颜色 [英] Colors
问题描述
是否有一种简单的方法可以获得较浅或较暗的颜色版本？
我可以转换为HSL并更改L值然后转换回来。
或者我可以将RGB值上调或下调预定量。
有关最佳方法的建议吗？谢谢。
Jerry
Is there a simple way to get a lighter or darker version of a color?
I can convert to HSL and change the L value and then convert back.
Or I can just bump the RGB values up or down by a predetermined amount.
Any advice on the best way? Thanks.
Jerry
推荐答案
Jerry Camel< rl ***** @ msn.com> ;写在
新闻：#f ************** @ TK2MSFTNGP12.phx.gbl：
Jerry Camel <rl*****@msn.com> wrote in
news:#f**************@TK2MSFTNGP12.phx.gbl:
是否有获得浅色或深色版本的简单方法？
我可以转换为HSL并更改L值然后转换回来。
或者我只需按预定的数量上调或下调RGB值。
Is there a simple way to get a lighter or darker version
of a color?
I can convert to HSL and change the L value and then convert back.
Or I can just bump the RGB values up or down by a predetermined
amount.
试试这个。
共享函数混合（ByVal C1 As Color， ByVal C2 As Color，ByVal P1 As
Single）As Color
Dim R1 As Single = C1.R * P1
Dim G1 As Single = C1.G * P1
Dim B1单身= C1.B * P1
Dim R2单身= C2.R *（1 - P1）
Dim G2单身= C2.G *（1 - P1）
Dim B2单身= C2.B *（1 - P1）
Blend = Color.FromArgb（CInt（R1 + R2），CInt（G1 + G2），CInt（B1 + B2））
结束功能
共享功能增亮（ByVal C As Color，ByVal Percent as Single）As
颜色
如果百分比< = 0则返回C
Dim HSL As new colorHSL（C）
Dim L As Single
L = HSL.Lum +（HSLMAX *百分比）
如果L> HSLMAX然后L = HSLMAX
HSL.Lum = L
亮= HSL.ColorValue
结束功能
共享功能变暗（ByVal C为颜色，ByVal百分比为单）为
颜色
如果百分比< = 0则返回C
Dim HSL As new colorHSL（C）
Dim L As Single
L = HSL.Lum - （HSLMAX *百分比）
如果L< 0然后L = 0
HSL.Lum = L
变暗= HSL.ColorValue
结束功能
kpg
try this.
Shared Function Blend(ByVal C1 As Color, ByVal C2 As Color, ByVal P1 As
Single) As Color
Dim R1 As Single = C1.R * P1
Dim G1 As Single = C1.G * P1
Dim B1 As Single = C1.B * P1
Dim R2 As Single = C2.R * (1 - P1)
Dim G2 As Single = C2.G * (1 - P1)
Dim B2 As Single = C2.B * (1 - P1)
Blend = Color.FromArgb(CInt(R1 + R2), CInt(G1 + G2), CInt(B1 + B2))
End Function
Shared Function Brighten(ByVal C As Color, ByVal Percent As Single) As
Color
If Percent <= 0 Then Return C
Dim HSL As New colorHSL(C)
Dim L As Single
L = HSL.Lum + (HSLMAX * Percent)
If L > HSLMAX Then L = HSLMAX
HSL.Lum = L
Brighten = HSL.ColorValue
End Function
Shared Function Darken(ByVal C As Color, ByVal Percent As Single) As
Color
If Percent <= 0 Then Return C
Dim HSL As New colorHSL(C)
Dim L As Single
L = HSL.Lum - (HSLMAX * Percent)
If L < 0 Then L = 0
HSL.Lum = L
Darken = HSL.ColorValue
End Function
kpg
你在哪里获得ColorHSL？那是你自己的班级吗？
" kpg" < ipost @ thereforeiam>在消息中写道
news：Xn ******************************* @ 127.0.0.1。 。
Where are you getting the ColorHSL? Is that your own class?
"kpg" <ipost@thereforeiam> wrote in message
news:Xn*******************************@127.0.0.1.. .
