C++ QPointF函数代码示例

void AudioNoiseWidget::paintEvent(QPaintEvent *) {
	QPainter paint(this);
	QPalette pal;

	paint.fillRect(rect(), pal.color(QPalette::Background));

	AudioInputPtr ai = g.ai;
	if (ai.get() == NULL || ! ai->sppPreprocess)
		return;

	QPolygonF poly;

	ai->qmSpeex.lock();

	spx_int32_t ps_size = 0;
	speex_preprocess_ctl(ai->sppPreprocess, SPEEX_PREPROCESS_GET_PSD_SIZE, &ps_size);

	STACKVAR(spx_int32_t, noise, ps_size);
	STACKVAR(spx_int32_t, ps, ps_size);

	speex_preprocess_ctl(ai->sppPreprocess, SPEEX_PREPROCESS_GET_PSD, ps);
	speex_preprocess_ctl(ai->sppPreprocess, SPEEX_PREPROCESS_GET_NOISE_PSD, noise);

	ai->qmSpeex.unlock();

	qreal sx, sy;

	sx = (static_cast<float>(width()) - 1.0f) / static_cast<float>(ps_size);
	sy = static_cast<float>(height()) - 1.0f;

	poly << QPointF(0.0f, height() - 1);
	float fftmul = 1.0 / (32768.0);
	for (int i=0; i < ps_size; i++) {
		qreal xp, yp;
		xp = i * sx;
		yp = sqrtf(sqrtf(static_cast<float>(noise[i]))) - 1.0f;
		yp = yp * fftmul;
		yp = qMin<qreal>(yp * 3000.0f, 1.0f);
		yp = (1 - yp) * sy;
		poly << QPointF(xp, yp);
	}

	poly << QPointF(width() - 1, height() - 1);
	poly << QPointF(0.0f, height() - 1);

	paint.setPen(Qt::blue);
	paint.setBrush(Qt::blue);
	paint.drawPolygon(poly);

	poly.clear();

	for (int i=0;i < ps_size; i++) {
		qreal xp, yp;
		xp = i * sx;
		yp = sqrtf(sqrtf(static_cast<float>(ps[i]))) - 1.0f;
		yp = yp * fftmul;
		yp = qMin(yp * 3000.0, 1.0);
		yp = (1 - yp) * sy;
		poly << QPointF(xp, yp);
	}

	paint.setPen(Qt::red);
	paint.drawPolyline(poly);
}

void QgsDecorationGrid::drawCoordinateAnnotation( QPainter* p, QPointF pos, const QString& annotationString )
{
  Border frameBorder = borderForLineCoord( pos, p );
  double textWidth = textWidthMillimeters( mGridAnnotationFont, annotationString );
  //relevant for annotations is the height of digits
  double textHeight = fontHeightCharacterMM( mGridAnnotationFont, QChar( '0' ) );
  double xpos = pos.x();
  double ypos = pos.y();
  int rotation = 0;

  if ( frameBorder == Left )
  {

    if ( mGridAnnotationPosition == InsideMapFrame )
    {
      if ( mGridAnnotationDirection == Vertical || mGridAnnotationDirection == BoundaryDirection )
      {
        xpos += textHeight + mAnnotationFrameDistance;
        ypos += textWidth / 2.0;
        rotation = 270;
      }
      else
      {
        xpos += mAnnotationFrameDistance;
        ypos += textHeight / 2.0;
      }
    }
    else //Outside map frame
    {
      if ( mGridAnnotationDirection == Vertical || mGridAnnotationDirection == BoundaryDirection )
      {
        xpos -= mAnnotationFrameDistance;
        ypos += textWidth / 2.0;
        rotation = 270;
      }
      else
      {
        xpos -= textWidth + mAnnotationFrameDistance;
        ypos += textHeight / 2.0;
      }
    }

