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（769862113）Construct a Brush class that holds the given color information.
Optional, one of the values Brush.Solid, Brush.Linear, Brush.Radial, Brush.Pattern, or a well-formed CSS string describing a solid color brush. No parameter defaults to a Brush.Solid with a color description of 'black'.
Gets or sets the color of a solid Brush. The default value is 'black'. The value must be a valid CSS color string.
Gets or sets a Map holding all of the color stops used in this gradient, where the key is a number, the fractional distance between 0 and 1 (inclusive), and where the corresponding value is a color string.
Call addColorStop in order to add color stops to this brush. This property value may be null if no gradient stops have been defined.
Gets or sets the ending location for a linear or radial gradient. A Spot value specifies a relative point in the object's GraphObject.naturalBounds. The default value is Spot.BottomCenter for linear gradients and Spot.Center for radial gradients.
Gets or sets the radius of a radial brush at the end location. The default value is NaN.
Gets or sets the pattern of a brush of type Brush.Pattern.
Gets or sets the starting location for a linear or radial gradient. A Spot value specifies a relative point in the object's GraphObject.naturalBounds. The default value is Spot.TopCenter for linear gradients and Spot.Center for radial gradients.
Gets or sets the radius of a radial brush at the start location. The default value is 0.
Gets or sets the type of brush. The default value is Brush.Solid. The value must be one of: Brush.Solid, Brush.Linear, Brush.Radial, Brush.Pattern. If the new value is a linear or radial brush type, and if the start or end spots are not specific spots, they are changed to be specific spots, depending on the type of brush.
Specify a particular color at a particular fraction of the distance. If the type is Brush.Solid, change the type to Brush.Linear. You should have a color stop at 0 and a color stop at 1. You should not have duplicate color stop values at the same fractional distance.
A number between 0 and 1 (inclusive).
A valid CSS color string.
this Brush
Create a copy of this Brush with the same values.
This static function takes a color and darkens it by 20% in the Lab color space. This is a convenience function which calls Brush.darkenBy.
A valid CSS color string.
A CSS string for the darkened color in RGBA.
Modifies all colors within this Brush, darkening them by some fraction.
Fraction to darken the colors by. Defaults to 0.2, must be between 0 and 1 (inclusive).
This Brush with modified color values.
This static function takes a color and darkens it.
A valid CSS color string
Fraction to darken the color by. Defaults to 0.2, must be between 0 and 1 (inclusive).
A CSS string for the darkened color in RGBA or HSLA.
This function determines whether this Brush is "dark."
This static function takes a color and determines whether it is "dark." Does not account for transparency.
Example usage:
myDiagram.nodeTemplate =
$(go.Node, "Auto",
$(go.Shape, "RoundedRectangle", { strokeWidth: 0 },
new go.Binding("fill", "color")),
$(go.TextBlock,
{ margin: 8 },
new go.Binding("stroke", "color", function (c) {
// Dark nodes use white text, light nodes use black text
return go.Brush.isDark(c) ? "white" : "black";
}),
new go.Binding("text", "key")
)
);A valid CSS color string or a Brush.
This static function returns true if a given color string is well-formed for drawing.
A color string to validate.
This static function takes a color and lightens it by 20% in the Lab color space. This is a convenience function which calls Brush.lightenBy.
A valid CSS color string.
A CSS string for the lightened color in RGBA.
Modifies all colors within this Brush, lightening them by some fraction.
Fraction to lighten the colors by. Defaults to 0.2, must be between 0 and 1 (inclusive).
This Brush with modified color values.
This static function takes a color and lightens it.
A valid CSS color string.
Fraction to lighten the colors by. Defaults to 0.2, must be between 0 and 1 (inclusive).
A CSS string for the lightened color in RGBA or HSLA.
This static function takes two colors and mixes them together, using the (optionally) specified amount of the second color.
A valid CSS color string.
Another valid CSS color string to mix.
Fraction specifying how much color2 to mix into color1. Defaults to .5, must be between 0 and 1 (inclusive).
This static function can be used to generate a random color.
A number between 0 and 255, defaults to 128.
A number between 0 and 255, defaults to 255.
A color value in # hexadecimal format.
For lightening and darkening, used as a color-space value.
For lightening and darkening, used as a color-space value.
For linear gradient brushes, used as the value for Brush.type.
For pattern brushes, used as the value for Brush.type.
For radial gradient brushes, used as the value for Brush.type.
For simple, solid color brushes, used as the value for Brush.type.
（769862113）
A Brush holds color information and describes how to draw the inside of a Shape or the stroke of a shape or a TextBlock or the background of any GraphObject.
A Brush must not be modified once it has been assigned to a GraphObject, such as the Shape.fill or TextBlock.stroke or GraphObject.background. However, a Brush may be shared by multiple GraphObjects.