WPF入門(mén)(三)->幾何圖形之不規(guī)則圖形(PathGeometry) (2) 原文:WPF入門(mén)(三)->幾何圖形之不規(guī)則圖形(PathGeometry) (2)

上一節(jié)我們介紹了PathGeometry中LineSegment是點(diǎn)與點(diǎn)之間繪制的一條直線，那么我們這一節(jié)來(lái)看一下點(diǎn)與點(diǎn)之間繪制曲線ArcSegment

先來(lái)看一段代碼

<Window?x:Class="WPF.SimpleGraph.PathFill.Window1"
????????xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
????????xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
????????Title="Window1"?Height="300"?Width="300">
????<Canvas>
????????<Path?Stroke="DarkGray"?StrokeThickness="2">
????????????<Path.Data>
????????????????<PathGeometry>
????????????????????<PathFigure?StartPoint="40,40"?IsClosed="True">
????????????????????????<LineSegment?Point="40,130"></LineSegment>
????????????????????????<ArcSegment?Point="60,150"?Size="20,20"?></ArcSegment>
????????????????????????<LineSegment?Point="200,150"></LineSegment>
????????????????????????<ArcSegment?Point="220,130"?Size="20,20"></ArcSegment>
????????????????????????<LineSegment?Point="220,40"></LineSegment>
????????????????????????<ArcSegment?Point="200,20"?Size="20,20"></ArcSegment>
????????????????????????<LineSegment?Point="60,20"></LineSegment>
????????????????????????<ArcSegment?Point="40,40"?Size="20,20"></ArcSegment>
????????????????????</PathFigure>
????????????????</PathGeometry>
????????????</Path.Data>
????????</Path>
????</Canvas>
</Window>

執(zhí)行結(jié)果：

?

其中ArcSegment表示一條點(diǎn)到點(diǎn)之間的曲線

?

例如該代碼它

?

<PathFigure?StartPoint="40,40"?IsClosed="False">
????????????????????????<ArcSegment?Point="40,80"?Size="20,20"?></ArcSegment>
????????????????????</PathFigure>

?

它的效果是從點(diǎn)(40,40)到點(diǎn)(40,80)之間繪制一條曲線

ArcSegment的Size屬性表示該曲線的弧度及形狀，詳細(xì)弧度與值的關(guān)系請(qǐng)查考msdn

?

?

<LineSegment?Point="40,130"></LineSegment>
<ArcSegment?Point="60,150"?Size="20,20"?></ArcSegment>

該代碼表示畫(huà)一條從StartPoint到40,130的直線，再?gòu)?0,130到60,150的曲線

?

依次類(lèi)推，我們便可畫(huà)出一個(gè)弧形角的矩形。

posted on 2019-01-11 14:12 NET未來(lái)之路 閱讀(...) 評(píng)論(...) 編輯 收藏

轉(zhuǎn)載于:https://www.cnblogs.com/lonelyxmas/p/10254872.html

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