?? delaunayview.cpp
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glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[5].x,m_hct[5].y,m_hct[5].z);
glVertex3d(m_hct[7].x,m_hct[7].y,m_hct[7].z);
normal=GetTriNormal(m_hct[2],m_hct[3],m_hct[8]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[2].x,m_hct[2].y,m_hct[2].z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[8].x,m_hct[8].y,m_hct[8].z);
glEnd();
}
else
{
glBegin(GL_TRIANGLES);//anticlock
normal=GetTriNormal(m_hct[0],m_hct[2],m_hct[1]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[0].x,m_hct[0].y,m_hct[0].z);
glVertex3d(m_hct[2].x,m_hct[2].y,m_hct[2].z);
glVertex3d(m_hct[1].x,m_hct[1].y,m_hct[1].z);
normal=GetTriNormal(m_hct[1],m_hct[2],m_hct[3]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[1].x,m_hct[1].y,m_hct[1].z);
glVertex3d(m_hct[2].x,m_hct[2].y,m_hct[2].z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
normal=GetTriNormal(m_hct[1],m_hct[3],m_hct[4]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[1].x,m_hct[1].y,m_hct[1].z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[4].x,m_hct[4].y,m_hct[4].z);
normal=GetTriNormal(m_hct[4],m_hct[3],m_hct[5]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[4].x,m_hct[4].y,m_hct[4].z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[5].x,m_hct[5].y,m_hct[5].z);
normal=GetTriNormal(m_hct[4],m_hct[5],m_hct[6]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[4].x,m_hct[4].y,m_hct[4].z);
glVertex3d(m_hct[5].x,m_hct[5].y,m_hct[5].z);
glVertex3d(m_hct[6].x,m_hct[6].y,m_hct[6].z);
normal=GetTriNormal(m_hct[7],m_hct[8],m_hct[9]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[7].x,m_hct[7].y,m_hct[7].z);
glVertex3d(m_hct[8].x,m_hct[8].y,m_hct[8].z);
glVertex3d(m_hct[9].x,m_hct[9].y,m_hct[9].z);
normal=GetTriNormal(m_hct[3],m_hct[8],m_hct[7]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[8].x,m_hct[8].y,m_hct[8].z);
glVertex3d(m_hct[7].x,m_hct[7].y,m_hct[7].z);
normal=GetTriNormal(m_hct[3],m_hct[7],m_hct[5]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[7].x,m_hct[7].y,m_hct[7].z);
glVertex3d(m_hct[5].x,m_hct[5].y,m_hct[5].z);
normal=GetTriNormal(m_hct[3],m_hct[2],m_hct[8]);
glNormal3d(normal.x,normal.y,normal.z);
glVertex3d(m_hct[3].x,m_hct[3].y,m_hct[3].z);
glVertex3d(m_hct[2].x,m_hct[2].y,m_hct[2].z);
glVertex3d(m_hct[8].x,m_hct[8].y,m_hct[8].z);
glEnd();
}//if else
}//for*/
}//if
if(m_Dimension==DO_DRAW2 && m_HCT==DO_HCT)
{
for(i=1;i<=3;i++)
{
HCT(tri,i);
glColor4d(0.0,0.0,1.0,0.5);
glBegin(GL_TRIANGLES);//anticlock
glVertex3d(m_hct[0].x,m_hct[0].y,0);
glVertex3d(m_hct[1].x,m_hct[1].y,0);
glVertex3d(m_hct[2].x,m_hct[2].y,0);
glVertex3d(m_hct[1].x,m_hct[1].y,0);
glVertex3d(m_hct[2].x,m_hct[2].y,0);
glVertex3d(m_hct[3].x,m_hct[3].y,0);
glVertex3d(m_hct[3].x,m_hct[3].y,0);
glVertex3d(m_hct[1].x,m_hct[1].y,0);
glVertex3d(m_hct[4].x,m_hct[4].y,0);
glVertex3d(m_hct[3].x,m_hct[3].y,0);
glVertex3d(m_hct[4].x,m_hct[4].y,0);
glVertex3d(m_hct[5].x,m_hct[5].y,0);
glVertex3d(m_hct[4].x,m_hct[4].y,0);
glVertex3d(m_hct[6].x,m_hct[6].y,0);
glVertex3d(m_hct[5].x,m_hct[5].y,0);
glVertex3d(m_hct[7].x,m_hct[7].y,0);
glVertex3d(m_hct[8].x,m_hct[8].y,0);
glVertex3d(m_hct[9].x,m_hct[9].y,0);
glVertex3d(m_hct[8].x,m_hct[8].y,0);
glVertex3d(m_hct[3].x,m_hct[3].y,0);
glVertex3d(m_hct[7].x,m_hct[7].y,0);
glVertex3d(m_hct[3].x,m_hct[3].y,0);
glVertex3d(m_hct[5].x,m_hct[5].y,0);
glVertex3d(m_hct[7].x,m_hct[7].y,0);
glVertex3d(m_hct[2].x,m_hct[2].y,0);
glVertex3d(m_hct[3].x,m_hct[3].y,0);
glVertex3d(m_hct[8].x,m_hct[8].y,0);
glEnd();
}
}
}
int CDelaunayView::DelTriList(double x, double y,int p)
{//record the position of triangles which are to be deleted
//'x' and 'y' are the coordinates of the insert point
//'p' is the mark or th insert point in 'm_point'
CPointPos *point=new CPointPos(x,y);
int j=0,i=0,k=0,max=0;
array a;
// GetInitEdges : ransack each trangle to record it's edges
//when the piont belong it's circle
k=m_pDoc->GetInitEdges(x,y,p);// the returned value 'k/2' is the number of cirecle the point belonged??
