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Various style fixes

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Divay Prakash 2018-11-17 19:32:06 +05:30
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@ -4,6 +4,7 @@ filename: learnprocessing.pde
contributors: contributors:
- ["Phone Thant Ko", "http://github.com/phonethantko"] - ["Phone Thant Ko", "http://github.com/phonethantko"]
--- ---
## Introduction ## Introduction
Processing is a programming language for creation of digital arts and multimedia content, allowing non-programmers to Processing is a programming language for creation of digital arts and multimedia content, allowing non-programmers to
@ -29,7 +30,7 @@ The language is statically typed, and also comes with its official IDE to compil
/* --------------------------------------- /* ---------------------------------------
Writing and Running Processing Programs Writing and Running Processing Programs
--------------------------------------- ---------------------------------------
*/ */
// In Processing, your program's entry point is a function named setup() with a void return type. // In Processing, your program's entry point is a function named setup() with a void return type.
// Note! The syntax looks strikingly similar to that of C++. // Note! The syntax looks strikingly similar to that of C++.
@ -205,11 +206,12 @@ noLoop(); // only allows it to run once.
redraw(); // runs the draw() method once more. redraw(); // runs the draw() method once more.
exit(); // This stops the program. It is useful for programs with draw() running continuously. exit(); // This stops the program. It is useful for programs with draw() running continuously.
``` ```
## Drawing with Processing ## Drawing with Processing
Since you will have understood the basics of the language by now, we will now look into the best part of Processing; DRAWING. Since you will have understood the basics of the language by now, we will now look into the best part of Processing; DRAWING.
``` ```
/* ------ /* ------
Shapes Shapes
------ ------
@ -326,10 +328,11 @@ stroke(255, 255, 255, 200); // stroke colour set to yellow with transparency set
// Processing can render images and use them in several ways. Mostly stored as PImage datatype. // Processing can render images and use them in several ways. Mostly stored as PImage datatype.
filter(shader); // Processing supports several filter functions for image manipulation. filter(shader); // Processing supports several filter functions for image manipulation.
texture(image); // PImage can be passed into arguments for texture-mapping the shapes. texture(image); // PImage can be passed into arguments for texture-mapping the shapes.
``` ```
If you want to take things further, there are more things Processing is powered for. Rendering models, shaders and whatnot. If you want to take things further, there are more things Processing is powered for. Rendering models, shaders and whatnot.
There's too much to cover in a short documentation, so I will leave them out here. Shoud you be interested, please check out the references. There's too much to cover in a short documentation, so I will leave them out here. Shoud you be interested, please check out the references.
``` ```
// Before we move on, I will touch a little bit more on how to import libraries // Before we move on, I will touch a little bit more on how to import libraries
// so you can extend Processing's functionality to another horizon. // so you can extend Processing's functionality to another horizon.
@ -342,8 +345,8 @@ There's too much to cover in a short documentation, so I will leave them out her
// The power of Processing can be further visualized when we import libraries and packages into our sketches. // The power of Processing can be further visualized when we import libraries and packages into our sketches.
// Import statement can be written as below at the top of the source code. // Import statement can be written as below at the top of the source code.
import processing.something.*; import processing.something.*;
``` ```
## DTC? ## DTC?
Down To Code? Let's get our hands dirty! Down To Code? Let's get our hands dirty!
@ -352,7 +355,6 @@ Let us see an example from openprocessing to visualize how much Processing is ca
Copy the code below into your Processing IDE and see the magic. Copy the code below into your Processing IDE and see the magic.
``` ```
// Disclaimer: I did not write this program since I currently am occupied with internship and // Disclaimer: I did not write this program since I currently am occupied with internship and
// this sketch is adapted from openprocessing since it shows something cool with simple codes. // this sketch is adapted from openprocessing since it shows something cool with simple codes.
// Retrieved from: (https://www.openprocessing.org/sketch/559769) // Retrieved from: (https://www.openprocessing.org/sketch/559769)
@ -380,8 +382,6 @@ void draw() {
} }
void branch(float len) { void branch(float len) {
col=map(len, 0, 90, 150, 255); col=map(len, 0, 90, 150, 255);
fill(col, 0, 74); fill(col, 0, 74);
@ -390,7 +390,6 @@ void branch(float len) {
ellipse(0, -len, 3, 3); ellipse(0, -len, 3, 3);
len *= 0.7; len *= 0.7;
if (len>30) { if (len>30) {
pushMatrix(); pushMatrix();
translate(0, -30); translate(0, -30);
@ -406,7 +405,6 @@ void branch(float len) {
} }
} }
``` ```
Processing is easy to learn and is particularly useful to create multimedia contents (even in 3D) without Processing is easy to learn and is particularly useful to create multimedia contents (even in 3D) without
@ -415,7 +413,7 @@ the program flow.
However, that does not apply when you introduce external libraries, packages and even your own classes. However, that does not apply when you introduce external libraries, packages and even your own classes.
(Trust me! Processing projects can get real humongous...) (Trust me! Processing projects can get real humongous...)
## Some useful resources: ## Some useful resources
- [Processing Website](http://processing.org) - [Processing Website](http://processing.org)
- [Processing Sketches](http://openprocessing.org) - [Processing Sketches](http://openprocessing.org)