  }
  else if ( frameBorder == Right )
  {
    if ( mGridAnnotationPosition == InsideMapFrame )
    {
      if ( mGridAnnotationDirection == Vertical || mGridAnnotationDirection == BoundaryDirection )
      {
        xpos -= mAnnotationFrameDistance;
        ypos += textWidth / 2.0;
        rotation = 270;
      }
      else //Horizontal
      {
        xpos -= textWidth + mAnnotationFrameDistance;
        ypos += textHeight / 2.0;
      }
    }
    else //OutsideMapFrame
    {
      if ( mGridAnnotationDirection == Vertical || mGridAnnotationDirection == BoundaryDirection )
      {
        xpos += textHeight + mAnnotationFrameDistance;
        ypos += textWidth / 2.0;
        rotation = 270;
      }
      else //Horizontal
      {
        xpos += mAnnotationFrameDistance;
        ypos += textHeight / 2.0;
      }
    }
  }
  else if ( frameBorder == Bottom )
  {
    if ( mGridAnnotationPosition == InsideMapFrame )
    {
      if ( mGridAnnotationDirection == Horizontal || mGridAnnotationDirection == BoundaryDirection )
      {
        ypos -= mAnnotationFrameDistance;
        xpos -= textWidth / 2.0;
      }
      else //Vertical
      {
        xpos += textHeight / 2.0;
        ypos -= mAnnotationFrameDistance;
        rotation = 270;
      }
    }
    else //OutsideMapFrame
    {
      if ( mGridAnnotationDirection == Horizontal || mGridAnnotationDirection == BoundaryDirection )
      {
        ypos += mAnnotationFrameDistance + textHeight;
        xpos -= textWidth / 2.0;
      }
      else //Vertical
      {
        xpos += textHeight / 2.0;
//.........这里部分代码省略.........

int main()
{
    {
        // STREAM
//! [0]
        QPolygon polygon;
        polygon << QPoint(10, 20) << QPoint(20, 30);
//! [0]
    }

    {
        // STREAMF
//! [1]
        QPolygonF polygon;
        polygon << QPointF(10.4, 20.5) << QPointF(20.2, 30.2);
//! [1]
    }

    {
        // SETPOINTS
//! [2]
        static const int points[] = { 10, 20, 30, 40 };
        QPolygon polygon;
        polygon.setPoints(2, points);
//! [2]
    }

    {
        // SETPOINTS2
//! [3]
        QPolygon polygon;
        polygon.setPoints(2, 10, 20, 30, 40);
//! [3]
    }

    {
        // PUTPOINTS
//! [4]
        QPolygon polygon(1);
        polygon[0] = QPoint(4, 5);
        polygon.putPoints(1, 2, 6,7, 8,9);
//! [4]
    }

    {
        // PUTPOINTS2
//! [5]
        QPolygon polygon(3);
        polygon.putPoints(0, 3, 4,5, 0,0, 8,9);
        polygon.putPoints(1, 1, 6,7);
//! [5]
    }

    {
        // PUTPOINTS3
//! [6]
        QPolygon polygon1;
        polygon1.putPoints(0, 3, 1,2, 0,0, 5,6);
        // polygon1 is now the three-point polygon(1,2, 0,0, 5,6);

        QPolygon polygon2;
        polygon2.putPoints(0, 3, 4,4, 5,5, 6,6);
        // polygon2 is now (4,4, 5,5, 6,6);

        polygon1.putPoints(2, 3, polygon2);
        // polygon1 is now the five-point polygon(1,2, 0,0, 4,4, 5,5, 6,6);
//! [6]
    }
    return 0;
}

static void fillRectVec(QVector<QPointF> &v)
{
    int numRects = v.size() / 5;

    int first = 0;
    v[first++] = QPointF(0, 0);
    v[first++] = QPointF(10, 0);
    v[first++] = QPointF(10, 10);
    v[first++] = QPointF(0, 10);
    v[first++] = QPointF(0, 0);

    v[first++] = QPointF(0, 0);
    v[first++] = QPointF(2, 2);
    v[first++] = QPointF(4, 0);
    v[first++] = QPointF(2, -2);
    v[first++] = QPointF(0, 0);

    v[first++] = QPointF(0, 0);
    v[first++] = QPointF(4, 4);
    v[first++] = QPointF(6, 2);
    v[first++] = QPointF(2, -2);
    v[first++] = QPointF(0, 0);

    for (int i = first / 5; i < numRects; ++i) {
        QPointF a = creatPoint();
        QPointF b = creatPoint();

        QPointF delta = a - b;
        QPointF perp(delta.y(), -delta.x());

        perp *= ((int)(20.0 * rand() / (RAND_MAX + 1.0))) / 20.0;

        int j = 5 * i;
        v[j++] = a + perp;
        v[j++] = a - perp;
        v[j++] = b - perp;
        v[j++] = b + perp;
        v[j++] = a + perp;
    }
}

QRectF QPageLayoutPrivate::fullRect(QPageLayout::Unit units) const
{
    return units == m_units ? fullRect() : QRectF(QPointF(0, 0), fullSizeUnits(units));
}

//.........这里部分代码省略.........
             != excludeSquares->end() )
            continue;

        cheng4::Piece pc = board.piece(sq);
        cheng4::Piece pt = cheng4::PiecePack::type(pc);
        if ( pt == cheng4::ptNone )
            continue;
        cheng4::Color c = cheng4::PiecePack::color(pc);
		if ( !pieceSet || !pieceSet->pieces[c][pt-1] )
			continue;
        pieceSet->pieces[c][pt-1]->renderer()->render(&p, sub);
	}

