void graph2_1::paintEvent(QPaintEvent *)
{
/***********�����α߿���������**************/
QPainter *painter=new QPainter(this);
painter->setRenderHint(QPainter::Antialiasing,true);
painter->drawRect(10,10,380,230);
QPoint beginPoint(50,200);
QPoint xEndPoint(xEndX,xEndY);
QPoint yEndPoint(yEndX,yEndY);
painter->drawLine(beginPoint,xEndPoint);
painter->drawLine(beginPoint,yEndPoint);
//*****************����������ͷ*********/
int xOffset=13;
brush.setColor(Qt::black);
brush.setStyle(Qt::SolidPattern);
painter->setBrush(brush);
QPoint xarrowRightPoint(xEndX+xOffset,xEndY);
QPoint xarrowTopPoint(xEndX,-xOffset*tan(PI/6)+xEndY);
QPoint xarrowBotPoint(xEndX,xOffset*tan(PI/6)+xEndY);
static const QPoint xarrowPoints[3] = {
xarrowRightPoint,xarrowTopPoint,xarrowBotPoint,
};
painter->drawPolygon(xarrowPoints,3);
QPoint yarrowTopPoint(yEndX,yEndY-xOffset);
QPoint yarrowRightPoint(xOffset*tan(PI/6)+yEndX,yEndY);
QPoint yarrowLeftPoint(-xOffset*tan(PI/6)+yEndX,yEndY);
static const QPoint yarrowPoints[3] = {
yarrowTopPoint,yarrowLeftPoint,yarrowRightPoint,
};
painter->drawPolygon(yarrowPoints,3);
painter->setBrush(Qt::NoBrush);
/************��ע������**********/
painter->drawText(xEndX,xEndY+20,tr("HZ"));
//painter->rotate(270);
painter->drawText(yEndY,yEndX+20,tr("dB"));
//painter->rotate(90);
/*************************/
QVector<qreal> dashes;
qreal space = 3;
dashes << 5 << space << 5 << space;
pen.setDashPattern(dashes);
pen.setWidth(2);
pen.setColor(Qt::blue);
painter->setPen(pen);
QPoint point5(90,200);
QPoint point6(100,155);
QPoint point7(250,110);
QPoint point8(300,80);
painter->drawPath(drawBezierCurve(point5,point6));
painter->drawPath(drawBezierCurve(point6,point7));
painter->drawPath(drawBezierCurve(point7,point8));
}
void MyPrimitive::GenerateTube(float a_fOuterRadius, float a_fInnerRadius, float a_fHeight, int a_nSubdivisions, vector3 a_v3Color)
{
if (a_nSubdivisions < 3)
a_nSubdivisions = 3;
if (a_nSubdivisions > 360)
a_nSubdivisions = 360;
Release();
Init();
for (int i = 0; i < a_nSubdivisions; i++)
{
float ang = (2 * PI) / a_nSubdivisions;
vector3 point0(a_fOuterRadius*cos((i + 1)*ang), a_fHeight, a_fOuterRadius*sin((i + 1)*ang)); //1
vector3 point1(a_fOuterRadius*cos(i*ang), 0, a_fOuterRadius*sin(i*ang)); //2
vector3 point2(a_fOuterRadius*cos(i*ang), a_fHeight, a_fOuterRadius*sin(i*ang)); //0
vector3 point3(a_fOuterRadius*cos((i + 1)*ang), 0, a_fOuterRadius*sin((i + 1)*ang)); //3
vector3 point4(a_fInnerRadius*cos((i + 1)*ang), a_fHeight, a_fInnerRadius*sin((i + 1)*ang)); //1
vector3 point5(a_fInnerRadius*cos(i*ang), 0, a_fInnerRadius*sin(i*ang)); //2
vector3 point6(a_fInnerRadius*cos(i*ang), a_fHeight, a_fInnerRadius*sin(i*ang)); //0
vector3 point7(a_fInnerRadius*cos((i + 1)*ang), 0, a_fInnerRadius*sin((i + 1)*ang)); //3
AddQuad(point4, point0, point6, point2); //Top
AddQuad(point0, point3, point2, point1); //Outer
AddQuad(point7, point5, point3, point1); //Bottom
AddQuad(point5, point7, point6,point4 ); // Inner
}
//Your code ends here
CompileObject(a_v3Color);
}
void MyPrimitive::GenerateCube(float a_mSize, vector3 a_vColor)
{
//If the size is less than this make it this large
if (a_mSize < 0.01f)
a_mSize = 0.01f;
//Clean up Memory
Release();
Init();
float fValue = 0.5f * a_mSize;
//3--2
//| |
//0--1
vector3 point0(-fValue, -fValue, fValue); //0
vector3 point1(fValue, -fValue, fValue); //1
vector3 point2(fValue, fValue, fValue); //2
vector3 point3(-fValue, fValue, fValue); //3
//7--6
//| |
//4--5
vector3 point4(-fValue, -fValue, -fValue); //4
vector3 point5(fValue, -fValue, -fValue); //5
vector3 point6(fValue, fValue, -fValue); //6
vector3 point7(-fValue, fValue, -fValue); //7
//F
AddQuad(point0, point1, point3, point2);
//B
AddQuad(point5, point4, point6, point7);
//L
AddQuad(point4, point0, point7, point3);
//R
AddQuad(point1, point5, point2, point6);
//U
AddQuad(point3, point2, point7, point6);
//D
AddQuad(point4, point5, point0, point1);
//Compile the object in this color and assign it this name
CompileObject(a_vColor);
}
void MyPrimitive::GenerateCube(float a_fSize, vector3 a_v3Color)
{
if (a_fSize < 0.01f)
a_fSize = 0.01f;
Release();
Init();
float fValue = 0.5f * a_fSize;
//3--2
//| |
//0--1
vector3 point0(-fValue, -fValue, fValue); //0
vector3 point1(fValue, -fValue, fValue); //1
vector3 point2(fValue, fValue, fValue); //2
vector3 point3(-fValue, fValue, fValue); //3
vector3 point4(-fValue, -fValue, -fValue); //4
vector3 point5(fValue, -fValue, -fValue); //5
vector3 point6(fValue, fValue, -fValue); //6
vector3 point7(-fValue, fValue, -fValue); //7
//F
AddQuad(point0, point1, point3, point2);
//B
AddQuad(point5, point4, point6, point7);
//L
AddQuad(point4, point0, point7, point3);
//R
AddQuad(point1, point5, point2, point6);
//U
AddQuad(point3, point2, point7, point6);
//D
AddQuad(point4, point5, point0, point1);
CompileObject(a_v3Color);
}
