// P_2_1_3_02.pde
//
// Generative Gestaltung, ISBN: 978-3-87439-759-9
// First Edition, Hermann Schmidt, Mainz, 2009
// Hartmut Bohnacker, Benedikt Gross, Julia Laub, Claudius Lazzeroni
// Copyright 2009 Hartmut Bohnacker, Benedikt Gross, Julia Laub, Claudius Lazzeroni
//
// http://www.generative-gestaltung.de
/**
* draw a module made of lines in a grid
*
* MOUSE
* position x : number of tiles horizontally
* position y : number of tiles vertically
*
* KEYS
* 1-3 : draw mode
* s : save png
* p : save pdf
*/
import processing.pdf.*;
import java.util.Calendar;
boolean savePDF = false;
float tileCountX = 5;
float tileCountY = 5;
int count = 10;
int colorStep = 20;
int lineWeight = 0;
int strokeColor = 0;
color backgroundColor = 0;
int drawMode = 1;
void setup() {
size(600, 600);
}
void draw() {
if (savePDF) beginRecord(PDF, timestamp()+".pdf");
colorMode(HSB, 360, 100, 100);
smooth();
strokeWeight(0.5);
strokeCap(ROUND);
tileCountX = mouseX/30+1;
tileCountY = mouseY/30+1;
background(backgroundColor);
for (int gridY=0; gridY<= tileCountY; gridY++) {
for (int gridX=0; gridX<= tileCountX; gridX++) {
float tileWidth = width/tileCountX;
float tileHeight = height/tileCountY;
float posX = tileWidth*gridX;
float posY = tileHeight*gridY;
float x1 = tileWidth/2;
float y1 = tileHeight/2;
float x2 = 0;
float y2 = 0;
pushMatrix();
translate(posX, posY);
for(int side = 0; side < 4; side++) {
for(int i=0; i< count; i++) {
// move end point around the four sides of the tile
if(side == 0){
x2 += tileWidth/count;
y2 = 0;
}
if(side == 1){
x2 = tileWidth;
y2 += tileHeight/count;
}
if(side == 2){
x2 -= tileWidth/count;
y2 = tileHeight;
}
if(side == 3){
x2 = 0;
y2 -= tileHeight/count;
}
// adjust weight and color of the line
if(i < count/2){
lineWeight += 1;
strokeColor += 60;
}
else {
lineWeight -= 1;
strokeColor -= 60;
}
// set colors depending on draw mode
switch(drawMode){
case 1:
backgroundColor = 360;
stroke(0);
break;
case 2:
backgroundColor = 360;
stroke(0);
strokeWeight(lineWeight);
break;
case 3:
backgroundColor = 0;
stroke(strokeColor);
strokeWeight(mouseX/100);
break;
}
// draw the line
line(x1, y1, x2, y2);
}
}
popMatrix();
}
}
if (savePDF) {
savePDF = false;
endRecord();
}
}
void keyPressed() {
if (key == 's' || key == 'S') saveFrame(timestamp()+"_##.png");
if (key == 'p' || key == 'P') savePDF = true;
if (key == '1') drawMode = 1;
if (key == '2') drawMode = 2;
if (key == '3') drawMode = 3;
}
// timestamp
String timestamp() {
Calendar now = Calendar.getInstance();
return String.format("%1$ty%1$tm%1$td_%1$tH%1$tM%1$tS", now);
}
Exercise 54
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