layer

show/hide layers in d3.js

由 别来无恙 提交于 2019-12-21 04:48:11
问题 First of all: I'm new to d3.js! I have a map and some points displayed on it. Now I want to add buttons to show/hide the points. What I have until now: function checkAll(){ d3.selectAll("g").attr("visibility", "visible"); } function uncheckAll(){ d3.selectAll("g").attr("visibility", "hidden"); } This works so far but hides/shows the whole map. I have a function "drawpoints()" that draws the points on the map. How can I change my code that it only shows/hides the points and not the whole map?

Designing Windows.Form with multiple panels -> How to hide one panel (like a PS layer)

由 老子叫甜甜 提交于 2019-12-21 02:35:13
问题 How can I hide one panel in Visual Studio 2008 Form Designer like a layer in PS? Otherwise, can someone recommend another better method to design multiple "screens" that must be clicked through by the user? 回答1: What you describe is a wizard, and you might want to investigate the approach from Eric J. However, when I have cases where I want to have multiple panels in the same space within my UI and I want to switch between them in the designer, I like to use a TabControl and hide the tabs on

docker save load export import的区别

由 让人想犯罪 __ 提交于 2019-12-20 16:32:41
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> export export命令用于持久化容器（不是镜像）。所以，我们就需要通过以下方法得到容器ID： sudo docker ps -a 接着执行导出： sudo docker export <container id> > /home/export.tarsave Save命令用于持久化镜像（不是容器）。所以，我们就需要通过以下方法得到镜像名称： sudo docker images 接着执行保存： sudo docker save busybox-1 > /home/save.tar 使用export比使用save保存的文件要小一些load save 两者的使用方法是一样的，导入压缩包生成镜像 docker import - busybox-1-export:latest docker import可以重新指定镜像的名字 docker load < /home/save.tar 区别 那，它们之间到底存在什么不同呢？ 首先，docker import可以重新指定镜像的名字，docker load不可以 其次，我们发现导出后的版本会比原来的版本稍微小一些。那是因为导出后，会丢失历史和元数据。执行下面的命令就知道了： 显示镜像的所有层(layer) sudo docker images --tree 执行命令

call service vs dao from another service

由 和自甴很熟 提交于 2019-12-20 12:44:42
问题 I have User And Role entities and Service, DAO layers for them. I need Role list from UserService. Which layer should I use from UserService? Call list method of RoleService vs RoleDAO ? Which one is common use and why? 回答1: Normally DAO layer is close to database, Service layer is encapsulating your business logic, performing any transactions or other things rather than just calling DAO. Service calling another service is more common because Your RoleService can have some business code

Google maps GeoJSON- toggle marker layers?

由 余生长醉 提交于 2019-12-20 10:48:25
问题 I have some GeoJSON returned from a call to a PostGIS database. I'd like to be able to add a marker for each feature, and be able to toggle different types of marker/feature. Currently I'm using JavaScript to generate a marker for each feature, adding them to arrays according to type, and then going through the arrays setting show/hide as appropriate to toggle the 'layers'. This works OK, but I'm wondering if the new GeoJSON functionality offers a better way to do this. As far as I can see

Presentation, Business and Data Layer

由 痴心易碎 提交于 2019-12-20 10:11:05
问题 I just started programming in C# and was reading about dividing your application / website into the three different layers was the best practice but I am having a hard time understanding exactly how. Im working on a pet project to lean more about C# but I dont want to start on any bad habits. Can you look at what I have and see if I am doing this right? Offer some hints suggestions as to how to break everything down to the different layers? Presentation Layer <%@ Page Language="C#"

Layering canvas objects in Fabric.js

由 試著忘記壹切 提交于 2019-12-20 08:41:54
问题 Is there a way to layer objects on a Fabric.js canvas via the official API? Right now the only way I have found to do it is to manually iterate through the canvas._objects and reorder them so that they get drawn in a specific order. Is there a better way to do this that doesn't (potentially) break the object? 回答1: [Edit] I've corrected my info below (my bad, I was originally thinking of the KineticJs api). FabricJS has these API methods that change the z-index of objects: canvas.sendBackwards

Java calling methods from restricted layer

由 你说的曾经没有我的故事 提交于 2019-12-19 12:07:37
问题 I'm not even sure if this is doable but I want to ask the community for their general opinion. I have to solve a following problem: My Project has 2 Layers, a Core layer and a Business layer. This Core layer is providing the Business layer. At this moment Business classes can import Core classes and do whatever they want. Core classes can only import core classes and use their methods, the access to Business classes and their respective methods is forbidden. I want to add a specific feature:

Square shaped layout border with round inside edges

由 独自空忆成欢 提交于 2019-12-18 13:21:41
问题 I’m attempting to create a layout border with corners that are square on the outside and round on the inside. I’ve gathered that I need to create an .xml drawable definition composed of two shapes: one with a stroke width and corner radius and another with a stroke width only: The drawables round_border.xml <shape xmlns:android="http://schemas.android.com/apk/res/android"> <stroke android:width="4dp" android:color="#FF000000" /> <padding android:left="7dp" android:top="7dp" android:right="7dp

Why is MVC so popular?

由 感情迁移 提交于 2019-12-18 11:30:23
问题 I was originally going to make this a longer question, but I feel like the shorter I make it, the better you'll understand what I mean. The MVC architectural pattern has 3 dependencies. The View depends on the model. The Controller depends on the View and Model. The Model is independent. The Layers architectural pattern defines N - 1 dependencies, where N is the number of Layers. Given three Layers: Model, View, and Controller, there are only 2 dependencies, as opposed to 3 with traditional
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