C++ StelPainter::drawSprite2dMode方法代码示例

void NebulaMgr::drawPointer(const StelCore* core, StelPainter& sPainter)
{
	const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000);

	const QList<StelObjectP> newSelected = GETSTELMODULE(StelObjectMgr)->getSelectedObject("Nebula");
	if (!newSelected.empty())
	{
		const StelObjectP obj = newSelected[0];
		Vec3d pos=obj->getJ2000EquatorialPos(core);

		// Compute 2D pos and return if outside screen
		if (!prj->projectInPlace(pos)) return;		
		if (StelApp::getInstance().getVisionModeNight())
			sPainter.setColor(0.8f,0.0f,0.0f);
		else
			sPainter.setColor(0.4f,0.5f,0.8f);

		texPointer->bind();

		sPainter.enableTexture2d(true);
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Normal transparency mode

		// Size on screen
		float size = obj->getAngularSize(core)*M_PI/180.*prj->getPixelPerRadAtCenter();

		size+=20.f + 10.f*std::sin(2.f * StelApp::getInstance().getTotalRunTime());
		sPainter.drawSprite2dMode(pos[0]-size/2, pos[1]-size/2, 10, 90);
		sPainter.drawSprite2dMode(pos[0]-size/2, pos[1]+size/2, 10, 0);
		sPainter.drawSprite2dMode(pos[0]+size/2, pos[1]+size/2, 10, -90);
		sPainter.drawSprite2dMode(pos[0]+size/2, pos[1]-size/2, 10, -180);
	}
}

void Galaxy::draw(StelCore* core, StelPainter& painter, float)
{
    StelSkyDrawer* sd = core->getSkyDrawer();

    Vec3f color = Vec3f(0.4f,0.5f,1.2f);
    if (StelApp::getInstance().getVisionModeNight())
        color = StelUtils::getNightColor(color);

    double mag = getVMagnitude(core, true);

    StelUtils::spheToRect(RA, DE, XYZ);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glEnable(GL_BLEND);
    glEnable(GL_TEXTURE_2D);
    painter.setColor(color[0], color[1], color[2], Galaxy::galaxyBrightness);
    glColor4f(color[0],color[1],color[2], Galaxy::galaxyBrightness);

    if (mag <= sd->getLimitMagnitude())
    {
        Galaxy::markerTexture->bind();

        float size = getAngularSize(NULL)*M_PI/180.*painter.getProjector()->getPixelPerRadAtCenter();
        float shift = 5.f + size/1.6f;
            if (GETSTELMODULE(POGS)->getDisplayMode())
            {
                painter.drawSprite2dMode(XYZ, 6);
                painter.drawText(XYZ, " ", 0, shift, shift, false);
            }
            else
            {
                painter.drawSprite2dMode(XYZ, 6);
                painter.drawText(XYZ, designation, 0, shift, shift, false);
            }
    }
}

void StarMgr::drawPointer(StelPainter& sPainter, const StelCore* core)
{
	const QList<StelObjectP> newSelected = objectMgr->getSelectedObject("Star");
	if (!newSelected.empty())
	{
		const StelObjectP obj = newSelected[0];
		Vec3d pos=obj->getJ2000EquatorialPos(core);

		Vec3d screenpos;
		// Compute 2D pos and return if outside screen
		if (!sPainter.getProjector()->project(pos, screenpos))
			return;

		Vec3f c(obj->getInfoColor());
		if (StelApp::getInstance().getVisionModeNight())
			c = StelUtils::getNightColor(c);

		sPainter.setColor(c[0], c[1], c[2]);
		texPointer->bind();
		sPainter.enableTexture2d(true);
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Normal transparency mode
		sPainter.drawSprite2dMode(screenpos[0], screenpos[1], 13.f, StelApp::getInstance().getTotalRunTime()*40.);
	}
}

void Quasar::draw(StelCore* core, StelPainter& painter)
{
	StelSkyDrawer* sd = core->getSkyDrawer();

	Vec3f color = sd->indexToColor(BvToColorIndex(bV))*0.75f;
	Vec3f dcolor = Vec3f(1.2f,0.5f,0.4f);
	if (StelApp::getInstance().getVisionModeNight())
		dcolor = StelUtils::getNightColor(dcolor);

	float rcMag[2], size, shift;
	double mag;