	// FIXME: better!!!
	for (cheng4::Square s = 0; s < 64; s++)
	{
		cheng4::File f = cheng4::SquarePack::file(s);
		cheng4::Rank r = cheng4::SquarePack::rank(s);
		QRectF sub(rc.left() + sw*f + bordersz, rc.top() + sh*r + bordersz, sw, sh);
		cheng4::Square sq = flip ? cheng4::SquarePack::flipH(cheng4::SquarePack::flipV(s)) : s;
		// now highlight!!!
		if ( highlight == cheng4::mcNone || highlight == cheng4::mcNull )
			continue;
		cheng4::Square from, to;
		from = cheng4::MovePack::from(highlight);
		to = cheng4::MovePack::to(highlight);
		if ( sq != from && sq != to )
			continue;

		QPen hpen( highlightColor );
		hpen.setWidth(2);
		p.setPen( hpen );
		p.setBrush( Qt::transparent );
		p.drawRect( sub );
		p.setPen( Qt::transparent );
	}

	if ( !border )
		return;

    // draw board letters
	p.setPen( letterColor );
    QTextOption opt;
    opt.setAlignment(Qt::AlignCenter);
    QFont font;
    font.setBold(0);
    font.setPixelSize(12);
    p.setFont(font);
    for (uint i=0; i<8; i++)
    {
        // rows:
		QPointF pt( 0, bordersz + sh*i );
        QRectF rct;
        rct.setTopLeft( pt );
		rct.setSize( QSizeF( bordersz, sh ) );
        QString text;
        int irow = 7-(int)i;
        if ( flip )
            irow = 8-1-irow;
        text.sprintf("%d", irow+1);
        p.drawText(rct, text, opt);
		pt.setX( bordersz+sw*8 );
        rct.setTopLeft( pt );
		rct.setSize( QSizeF( bordersz, sh ) );
        p.drawText(rct, text, opt);
        // cols:
        int icol = (int)i;
        if ( flip )
            icol = 8-1-i;
        text.sprintf("%c", 'a' + icol);
		pt.setX( bordersz + sw*i );
        pt.setY( 0 );
        rct.setTopLeft(pt);
		rct.setSize( QSizeF( sw, bordersz ) );
        p.drawText(rct, text, opt);
		pt.setY( bordersz+sh*8 );
        rct.setTopLeft( pt );
		rct.setSize( QSizeF( sw, bordersz ) );
        p.drawText(rct, text, opt);
    }
    // draw stm
    QRectF upr;
	upr.setTopLeft( QPointF( bordersz + sw*8 + bordersz/8, bordersz/8 ) );
	upr.setSize( QSizeF( bordersz - 2*bordersz/8, bordersz - 2*bordersz/8 ) );

    bool upper = board.turn() == (flip ? cheng4::ctWhite : cheng4::ctBlack);

    p.setPen( wb[ cheng4::flip(board.turn()) ] );
    p.setBrush( wb[ board.turn() ] );

    if ( upper )
        p.drawRect( upr );

    QRectF lwr;
	lwr.setTopLeft( QPointF( bordersz + sw*8 + bordersz/8, bordersz + sh*8 + bordersz/8 ) );
	lwr.setSize( QSizeF( bordersz - 2*bordersz/8, bordersz - 2*bordersz/8 ) );

    if ( !upper )
        p.drawRect( lwr );
}

/**
 * Evento chamado quando o mouse é clicado
 */
void GraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
{
  if(!running)
  {
    QPointF pos = mouseEvent->scenePos(); //posição do mouse na hora do clique
    //qDebug() << "x: " << pos.x() << " y: " << pos.y();
    bool colidiu = false;
    QList<QGraphicsItem *> cidades = this->items(); //lista de cidades na tela

    if(mouseEvent->button() == Qt::LeftButton) //adicionar uma cidade
    {
        QRectF bboxCidade(pos.x(),pos.y(), cidadeWidth, cidadeHeigth); //bouding box da elipse da cidade

        //gradiente de cores de cada cidade
        QRadialGradient gradient(10, 10, 10, 10, 10);
        gradient.setColorAt(0, QColor::fromRgbF(0.5, 0.8, 0.7, 1));
        gradient.setColorAt(1, QColor::fromRgbF(0, 0, 0, 0));
        gradient.setSpread(QGradient::ReflectSpread);
        QBrush brush(gradient);

