vb.netpen的简单介绍

vb.net中绘制圆的代码是什么?

Dim myGraphics As Graphics = Me.CreateGraphics '声明并创建一个Graphics对象

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Dim myPen As Pen = New Pen(Drawing.Color.Black, 3) '声明一个画笔,并设定颜色和粗细

myPen.DashStyle = Drawing.Drawing2D.DashStyle.Solid '线型,Solid是实线

myGraphics.DrawEllipse(myPen, 200, 200, 100, 100) '画圆,数值依次是:横坐标、纵坐标、宽度和高度(宽高相同为正圆,否则为椭圆)

myGraphics.Dispose() '释放Graphics占用的资源

vb.net 动画

可以啊

me_paint 事件中添加画图语句

me.creategraphic.drawellipse(pen,center,r,r)

center 是圆心位置point 类型数据

添加一个timer控件 控制动画

在控件的tick事件中添加语句

center.x+=1

center.y=center.x * 10+50

me.invalidate '(以一次函数y=10x+50运动,可以换成你需要的运动轨迹)

用VB.NET绘制GDI图形

下面的例子通过重载Form 窗体的OnPaint()方法绘制GDI图形Protected Overrides Sub onpaint(ByVal e As System Windows Forms PaintEventArgs)注释 /////////////绘制任意直线Dim g As Graphics = e GraphicsDim mypen As Pen = New Pen(Color Red )g DrawLine(mypen )注释 /////////////绘制矩形(任意直线构成的封闭图形)Dim point As PointF = New PointF( F F)Dim point As PointF = New PointF( F F)Dim point As PointF = New PointF( F F)Dim point As PointF = New PointF( F F)Dim curvepoints As PointF() = {point point point point }g DrawPolygon(New Pen(Color Blue ) curvepoints)注释 ////////////文本表示Dim FFamily As FontFamily = New FontFamily( Arial )Dim font As Font = New Font(FFamily FontStyle Bold FontStyle Italic GraphicsUnit Pixel)Dim text As String = I love you! Dim solidbrush As SolidBrush = New SolidBrush(Color Red)Dim pr As PointF = New PointF( )e Graphics DrawString(text font solidbrush pr)注释 ////////////平面绘制Dim rec As RectangleF = New RectangleF( )g DrawPie(mypen rec )注释 ///////////封闭图形 应该是个圆g DrawClosedCurve(mypen curvepoints Drawing Drawing D FillMode Alternate)注释 ///////////大家自己试试看吧g DrawArc(mypen )g DrawCurve(mypen curvepoints)g DrawBezier(mypen )g DrawBeziers(mypen curvepoints)注释 //////////这可是一个圆Dim rec As RectangleF = New RectangleF( )g DrawEllipse(mypen rec )注释 //////////这是一个椭圆Dim rec As RectangleF = New RectangleF( )g DrawEllipse(mypen rec )End Sub 这些是我自己试验出来的 当然了 还有好多 我只是开了一个头 大家要是发现什么好东东 别忘了通知一下 ) lishixinzhi/Article/program/net/201311/11800

vb和vb.net 在picturebox 中绘制直线如何绘制

绘图是系统内部操作的,不需要懂原理

方法就在那里,只有会用和不会用,你的代码告诉它绘制,它就会绘制。它(方法)究竟如何去绘制的并不是重点,反正它会绘制。

drawline(绘线)方法很简单,第一个参数是pen,它确定线条的颜色、宽度和样式。第二、第三个参数都是point类型,确定两个点的位置,绘制直线。


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