if(k==POS_ERROR){
return POS_ERROR;
}
//默認:插入點屬于某個外接圓,且屬于凸包
//judge a point belong to the convexity or not
a=Wher(point);
/*return Value:a.a
POS_IN=1,a point belong a triangle or convexity
POS_ON=2,a point belong a circle or on the edge of convexity
POS_OUT=0,a point out of a circle or convexity
a.b , a.c: record the point's mark in m_con */
max=m_pDoc->m_con.GetSize();
if(0==a.a && k>=2)//插入點屬于某個外接圓,但不屬于凸包
{ //delete an edge "belong to" the inserted polygon,the edge is also
//belong to the border of the convexity
if (max==3){
int t=m_pDoc->m_edge.GetSize();
for(j=0;j<t;j++){
if((m_pDoc->m_edge[j]->m_p1==m_pDoc->m_con[a.b]) &
(m_pDoc->m_edge[j]->m_p2==m_pDoc->m_con[a.c]))
{
m_pDoc->m_edge.RemoveAt(j,1);
m_pDoc->m_con.InsertAt(a.c,p);
break;
}
}
}
else
{
CWordArray con_index;//save the point's mark can be saw on the con
for(i=0;i<max-1;i++)
{
int t=m_pDoc->m_edge.GetSize();
for(j=0;j<t;j++){
if((m_pDoc->m_edge[j]->m_p1==m_pDoc->m_con[i]) &
(m_pDoc->m_edge[j]->m_p2==m_pDoc->m_con[i+1]))
{
bool y=m_pDoc->DelEdgeOrNot(m_pDoc->m_edge[j]->m_p1,m_pDoc->m_edge[j]->m_p2,p);
if(y){
m_pDoc->m_edge.RemoveAt(j,1);
con_index.Add(i);
con_index.Add(i+1);
break;
}
}
}
}//end for i
int t=m_pDoc->m_edge.GetSize();
for(j=0;j<t;j++){
if((m_pDoc->m_edge[j]->m_p1==m_pDoc->m_con[max-1]) &&
(m_pDoc->m_edge[j]->m_p2==m_pDoc->m_con[0]))
{
bool y=m_pDoc->DelEdgeOrNot(m_pDoc->m_edge[j]->m_p1,m_pDoc->m_edge[j]->m_p2,p);
if(y){
m_pDoc->m_edge.RemoveAt(j,1);
con_index.Add(max-1);
con_index.Add(0);
break;
}
}
}
t=con_index.GetSize();
m_pDoc->EditCon(con_index[t-1],con_index[0],p);
}
}
if(k==0){//插入點不屬于任意一個外接圓,顯然也不屬于凸包
CBorder * m_border;
m_border=new CBorder(m_pDoc->m_con[a.b],m_pDoc->m_con[a.c]);
m_pDoc->m_edge.Add(m_border);
m_pDoc->EditCon(a.c,a.b,p);
}
//Delete triangles that have been marked
m_pDoc->DelTriMarked();
//add new triangles
m_pDoc->AddTriangle(p);
max=m_pDoc->m_index.GetSize();
m_pDoc->m_index.RemoveAt(0,max);//RemoveAll : no use ???