        QGraphicsEllipseItem *cidade = new QGraphicsEllipseItem(bboxCidade);
        cidade->setPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
        cidade->setBrush(brush);
        cidade->setZValue(1.0);

        for(int i = 0; i < cidades.size(); i++) //percorrendo a lista de cidades
        {
            if(cidades.at(i)->collidesWithItem(cidade) && cidades.at(i)->data(1).toBool())
            {
                colidiu = true;
                break;
            }
        }

        if(!colidiu) //se não houve colisão
        {
           cidade->setData(0, Cidade::getLastId() + 1);
           cidade->setData(1, 1);
           cidade->setData(4, pos);
           this->addItem(cidade);

           if(lastPos.x() != -10.0 && lastPos.y() != -10.0)
           {
               QPoint cids(Cidade::getLastId(),Cidade::getLastId() + 1);
               //this->drawEdge(lastPos, pos, cids);
           }

           lastPos = pos;
           emit cidadeCriada(pos); //sinal emitido quando uma cidade é criada
        }
    }
    else if(mouseEvent->button() == Qt::RightButton) //remover uma cidade
    {
        for(int i = 0; i < cidades.size(); i++) //percorrendo a lista de cidades
        {
            if(cidades.at(i)->contains(pos) && cidades.at(i)->data(1).toInt() == 1) //o mouse foi clicado em cima de uma cidade
            {
                int chave = cidades.at(i)->data(0).toInt();
                this->removeItem(cidades.at(i));
                //this->removeEdge(chave);

                if(items().size() == 0) lastPos = QPointF(-10,-10);
                emit cidadeRemovida(chave); //sinal emitido quando uma cidade removida
            }
        }
    }
  }
}

void QgsMarkerSymbolLayerV2::drawPreviewIcon( QgsSymbolV2RenderContext& context, QSize size )
{
  startRender( context );
  renderPoint( QPointF( size.width() / 2, size.height() / 2 ), context );
  stopRender( context );
}

QPointF QgsMarkerSymbolLayerV2::_rotatedOffset( const QPointF& offset, double angle )
{
  angle = DEG2RAD( angle );
  double c = cos( angle ), s = sin( angle );
  return QPointF( offset.x() * c - offset.y() * s, offset.x() * s + offset.y() * c );
}

void FGWCondition::paintEvent(QPaintEvent *)
{
    QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing);

    QFontMetrics fm = painter.fontMetrics();
    if (fm.ascent() + fm.descent() != m_fontHeight)
    {
        m_fontHeight = fm.ascent() + fm.descent();
        updateTransforms();
    }

    // Y-Axis label
    QTransform transform;
    transform.rotate(270);
    transform.translate(-(height() + fm.width(m_yAxisLabel)) / 2, fm.ascent());
    painter.setTransform(transform);
    painter.drawText(QPointF(0, 0), m_yAxisLabel);

    // X-Axis label
    transform.reset();
    painter.setTransform(transform);
    painter.drawText(QPointF((width() - fm.width(m_xAxisLabel)) / 2, height() - fm.descent()), m_xAxisLabel);

    // The actual graph
    if (m_forceCondition)
    {
        QPointF startPos(-1.0, 0.0);
        QPointF startViewPos = m_model2View.map(startPos);

        QPointF endPos(1.0, 0.0);
        QPointF endViewPos = m_model2View.map(endPos);

        double negativeSaturation = m_forceCondition->negativeSaturation();
        if (m_forceCondition->negativeCoefficient() < 0.0)
        {
            negativeSaturation = -negativeSaturation;
        }

        double positiveSaturation = m_forceCondition->positiveSaturation();
        if (m_forceCondition->positiveCoefficient() < 0.0)
        {
            positiveSaturation = -positiveSaturation;
        }

        double negativeDeadBandValue = CLIP11(m_forceCondition->offset() - m_forceCondition->deadBand());
        double positiveDeadBandValue = CLIP11(m_forceCondition->offset() + m_forceCondition->deadBand());

        double negCoeff = m_forceCondition->negativeCoefficient();
        double negCoeffValue = 1000.0;
        if (0.001 < fabs(negCoeff))
        {
            negCoeffValue = (1.0 / fabs(negCoeff)) - 1.0;
        }
        negCoeffValue *= m_forceCondition->negativeSaturation();
        double negativeSaturationValue = negativeDeadBandValue - negCoeffValue;
        if (negativeSaturationValue < -1.0)
        {
            double negCoeffVisible = negativeDeadBandValue + 1.0;
            double ratio = negCoeffVisible / negCoeffValue;
            negativeSaturation *= ratio;
            negativeSaturationValue = -1.0;
        }

        double posCoeff = m_forceCondition->positiveCoefficient();
        double posCoeffValue = 1000.0;
        if (0.001 < fabs(posCoeff))
        {
            posCoeffValue = (1.0 / fabs(posCoeff)) - 1.0;
        }
        posCoeffValue *= m_forceCondition->positiveSaturation();
        double positiveSaturationValue = positiveDeadBandValue + posCoeffValue;
        if (1.0 < positiveSaturationValue)
        {
            double posCoeffVisible = 1.0 - positiveDeadBandValue;
            double ratio = posCoeffVisible / posCoeffValue;
            positiveSaturation *= ratio;
            positiveSaturationValue = 1.0;
        }

