dimensions | 易学教程

Perl Imgsize not working in loop?

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问题 I've tested getting the image size using perl with the following simple code while sitting in one directory: #!/usr/local/bin/perl use Image::Size; my $x; my $y; my $id; opendir my $dh, "." or die "$0: opendir: $!"; ($x, $y, $id) = imgsize("test_image.png"); print $x." , ".$y."\n"; This worked fine, it gave me the correct width and height of the image. Then I incorporated it into my larger code, where I'm looping through folders and files. So the bigger code is this: # I first get into a

changing ckeditor dimension for different instances (not all instances)

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问题 i'm trying to change dimensions for multiple ckeditor in the same page using this code just after the textarea <script type="text/javascript"> CKEDITOR.config.width ='250px'; CKEDITOR.config.height='600px'; </script> it changes all instances in the page and i know how to adjust default values in the config.js but i'm trying to change dimensions for some instances not all of them 回答1: If you ever need to change the height of specific instance of CKEditor and all you can change is config.js ,

How to resize textbox and get dimensions inside div element using jquery

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问题 I have a div element which can be draggable and I have a textbox inside that div element and when I drag the div element automatically the textbox size should increase along with the div.And I need to get the textbox X and Y positions so how do I do that? This is what I have now: http://jsfiddle.net/wWFpP/3/ Here is my ode: <div class="demo"> <asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine"></asp:TextBox> </div> This is my script for dragging: <script> $(function () { $('.demo')

Getting Accurate Dimensions for a newly-created DOM object

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问题 I'm creating DOM elements dynamically (more specifically, using jQuery to create a DIV containing some text with css "width:auto", and using a "font-face" font, in the page OnLoad event) but find that the width of the div is not the expected size (specifically, the width is wrong) immediately after I create it and add it to the DOM tree. I need to know the width/height of the element because I will be doing some dynamic layout on it. As a workaround, I use the following code after creating

Obtaining Image File Dimensions From URL

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问题 I have this link: https://s23527.pcdn.co/wp-content/uploads/2017/04/wine_speedlights_kit_lens.jpg.optimal.jpg It is on Cell A2: I want to get on Cell B2 the dimensions of the URL of this JPG (I don't mind how to get it, it can be 1920 on cell B2 and 1080 on cell C2 ) 回答1: You will need to make an API call to URLDownloadToFile to download your image. In the below example, we will download to the temp folder C:\Temp\ . Once your image is downloaded, you will create a new Shell object, and

Rename Length to Diameter in WooCommerce formatted product dimensions output

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问题 I’m using this woocommerce_format_dimensions filter hook to replace displayed dimensions format from 1 x 1 x 1 in to 1 L in. x 1 W in. x 1 H in. add_filter( 'woocommerce_format_dimensions', 'custom_formated_product_dimentions', 10, 2 ); function custom_formated_product_dimentions( $dimension_string, $dimensions ){ if ( empty( $dimension_string ) ) return __( 'N/A', 'woocommerce' ); $dimensions = array_filter( array_map( 'wc_format_localized_decimal', $dimensions ) ); foreach( $dimensions as

Rename Length to Diameter in WooCommerce formatted product dimensions output

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screen.width and screen.height different values in different APIs/devices

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问题 Edit: also happens with $('body').width() and window.outerWidth API 2.3.3 HVGA Before and after rotating device outputs same screen width (320) API 3.0 WXGA Width and height toggle each rotation for example starts with screenWidth:1280 screenheight: 800 I rotate 90 now has screenWidth:800 screenheight: 1280 so what do I do if I want to make certain changes on rotations according to dimensions and want to target all APIs? I need a value which is the same for all devices. Edit: For certain

rn 组件总结

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虽然最近期末考试，但还是准备梳理一下自己一两个月来学习 React Native 的一些经历 Model 该组件是提供一种覆盖在其他视图上显示的内容。类似于下图支付宝的选择框遮罩效果。还有一些b站的分享也是使用类似的这种效果文档参见一些官网的把： https://reactnative.cn/docs/modal/ 官网上说的很好了这个我们一般会和 StatusBar 组件进行配合使用 StatusBar 这是控制应用状态栏的组件，就是手机最上方的那部分横条（显示时间，推送信息，WiFi之类）区域。大概是可以控制背景，字体颜色，是否隐藏（参考小说的阅读器），透明等等参考官方的文档： https://reactnative.cn/docs/statusbar/ 注意：可以放置多个且后加载的会覆盖先加载的。因此在配合导航器使用时，请务必考虑清楚 StatusBar 的放置顺序。 Android 放置视图的区域是默认在状态栏之下开始的，而 IOS 的视图是在状态栏上开始的，所以我们就需要判断他到底是哪个平台，就必须使用 Platform ，来给我们要渲染的视图给一个 marginTop Platform 在编写跨平台的应用时，我们肯定希望尽可能多地复用代码。但是总有些时候我们会碰到针对不同平台编写不同代码的需求。一般我们通过 Platform.OS 来判断他是哪个平台的

How to fit a week into a calendar time hierarchy?

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问题 As is usual with cubes, the users want things that don't fit into a hierarchy to be displayed hierarchically. They'd like to see Day > Week > Month > Quarter > Year as the hierarchy, but the problem with weeks is they can be part of 1-2 months, not just 1 month (and by extension part of 2 quarters, semesters, years). So my question is: how to set up the attribute relationships, and how to set up the hierarchy? Here is what I have, but I know it's not optimal. Hierarchies (cycle == weeks):