	StelUtils::spheToRect(qRA, qDE, XYZ);
        mag = getVMagnitude(core, true);	

	if (GETSTELMODULE(Quasars)->getDisplayMode())
	{
		glEnable(GL_BLEND);
		glBlendFunc(GL_ONE, GL_ONE);
		painter.setColor(dcolor[0], dcolor[1], dcolor[2], 1);

		Quasar::markerTexture->bind();
		size = getAngularSize(NULL)*M_PI/180.*painter.getProjector()->getPixelPerRadAtCenter();
		shift = 5.f + size/1.6f;
		if (labelsFader.getInterstate()<=0.f)
		{
			painter.drawSprite2dMode(XYZ, 4);
			painter.drawText(XYZ, " ", 0, shift, shift, false);
		}
	}
	else
	{
		sd->preDrawPointSource(&painter);
	
		if (mag <= sd->getLimitMagnitude())
		{
			sd->computeRCMag(mag, rcMag);
			//sd->drawPointSource(&painter, Vec3f(XYZ[0], XYZ[1], XYZ[2]), rcMag, sd->indexToColor(BvToColorIndex(bV)), false);
			sd->drawPointSource(&painter, XYZ, rcMag, sd->indexToColor(BvToColorIndex(bV)), false);
			painter.setColor(color[0], color[1], color[2], 1);
			size = getAngularSize(NULL)*M_PI/180.*painter.getProjector()->getPixelPerRadAtCenter();
			shift = 6.f + size/1.8f;
			if (labelsFader.getInterstate()<=0.f)
			{
				painter.drawText(XYZ, designation, 0, shift, shift, false);
			}
		}

		sd->postDrawPointSource(&painter);
	}
}

void TleTraj::draw(const StelCore *core, StelPainter& painter)
{
    Vec3d pos;
    satd2StelCoord(curData, pos);
    XYZ = core->altAzToJ2000(pos);
    Vec3d xy;
    if (painter.getProjector()->project(pos, xy))
    {
        glEnable(GL_TEXTURE_2D);
        glColor3f(orbitColor->redF(), orbitColor->greenF(), orbitColor->blueF());
        hintTexture->bind();
        painter.drawSprite2dMode(xy[0], xy[1], 16);
        glDisable(GL_TEXTURE_2D);
        drawOrbit(painter);
    }
}

void Nebula::drawHints(StelPainter& sPainter, float maxMagHints)
{
	float lim = mag;
	if (lim > 50) lim = 15.f;

	// temporary workaround of this bug: https://bugs.launchpad.net/stellarium/+bug/1115035 --AW
	if (getEnglishName().contains("Pleiades"))
		lim = 5.f;

	if (lim>maxMagHints)
		return;
	glEnable(GL_BLEND);
	glBlendFunc(GL_ONE, GL_ONE);
	float lum = 1.f;//qMin(1,4.f/getOnScreenSize(core))*0.8;
	Vec3f col(circleColor[0]*lum*hintsBrightness, circleColor[1]*lum*hintsBrightness, circleColor[2]*lum*hintsBrightness);

	sPainter.setColor(col[0], col[1], col[2], 1);
	switch (nType)
	{
		case NebGx:
			Nebula::texGalaxy->bind();
			break;
		case NebOc:
			Nebula::texOpenCluster->bind();
			break;
		case NebGc:
			Nebula::texGlobularCluster->bind();
			break;
		case NebN:
			Nebula::texDiffuseNebula->bind();
			break;
		case NebPn:
			Nebula::texPlanetaryNebula->bind();
			break;
		case NebCn:
			Nebula::texOpenClusterWithNebulosity->bind();
			break;
		default:
			Nebula::texCircle->bind();
	}

	sPainter.drawSprite2dMode(XY[0], XY[1], 6);
}

void Novae::drawPointer(StelCore* core, StelPainter &painter)
{
	const QList<StelObjectP> newSelected = GETSTELMODULE(StelObjectMgr)->getSelectedObject("Nova");
	if (!newSelected.empty())
	{
		const StelObjectP obj = newSelected[0];
		Vec3d pos=obj->getJ2000EquatorialPos(core);