        QPointF offsetPos(m_forceCondition->offset(), 0.0);
        QPointF offsetViewPos = m_model2View.map(offsetPos);

        QPointF negativeSaturationPos(-1.0, negativeSaturation);
        QPointF negativeSaturationViewPos = m_model2View.map(negativeSaturationPos);

        QPointF negativeCoefficientPos(negativeSaturationValue, negativeSaturation);
        QPointF negativeCoefficientViewPos = m_model2View.map(negativeCoefficientPos);

        QPointF negativeDeadBandPos(negativeDeadBandValue, 0.0);
        QPointF negativeDeadBandViewPos = m_model2View.map(negativeDeadBandPos);

        QPointF positiveDeadBandPos(positiveDeadBandValue, 0.0);
        QPointF positiveDeadBandViewPos = m_model2View.map(positiveDeadBandPos);

        QPointF positiveCoefficientPos(positiveSaturationValue, positiveSaturation);
        QPointF positiveCoefficientViewPos = m_model2View.map(positiveCoefficientPos);

        QPointF positiveSaturationPos(1.0, positiveSaturation);
        QPointF positiveSaturationViewPos = m_model2View.map(positiveSaturationPos);
//.........这里部分代码省略.........

void Playground::SetEnvironment()
{
    ClearEnvironment();

    countingTimeText = scene.addSimpleText(QString("0"));
    countingTimeText->setPos(-100, 100);

    srand(numberAgents * numberObstacles);

    Obstacle * tempObstacle;
    QPolygonF polygon;
    int centerX, centerY;
    qreal koef = 0.5;
    for(int loop1 = 0; loop1 < numberObstacles; loop1++)
    {
        tempObstacle = new Obstacle();
        polygon.clear();
        centerX = rand() % 10 * 100 - 25 + rand() % 50;
        centerY = rand() % 10 * 100 - 25 + rand() % 50;

        int size = 30;
        switch(rand() % 3)
        {
        case 0:
            polygon.push_back(QPointF(koef * (centerX - size), koef * (centerY - size)));
            polygon.push_back(QPointF(koef * (centerX + size), koef * (centerY - size)));
            polygon.push_back(QPointF(koef * (centerX), koef * (centerY + size)));
            break;
        case 1:
            polygon.push_back(QPointF(koef * (centerX - size), koef * (centerY - size)));
            polygon.push_back(QPointF(koef * (centerX + size), koef * (centerY)));
            polygon.push_back(QPointF(koef * (centerX - size), koef * (centerY + size)));
            break;
        case 2:
            polygon.push_back(QPointF(koef * (centerX - size), koef * (centerY - size)));
            polygon.push_back(QPointF(koef * (centerX + size), koef * (centerY - size)));
            polygon.push_back(QPointF(koef * (centerX - size), koef * (centerY + size)));
            break;
        }
        tempObstacle->setPolygon(polygon);
        obstacle.push_back(tempObstacle);
        scene.addItem(tempObstacle);
    }

    Agent * tempAgent;
    PotentialField * tempField;
    GoalPoint * tempGoal;

    int agentX, agentY;
    int agentWidth = 5;
    for(int loop1 = 0; loop1 < numberAgents; loop1++)
    {
        switch(loop1 % 4)
        {
        case 0 :
            agentX = -40;
            agentY = rand() % 100 * 5;
            break;
        case 1 :
            agentX = 510;
            agentY = rand() % 100 * 5;
            break;

        case 2 :
            agentY = -40;
            agentX = rand() % 100 * 5;
            break;
        case 3 :
            agentY = 510;
            agentX = rand() % 100 * 5;
            break;
        }

        tempAgent = new Agent(agentX, agentY, agentWidth, agentWidth, 0);
        tempAgent->SetGoal(470 - agentX, 470 - agentY);
        tempGoal = new GoalPoint(470 - agentX - 5, 470 - agentY - 5, 10, 10, 0);
        tempField = new PotentialField(tempAgent, agentX, agentY, 0);
        tempAgent->SetField(tempField);

        agent.push_back(tempAgent);
        scene.addItem(tempAgent);
        field.push_back(tempField);
        scene.addItem(tempField);
        goalPoint.push_back(tempGoal);
        scene.addItem(tempGoal);
    }

