dashing | 易学教程

Cannot get django dashing example to work

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问题 I followed the instructions here (https://github.com/talpor/django-dashing) a few times, but I never seem to be able to get the dashboard. All I get is the screenshot attached. Any help would be appreciated 回答1: Figured it out. This was due to using django 1.9. When I downgraded back to 1.8 problem was solved. 来源： https://stackoverflow.com/questions/34301130/cannot-get-django-dashing-example-to-work

ROS2机器人笔记20-11-29

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turtlebot的文档是目前ROS1和ROS2机器人中做得最好最完善的并且还有免费的多语书。 ROS机器人编程新书推荐（附免费下载）现在文档已经是这样了：首先支持版本多，覆盖linux和windows，版本涵盖ros1和ros2，均为长期支持版，其实melodic也是完美支持的，这里发现标签中并没有。以windows为例：在此更新的手册中，说明比以前的手册容易得多，并且操作起来也更简单。新功能之一是通过在页面顶部选择特定的ROS版本来支持ROS1和ROS2的各种版本（其他版本或平台将很快添加）。可以看到物联网版本的win10操作系统的雏形！！！当然中文支持也挺好的（机器翻译！）以前的手册中涉及的文本阅读过多，但是在此版本中，所有内容都变得紧凑，只公开了必要的信息。如果想了解有关特定信息的更多内容，只需单击主题即可展开或缩小。这里关于ROS有个话题如下，有兴趣可以参考： ROS1已经非常成熟，并将在2025年完成使命，ROS2将在2022年推出第一个5年版本的LTS长期支持版，现在的长期支持版都是3年（Dashing和Foxy），功能还在测试和快速迭代中！ ROS机器人操作系统研发成熟的标志是什么呢？（ www.zhihu.com/question/390894125 ）目前，博客教程主要围绕ROS2 Foxy版本开发，其他版本全部停止维护

机器人操作系统ROS1和ROS2各版本联通性笔记

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ROS1在windows和linux下，indigo，kinetic，melodic和noetic，都能互通，不会遇到问题。 ROS2的DDS版本有差异性，dashing和foxy有不能联通情况，与micro-ros也有一些不稳定问题。安装ROS2 foxy非常简单：使用windows或linux的dashing版本，一切正常如下：但是如果使用foxy，调试结果如下：有问题的。版本不匹配，如果匹配一切ok。 https://micro-ros.github.io/blog/2020/07/24/foxy_release/ https://micro-ros.github.io/blog/2020/08/27/esp32/ https://micro-ros.github.io//docs/tutorials/core/overview/ 上面网址提供了许多教程用来学习微型ROS，微型ROS支持的不同RTOS的相关工具。主要分为两部分：核心教程和高级教程。如果不熟悉micro-ROS，强烈建议按以下顺序学习教程： Linux上的第一个micro-ROS应用程序本教程说明如何安装micro-ROS框架和工具。然后在Linux下开发自己的第一个micro-ROS应用程序。（如果已经知道ROS 2，将看到这些工具已与标准ROS 2很好地集成在一起。）

Sending data Curl/Json in Python

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问题 I`m trying to make those 2 requests in python: Request 1: curl -X POST -H "Content-Type: application/json" -d '{ "auth_token": "auth1", "widget": "id1", "title": "Something1", "text": "Some text", "moreinfo": "Subtitle" }' serverip Request 2: vsphere_dict = {} vsphere_dict['server_name'] = "servername" vsphere_dict['api_version'] = apiVersion vsphere_dict['guest_count'] = guestCount vsphere_dict['guest_on'] = guestOnLen vsphere_dict['guest_off'] = guestOffLen #Convert output to Json to be

Dashing problems using Rickshaw with one widget

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问题 I'm currently trying to add data types to the x-axis of my graphs in Dashing using the Rickshaw widget. Essentially I want to create data call in the dashboard file that relates to an if statement in the Coffeescript widget Code from coffeescript (Rickshaw.coffee) # Define elements for Rickshaw time time = new Rickshaw.Fixtures.Time months = time.unit('month') weeks = time.unit('week') if @get("weekly-view") x_axis = new Rickshaw.Graph.Axis.Time(graph: graph, timeUnit: weeks) y_axis = new

Having problems with Ruby file from Dashing

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问题 I am having trouble with twitter_user.rb, which is supposed to get the number of tweets, followers, and following of a given Twitter username. I assume that I am supposed to replace TWITTER_USERNAME in line 9 with the Twitter username that I am interested in. I did that and started dashing but I got: scheduler caught exception: undefined method '[]' for nil:NilClass /.../jobs/twitter_user.rb:19:in 'block in <top (required)>' It looks like the problem is with line 19 which is: tweets =

Dashing does not run on Heroku

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问题 I'm trying to deploy Dashing to Heroku. Everthing runs perfectly on localhost. Deploying with the instructions provided by the github page It seems to be something to be with the backports gem. Below are the heroku log files 2014-11-26T21:12:22.141799+00:00 heroku[web.1]: State changed from crashed to starting 2014-11-26T21:12:32.932667+00:00 heroku[web.1]: Starting process with command `bundle exec thin start -R config.ru -e production -p 23294` 2014-11-26T21:12:40.618062+00:00 app[web.1]:

Installing Dashing Error

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问题 I am trying to install Dashing Framework on my Macbook Air Os X Mavericks running Ruby 2.0.0. When I run sudo gem install dashing I get the following errors: ERROR: Error installing dashing: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/include/ruby.h Gem files will remain installed in /Library/Ruby/Gems/2

Add routes to Dashing dashboard

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问题 How do I add a route in my dashboard that I can access, for example... get '/:id' do protected! return params[:'id'] end Which I can call from http://localhost:3030?id=1234 回答1: The easiest way to do this would be to define a new application and call it inside the config.ru that gets created by Dashing. For instance, I created a new file called my_app.rb in a dashing repo with the following contents: # my_app.rb require 'sinatra/base' class MyApp < Sinatra::Base get '/:id' do "My own custom

Is there a way to disable drag&drop in dashing?

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问题 Tried to dig through the JS, but it's above my head. IMO with many dashboards it does not make sense to rearrange things. 回答1: You can disable dragging by adding an items parameter in your assets/javascripts/application.coffee file and setting it to 'none' like so: draggable: stop: Dashing.showGridsterInstructions start: -> Dashing.currentWidgetPositions = Dashing.getWidgetPositions() items: "none" The items parameter takes a string that matches a CSS selector. It can also take a collection