nuget
Extensions function for the gdi+ color type.
GDIColors
01 Syntax
Microsoft.VisualBasic.Imaging.GDIColors
02 Methods
| Name | Overloads | Summary |
|---|---|---|
| Middle | 1 | x -> y：返回两个颜色之间的中间的颜色，这个函数是某些插值操作所需要的 |
| Alpha | 2 | 调整所输入的这一组颜色的alpha值 |
| Average | 1 | Create an average color via the average value of the A,R,G,B channels |
| Lighten | 1 | Creates a new light color object for the control from the specified color and lightens it by the specified percentage. |
| Darken | 1 | Makes the specified color darker: creates a new dark color object for the control from the specified color and darkens it by the specified percentage. |
| RGBExpression | 1 | rgb(r,g,b) |
| ARGBExpression | 1 | rgb(a,r,g,b) |
| Rgba | 1 | html rgba color |
| __getDotNetColors | 1 | Reads all of the color property from Color and then creates the color dictionary based on the property name. |
| ToColor | 1 | Color.Name, rgb(a,r,g,b) |
| TranslateColor | 1 | 这个函数会尝试用不同的模式来解析颜色表达式 |
| IsColorExpression | 1 | test of the given string expression is color value or not? |
| IsNullOrEmpty | 1 | Determine that the target color value is a empty variable.(判断目标颜色值是否为空值) |
| IsTransparent | 1 | Check of the given color value is transparent color? |
| Equals | 1 | 分别比较A,R,G,B这些属性值来判断这样个颜色对象值是否相等 |
| EuclideanDistance | 1 | Evaluate the color distance via euclidean distance |
| Red | 1 | |
| Green | 1 | |
| Blue | 1 | |
| HTMLColors | 1 | |
| Greyscale | 1 | |
| AsDefaultColor | 1 |
03 Properties
| Name | Overloads | Summary |
|---|---|---|
| AllDotNetPrefixColors | 1 | Gets all of the known name color from the Color object its shared property. |
| ChartColors | 1 | 经过人工筛选的颜色，不会出现过白或者过黑，过度相似的情况 |
| AllDotNetColorNames | 1 |
04 Fields
| Name | Overloads | Summary |
|---|---|---|
| __allDotNETPrefixColors | 1 | Key都是小写的 |
| rgbExprValues | 2 | Regex expression for parsing the rgb(a,r,g,b) expression of the color.(解析颜色表达式里面的RGB的正则表达式) |
| rgbExpr | 1 |
05 Members
Middle(
Color, Color)**x** -> **y**：返回两个颜色之间的中间的颜色，这个函数是某些插值操作所需要的
Parameters
| Name | Type | Description |
|---|---|---|
x | Color | - |
y | Color | - |
Alpha(
IEnumerable(Of Color), Int32)调整所输入的这一组颜色的alpha值
Parameters
| Name | Type | Description |
|---|---|---|
colors | IEnumerable(Of Color) | - |
alphaValue% | Int32 | - |
Alpha(
Color, Int32)adjust the color alpha value, alpha=[0, 255]
Parameters
| Name | Type | Description |
|---|---|---|
c | Color | - |
alphaValue% | Int32 | - |
Average(
IEnumerable(Of Color))Create an average color via the average value of the A,R,G,B channels
Parameters
| Name | Type | Description |
|---|---|---|
colors | IEnumerable(Of Color) | - |
Lighten(
Color, Single)Creates a new light color object for the control from the specified color and lightens it by the specified percentage.
Parameters
| Name | Type | Description |
|---|---|---|
base | Color | The |
percent! | Single | The percentage to lighten the specified |
Returns
A Color that represents the light color on the control.
Darken(
Color, Single)Makes the specified color darker: creates a new dark color object for the control from the specified color and darkens it by the specified percentage.
Parameters
| Name | Type | Description |
|---|---|---|
base | Color | The |
percent! | Single | The percentage to darken the specified |
Returns
A Color that represent the dark color on the control.
RGBExpression(
Color)rgb(r,g,b)
Parameters
| Name | Type | Description |
|---|---|---|
c | Color | - |
ARGBExpression(
Color)rgb(a,r,g,b)
Parameters
| Name | Type | Description |
|---|---|---|
c | Color | - |
Rgba(
Color)html rgba color
Remarks
| RGBA 成分 | 含义 | 取值范围 |
|---|---|---|
| R (Red) | 红色通道的强度 | 0 - 255 的整数 或 0% - 100% 的百分比 |
| G (Green) | 绿色通道的强度 | 0 - 255 的整数 或 0% - 100% 的百分比 |
| B (Blue) | 蓝色通道的强度 | 0 - 255 的整数 或 0% - 100% 的百分比 |
| A (Alpha) | 透明度（或不透明度） | 0.0（完全透明）到 1.0（完全不透明）之间的小数 |
Parameters
| Name | Type | Description |
|---|---|---|
c | Color | - |
__getDotNetColors
Reads all of the color property from Color and then creates the color dictionary based on the property name.
ToColor(
String, Color, Boolean, Boolean)Color.Name, rgb(a,r,g,b)
Parameters
| Name | Type | Description |
|---|---|---|
str | String | 颜色表达式或者名称 |
TranslateColor(
String, Boolean, Boolean)这个函数会尝试用不同的模式来解析颜色表达式
Parameters
| Name | Type | Description |
|---|---|---|
exp | String | RGB expression/html color/ole color, etc |
Returns
Color.Black will be return if the exp is null or empty,
IsColorExpression(
String)test of the given string expression is color value or not?
Parameters
| Name | Type | Description |
|---|---|---|
expression | String | the color expression string for make asserts:
|
IsNullOrEmpty(
Color)Determine that the target color value is a empty variable.(判断目标颜色值是否为空值)
IsTransparent(
Color)Check of the given color value is transparent color?
Parameters
| Name | Type | Description |
|---|---|---|
c | Color | - |
Equals(
Color, Color, Int32)分别比较A,R,G,B这些属性值来判断这样个颜色对象值是否相等
Parameters
| Name | Type | Description |
|---|---|---|
a | Color | - |
b | Color | - |
EuclideanDistance(
Color, Color)Evaluate the color distance via euclidean distance
Parameters
| Name | Type | Description |
|---|---|---|
a | Color | - |
b | Color | - |
AllDotNetPrefixColors
Gets all of the known name color from the Color object its shared property.
ChartColors
经过人工筛选的颜色，不会出现过白或者过黑，过度相似的情况
__allDotNETPrefixColors
Key都是小写的
rgbExprValues
Regex expression for parsing the rgb(a,r,g,b) expression of the color.(解析颜色表达式里面的RGB的正则表达式)
rgbExprValues
rgbExpr
AllDotNetColorNames
Red(
IEnumerable(Of Color))Green(
IEnumerable(Of Color))Blue(
IEnumerable(Of Color))HTMLColors(
IEnumerable(Of Color))Greyscale(
Single, Int32)AsDefaultColor(
Color)