		Vec3d screenpos;
		// Compute 2D pos and return if outside screen
		if (!painter.getProjector()->project(pos, screenpos))
			return;

		const Vec3f& c(obj->getInfoColor());
		painter.setColor(c[0],c[1],c[2]);
		texPointer->bind();
		painter.enableTexture2d(true);
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Normal transparency mode
		painter.drawSprite2dMode(screenpos[0], screenpos[1], 13.f, StelApp::getInstance().getTotalRunTime()*40.);
	}
}

void Pulsars::drawPointer(StelCore* core, StelPainter& painter)
{
	const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000);

	const QList<StelObjectP> newSelected = GETSTELMODULE(StelObjectMgr)->getSelectedObject("Pulsar");
	if (!newSelected.empty())
	{
		const StelObjectP obj = newSelected[0];
		Vec3d pos=obj->getJ2000EquatorialPos(core);

		Vec3d screenpos;
		// Compute 2D pos and return if outside screen
		if (!painter.getProjector()->project(pos, screenpos))
			return;

		const Vec3f& c(obj->getInfoColor());
		painter.setColor(c[0],c[1],c[2]);
		texPointer->bind();
		painter.setBlending(true);
		painter.drawSprite2dMode(screenpos[0], screenpos[1], 13.f, StelApp::getInstance().getTotalRunTime()*40.);
	}
}

void Nebula::drawHints(StelPainter& sPainter, float maxMagHints)
{
	float lim = mag;
	if (lim > 50) lim = 15.f;

	// temporary workaround of this bug: https://bugs.launchpad.net/stellarium/+bug/1115035 --AW
	if (getEnglishName().contains("Pleiades"))
		lim = 5.f;
	// Dark nebulae. Not sure how to assess visibility from opacity? --GZ
	if (nType==NebDn)
	{
		// GZ: ad-hoc visibility formula: assuming good visibility if objects of mag9 are visible, "usual" opacity 5 and size 30', better visibility (discernability) comes with higher opacity and larger size,
		// 9-(opac-5)-2*(angularSize-0.5)
		if (angularSize>0 && mag<50)
			lim = 15.0f - mag - 2.0f*angularSize;
		else
			lim = 9.0f;
	}
	else if (nType==NebHII || nType==NebHa)
	{ // artificially increase visibility of (most) Sharpless objects? No magnitude recorded:-(
		lim=9.0f;
	}

	if (lim>maxMagHints)
		return;

	Vec3d win;
	// Check visibility of DSO hints
	if (!(sPainter.getProjector()->projectCheck(XYZ, win)))
		return;

	glEnable(GL_BLEND);
	glBlendFunc(GL_ONE, GL_ONE);
	float lum = 1.f;//qMin(1,4.f/getOnScreenSize(core))*0.8;
	Vec3f col(circleColor[0]*lum*hintsBrightness, circleColor[1]*lum*hintsBrightness, circleColor[2]*lum*hintsBrightness);

	sPainter.setColor(col[0], col[1], col[2], 1);
	switch (nType)
	{
		case NebGx:
			Nebula::texGalaxy->bind();
			break;
		case NebOc:
			Nebula::texOpenCluster->bind();
			break;
		case NebGc:
			Nebula::texGlobularCluster->bind();
			break;
		case NebN:
		case NebHII:
		case NebRn:
			Nebula::texDiffuseNebula->bind();
			break;
		case NebPn:
			Nebula::texPlanetaryNebula->bind();
			break;
		case NebDn:		
			Nebula::texDarkNebula->bind();
			break;		
		case NebCn:
			Nebula::texOpenClusterWithNebulosity->bind();
			break;
		default:
			Nebula::texCircle->bind();
	}

	if (drawHintProportional)
	{
		float size = getAngularSize(NULL)*M_PI/180.*sPainter.getProjector()->getPixelPerRadAtCenter();
		sPainter.drawSprite2dMode(XY[0], XY[1], qMax(6.0f,size));
	}
	else
		sPainter.drawSprite2dMode(XY[0], XY[1], 6.0f);
}