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?? surfer.cpp

?? 克里金、反距離插值算法_柵格圖等值線填充等
?? CPP
字號: 
// Surfer.cpp: implementation of the CSurfer class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Surfer.h"
using namespace std;

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

#define		BOUNDARY_LIST	1
#define		AXIS_LIST		2
#define		DATA_LIST		3
#define		WALL_LIST		4
#define		IMAGE_LIST		5

GLuint		g_nImageID;

static COLORREF Colors[11] = { RGB(127, 127, 127), RGB(0, 0, 127), RGB(0, 0, 255), RGB(0, 127, 127), RGB(0, 255, 0), 
						RGB(127, 127, 0), RGB(255, 255, 0), RGB(0, 255, 255), RGB(255, 0, 255), RGB(255, 127, 0), 
						RGB(255, 0, 0) };

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CSurfer::CSurfer()
{
	m_crBoundary = RGB(255, 0, 255);
	m_bBoundary = true;
	m_bWall = true;
	m_pImage = NULL;
	m_bSupportImage = false;
	m_bShowImage = false;
	m_bShowLegend = true;
}

CSurfer::~CSurfer()
{

}

void CSurfer::Init(HWND hWnd) throw()
{
	C3DGrapher::Init(hWnd);

	BuildBoundaryList();
	BuildAxisList();
	BuildDataList();
	BuildWallList();

	SetBkGndColor(RGB(0, 0, 72));
}

void CSurfer::Destroy() throw()
{
	BEGIN_GL
	::glDeleteLists(BOUNDARY_LIST, WALL_LIST);
	if(m_bSupportImage)
		::glDeleteLists(IMAGE_LIST, 1);
	END_GL

	C3DGrapher::Destroy();
}

void CSurfer::Render() throw()
{
	BEGIN_GL
	// Clear First
	::glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	// Start rendering
	::glPushMatrix();
	::glTranslated(0, 0, -m_dZrange*2);
	::glTranslated(0, 0, m_dZtran);
	::glRotatef(m_dXrot, 1.0, 0.0, 0.0);
	::glRotatef(m_dYrot, 0.0, 1.0, 0.0);
	::glRotatef(m_dZrot, 0.0, 0.0, 1.0);
	if(m_bBoundary)
		::glCallList(BOUNDARY_LIST);
	::glCallList(AXIS_LIST);
	::glCallList(DATA_LIST);
	if(m_bWall)
		::glCallList(WALL_LIST);
	if(m_bSupportImage && m_bShowImage)
		::glCallList(IMAGE_LIST);
	if(m_bShowLegend)
		ShowLegend();
 	::glPopMatrix();
	// Flush & Swap
	::glFlush();
	::SwapBuffers(m_hDC);
	END_GL
}

void CSurfer::BuildBoundaryList() const throw()
{
	BEGIN_GL
	double x = m_dXrange/2;
	double y = m_dYrange/2;
	double z = m_dZrange/2;

	::glNewList(BOUNDARY_LIST, GL_COMPILE);
	::glColor3ub(GetRValue(m_crBoundary), GetGValue(m_crBoundary), GetBValue(m_crBoundary));

	::glBegin(GL_LINE_LOOP);
	
	::glVertex3d(-x,-y,-z);
	::glVertex3d(x-1,-y,-z);
	::glVertex3d(x-1,y-1,-z);
	::glVertex3d(-x,y-1,-z);
	::glEnd();

	::glBegin(GL_LINE_LOOP);
	::glVertex3d(-x,-y,z-1);
	::glVertex3d(x-1,-y,z-1);
	::glVertex3d(x-1,y-1,z-1);
	::glVertex3d(-x,y-1,z-1);
	::glEnd();

	::glBegin(GL_LINES);
	::glVertex3d(-x,-y,-z);
	::glVertex3d(-x,-y,z-1);

	::glVertex3d(x-1,-y,-z);
	::glVertex3d(x-1,-y,z-1);

	::glVertex3d(x-1,y-1,-z);
	::glVertex3d(x-1,y-1,z-1);

	::glVertex3d(-x,y-1,-z);
	::glVertex3d(-x,y-1,z-1);

	::glEnd();
	::glEndList();
	END_GL
}

void CSurfer::BuildAxisList() const throw()
{
	double x = m_dXrange/2;
	double y = m_dYrange/2;
	double z = m_dZrange/2;