}

void SkyQPainter::drawDeepSkySymbol(const QPointF &pos, int type, float size, float e, float positionAngle)
{
    float x = pos.x();
    float y = pos.y();
    float zoom = Options::zoomFactor();

    int isize = int(size);

    float dx1 = -0.5*size;
    float dx2 =  0.5*size;
    float dy1 = -1.0*e*size/2.;
    float dy2 = e*size/2.;
    float x1 = x + dx1;
    float x2 = x + dx2;
    float y1 = y + dy1;
    float y2 = y + dy2;

    float dxa = -size/4.;
    float dxb =  size/4.;
    float dya = -1.0*e*size/4.;
    float dyb = e*size/4.;
    float xa = x + dxa;
    float xb = x + dxb;
    float ya = y + dya;
    float yb = y + dyb;

    QString color;

    float psize;

    QBrush tempBrush;

    std::function<void( float, float, float, float )> lambdaDrawEllipse;
    std::function<void( float, float, float, float )> lambdaDrawLine;
    std::function<void( float, float, float, float )> lambdaDrawCross;

    if ( Options::useAntialias() ) {
        lambdaDrawEllipse = [this]( float x, float y, float width, float height ) {
            drawEllipse( QRectF( x, y, width, height ) );
        };
        lambdaDrawLine = [this]( float x1, float y1, float x2, float y2 ) {
            drawLine( QLineF( x1, y1, x2, y2 ) );
        };
        lambdaDrawCross = [this]( float centerX, float centerY, float sizeX, float sizeY ) {
            drawLine( QLineF( centerX - sizeX/2., centerY, centerX + sizeX/2., centerY ) );
            drawLine( QLineF( centerX, centerY - sizeY/2., centerX, centerY + sizeY/2. ) );
        };
    }
    else {
        lambdaDrawEllipse = [this]( float x, float y, float width, float height ) {
            drawEllipse( QRect( x, y, width, height ) );
        };
        lambdaDrawLine = [this]( float x1, float y1, float x2, float y2 ) {
            drawLine( QLine( x1, y1, x2, y2 ) );
        };
        lambdaDrawCross = [this]( float centerX, float centerY, float sizeX, float sizeY ) {
            drawLine( QLine( centerX - sizeX/2., centerY, centerX + sizeX/2., centerY ) );
            drawLine( QLine( centerX, centerY - sizeY/2., centerX, centerY + sizeY/2. ) );
        };
    }

    switch ( type ) {
    case 0:
    case 1: //catalog star
        //Some NGC/IC objects are stars...changed their type to 1 (was double star)
        if (size<2.) size = 2.;
        lambdaDrawEllipse( x1, y1, size/2., size/2. );
        break;
    case 2: //Planet
        break;
    case 3: //Open cluster; draw circle of points
    case 13: { // Asterism
        tempBrush = brush();
        color = pen().color().name();
        setBrush( pen().color() );
        psize = 2.;
        if ( size > 50. )  psize *= 2.;
        if ( size > 100. ) psize *= 2.;
        auto putDot = [this, psize, &lambdaDrawEllipse]( float x, float y ) {
            lambdaDrawEllipse( x, y, psize, psize );
        };
        putDot( xa, y1 );
        putDot( xb, y1 );
        putDot( xa, y2 );
        putDot( xb, y2 );
        putDot( x1, ya );
        putDot( x1, yb );
        putDot( x2, ya );
        putDot( x2, yb );
        setBrush( tempBrush );
        break;
    }
    case 4: //Globular Cluster
        if (size<2.) size = 2.;
        save();
        translate( x, y );
        color = pen().color().name();
        rotate( positionAngle );  //rotate the coordinate system
        lambdaDrawEllipse( dx1, dy1, size, e*size );
        lambdaDrawCross( 0, 0, size, e*size );
//.........这里部分代码省略.........

