C# 制作以动画的方式显示图像[2]

代码:

private void button_Click(object sender EventArgs e)

{

try

{

int width = thispictureBoxWidth; //图像宽度

int height = thispictureBoxHeight; //图像高度

Graphics g = thispanelCreateGraphics();

gClear(ColorGray);

Bitmap bitmap = new Bitmap(width height);

int x = ;

while (x <= height / )

{

for (int i = ; i <= width ; i++)

{

bitmapSetPixel(i x MyBitmapGetPixel(i x));

}

for (int i = ; i <= width ; i++)

{

bitmapSetPixel(i height x MyBitmapGetPixel(i height x ));

}

x++;

thispanelRefresh();

gDrawImage (bitmap);

SystemThreadingThreadSleep();

}

}

catch (Exception ex)

{

MessageBoxShow(exMessage 信息提示);

}

}

三 以四周扩散的方式显示图像

原理: 首先设置图像显示的位置 然后按高度和宽度的比例循环输出 直到高度和宽度为原始大小

代码:

private void button_Click(object sender EventArgs e)

{

try

{

int width = thisMyBitmapWidth; //图像宽度

int height = thisMyBitmapHeight; //图像高度

//取得Graphics对象

Graphics g = thispanelCreateGraphics();

gClear(ColorGray); //初始为全灰色

for (int i = ; i <= width / ; i++)

{

int j = ConvertToInt (i*(ConvertToSingle(height) / ConvertToSingle(width)));

Rectangle DestRect = new Rectangle(width / i height/j * i *j);

Rectangle SrcRect = new Rectangle( MyBitmapWidth MyBitmapHeight);

gDrawImage(MyBitmap DestRect SrcRect GraphicsUnitPixel);

SystemThreadingThreadSleep();

}

}

catch (Exception ex)

{

MessageBoxShow(exMessage 信息提示);

}

}

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