In this article by Angel Marquez author of the book PostGIS Essentials see how to insert GIS objects. Now is the time to fill our tables with data. It's very important to understand some of the theoretical concepts about spatial data before we can properly work with it. We will cover this concept through the real estate company example, used previously. Basically, we will insert two kinds of data: firstly, all the data that belongs to our own scope of interest. By this, I mean the spatial data that was generated by us (the positions of properties in the case of the example of the real estate company) for our specific problem, so as to save this data in a way that can be easily exploited. Secondly, we will import data of a more general use, which was provided by a third party. Another important feature that we will cover in this article are the spatial data files that we could use to share, import, and export spatial data within a standardized and popular format called shp or Shape files. In this article, we will cover the following topics: Developing insertion queries that include GIS objects Obtaining useful spatial data from a public third-party Filling our spatial tables with the help of spatial data files using a command line tool Filling our spatial tables with the help of spatial data files using a GUI tool provided by PostGIS
In this article by Denis Perevalov and Igor (Sodazot) Tatarnikov , authors of the book openFrameworks Essentials , we will investigate how to create a distributed project consisting of several programs working together and communicating with each other via networking.
This article is written by Joshua N. Milligan , the author of Learning Tableau . You are now ready to set out on a journey of building advanced visualizations! "Advanced" does not necessarily mean difficult. Tableau makes many of these visualizations easy to create. Advanced also does not necessarily mean complex. The goal is to communicate the data, not obscure it in needless complexity.
This article by Miko Coffey , the author of the book, Building Business Websites with Squarespace 7 , delves into the processes of adjusting images, adding content to sidebars or footers, and adding links.
Humans are visual creatures and have evolved to be able to quickly notice the meaning when information is presented in certain ways that cause the wiring in our brains to have the light bulb of insight turn on. This "aha" can often be performed very quickly, given the correct tools, instead of through tedious numerical analysis. Tools for data analysis, such as pandas, take advantage of being able to quickly and iteratively provide the user to take data, process it, and quickly visualize the meaning. Often, much of what you will do with pandas is massaging your data to be able to visualize it in one or more visual patterns, in an attempt to get to "aha" by simply glancing at the visual representation of the information. In this article by Michael Heydt , author of the book Learning pandas we will cover common patterns in visualizing data with pandas. It is not meant to be exhaustive in coverage. The goal is to give you the required knowledge to create beautiful data visualizations on pandas data quickly and with very few lines of code.
Cats, dogs and all sorts of memes, the Internet as we know it today is dominated by images. You can open almost any web page and you'll surely find images on the page. The more interactive our web browsing experience becomes, the more images we tend to use. So, it is tremendously important to ensure that the images we use are optimized and loaded as fast as possible. We should also make sure that we choose the correct image type. In this article by Dewald Els , author of the book Responsive Design High Performance ,we will talk about, why image formats are important, conditional loading, visibility for DOM elements, specifying sizes, media queries, introducing sprite sheets, and caching.
Microsoft Azure can be used to protect your on-premise assets such as virtual machines, applications, and data. In this article by Marcel van den Berg , the author of Managing Microsoft Hybrid Clouds , you will learn how to use Microsoft Azure to store backup data, replicate data, and even for orchestration of a failover and failback of a complete data center. We will focus on the following topics: High Availability in Microsoft Azure Introduction to geo-replication Disaster recovery using Azure Site Recovery
In this article by Arun Ravindran , author of the book Django Best Practices and Design Patterns , we will discuss the following topics: Reading a Django code base Discovering relevant documentation Incremental changes versus full rewrites Writing tests before changing code Legacy database integration
In this article by Mark Dunkerley , author of the book Learning AirWatch , you will get a full understanding of all the tools included in Enterprise Mobility Management ( EMM ) with AirWatch by VMware's mobile management suite. We will go through each of the toolsets available to ensure that you understand what is available and how to set up and configure each of them. The intention of this article is not to dive into extreme detail of AirWatch's EMM but to give you the knowledge needed to understand, represent, and set up the configurations. Understand that the mobile space is an extremely fast-growing market and some of the information might have already been updated. The information presented in this article is current as of AirWatch 7.3. In this article, we will take a look at what is needed to get started with AirWatch; we will explore the different licensing options and what hosting methods are available with support. We will also look at the different types of devices that are supported along with the different profile options to manage the devices. The following will be covered in this article: An overview of AirWatch Management suite options Hosting options Support options Learning and deployment services Supported devices Device ownership