void Draw_Triangle::updateEdgeRects()
{


  handles[0]->setRect(QRectF(QPointF(item->boundingRect().topLeft().x()-5.0,item->boundingRect().topLeft().y()-5.0),QPointF(item->boundingRect().topLeft().x()+5.0,item->boundingRect().topLeft().y()+5.0)));
  handles[1]->setRect(QRectF(QPointF(item->boundingRect().topLeft().x()-5.0,((item->boundingRect().topLeft().y()+StrtPnt.y())/2)-5.0),QPointF(item->boundingRect().topLeft().x()+5.0,((item->boundingRect().topLeft().y()+StrtPnt.y())/2)+5.0)));
  handles[2]->setRect(QRectF(QPointF(item->boundingRect().topRight().x()-5.0,item->boundingRect().topRight().y()-5.0),QPointF(item->boundingRect().topRight().x()+5.0,item->boundingRect().topRight().y()+5.0)));
  handles[3]->setRect(QRectF(QPointF(item->boundingRect().topRight().x()-5.0,((item->boundingRect().topRight().y()+EndPnt.y())/2)-5.0),QPointF(item->boundingRect().topRight().x()+5.0,((item->boundingRect().topRight().y()+EndPnt.y())/2)+5.0)));
  handles[4]->setRect(QRectF(QPointF(StrtPnt.x()-5.0,StrtPnt.y()-5.0),QPointF(StrtPnt.x()+5.0,StrtPnt.y()+5.0)));
  handles[6]->setRect(QRectF(QPointF(EndPnt.x()-5.0,EndPnt.y()-5.0),QPointF(EndPnt.x()+5.0,EndPnt.y()+5.0)));
  handles[5]->setRect(QRectF(QPointF(((StrtPnt.x()+EndPnt.x())/2)-5.0,StrtPnt.y()-5.0),QPointF((StrtPnt.x()+EndPnt.x())/2+5.0,StrtPnt.y()+5.0)));
  handles[7]->setRect(QRectF(QPointF(HeightPnt.x()-5.0,HeightPnt.y()-5.0),QPointF(HeightPnt.x()+5.0,HeightPnt.y()+5.0)));



  Bounding_Rect->setRect(QRectF(item->boundingRect().topLeft(),item->boundingRect().bottomRight()));

    QPointF pnt1,pnt2;

    pnt1.setX(((item->boundingRect().topLeft().x()+item->boundingRect().bottomRight().x())/2)-5);
    pnt1.setY(item->boundingRect().topLeft().y()-20);

    pnt2.setX(((item->boundingRect().topLeft().x()+item->boundingRect().bottomRight().x())/2)+5);
    pnt2.setY(item->boundingRect().topLeft().y()-10);

    Rot_Rect->setRect(QRectF(pnt1,pnt2));

}

void ezTimeWidget::UpdateStats()
{
  if (!isVisible())
    return;

  if (!ezTelemetry::IsConnectedToServer())
  {
    ListClocks->setEnabled(false);
    return;
  }

  ListClocks->setEnabled(true);

  if (m_bClocksChanged)
  {
    m_bClocksChanged = false;

    ListClocks->blockSignals(true);
    ListClocks->clear();

    for (ezMap<ezString, ezTimeWidget::ClockData>::Iterator it = m_ClockData.GetIterator(); it.IsValid(); ++it)
    {
      ListClocks->addItem(it.Key().GetData());

      QListWidgetItem* pItem = ListClocks->item(ListClocks->count() - 1);
      pItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsUserCheckable);
      pItem->setCheckState (it.Value().m_bDisplay ? Qt::Checked : Qt::Unchecked);
      pItem->setData(Qt::UserRole, QString(it.Key().GetData()));

      pItem->setTextColor(s_Colors[it.Value().m_iColor % s_uiMaxColors]);

      it.Value().m_pListItem = pItem;
    }

    ListClocks->blockSignals(false);
  }

  QPainterPath pp[s_uiMaxColors];

  ezTime tMin = ezTime::Seconds(100.0);
  ezTime tMax = ezTime::Seconds(0.0);

  for (ezMap<ezString, ClockData>::Iterator it = s_pWidget->m_ClockData.GetIterator(); it.IsValid(); ++it)
  {
    if (it.Value().m_TimeSamples.IsEmpty() || !it.Value().m_bDisplay)
      continue;

    const ezUInt32 uiColorPath = it.Value().m_iColor % s_uiMaxColors;
    ClockData& Clock = it.Value();
    const ezDeque<TimeSample>& Samples = Clock.m_TimeSamples;

    ezUInt32 uiFirstSample = 0;

    while ((uiFirstSample < Samples.GetCount()) && (m_MaxGlobalTime - Samples[uiFirstSample].m_AtGlobalTime > m_DisplayInterval))
      ++uiFirstSample;

    if (uiFirstSample < Samples.GetCount())
    {
      pp[uiColorPath].moveTo (QPointF((Samples[uiFirstSample].m_AtGlobalTime - m_MaxGlobalTime).GetSeconds(), Samples[uiFirstSample].m_Timestep.GetSeconds()));

      for (ezUInt32 i = uiFirstSample + 1; i < Samples.GetCount(); ++i)
      {
        pp[uiColorPath].lineTo (QPointF ((Samples[i].m_AtGlobalTime - m_MaxGlobalTime).GetSeconds(), Samples[i].m_Timestep.GetSeconds()));

        tMin = ezMath::Min(tMin, Samples[i].m_Timestep);
        tMax = ezMath::Max(tMax, Samples[i].m_Timestep);
      }
    }
  }

  for (ezUInt32 i = 0; i < s_uiMaxColors; ++i)
    m_pPath[i]->setPath(pp[i]);

