How to add predefined ofColor

yuma_taesu · April 3, 2018, 3:26pm

Hi, I’m trying to define&add original colors predefined like ofColor::red, ofColor::blue.
How do you define the original color for ofColor?

edapx · April 3, 2018, 5:53pm

Hello @yuma_taesu. In this file

github.com

edap/openFrameworks/blob/master/libs/openFrameworks/types/ofColor.cpp#L4


#include "ofColor.h"
#include "ofConstants.h"


template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::gray(limit() / 2, limit() / 2, limit() / 2);
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::white(limit(), limit(), limit());
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::red(limit(), 0, 0);
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::green(0, limit(), 0);
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::blue(0, 0, limit());
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::cyan(0, limit(), limit());
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::magenta(limit(), 0, limit());
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::yellow(limit(), limit(), 0);
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::black(0, 0, 0);
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::aliceBlue(0.941176*limit(),0.972549*limit(),1*limit());
template<typename PixelType> const ofColor_<PixelType> ofColor_<PixelType>::antiqueWhite(0.980392*limit(),0.921569*limit(),0.843137*limit());

You can see how openFrameworks uses templates to create the colors like blueViolet, acqua etc…

Maybe you can simply create a class that returns an ofColor object initialized with your custom colors value, defined as rgb?