Jerry Camel< rl ***** @ msn.com>在
新闻中写道：#f ************** @ TK2MSFTNGP12.phx.gbl：
Jerry Camel <rl*****@msn.com> wrote in
news:#f**************@TK2MSFTNGP12.phx.gbl:
有没有一种简单的方法可以获得一个颜色较浅或较暗的颜色？
我可以转换为HSL并更改L值然后转换回来。
或者我可以碰到它RGB值上升或下降预定的数量。
Is there a simple way to get a lighter or darker version
of a color?
I can convert to HSL and change the L value and then convert back.
Or I can just bump the RGB values up or down by a predetermined
amount.
试试这个。
共享功能混合（ByVal C1作为颜色，ByVal C2作为颜色，ByVal P1 As
单色）作为颜色
Dim R1单个= C1.R * P1
Dim G1单个= C1.G * P1
Dim B1单个= C1 .B * P1
Dim R2单一= C2.R *（1 - P1）
Dim G2单一= C2.G *（1 - P1）
Dim B2单一= C2 .B *（1 - P1）
Blend = Color.FromArgb（CInt（R1 + R2），CInt（G1 + G2），CInt（B1 + B2））
结束功能
共享功能增亮（ByVal C为颜色，ByVal百分比为单）为
颜色
如果百分比< = 0则返回C
Dim HSL为新颜色HSL（C）
HSL.Lum = L
亮度= HSL.ColorValue
结束功能
共享功能变暗（ByVal C为颜色，ByVal百分比为单）如颜色
如果百分比< = 0则返回C
Dim HSL为新颜色HSL（C）
Dim L As Single
L = HSL.Lum - （HSLMAX *百分比）
如果L< 0然后L = 0
HSL.Lum = L
Darken = HSL.ColorValue
结束功能
kpg
try this.
Shared Function Blend(ByVal C1 As Color, ByVal C2 As Color, ByVal P1 As
Single) As Color
Dim R1 As Single = C1.R * P1
Dim G1 As Single = C1.G * P1
Dim B1 As Single = C1.B * P1
Dim R2 As Single = C2.R * (1 - P1)
Dim G2 As Single = C2.G * (1 - P1)
Dim B2 As Single = C2.B * (1 - P1)
Blend = Color.FromArgb(CInt(R1 + R2), CInt(G1 + G2), CInt(B1 + B2))
End Function
Shared Function Brighten(ByVal C As Color, ByVal Percent As Single) As
Color
If Percent <= 0 Then Return C
Dim HSL As New colorHSL(C)
Dim L As Single
L = HSL.Lum + (HSLMAX * Percent)
If L > HSLMAX Then L = HSLMAX
HSL.Lum = L
Brighten = HSL.ColorValue
End Function
Shared Function Darken(ByVal C As Color, ByVal Percent As Single) As
Color
If Percent <= 0 Then Return C
Dim HSL As New colorHSL(C)
Dim L As Single
L = HSL.Lum - (HSLMAX * Percent)
If L < 0 Then L = 0
HSL.Lum = L
Darken = HSL.ColorValue
End Function
kpg
Rlrcstr< rl ***** @ msn.com>写在
新闻：ee ************** @ TK2MSFTNGP12.phx.gbl：
Rlrcstr <rl*****@msn.com> wrote in
news:ee**************@TK2MSFTNGP12.phx.gbl:
你在哪里得到ColorHSL？这是你自己的课吗？
Where are you getting the ColorHSL? Is that your own
class?
是的。抱歉。这是一堂课，但我没有写。
我找不到作者的名字，所以我犹豫
发布它它的整体性。这是相当老的，我认为
我从psc或类似的东西得到它 - 但重新搜索转向
没什么。
如何令人尴尬。
kpg
Yes. Sorry. It is a class, but I did not write it.
I can''t locate the authors name, so I am hesitant to
post it in its entirity. It is rather old and I think
I got it from psc or the like - but a re-search turned
up nothing.
How embarrassing.
kpg
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