diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e2fa2d..182ac49 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 
 macro(cm_example_project project_name)
-    target_link_libraries(${project_name} PRIVATE CMCore CMPlatform)
+    target_link_libraries(${project_name} PRIVATE CMCore CMPlatform CMUtil)
 
     if(UNIX)
         target_link_libraries(${project_name} PRIVATE dl)
@@ -53,4 +53,7 @@ cm_example_project(OSFontList)
 target_link_libraries(OSFontList PRIVATE CMUtil)
 
 add_executable(RuntimeAssetManagerTest RuntimeAssetManagerTest.cpp RuntimeAssetManager.h RAM_TestClass.h RAM_TestClass.cpp)
-cm_example_project(RuntimeAssetManagerTest)
\ No newline at end of file
+cm_example_project(RuntimeAssetManagerTest)
+
+add_executable(DistributionChart2D DistributionChart2D.cpp)
+cm_example_project(DistributionChart2D)
\ No newline at end of file
diff --git a/DistributionChart2D.cpp b/DistributionChart2D.cpp
new file mode 100644
index 0000000..b3be99c
--- /dev/null
+++ b/DistributionChart2D.cpp
@@ -0,0 +1,360 @@
+#include<hgl/type/StringList.h>
+#include<hgl/type/LoadStringList.h>
+#include<hgl/math/Vector.h>
+#include<hgl/util/imgfmt/tga.h>
+#include<hgl/io/FileOutputStream.h>
+#include<iostream>
+
+using namespace hgl;
+
+bool ParseLine(Vector2i *result,const UTF8String &str)
+{
+    if(!result)return(false);
+
+    if(str.Length()<=0)return(false);
+
+    const char *sp=str.c_str();
+    const char *cp;
+
+    if(*sp!='X')return(false);
+
+    sp+=2;
+    cp=hgl::strchr(sp,'Y');
+
+    if(!cp)return(false);
+
+    if(!hgl::stoi(sp,result->x))
+        return(false);
+
+    sp=cp+2;
+
+    cp=hgl::strchr(sp,'Z');
+
+    if(!cp)return(false);
+
+    if(!hgl::stoi(sp,result->y))
+        return(false);
+
+    return(true);
+}
+
+struct PositionStat
+{
+    uint count;
+
+    Vector2i minp,maxp;
+    Vector2i gap;
+
+    Vector2i *data;
+
+public:
+
+    PositionStat(const uint c)
+    {
+        count=c;
+
+        hgl_zero(minp);
+        hgl_zero(maxp);
+        hgl_zero(gap);
+
+        data=new Vector2i[count];
+
+        hgl_zero(data,count);
+    }
+
+    ~PositionStat()
+    {
+        delete[] data;
+    }
+};
+
+PositionStat *ToVector2i(const UTF8StringList &sl)
+{
+    const uint count=sl.GetCount();
+
+    PositionStat *ps=new PositionStat(count);
+
+    Vector2i *p=ps->data;
+
+    UTF8String str;
+    uint result=0;
+
+    for(int i=0;i<count;i++)
+    {
+        str=sl[i];
+
+        if(str.Length()<=0)
+            continue;
+
+        if(!ParseLine(p,str))
+            continue;
+
+        (*p)/=100;      //Unreal单位为cm,把单位缩到米
+
+        if(p->x>4096
+         ||p->y>4096)
+            continue;
+
+        (*p)/=4;
+
+        //std::cout<<"X="<<p->x<<",Y="<<p->y<<std::endl;
+
+//        if(p->x<ps->minp.x)ps->minp.x=p->x;
+        if(p->x>ps->maxp.x)ps->maxp.x=p->x;
+//        if(p->y<ps->minp.y)ps->minp.y=p->y;
+        if(p->y>ps->maxp.y)ps->maxp.y=p->y;
+        
+        ++result;
+        ++p;
+    }
+
+    //std::cout<<"minp: "<<ps->minp.x<<","<<ps->minp.y<<std::endl;
+    std::cout<<"maxp: "<<ps->maxp.x<<","<<ps->maxp.y<<std::endl;
+
+    ps->count=result;
+
+    return ps;
+}
+
+struct Chart
+{
+    uint width,height;
+
+    uint min_count;
+    uint max_count;
+    uint gap;
+