	BEGIN_GL

	::glNewList(AXIS_LIST, GL_COMPILE);
	// x axis(x-coord)
	::glBegin(GL_LINES);
	::glColor3ub(255, 255, 255);
	::glVertex3d(-x, -y, -z);
	::glVertex3d(x, -y, -z);
	::glEnd();
	PrintString(m_strXtitle, x+10, -y-10, -z);

	// y axis(thickness)
	::glBegin(GL_LINES);
	::glColor3ub(255, 255, 255);
	::glVertex3d(-x, -y, -z);
	::glVertex3d(-x, y, -z);
	::glEnd();
	PrintString(m_strYtitle, -x, y+10, -z);

	// z axis(y-coord)
	::glBegin(GL_LINES);
	::glColor3ub(255, 255, 255);
	::glVertex3d(-x, -y, -z);
	::glVertex3d(-x, -y, z);
	::glEnd();
	PrintString(m_strZtitle, -x-20, -y-10, z+10);

	::glEndList();
	END_GL
}

void CSurfer::BuildDataList() const throw()
{
	BEGIN_GL
	C3DData* pdata;
	double xPos, yPos, thickness;
	double x, y, z;
	
	// We'll have only one C3DData*
	pdata = m_listData.front();

	::glNewList(DATA_LIST, GL_COMPILE);
	double i;
	for(double j=0; j<m_dZrange-1; j+=1) {
		::glBegin(GL_TRIANGLE_STRIP);
		i = 0;
		xPos = i;
		yPos = j;
		thickness = pdata->GetZdata((int)(i + m_dXrange*j));
		x = -m_dXrange/2+xPos;
		y = -m_dYrange/2+thickness;
		z = -m_dZrange/2+yPos;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
		for(i=0; i<m_dXrange; i+=1) {
			xPos = i;
			yPos = j+1;
			thickness = pdata->GetZdata((int)(i + m_dXrange*(j+1)));
			x = -m_dXrange/2+xPos;
			y = -m_dYrange/2+thickness;
			z = -m_dZrange/2+yPos;
			SetDataColor(thickness);
			::glVertex3f(x, y, z);

			xPos = i+1;
			yPos = j;
			thickness = pdata->GetZdata((int)(i + 1 + m_dXrange*j));
			x = -m_dXrange/2+xPos;
			y = -m_dYrange/2+thickness;
			z = -m_dZrange/2+yPos;
			SetDataColor(thickness);
			::glVertex3f(x, y, z);
		}
		::glEnd();
	}
	::glEndList();
	END_GL
}

void CSurfer::BuildWallList() const throw()
{
	BEGIN_GL
	C3DData* pdata;
	double xPos, yPos, thickness;
	double x, y, z;
	pdata = m_listData.front();

