Reference for unit 'GraphUtil': Procedures and functions

AntiAliasedStretchDrawBitmap

Stretch-draws a bitmap using anti-aliased drawing.

BitmapGrayscale

Converts a bitmap to grayscale taking filtering parameters into account.

ColorAdjustLuma

ColorHLSToRGB

ColorRGBToHLS

Converts an RGB color value to Hue, Luminance, and Saturation values.

ColorToGray

Converts a Lazarus TColor value to its grayscale equivalent.

ColorToHLS

Converts a TColor value to its Hue, Lightness, and Saturation values.

ColorToHSV

Converts a TColor value to Hue, Saturation, and brightness Values.

DrawArrow

Draws a line with an arrow at the specified location on a canvas.

DrawGradientWindow

Draws a window with a Title using gradient coloring.

DrawVerticalGradient

Draws a gradient from top to bottom with parabolic color variation.

FloodFill

A simple first-in-first-out circular buffer (queue) for flood-filling contiguous voxels.

GetHighLightColor

GetHValue

Gets the Hue value from the specified TColor value.

GetShadowColor

GetSValue

Gets the Saturation value from the specified TColor value.

GetVValue

Gets the brightness value from the specified TColor value.

HLStoColor

Converts Hue, Lightness, and Saturation values to a TColor value.

HLStoRGB

Converts Hue, Lightness, and Saturation values to a RGB color values.

HSVRangeToColor

HSVToColor

Converts Hue, Saturation, and brightness values to a TColor value.

HSVtoRGB

Converts Hue, Saturation, and brightness values to RGB values.

HSVtoRGBQuad

Converts Hue, Saturation, and brightness values to a TRGBQuad value .

HSVtoRGBRange

HSVtoRGBTriple

Converts Hue, Saturation, and brightness values to a TRGBTriple value .

NormalizeRect

Ensures that coordinates in the rectangle are in the correct order.

RGBtoHLS

Converts RGB color values to Hue, Lightness, and Saturation values.

RGBToHSV

Converts RGB values to Hue, Saturation, and brightness values.

RGBtoHSVRange

ScaleImg

Scales the specified bitmap image to the required dimensions.

WaveTo

Draws a horizontal or vertical wave at the specified position to the given device context.