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資源簡介

基于GDI+的圖元繪制拾取 C#實現(xiàn) 程序效果如博客http://blog.csdn.net/small_fish__/article/details/7394304所見

資源截圖

代碼片段和文件信息 

using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Drawing;
using?System.Drawing.Drawing2D;
using?System.Windows.Forms;

namespace?DrawmetaGraph
{
????class?Circle?:?metaTypeGraph
????{

????????private?Graphics?graphics;
????????private?int?radius;

????????//構(gòu)造方法
????????public?Circle（Graphics?graphics?Point?upLeftCoordinate）
????????{
????????????this.fillColor?=?Color.Red;??????//默認(rèn)填充色
????????????this.radius?=?25;
????????????this.graphics?=?graphics;
????????????this.upLeftCoordinate?=?upLeftCoordinate;
????????????
????????}

????????//重寫的鼠標(biāo)點擊事件響應(yīng)
????????public?override?void?MouseDown（MouseEventArgs?e）
????????{
????????????if?（e.Button?==?MouseButtons.Left）
????????????{
????????????????isSelected?=?inSidePolygon（new?Point（e.X?e.Y））;
????????????}
????????????else
????????????{
????????????????isSelected?=?false;
????????????}
????????????draw（）;

????????}

????????//判斷鼠標(biāo)是否選中圖元
????????private?bool?inSidePolygon（Point?p）
????????{
????????????int?dx?=?p.X?-?（upLeftCoordinate.X?+?radius）;
????????????int?dy?=?p.Y?-?（upLeftCoordinate.Y?+?radius）;
????????????if?（（dx*dx?+?dy*dy）?????????????????return?true;
????????????else
????????????????return?false;
????????}

????????//重寫繪畫的方法
????????public?override?void?draw（）
????????{
????????????if?（isSelected?==?true）
????????????{
????????????????graphics.FillPie（new?SolidBrush（choosedColor）?upLeftCoordinate.X?upLeftCoordinate.Y?2*radius?2*radius?0?360）;
????????????}
????????????else
????????????{
????????????????graphics.FillPie（new?SolidBrush（fillColor）?upLeftCoordinate.X??upLeftCoordinate.Y??2*radius?2*radius?0?360）;
????????????}
????????}


????????public?int?Radius
????????{
????????????get?{?return?radius;?}
????????????set?{?radius?=?value;?}
????????}
????????
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????17408??2012-03-06?13:17??DrawmetaGraph\DrawmetaGraph\bin\Debug\DrawmetaGraph.exe

?????文件??????54784??2012-03-06?13:17??DrawmetaGraph\DrawmetaGraph\bin\Debug\DrawmetaGraph.pdb

?????文件??????11600??2012-03-24?20:54??DrawmetaGraph\DrawmetaGraph\bin\Debug\DrawmetaGraph.vshost.exe

?????文件????????490??2009-08-31?00:40??DrawmetaGraph\DrawmetaGraph\bin\Debug\DrawmetaGraph.vshost.exe.manifest

?????文件???????1991??2012-03-06?12:27??DrawmetaGraph\DrawmetaGraph\Circle.cs

?????文件???????3885??2012-03-04?19:17??DrawmetaGraph\DrawmetaGraph\DrawmetaGraph.csproj

?????文件???????4544??2012-03-06?13:17??DrawmetaGraph\DrawmetaGraph\Form1.cs

?????文件??????11885??2012-03-06?13:14??DrawmetaGraph\DrawmetaGraph\Form1.Designer.cs

?????文件???????5817??2012-03-06?13:14??DrawmetaGraph\DrawmetaGraph\Form1.resx

?????文件???????2819??2012-03-04?20:47??DrawmetaGraph\DrawmetaGraph\GraghList.cs

?????文件????????588??2012-03-04?20:49??DrawmetaGraph\DrawmetaGraph\metaTypeGraph.cs

?????文件???????4440??2012-03-04?16:18??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6238??2012-03-06?13:17??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????787??2012-03-24?20:54??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DrawmetaGraph.csproj.FileListAbsolute.txt

?????文件??????17408??2012-03-06?13:17??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DrawmetaGraph.exe

?????文件????????180??2012-03-06?13:14??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DrawmetaGraph.Form1.resources

?????文件??????54784??2012-03-06?13:17??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DrawmetaGraph.pdb

?????文件????????180??2012-03-04?19:17??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\DrawmetaGraph.Properties.Resources.resources

?????文件????????232??2012-03-06?13:14??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\GenerateResource.read.1.tlog

?????文件????????586??2012-03-06?13:14??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\GenerateResource.write.1.tlog

?????文件???????7897??2012-03-04?16:20??DrawmetaGraph\DrawmetaGraph\obj\x86\Debug\ResolveAssemblyReference.cache

?????文件????????494??2012-03-04?09:40??DrawmetaGraph\DrawmetaGraph\Program.cs

?????文件???????1358??2012-03-04?09:40??DrawmetaGraph\DrawmetaGraph\Properties\AssemblyInfo.cs

?????文件???????2876??2012-03-04?09:40??DrawmetaGraph\DrawmetaGraph\Properties\Resources.Designer.cs

?????文件???????5612??2012-03-04?09:40??DrawmetaGraph\DrawmetaGraph\Properties\Resources.resx

?????文件???????1098??2012-03-04?09:40??DrawmetaGraph\DrawmetaGraph\Properties\Settings.Designer.cs

?????文件????????249??2012-03-04?09:40??DrawmetaGraph\DrawmetaGraph\Properties\Settings.settings

?????文件???????2285??2012-03-06?12:27??DrawmetaGraph\DrawmetaGraph\SelectBox.cs

?????文件???????3778??2012-03-06?12:46??DrawmetaGraph\DrawmetaGraph\Triangle.cs

?????文件??????17408??2012-03-05?15:32??DrawmetaGraph\DrawmetaGraph.exe

............此處省略15個文件信息

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