	::glNewList(WALL_LIST, GL_COMPILE);
	// x-t plane where y=0
	::glFrontFace(GL_CCW);
	::glBegin(GL_QUAD_STRIP);
	xPos = 0;
	yPos = 0;
	thickness = 0;
	x = -m_dXrange/2+xPos;
	y = -m_dYrange/2+thickness;
	z = -m_dZrange/2+yPos;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	SetDataColor(thickness);
	thickness = pdata->GetZdata(0);
	y = -m_dYrange/2+thickness;
	::glVertex3f(x, y, z);
	for(int i=1; i<m_dXrange; i++) {
		xPos = (double)i;
		thickness = 0;
		x = -m_dXrange/2+xPos;
		y = -m_dYrange/2+thickness;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
		thickness = pdata->GetZdata(i);
		y = -m_dYrange/2+thickness;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
	}
	::glEnd();
	// x-t plane where y=height
	::glFrontFace(GL_CW);
	::glBegin(GL_QUAD_STRIP);
	xPos = 0;
	yPos = m_dZrange -1;
	thickness = 0;
	x = -m_dXrange/2+xPos;
	y = -m_dYrange/2+thickness;
	z = -m_dZrange/2+yPos;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	thickness = pdata->GetZdata((int)(m_dXrange*(m_dZrange-1)));
	y = -m_dYrange/2+thickness;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	for(i=1; i<m_dXrange; i++) {
		xPos = (double)i;
		thickness = 0;
		x = -m_dXrange/2+xPos;
		y = -m_dYrange/2+thickness;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
		thickness = pdata->GetZdata((int)(m_dXrange*(m_dZrange-1) + i));
		y = -m_dYrange/2+thickness;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
	}
	::glEnd();
	// y-t plane where x=0
	::glFrontFace(GL_CW);
	::glBegin(GL_QUAD_STRIP);
	xPos = 0;
	yPos = 0;
	thickness = 0;
	x = -m_dXrange/2+xPos;
	y = -m_dYrange/2+thickness;
	z = -m_dZrange/2+yPos;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	thickness = pdata->GetZdata(0);
	y = -m_dYrange/2+thickness;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	for(i=1; i<m_dZrange; i++) {
		yPos = (double)i;
		thickness = 0;
		y = -m_dYrange/2+thickness;
		z = -m_dZrange/2+yPos;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
		thickness = pdata->GetZdata((int)(i*m_dXrange));
		y = -m_dYrange/2+thickness;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
	}
	::glEnd();
	// y-t plane where x=width
	::glFrontFace(GL_CCW);
	::glBegin(GL_QUAD_STRIP);
	xPos = m_dXrange-1;
	yPos = 0;
	thickness = 0;
	x = -m_dXrange/2+xPos;
	y = -m_dYrange/2+thickness;
	z = -m_dZrange/2+yPos;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	thickness = pdata->GetZdata(0);
	y = -m_dYrange/2+thickness;
	SetDataColor(thickness);
	::glVertex3f(x, y, z);
	for(i=1; i<m_dZrange; i++) {
		yPos = (double)i;
		thickness = 0;
		y = -m_dYrange/2+thickness;
		z = -m_dZrange/2+yPos;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
		thickness = pdata->GetZdata((int)(i*m_dXrange + m_dXrange - 1));
		y = -m_dYrange/2+thickness;
		SetDataColor(thickness);
		::glVertex3f(x, y, z);
	}
	::glEnd();
	::glEndList();
	END_GL
}

void CSurfer::ShowLegend() const throw() 
{
	double x = m_dXrange/2;
	double y = m_dYrange/2;
	double z = m_dZrange/2;

	CRect rt;
	::GetClientRect(m_hWnd, &rt);

	BEGIN_GL

	::glPopMatrix();
	::glPushMatrix();
	::glTranslated(0.0, 0.0, -4);

	::glColor3f(1.0, 1.0, 1.0);
	::gluOrtho2D(0.0f, rt.right, 0, rt.bottom);
	::glBegin(GL_LINE_LOOP);
	::glVertex2f(rt.right+rt.right/4.0f, y+rt.bottom+60);
	::glVertex2f(rt.right+rt.right/4.0f, y+rt.bottom-300);
	::glVertex2f(rt.right+rt.right/2.0f, y+rt.bottom-300);
	::glVertex2f(rt.right+rt.right/2.0f, y+rt.bottom+60);
	::glEnd();

	int size = sizeof(Colors)/sizeof(Colors[0]);
	int yoffset = 0;
	string str;
	for(int i=0; i<size; i++) {
		::glColor3ub(GetRValue(Colors[i]), GetGValue(Colors[i]), GetBValue(Colors[i]));
		::glBegin(GL_QUADS);
		::glVertex2f(rt.right+20.0f+rt.right/4, y+rt.bottom-280+yoffset);
		::glVertex2f(rt.right+20.0f+rt.right/3, y+rt.bottom-280+yoffset);
		::glVertex2f(rt.right+20.0f+rt.right/3, y+rt.bottom-260+yoffset);
		::glVertex2f(rt.right+20.0f+rt.right/4, y+rt.bottom-260+yoffset);
		::glEnd();
		char buf[128];
		::sprintf(buf, _T("%d%%"), i*10);
		str = buf;
		PrintString(str, rt.right+30.0f+rt.right/3, y+rt.bottom-280+yoffset, 0);
		yoffset += 30;
	}

	END_GL
}

void CSurfer::SetDataColor(double thickness) const throw()
{
	if(m_dYrange == m_dThicknessMin) {
		BEGIN_GL
		::glColor3ub(255, 0, 0);
		END_GL
	}
	double ratio = (thickness-m_dThicknessMin) / (m_dYrange-m_dThicknessMin);
	int size = sizeof(Colors)/sizeof(Colors[0]);
	int nRatio = ratio * (size - 1);

	COLORREF col = Colors[nRatio];
	BEGIN_GL
	::glColor3ub(GetRValue(col), GetGValue(col), GetBValue(col));
	END_GL
}

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