical 从上向下垂直排列子元素。 - inline-axis 沿着行内轴来排列子元素（映射为 horizontal）。 - block-axis 沿着块轴来排列子元素（映射为 vertical）

学习laravel，推荐使用Homestead网站运行环境，然后安装这个运行环境，还是挺麻烦的，记录下 1.先要安装virtual box，或者VMware 2.安装 vagrant 3.然后将vagrant命令添加到path 4.然后是vagrant box add laravel/homestead,它会去下载box，如果下载速度很慢，可以将下载链接复制下来，用下载工具下载，网址如下： https://app.vagrantup.com/laravel/boxes/homestead/versions/6.0.0/providers/virtualbox.box https://vagrantcloud.com/laravel/boxes/homestead/versions/6.0.0/providers/virtualbox.box 修改相应的版本号 5.具体可以看下 这个介绍 是看了 这个博客 解决的问题 ,在vagrant up的运行过程中来操作，最后就启动起来了。 7.你可以到virtual box中打开这个虚拟机，用户名和密码都是登录名，也可以用vagrant ssh来免密登陆 文章来源: window安装Homestead

https://www.jianshu.com/p/5195165bbd06 1.step_w、step_h其实就相当于faster中的feat_stride,也就是把这些点从feature map映射回原图,同时也可以看出min_size、max_size这些都是直接在针对原图来讲的 2.以mobileNet-ssd为例子:https://github.com/chuanqi305/MobileNet-SSD/blob/master/train.prototxt layer { name: " conv11_mbox_priorbox " type: " PriorBox " bottom: " conv11 " bottom: " data " top: " conv11_mbox_priorbox " prior_box_param { min_size: 60.0 aspect_ratio: 2.0 flip: true clip: false variance: 0.1 variance: 0.1 variance: 0.2 variance: 0.2 offset: 0.5 } } layer { name: " conv13_mbox_priorbox " type: " PriorBox " bottom: " conv13 " bottom: " data "

YOLO v3解读 转自： https://xmfbit.github.io/2018/04/01/paper-yolov3/ YOLO的作者又放出了V3版本，在之前的版本上做出了一些改进，达到了更好的性能。这篇博客介绍这篇论文： YOLOv3: An Incremental Improvement 。下面这张图是YOLO V3与RetinaNet的比较。 可以使用搜索功能，在本博客内搜索YOLO前作的论文阅读和代码。 YOLO v3比你们不知道高到哪里去了 YOLO v3在保持其一贯的检测速度快的特点前提下，性能又有了提升：输入图像为大小的图像，可以在ms跑完，mAP达到了，这个数据和SSD相同，但是快了倍。在TitanX上，YOLO v3可以在ms内完成，的值为。而RetinaNet需要ms，近似却略低，为。 ps：啥是AP AP就是average precision啦。在detection中，我们认为当预测的bounding box和ground truth的IoU大于某个阈值（如取为）时，认为是一个True Positive。如果小于这个阈值，就是一个False Positive。 所谓precision，就是指检测出的框框中有多少是True Positive。另外，还有一个指标叫做recall，是指所有的ground truth里面，有多少被检测出来了