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Often the most difficult part to learning to use a new class library is learning how to read and interpret the documentation, and the Processing libraryis no exception.

The main documentation for Processing is accessible from the Reference and Learning links at the top of the Cover page . While extensive, this documentation is not presented in industry standard javadoc format.Documentation in standard javadoc format is available here .

Android and HTML 5 make Processing more relevant

The Processing environment has been around for a long time. It was initially developed to serve as a software sketchbook and to teach fundamentals of computer programming within a visual context.While it originally occupied a very narrow niche market, it has now become more relevant on a broad scale for two important reasons:

  • Processing can be used to develop Android apps .
  • Processing has a sister product named Processing.js that will automatically convert (with some limitations) Processing source code into JavaScript code suitable for use with the canvas element in HTML 5.

In other words, Processing directly supports two of the newest and hottest items in information technology; mobile apps and HTML 5 canvas.

Discussion and sample code

The Processing website provides a number of tutorials that explain important aspects of the Processing environment and also provide sample codethat illustrates those aspects of the environment.

An integrated development environment (IDE)

As you will see when you study those tutorials, the Processing programming environment comes with its own integrated development environment (known as the Processing Development Environment or PDE). A screen shot of the PDE is shown in Image 1 .

Image 1. the processing development environment (pde).

The Processing IDE.
Image 1. The Processing Development Environment (PDE).

Click here to view an extensive discussion of the PDE.

While it is possible to develop Processing programs outside the PDE, that that presents several issues that I prefer not to deal with involving libraries, etc. Therefore, I will probably use the PDE in most of the modules in thiscollection.

The Getting Started tutorial

The Getting Started tutorial explains how to download and install the Processing environment on Windows, Mac,and Linux.

In addition, that tutorial shows you how to create your first sketch along with a lot of other useful information. Study it carefully.

Run the sketch

The Objects tutorial explains how to write a sketch in which you define your own class named Car and then instantiate and manipulate objects of that class.

I encourage you to copy the code from that tutorial into the PDE. ( Image 1 shows the beginning of that sketch.)

Once you have copied the code into the PDE, you have three optional ways to run the sketch:

  • Run directly from the PDE.
  • Run in JavaScript mode.
  • Export and run as an application.

Run directly from the PDE

You can run the sketch directly from the PDE by either clicking the triangular arrow button shown near the upper-left corner in Image 1 , or by selecting Run from the Sketch menu.

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, The processing programming environment. OpenStax CNX. Feb 26, 2013 Download for free at http://cnx.org/content/col11492/1.5
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