清除fillEllipse图形 [英] clear fillEllipse graphics
问题描述
我有这个功能，每隔10秒填充椭圆，
特定的x，y，w，h。
现在我想要做相反，使用定时器每30秒用给定的x，y
清除椭圆。
或者我把这些（x，y，w，h）放到一个数组？
稍后返回数组并用与
背景相同的颜色填充椭圆？
有没有简单的方法？
谢谢..
//用计时器绘制的示例代码
private void drawNote（int x，int y，int width，int height，
SolidBrush brush）
{
Graphics graphicGlobal = this.CreateGraphics（） ;
this.Show（）;
graphicGlobal.FillEllipse（画笔，x，y，宽度，高度）;
}
//绘制计时器
private void timer_note_Tick（object sender，EventArgs e）
{
SolidBrush colorBrush = new SolidBrush（Color.Cyan）;
SolidBrush colorBru sh2 =新的SolidBrush（Color.Magenta）;
drawNote（x_global，y_global，width_global，height_global，
colorBrush）;
drawNote（x_global + 15，y_global + 15，width_global，
height_global，colorBrush2）;
x_global = x_global + 30;
y_global = y_global + 30;
}
我认为你需要处理graphicGlobal 。
" Slickuser" < sl ********* @ gmail.comwrote in message
news：51 ********************* ************* @ d4g2000p rg.googlegroups.com ...
>我有这个函数将填充椭圆每隔10秒用
特定的x，y，w，h。
现在我想反过来，用给定的x，y清除椭圆
每隔30秒使用一次计时器。
或者我把这些（x，y，w，h）放到一个数组中？
后来去返回数组并用与
背景相同的颜色填充椭圆？
有简单的方法吗？
谢谢..
//用计时器绘制的示例代码
private void drawNote（int x，int y，int width，int高度，
SolidBrush画笔）
{
图形graphicGlobal = this.CreateGraphics（）;
this.Show （）;
graphicGlobal.FillEllipse（画笔，x，y，宽度，高度）;
}
//绘制计时器
private void timer_note_Tick（object sender，EventArgs e）
{
SolidBrush colorBrush =新的SolidBrush（Color.Cyan）;
SolidBrush colorBrush2 =新的SolidBrush（Color.Magenta）;
drawNote（x_global，y_global，width_global，height_global，
colorBrush）;
drawNote（x_global + 15，y_global + 15，width_global，
height_global，colorBrush2）;
x_global = x_global + 30;
y_global = y_global + 30;
}
" Slickuser"写道：
我有这个函数，每隔10秒填充椭圆，
特定的x，y，w，h。
现在我想要反过来，使用定时器每隔30秒用给定的x，y
清除椭圆。
或我把这些（x，y，w，h）放到一个数组中？
稍后返回数组并用与
背景相同的颜色填充椭圆？
有简单的方法吗？
谢谢..
//用于绘制的示例代码计时器
private void drawNote（int x，int y，int width，int height，
SolidBrush brush）
{
图形graphicGlobal = this.CreateGraphics（）;
this.Show（）;
graphicGlobal.FillEllipse（brush，x， y，宽度，高度）;
}
//绘制计时器
private void timer_note_Tick（对象寄件人，EventArgs e）
{
SolidBrush colorBrush = new SolidBrush（Color.Cyan）;
SolidBrush colorBrush2 = new SolidBrush（Color.Magenta） ;
drawNote（x_global，y_global，width_global，height_global，
colorBrush）;
drawNote（x_global + 15，y_global + 15，width_global，
height_global，colorBrush2）;
x_global = x_global + 30;
y_global = y_global + 30;
}
昨天在你的帖子中重读你的建议。看起来你好像是b $ b回到绘画活动之外的绘图。
如果我这样使用，我需要一些如何传递PaintEvents来绘制。
这就是为什么我选择这样做的方式。
11月30日凌晨4:53，Family Tree Mike
< FamilyTreeM ... @ discussion.microsoft.comwrote：
" Slickuser"写道：
我有这个函数，它将每10秒填充一次椭圆，
特定的x，y，w，h。
现在我想要反过来，用给定的x，y
清除椭圆，每30秒使用一次定时器。
或者我把这些（x，y，w，h）放到一个数组中？
稍后返回数组并用与
背景？
有简单的方法吗？
谢谢..
//用于绘制的示例代码timer
private void drawNote（int x，int y，int width，int height，
SolidBrush brush）
{
Graphics graphicGlobal = this.CreateGraphics（）;
this.Show（）;
graphicGlobal.FillEllipse（brush，x，y，width，height）;
}
//绘制计时器
private void timer_note_Tick（object sender，EventArgs e）
{
SolidBrush colorBrush = new SolidBrush（Color.Cyan）;
SolidBrush colorBrush2 =新的SolidBrush（Color.Magenta）;
drawNote（x_global，y_global，width_global，height_global，
colorBrush）;
drawNote（x_global + 15，y_global + 15，width_global，
height_global，colorBrush2）;
x_global = x_global + 30;
y_global = y_global + 30;
}
昨天在你的帖子中重读你的建议。看起来你好像是b $ b回到绘画事件之外的绘图.-隐藏引用的文字 -
- 显示引用的文字 -
I have this function that will fill the ellipse every 10 seconds with
specific x,y,w,h.
