using color type

gabri3d

in Library and Tool Development • 2 years ago

Hi!

I've been trying to create a library for processing but I don't understand how tu use processing types and methods in my library

here a simple example of what I want to do:

import processing.core.*;
public class Point
{
int x,y;
color c;
public Point(int ax, int ay, int ar, int ag, int ab)
{
x = ax;
y = ay;
c = color(ar,ag,ab);
}
}

two lines with yellow background give me an error, but I can't find a solution.

first says: color can not be resolved as a type

second one: The method color(int,int,int) is undefined for the type point

Replies(3)

ijeoma

Re: using color type

2 years ago

you cant use the color primitive outside of the processing ide but the color primitive is really an int so can do this

int c = color(ar, ag, ab);

in eclipse and etc. you can also use ints for colors in processing ide too. the color primitive is there to make it easier for beginners. but to use the processing color methods including PApplet.color(r,g,b) and etc inside of a class you'd have to do this

import processing.core.*;
public class Point
{
PApplet parent;
int x,y;
color c;
public Point(PApplet ap, int ax, int ay, int ar, int ag, int ab) {
parent = ap;
x = ax;
y = ay;
c = parent.color(ar,ag,ab);
}
}

Animation library for timeline/keyframe based tweens and more: www.ekeneijeoma.com/processing/ijeomamotion/

bigtexapps

Re: Re: using color type

7 months ago

Thanks for the answer it helped me figure out my problem that I was having with color.

gabri3d

Re: using color type

2 years ago

ok! thanks for the fast answer!

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using color type

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