  // render the helper lines for time values
  {
    QPainterPath pMax;

    for (ezUInt32 i = 1; i < 10; ++i)
    {
      pMax.moveTo(QPointF (-m_DisplayInterval.GetSeconds(), ezTime::Milliseconds(10.0 * i).GetSeconds()));
      pMax.lineTo(QPointF (0, ezTime::Milliseconds(10.0 * i).GetSeconds()));
    }

    m_pPathMax->setPath(pMax);
  }

  ezTime tShowMax = ezTime::Seconds(1.0 / 10.0);

  for (ezUInt32 t = 25; t < 100; t += 25)
  {
    tShowMax = ezTime::Milliseconds(1) * t;

    if (tMax < tShowMax)
      break;
  }

  {
    TimeView->setSceneRect (QRectF (-m_DisplayInterval.GetSeconds(), 0, m_DisplayInterval.GetSeconds(), tShowMax.GetSeconds()));
    TimeView->fitInView    (QRectF (-m_DisplayInterval.GetSeconds(), 0, m_DisplayInterval.GetSeconds(), tShowMax.GetSeconds()));
  }
//.........这里部分代码省略.........

void Draw_Triangle::setEdgeRects()
{
    QBrush rectbrush;
    rectbrush.setColor(QColor(0,175,225));
    rectbrush.setStyle(Qt::SolidPattern);
    qDebug()<<"strt pnt "<<StrtPnt<<" "<<"end pnt "<<EndPnt<<"\n";

  QGraphicsRectItem *rect = new QGraphicsRectItem(QRectF(QPointF(item->boundingRect().topLeft().x()-5.0,item->boundingRect().topLeft().y()-5.0),QPointF(item->boundingRect().topLeft().x()+5.0,item->boundingRect().topLeft().y()+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

  rect = new QGraphicsRectItem(QRectF(QPointF(item->boundingRect().topLeft().x()-5.0,(item->boundingRect().topLeft().y()+25)-5.0),QPointF(item->boundingRect().topLeft().x()+5.0,(item->boundingRect().topLeft().y()+25)+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

  rect = new QGraphicsRectItem(QRectF(QPointF(item->boundingRect().topRight().x()-5.0,item->boundingRect().topRight().y()-5.0),QPointF(item->boundingRect().topRight().x()+5.0,item->boundingRect().topRight().y()+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

  rect = new QGraphicsRectItem(QRectF(QPointF(item->boundingRect().topRight().x()-5.0,(item->boundingRect().topRight().y()+25)-5.0),QPointF(item->boundingRect().topRight().x()+5.0,(item->boundingRect().topRight().y()+25)+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

    rect = new QGraphicsRectItem(QRectF(QPointF(StrtPnt.x()-5.0,StrtPnt.y()-5.0),QPointF(StrtPnt.x()+5.0,StrtPnt.y()+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

  rect = new QGraphicsRectItem(QRectF(QPointF((StrtPnt.x()+50)-5.0,StrtPnt.y()-5.0),QPointF((StrtPnt.x()+50)+5.0,StrtPnt.y()+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

    rect = new QGraphicsRectItem(QRectF(QPointF(EndPnt.x()-5.0,EndPnt.y()-5.0),QPointF(EndPnt.x()+5.0,EndPnt.y()+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

    rect = new QGraphicsRectItem(QRectF(QPointF(HeightPnt.x()-5.0,HeightPnt.y()-5.0),QPointF(HeightPnt.x()+5.0,HeightPnt.y()+5.0)));
    rect->setBrush(rectbrush);

  handles.push_back(rect);

    QPen bound_rect;
    bound_rect.setStyle(Qt::DashLine);
    Bounding_Rect = new QGraphicsRectItem(QRectF(item->boundingRect().topLeft(),item->boundingRect().bottomRight()));
    Bounding_Rect->setPen(bound_rect);

    QPointF pnt1,pnt2;

    pnt1.setX(((item->boundingRect().topLeft().x()+item->boundingRect().bottomRight().x())/2)-5);
    pnt1.setY(item->boundingRect().topLeft().y()-20);

    pnt2.setX(((item->boundingRect().topLeft().x()+item->boundingRect().bottomRight().x())/2)+5);
    pnt2.setY(item->boundingRect().topLeft().y()-10);

    Rot_Rect = new QGraphicsEllipseItem(QRectF(pnt1,pnt2));
    Rot_Rect->setBrush(rectbrush);


}