I was just exploring:
- Chroma library
- Double vs double along with conversion to int
- -835
- how to convert to RGB so it could be used to fill()
- seeing the hex version helped to understand this.
Split it into functions that run independently and do not share common variables:
// https://github.com/neilpanchal/Chroma
// Import Chroma library from Chroma-3
// https://docs.oracle.com/javase/tutorial/java/nutsandbolts/op3.html
import com.chroma.*;
Chroma testColorLCH; // Declare a chroma object
public void settings()
{
size(600, 600);
}
public void setup()
{
background(255);
noStroke();
textAlign(CENTER, CENTER);
textSize(48);
// Creates a magenta test color
//testColorLCH = new Chroma(ColorSpace.LCH, 50, 70, 340, 360);
// Creates a jade test color
testColorLCH = new Chroma(ColorSpace.LCH, 61, 85, 183, 255);
make1(testColorLCH);
make2(testColorLCH);
make3(testColorLCH);
make4();
make5(); //Testing constraints for RGB color with -ve and values over 255
}
public void make1(Chroma chromaCol)
{
Double roo = chromaCol.get(ColorSpace.RGB, Channel.R);
Double goo = chromaCol.get(ColorSpace.RGB, Channel.G);
Double boo = chromaCol.get(ColorSpace.RGB, Channel.B);
println("Original:");
println(roo, goo, boo);
int colRGB = testColorLCH.get();
println(hex(colRGB));
println();
//declare here so scope is the function and not lost in if()
String sroo, sgoo, sboo;
int isroo, isgoo, isboo;
if (true) //Try with false
{
//convert Double to String
sroo = "" + roo;
sgoo = "" + goo;
sboo = "" + boo;
//convert String to Integer
isroo = int(sroo);
isgoo = int(sgoo);
isboo = int(sboo);
}
else
// This replaces above for this example with Double (capital D)
{
isroo = roo.intValue();
isgoo = goo.intValue();
isboo = boo.intValue();
}
println("Circle 1:");
println(roo, goo, boo);
println(hex(color(testColorLCH.get())));
println(hex(isroo));
println(hex(isgoo));
println(hex(isboo));
println();
fill(color(isroo, isgoo, isboo));
circle(width/4, height/4, 300);
fill(0);
text("1", width/4, height/4);
}
//******************************************************************************
void make2(Chroma chromaCol)
{
double roo = chromaCol.get(ColorSpace.RGB, Channel.R);
double goo = chromaCol.get(ColorSpace.RGB, Channel.G);
double boo = chromaCol.get(ColorSpace.RGB, Channel.B);
int r = (int) roo;
int g = (int) goo;
int b = (int) boo;
println("Circle 2:");
println(r, g, b);
println(hex(color(testColorLCH.get())));
println(hex(r));
println(hex(g));
println(hex(b));
println();
fill(color(r, g, b));
circle(3*width/4, height/4, 300);
fill(0);
text("2", 3*width/4, height/4);
}
//******************************************************************************
void make3(Chroma chromaCol)
{
int col = chromaCol.get();
int hexRGB = color(testColorLCH.get());
int r = (hexRGB&0x00FFFFFF)<<8>>>24; // >>> is an unsigned shift! Try it with >> to see what happens!
int g = (hexRGB&0x00FFFFFF)<<16>>>24;
int b = (hexRGB&0x00FFFFFF)<<24>>>24;
//r = (hexRGB & 0x00FF0000)>>16;
//g = (hexRGB & 0x0000FF00)>>8;
//b = (hexRGB & 0x000000FF)>>0;
println("Circle 3:");
println(r, g, b);
println(hex(col));
println(hex(r));
println(hex(g));
println(hex(b));
println();
fill(color(r, g, b));
circle(width/4, 3*height/4, 300);
fill(0);
text("3", width/4, 3*height/4);
}
//******************************************************************************
void make4()
{
println("Circle 4:");
//println(color(0xFF00B399));
println(hex(color(0xFF00B399)));
//println(color(0, 179, 153));
color c = color(0, 179, 153);
println(hex(color(0, 179, 153)));
println(hex(int(red(c))));
println(hex(int(green(c))));
println(hex(int(blue(c))));
println();
fill(c);
circle(3*width/4, 3*height/4, 300);
fill(0);
text("4", 3*width/4, 3*height/4);
}
void make5()
{
println("Test:");
println(hex(-835));
println(hex(color(-835, 179, 153)));
println(hex(color(-1, 179, 153)));
println(hex(color(-2, 179, 153)));
println(hex(color(255, 179, 153)));
println(hex(color(256, 179, 153)));
}
I was just tinkering with a new library… you know more than me on this.