Now I want do the the reverse, to clear the ellipse with given x,y
using Timer at every 30s.
Or I have put these (x,y,w,h) to an array?
Later go back the array and fill ellipse with the same color as
background?
Is there an easy way?
Thanks..
//Sample code that draw with timer
private void drawNote(int x, int y, int width, int height,
SolidBrush brush)
{
Graphics graphicGlobal = this.CreateGraphics();
this.Show();
graphicGlobal.FillEllipse(brush, x, y, width, height);
}
// Timer to draw
private void timer_note_Tick(object sender, EventArgs e)
{
SolidBrush colorBrush = new SolidBrush(Color.Cyan);
SolidBrush colorBrush2 = new SolidBrush(Color.Magenta);
drawNote(x_global, y_global, width_global, height_global,
colorBrush);
drawNote(x_global + 15, y_global + 15, width_global,
height_global, colorBrush2);
x_global = x_global + 30;
y_global = y_global + 30;
}
I think you need to dispose of graphicGlobal.
"Slickuser" <sl*********@gmail.comwrote in message
news:51**********************************@d4g2000p rg.googlegroups.com...>I have this function that will fill the ellipse every 10 seconds with
specific x,y,w,h.
Now I want do the the reverse, to clear the ellipse with given x,y
using Timer at every 30s.
Or I have put these (x,y,w,h) to an array?
Later go back the array and fill ellipse with the same color as
background?
Is there an easy way?
Thanks..
//Sample code that draw with timer
private void drawNote(int x, int y, int width, int height,
SolidBrush brush)
{
Graphics graphicGlobal = this.CreateGraphics();
this.Show();
graphicGlobal.FillEllipse(brush, x, y, width, height);
}
// Timer to draw
private void timer_note_Tick(object sender, EventArgs e)
{
SolidBrush colorBrush = new SolidBrush(Color.Cyan);
SolidBrush colorBrush2 = new SolidBrush(Color.Magenta);
drawNote(x_global, y_global, width_global, height_global,
colorBrush);
drawNote(x_global + 15, y_global + 15, width_global,
height_global, colorBrush2);
x_global = x_global + 30;
y_global = y_global + 30;
}
"Slickuser" wrote:
I have this function that will fill the ellipse every 10 seconds with
specific x,y,w,h.
Now I want do the the reverse, to clear the ellipse with given x,y
using Timer at every 30s.
Or I have put these (x,y,w,h) to an array?
Later go back the array and fill ellipse with the same color as
background?
Is there an easy way?
Thanks..
//Sample code that draw with timer
private void drawNote(int x, int y, int width, int height,
SolidBrush brush)
{
Graphics graphicGlobal = this.CreateGraphics();
this.Show();
graphicGlobal.FillEllipse(brush, x, y, width, height);
}
// Timer to draw
private void timer_note_Tick(object sender, EventArgs e)
{
SolidBrush colorBrush = new SolidBrush(Color.Cyan);
SolidBrush colorBrush2 = new SolidBrush(Color.Magenta);
drawNote(x_global, y_global, width_global, height_global,
colorBrush);
drawNote(x_global + 15, y_global + 15, width_global,
height_global, colorBrush2);
x_global = x_global + 30;
y_global = y_global + 30;
}
Reread the advise to you in your post yesterday. It looks like you are
going back to drawing graphics outside the paint event.
If I use that way, I need some how to pass in a PaintEvents to draw.
That how why I choose doing this way.
On Nov 30, 4:53 am, Family Tree Mike
<FamilyTreeM...@discussions.microsoft.comwrote:"Slickuser" wrote:I have this function that will fill the ellipse every 10 seconds with
specific x,y,w,h.
Now I want do the the reverse, to clear the ellipse with given x,y
using Timer at every 30s.
Or I have put these (x,y,w,h) to an array?
Later go back the array and fill ellipse with the same color as
background?
Is there an easy way?
Thanks..
//Sample code that draw with timer
private void drawNote(int x, int y, int width, int height,
SolidBrush brush)
{
Graphics graphicGlobal = this.CreateGraphics();
this.Show();
graphicGlobal.FillEllipse(brush, x, y, width, height);
}
// Timer to draw
private void timer_note_Tick(object sender, EventArgs e)
{
SolidBrush colorBrush = new SolidBrush(Color.Cyan);
SolidBrush colorBrush2 = new SolidBrush(Color.Magenta);
drawNote(x_global, y_global, width_global, height_global,
colorBrush);
drawNote(x_global + 15, y_global + 15, width_global,
height_global, colorBrush2);
x_global = x_global + 30;
y_global = y_global + 30;
}
Reread the advise to you in your post yesterday. It looks like you are
going back to drawing graphics outside the paint event.- Hide quoted text -
- Show quoted text -
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