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Examples for Processing (BETA) version 91+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Conditionals 1
by REAS <http://reas.com>

Conditions are like questions. They allow a program to decide to take one action if the answer to a question is true or to do another action if the answer to the question is false. The questions asked within a program are always logical or relational statements. For example, if the variable 'i' is equal to zero then draw a line.

Created 2 September 2002

    
// Conditionals 1 
// by REAS <http://reas.com> 

size(200, 200); 
background(0); 
 
for(int i=10; i<width; i+=10) { 
  // If 'i' divides by 20 with no remainder draw the first line 
  // else draw the second line 
  if(i%20 == 0) { 
    stroke(153); 
    line(i, 40, i, height/2); 
  } else { 
    stroke(102); 
    line(i, 20, i, 180); 
  } 
}
 







    
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