+    uint32 *count_data;
+    uint32 *circle_data;
+    uint8 *chart_data;
+
+public:
+
+    Chart(const uint w,const uint h)
+    {
+        width=w;
+        height=h;
+
+        count_data=new uint32[width*height];
+        circle_data=new uint32[width*height];
+        chart_data=new uint8[width*height*4];
+
+        hgl_zero(count_data,width*height);
+        hgl_zero(circle_data,width*height);
+        hgl_zero(chart_data,width*height*4);
+
+        min_count=0;
+        max_count=0;
+        gap=0;
+    }
+
+    ~Chart()
+    {
+        delete[] count_data;
+        delete[] circle_data;
+        delete[] chart_data;
+    }
+
+    void Circle(uint x,uint y,uint radius)
+    {
+        uint r2=radius*radius;
+        uint length;
+
+        for(int col=x-radius;col<=x+radius;col++)
+        {
+            if(col<0||col>=width)continue;
+
+            for(int row=y-radius;row<=y+radius;row++)
+            {
+                if(row<0||row>=height)continue;
+
+                length=(col-x)*(col-x)+(row-y)*(row-y);
+                
+                if(length<=r2)
+                    ++circle_data[col+row*width];
+            }
+        }
+    }
+};
+
+Chart *ToChart32(const PositionStat *ps)
+{
+    uint width=ps->maxp.x-ps->minp.x+1;
+    uint height=ps->maxp.y-ps->minp.y+1;
+
+    std::cout<<"width: "<<width<<",height: "<<height<<std::endl;    
+
+    Chart *chart=new Chart(width,height);
+
+    //统计每个格子数据数量
+    {
+        uint x,y;
+        uint32 *cp32=chart->count_data;
+
+        const Vector2i *p=ps->data;
+
+        for(uint i=0;i<ps->count;i++)
+        {
+            x=p->x-ps->minp.x;
+            y=p->y-ps->minp.y;
+
+            cp32=chart->count_data+(x+y*width);
+
+            if(*cp32<0xFFFFFFFF)
+                ++(*cp32);
+
+            ++p;
+        }
+    }
+
+    //画圆
+    {
+        uint32 *cp32=chart->count_data;
+
+        for(uint y=0;y<height;y++)
+        {
+            for(uint x=0;x<width;x++)
+            {
+                if(*cp32>0)
+                    chart->Circle(x,y,(*cp32)*10);
+
+                ++cp32;
+            }
+        }
+    }
+
+    //统计最小值、最大值
+    {
+        uint32 *cp32=chart->circle_data;
+
+        for(uint i=0;i<width*height;i++)
+        {
+            if(*cp32<chart->min_count)chart->min_count=*cp32;
+            if(*cp32>chart->max_count)chart->max_count=*cp32;
+
+            ++cp32;
+        }
+
+        chart->gap=chart->max_count-chart->min_count;
+
+        std::cout<<"min_count: "<<chart->min_count<<",max_count: "<<chart->max_count<<",gap: "<<chart->gap<<std::endl;
+    }
+
+    //生成权重图
+    {
+        uint32 *cp32=chart->circle_data;
+        uint8 *cp8=chart->chart_data;
+
+        float result;
+        float r,g,b;
+
+        //1.0   1 0 0
+        //0.8   1 1 0
+        //0.6   0 1 0
+        //0.4   0 1 1
+        //0.2   0 0 1
+        //0.0   0 0 0
+
+        for(uint i=0;i<width*height;i++)
+        {
+            result=float((*cp32)-chart->min_count)/float(chart->gap);
+
+            if(result>=0.8f)       //0.8 - 1.0
+            {
+                r=1.0f;
+                g=1.0f-(result-0.8f)*5.0f;
+                b=0.0f;
+            }
+            else
+            {
+                if(result>=0.6f)    //0.6 - 0.8
+                {
