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Examples Repository

This is example code for BioImage Suite Web. It introduces certain JavaScript and Software Engineering Concepts.

To use (parts of) BioImage Suite Web as a library you can install it via npm

For node.js

npm install biswebnode

For browser/electron

npm install biswebbrowser

Learning JavaScript

These examples intoduce certains aspects of JavaScript but they are not a complete introduction to the language. For this the reader is referred to the two books by Axel Rauschmayer. The first, which covers JavaScript up to version 5 (standard usage until maybe 2016) , is Speaking JS by Axel Rauschmayer. Part I -- "A JavaScript QuickStart" may be all that you need to read to get started. JavaScript v6 (ES2015) is now fast becoming the new standard. A second book called Exploring ES6 by the same author covers some of the changes. I strongly recommend reading Chapters 1-4 for a clear understanding of all that is new here. Finally, we recommend this document from the BioImageSuite Web repository which highlights some aspects of the language that are particularly relevant to these examples.

Before you begin

• Install Node.js 10.x (LTS) -- you may download this from:

  https://nodejs.org/en/download/.

• Install the following global prerequisites using npm (on a MS-Windows machine omit sudo)

   sudo npm install -g gulp mocha jsdoc eslint modclean webpack webpack-cli uglify-es rimraf 
   sudo npm install -g electron --unsafe-perm=true --allow-root
   sudo npm install -g electron-packager
  

Examples Of Using BioImage Suite Web as a library

The following two directories illustrate the use of the npm packages biswebnode and biswebbrowser.

• biswebnode -- examples of using the node.js package biswebnode as a library.

• biswebbrowser -- examples of using the browser/electron package biswebbrowser as a library.

A Complete Simple Application Example in 10 Steps

This set of examples shows how to create both the code and, more critically, the development/build environment for a multi-context (web, electron, PWA) application. The application itself is trivial -- it simply computes the BMI given height and weight information. The focus here is really on the software engineering infrastructure aspects of the problem.

This set of examples was developed in part also for the needs of the Yale Course Medical Software Design (BENG 406b, Spring 2019).

• Step 1 -- a simple commandline (node.js) helloworld application.
• Step 2 -- a slightly more complex node.js application showing how to use a module.
• Step 3 -- a simple web-based application showing how to use an old-fashioned module. We also introduce here npm and the associated package file package.json and the task runner gulp.
• Step 4 -- a redo of step 3 using proper modules and the webpack ''bundler''. We also introduce regression testing using mocha.
• Step 5 -- a redo of step 4 but now as a desktop application using Electron.
• Step 6 -- moving step 5 to web-components (custom web elements)
• Step 7 -- Using BioImage Suite Web code to create menus, file dialogs and file I/O
• Step 8 -- Progressive web applications.
• Step 9 -- packaging web applications for deployment to a web server.
• Step 10 -- extra code for packaging electron-based desktop applications. distribution.
• Complete -- the full example with desktop and electron and pwa versions. This is the boiler-plate template for BENG 406b projects.

BioImage Suite Web (bisweb) is a web-based medical image analysis suite primarily geared towards Neuroimaging Analysis. We gratefully acknowledge support from the NIH Brain Initiative under grant R24 MH114805 (Papademetris X. and Scheinost D. PIs).