Processing: Creative Coding and Computational Art

Notice that you can make the value of cellWidth different than the value of cellHeight,
creating an alternative grid (see Figure 6-12). Finally, let’s add some random() functions
throughout the program.
Figure 6-12. Alternative grid made from points
One of the advantages of generating a line this way, using adjacent points, is the ability to
alter the spacing of the points, as in the next example (see Figure 6-13):
/*
Point Grid
Ira Greenberg, November 20, 2005
*/
size(300, 300);
background(0);
// grid variables
int cellWidth = width/20;
int cellHeight = height/20;
int ptGap = 3;
int randHt = 4;
int randWdth = 10;
stroke(255);
//vertical lines
for (int i=cellWidth; i