m_pDoc->m_edge.RemoveAll();
}
void CDelaunayView::OnDestroy()
{
HGLRC hrc;
hrc=::wglGetCurrentContext();
::wglMakeCurrent(NULL,NULL);
if(m_pDC)
delete m_pDC;
CView::OnDestroy();
}
void CDelaunayView::DrawScene()
{
glClearColor(1.0f,1.0f,1.0f,1.0f);//setup backcolor
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//GL_COLOR_BUFFER_BIT 用當前設置的backcolor 第一次清除 color buffer
// GL_DEPTH_BUFFER_BIT清除 depth buffer,以便進行depth test and 消除隱藏面
glClearDepth(1.0f);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
if(m_bMaterial){
CreateMaterial();
CreateLights();
}
glColorMask(!m_bMaskRed,!m_bMaskGreen,!m_bMaskBlue,GL_TRUE);
glColor3f(m_colorRed,m_colorGreen,m_colorBlue);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslated(m_translate_x,m_translate_y,m_translate_z);
if(m_rotate_angle!=0.0){
glRotated(m_rotate_angle,m_gl_x,m_gl_y,m_gl_z);
}
glScaled(2,2,0);
// glScaled((cx-2*m_ox)/cx,(cy-2*m_oy)/cy,0.0);
if(m_Dimension==DO_DRAW3){
// glPushMatrix();
gluLookAt(10.0,11.0,12.0,0.0,0.0,0.0,0.0,0.0,1.0);//eye.x,eye.y,eye.z
// glPopMatrix();
}
glBegin(GL_LINE_STRIP);
glVertex3d(0.0,0.0,0.0);
glVertex3d(0.0,1.0,0.0);
glVertex3d(1.0,1.0,0.0);
glVertex3d(1.0,0.0,0.0);
glVertex3d(0.0,0.0,0.0);
glEnd();
glPushMatrix();
if(m_Dimension==DO_DRAW2)
DrawPoints();
if(m_Draw_what==DO_WANG && m_Dimension==DO_DRAW3)
m_pDoc->Wang();
else
DrawTris();
glPopMatrix();
glTranslated(0.5,0.5,0.0);
// glPushMatrix();
// auxSolidSphere(0.5);
// glPopMatrix();
glDisable(GL_LIGHTING);
glDisable(GL_LIGHT0);
glDisable(GL_DEPTH_TEST);
// glFinish();
}
void CDelaunayView::InitOpenGl()
{
PIXELFORMATDESCRIPTOR pfd;
int n;
HGLRC hrc;
m_pDC=new CClientDC(this);
ASSERT(m_pDC!=NULL);
if(!bSetupPixelFormat()) return;
n=::GetPixelFormat(m_pDC->GetSafeHdc());
::DescribePixelFormat(m_pDC->GetSafeHdc(),n,sizeof(pfd),&pfd);
hrc=wglCreateContext(m_pDC->GetSafeHdc());
//create a instance of RC: hrc
wglMakeCurrent(m_pDC->GetSafeHdc(),hrc);
//make hrc a current Rendering context of a thread
GetClientRect(&m_oldRect);//get size of ClientRect
}
BOOL CDelaunayView::bSetupPixelFormat()
{
static PIXELFORMATDESCRIPTOR pfd={
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW |
PFD_SUPPORT_OPENGL |
PFD_DOUBLEBUFFER,
PFD_TYPE_RGBA,
24,//24位真彩
0,0,0,0,0,0,
0,
0,
0,
0,0,0,0,
32,//32-bit z-buffer,可從物體中消除隱藏面
0,
0,
PFD_MAIN_PLANE,//選擇主層面
0,
0,0,0
};
int pixelformat;
if((pixelformat=ChoosePixelFormat(m_pDC->GetSafeHdc(),&pfd))==0)
{
MessageBox("ChoosePixelFormat failed");
return FALSE;
}
if(SetPixelFormat(m_pDC->GetSafeHdc(),pixelformat,&pfd)==FALSE)
{
MessageBox("SetPixelFormat failed");
return FALSE;
}
return TRUE;
//CClientDC clientdc(this);
//int pf=ChoosePixelFormat(clientdc.m_hDC,&pfd);
//BOOL rt=SetPixelFormat(clientdc.m_hDC,pf,&pfd);
//hglrc=wglCreateContext(clientdc.m_hDC);
}
void CDelaunayView::DrawPoint(int i)
{
double x,y,z;
x=m_pDoc->m_point[i]->m_x;
y=m_pDoc->m_point[i]->m_y;
z=m_pDoc->m_point[i]->m_z;
glBegin(GL_POINTS);
glVertex3d(m_pDoc->m_point[i]->m_x,m_pDoc->m_point[i]->m_y,0.0);
glEnd();
}
void CDelaunayView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
switch(nChar)
{
case VK_LEFT:
m_translate_x=m_translate_x-0.2;
break;
case VK_RIGHT:
m_translate_x=m_translate_x+0.2;
break;
case VK_UP:
m_translate_y=m_translate_y+0.1;
break;
case VK_DOWN:
m_translate_y=m_translate_y-0.2;
break;
case 88://x
if(m_gl_x==0.0){
m_gl_x=0.1;
}
else{
m_gl_x=0.0;
}
break;
case 89://y
if(m_gl_y==0.0){
m_gl_y=0.1;
}
else{
m_gl_y=0.0;
}
break;
case 90://z
if(m_gl_z==0.0){
m_gl_z=0.1;
}
else{
m_gl_z=0.0;
}
break;
case 100://小鍵盤的left
m_rotate_angle=m_rotate_angle-10.0;
break;
case 102://小鍵盤的right
m_rotate_angle=m_rotate_angle+10.0;
break;
case 104://小鍵盤的up
m_rotate_angle=m_rotate_angle+90.0;
break;
case 98://小鍵盤的down
m_rotate_angle=m_rotate_angle-90.0;
break;
case 65://a
eye.x=eye.x+1.0;
break;
case 83://s
eye.y=eye.y+1.0;
break;
case 68://d
eye.z=eye.z+1.0;
break;
default:
break;
}
CView::OnKeyDown(nChar, nRepCnt, nFlags);
Invalidate();
}
void CDelaunayView::DrawTris()
{
POSITION POS;
CTriangle* pTriangle;
POS = m_pDoc->m_tri.GetHeadPosition();
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