Colors on V5 Brain

VEX V5 General Discussion Technical Discussion
1

I was doing some coding (on VCS sadly) and I was wondering if there is a way to customize colors on the V5 brain screen. VCS will only let me do certain colors and I was really hoping for a tan color. Is there any way to get that?

2

The color type has a constructor that takes RGB colour values. For example, if you want a light grey, you can do Brain.Screen.setFillColor({0xDD, 0xDD, 0xDD}).

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3

Lots of ways to create colors.

int main() {
    // using one of the named colors
    Brain.Screen.setFillColor( red );
    Brain.Screen.drawRectangle( 10, 10, 30, 40 );
    
    // using web color
    Brain.Screen.setFillColor( "#008000" );
    Brain.Screen.drawRectangle( 50, 10, 30, 40 );

    // using hue    
    Brain.Screen.setFillColor( 120.0 );
    Brain.Screen.drawRectangle( 90, 10, 30, 40 );
    
    // as color instance
    vex::color c = vex::color( 0, 30, 200 );
    Brain.Screen.setFillColor( c );
    Brain.Screen.drawRectangle( 130, 10, 30, 40 );
    
    // a different way to name color
    vex::color tan;
    tan.web("#D2B48C");
    Brain.Screen.setFillColor( tan  );
    Brain.Screen.drawRectangle( 170, 10, 30, 40 );
    
    while(1) {
        // Allow other tasks to run
        this_thread::sleep_for(10);
    }
}
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4

So, rose is rose, no matter what colorspace you use?

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5

Who knows what colorspace the V5 LCD is using, pretty sure it’s not sRGB, what you see is what you get.

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6

I know this is a really old topic, but I wanted to ask, do the hex color codes support having an alpha value? An example would be ‘#ff0000’ for red, and with an alpha value (or a transparency value), you could use ‘#ff00007f’ to get a halfway transparent red.

1 Like
7

Yea, six years old. We do not support alpha channel.

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