From 365eca2c3fcf562645e4b73077e6330233a78a08 Mon Sep 17 00:00:00 2001 From: Michael Miller Date: Wed, 29 Mar 2023 11:07:40 -0700 Subject: [PATCH] Created Rgb48Color object API (markdown) --- Rgb48Color-object-API.md | 90 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Rgb48Color-object-API.md diff --git a/Rgb48Color-object-API.md b/Rgb48Color-object-API.md new file mode 100644 index 0000000..59fe90d --- /dev/null +++ b/Rgb48Color-object-API.md @@ -0,0 +1,90 @@ +Rgb48Color represents a color object that is represented by Red, Green, Blue component values. + +## Properties +There are three properties that represent the component values Red, Green, and Blue. The values range from 0 to 65535. Black would 0,0,0 and white would be 65535,65535,65535. +``` +uint16_t R; +uint16_t G; +uint16_t B; +``` +## Constructors + +### Rgb48Color(uint16_t r, uint16_t g, uint16_t b) : +Constructs a Rgb48Color using Red, Green, and Blue color component values. +> * r - value of Red component (0 - 65535) +> * g - value of Green component (0 - 65535) +> * b - value of Blue component (0 - 65535) + +### Rgb48Color(uint16_t brightness) +Constructs a Rgb48Color using a single brightness value(0 - 65535). This works well for creating gray tone colors. +> * _brightness_ - brightness value where (0) = black, (32767) = gray, (65535) = white + +### Rgb48Color(HtmlColor color); +Construct a Rgb48Color using HtmlColor, converting the Html single value to Rgb component values +> * _color_ - an HtmlColor object + +### Rgb48Color(HslColor color); +Construct a Rgb48Color using HslColor, converting the Hsl to Rgb +> * _color_ - an HslColor object + +### Rgb48Color(HsbColor color); +Construct a Rgb48Color using HsbColor, converting the Hsb to Rgb +> * _color_ - an HsbColor object + +### Rgb48Color() +Construct a Rgb48Color that will have its values set in latter operations. +CAUTION: The R,G,B members are not initialized and may not be consistent until set. + +## Methods +### uint16_t CalculateBrightness(); +CalculateBrightness will calculate the overall brightness. +NOTE: This is a simple linear brightness + +### Rgb48Color Dim(uint16_t ratio); +Dim will return a new color that is blended to black with the given ratio. +NOTE: This is a simple linear change. +> * _ratio_ - (0-65535) where 65535 will return the original color and 0 will return black. + +### Rgb48Color Brighten(uint16_t ratio); +Brighten will return a new color that is blended to white with the given ratio. +NOTE: This is a simple linear change. +> * _ratio_ - (0-65535) where 65535 will return the original color and 0 will return white. + +### void Darken(uint16_t delta); +Darken will adjust the color by the given delta toward black. +NOTE: This is a simple linear change. +> * _delta_ - (0-65535) the amount to dim the color by. + +### void Lighten(uint16_t delta); +Lighten will adjust the color by the given delta toward white. +NOTE: This is a simple linear change. +> * _delta_ - (0-65535) the amount to lighten the color by. + +### static Rgb48Color LinearBlend(Rgb48Color left, Rgb48Color right, float progress); +This will blend between two colors by the amount defined by the progress variable. +> * _left_ - the color to start the blend at. +> * _right_ - the color to end the blend at. +> * _progress_ - (0.0f - 1.0f) value where 0.0f will return left and 1.0f will return right and a value between will blend the color weighted linearly between them. +This is a static function, which means you need to call it scoped to the object class and not an instance like... +``` + Rgb48Color results = Rgb48Color::LinearBlend(Rgb48Color(255,0,0), Rgb48Color(0,255,0), 0.33f); +``` + +### static Rgb48Color LinearBlend(Rgb48Color left, Rgb48Color right, uint8_t progress); +This will blend between two colors by the amount defined by the progress variable. +> * _left_ - the color to start the blend at. +> * _right_ - the color to end the blend at. +> * _progress_ - (0 - 255) value where 0 will return left and 255 will return right and a value between will blend the color weighted linearly between them. +This is a static function, which means you need to call it scoped to the object class and not an instance like... +``` + Rgb48Color results = Rgb48Color::LinearBlend(Rgb48Color(255,0,0), Rgb48Color(0,255,0), 85); +``` + +### static Rgb48Color BilinearBlend(Rgb48Color c00, Rgb48Color c01, Rgb48Color c10, Rgb48Color c11, float x, float y); +This will blend between four colors by the amount defined by 2d weighting values. +> * _c00_ - upper left quadrant color +> * _c01_ - upper right quadrant color +> * _c10_ - lower left quadrant color +> * _c11_ - lower right quadrant color +> * _x_ - unit value (0.0 - 1.0) that defines the blend progress in horizontal space +> * _y_ - unit value (0.0 - 1.0) that defines the blend progress in vertical space \ No newline at end of file