+                    r=(result-0.6f)*5.0f;
+                    g=1.0f;
+                    b=0;
+                }
+                else
+                {
+                    if(result>=0.4f)   //0.4 - 0.6
+                    {
+                        r=0.0f;
+                        g=1.0f;
+                        b=1.0f-(result-0.4f)*5.0f;
+                    }
+                    else
+                    if(result>=0.2f)    //0.2 - 0.4
+                    {
+                        r=0.0f;
+                        g=(result-0.2f)*5.0f;
+                        b=1.0f;
+                    }
+                    else                //0.0 - 0.25
+                    {
+                        r=0.0f;
+                        g=0.0f;
+                        b=result*5.0f;
+                    }
+                }
+            }
+
+            cp8[0]=b*255.0f;
+            cp8[1]=g*255.0f;
+            cp8[2]=r*255.0f;
+            cp8[3]=result*255.0f;
+
+            ++cp32;
+            cp8+=4;
+        }
+    }
+
+    return chart;
+}
+
+int os_main(int argc,os_char **argv)
+{
+    std::cout<<"Distribution Chart 2D"<<std::endl<<std::endl;
+
+    if(argc<2)
+    {
+        std::cout<<"example: DistributionChart2D data.csv"<<std::endl<<std::endl;
+        return 0;
+    }
+
+    UTF8StringList sl;
+
+    int line_count=LoadStringListFromTextFile(sl,argv[1]);
+    
+    if(line_count<=1)
+    {
+        std::cout<<"Load file "<<argv[1]<<" failed!"<<std::endl;
+        return(-1);
+    }
+
+    std::cout<<"file total line: "<<line_count<<std::endl;
+
+    AutoDelete<PositionStat> ps=ToVector2i(sl);
+
+    AutoDelete<Chart> chart=ToChart32(ps);
+
+
+    {
+        util::TGAHeader tga_header;
+
+        util::FillTGAHeader(&tga_header,chart->width,chart->height,4);
+
+        io::OpenFileOutputStream fos(OS_TEXT("chart.tga"),io::FileOpenMode::CreateTrunc);
+
+        if(!fos)
+        {
+            std::cerr<<"Create chart.tga failed!"<<std::endl;
+
+            return 1;
+        }
+
+        fos->Write(&tga_header,util::TGAHeaderSize);
+        fos->Write(chart->chart_data,chart->width*chart->height*4);
+        fos->Close();
+    }
+
+    return 0;
+}
\ No newline at end of file
diff --git a/RAM_TestClass.h b/RAM_TestClass.h
index 2fd9a80..6bd1ed7 100644
--- a/RAM_TestClass.h
+++ b/RAM_TestClass.h
@@ -15,6 +15,11 @@ public:
 
     using RuntimeAsset::RuntimeAsset;
 
+    ~Instance()
+    {
+        std::cout<<"~Instance("<<GetID()<<")"<<std::endl;
+    }
+
     void AddPhysicalDevice(PhysicalDeviceID pd_id)
     {
         physical_devices.Add(pd_id);
@@ -33,6 +38,11 @@ public:
 
     using RuntimeAsset::RuntimeAsset;
 
+    ~PhysicalDevice()
+    {
+        std::cout<<"~PhysicalDevice("<<GetID()<<")"<<std::endl;
+    }
+
     bool Init(const AnsiString &name,const InstanceID &iid)
     {
         device_name=name;
diff --git a/RuntimeAssetManager.h b/RuntimeAssetManager.h
index 761258e..7fe6e46 100644
--- a/RuntimeAssetManager.h
+++ b/RuntimeAssetManager.h
@@ -80,9 +80,9 @@ public:
     static V *GetInstance(const K &id)
     {
         return RAM.Get(id);
-    }  
+    }
 
-    void Release()
+    void ReleaseInstance()
     {
         RAM.Release(RuntimeAssetID);
         delete this;