C++ URI::getImage方法代码示例

本文整理汇总了C++中URI::getImage方法的典型用法代码示例。如果您正苦于以下问题：C++ URI::getImage方法的具体用法？C++ URI::getImage怎么用？C++ URI::getImage使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类URI的用法示例。

在下文中一共展示了URI::getImage方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: lock

bool
ResourceCache::getOrCreateLineTexture(const URI& uri, osg::ref_ptr<osg::Texture>& output, const osgDB::Options* readOptions)
{
    Threading::ScopedMutexLock lock(_texMutex);
    TextureCache::Record rec;
    if (_texCache.get(uri.full(), rec) && rec.value().valid())
    {
        output = rec.value().get();
    }
    else
    {
        osg::ref_ptr<osg::Image> image = uri.getImage(readOptions);
        if (image.valid())
        {
            osg::Texture2D* tex = new osg::Texture2D(image);
            tex->setWrap( osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE );
            tex->setWrap( osg::Texture::WRAP_T, osg::Texture::REPEAT );
            tex->setFilter( osg::Texture::MIN_FILTER, osg::Texture::LINEAR_MIPMAP_LINEAR );
            tex->setFilter( osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
            tex->setMaxAnisotropy( 4.0f );
            tex->setResizeNonPowerOfTwoHint( false );
            output = tex;
            _texCache.insert(uri.full(), output.get());
        }
    }

    return output.valid();
}

开发者ID:JD31，项目名称:osgearth，代码行数:28，代码来源:ResourceCache.cpp

示例2: in

bool
LandCoverBiome::configure(const ConfigOptions& conf, const osgDB::Options* dbo)
{
    LandCoverBiomeOptions in( conf );

    if ( in.biomeClasses().isSet() )
        setClasses( in.biomeClasses().get() );

    for(SymbolVector::const_iterator i = in.symbols().begin(); i != in.symbols().end(); ++i)
    {
        const BillboardSymbol* bs = dynamic_cast<BillboardSymbol*>( i->get() );
        if ( bs )
        {
            URI imageURI = bs->url()->evalURI();

            osg::Image* image = const_cast<osg::Image*>( bs->getImage() );
            if ( !image )
            {
                image = imageURI.getImage(dbo);
            }

            if ( image )
            {
                getBillboards().push_back( LandCoverBillboard(image, bs->width().get(), bs->height().get()) );
            }
            else
            {
                OE_WARN << LC << "Failed to load billboard image from \"" << imageURI.full() << "\"\n";
            }
        } 
        else
        {
            OE_WARN << LC << "Unrecognized symbol in land cover biome\n";
        }
    }

    if ( getBillboards().size() == 0 )
    {
        OE_WARN << LC << "A biome failed to install any billboards.\n";
        return false;
    }

    return true;
}

开发者ID:jhasse，项目名称:osgearth，代码行数:44，代码来源:LandCover.cpp

示例3: gen

void
PlaceNode::init(const osgDB::Options* dbOptions)
{
    _geode = new osg::Geode();
    osg::Drawable* text = 0L;

    // If there's no explicit text, look to the text symbol for content.
    if ( _text.empty() && _style.has<TextSymbol>() )
        _text = _style.get<TextSymbol>()->content()->eval();

    osg::ref_ptr<const InstanceSymbol> instance = _style.get<InstanceSymbol>();

    // backwards compability, support for deprecated MarkerSymbol
    if ( !instance.valid() && _style.has<MarkerSymbol>() )
        instance = _style.get<MarkerSymbol>()->convertToInstanceSymbol();

    const IconSymbol* icon = instance->asIcon();

    if ( !_image.valid() )
    {
        URI imageURI;

        if ( icon )
        {
            if ( icon->url().isSet() )
            {
                imageURI = URI( icon->url()->eval(), icon->url()->uriContext() );
            }
        }

        if ( !imageURI.empty() )
        {
            _image = imageURI.getImage( dbOptions );
        }
    }

    // found an image; now format it:
    if ( _image.get() )
    {
        // this offset anchors the image at the bottom
        osg::Vec2s offset;
        if ( !icon || !icon->alignment().isSet() )
        {
            // default to bottom center
            offset.set(0.0, (_image->t() / 2.0));
        }
        else
        {   // default to bottom center
            switch (icon->alignment().value())
            {
            case IconSymbol::ALIGN_LEFT_TOP:
                offset.set((_image->s() / 2.0), -(_image->t() / 2.0));
                break;
            case IconSymbol::ALIGN_LEFT_CENTER:
                offset.set((_image->s() / 2.0), 0.0);
                break;
            case IconSymbol::ALIGN_LEFT_BOTTOM:
                offset.set((_image->s() / 2.0), (_image->t() / 2.0));
                break;
            case IconSymbol::ALIGN_CENTER_TOP:
                offset.set(0.0, -(_image->t() / 2.0));
                break;
            case IconSymbol::ALIGN_CENTER_CENTER:
                offset.set(0.0, 0.0);
                break;
            case IconSymbol::ALIGN_CENTER_BOTTOM:
            default:
                offset.set(0.0, (_image->t() / 2.0));
                break;
            case IconSymbol::ALIGN_RIGHT_TOP:
                offset.set(-(_image->s() / 2.0), -(_image->t() / 2.0));
                break;
            case IconSymbol::ALIGN_RIGHT_CENTER:
                offset.set(-(_image->s() / 2.0), 0.0);
                break;
            case IconSymbol::ALIGN_RIGHT_BOTTOM:
                offset.set(-(_image->s() / 2.0), (_image->t() / 2.0));
                break;
            }
        }

        // Apply a rotation to the marker if requested:
        double heading = 0.0;
        if ( icon && icon->heading().isSet() )
        {
            heading = osg::DegreesToRadians( icon->heading()->eval() );
        }

        //We must actually rotate the geometry itself and not use a MatrixTransform b/c the
        //decluttering doesn't respect Transforms above the drawable.
        osg::Geometry* imageGeom = AnnotationUtils::createImageGeometry( _image.get(), offset, 0, heading );
        if ( imageGeom )
            _geode->addDrawable( imageGeom );

        text = AnnotationUtils::createTextDrawable(
                   _text,
                   _style.get<TextSymbol>(),
                   osg::Vec3( (offset.x() + (_image->s() / 2.0) + 2), offset.y(), 0 ) );
    }
    else
//.........这里部分代码省略.........

开发者ID:ReWeb3D，项目名称:osgearth，代码行数:101，代码来源:PlaceNode.cpp

示例4: getAttachPoint

void
PlaceNode::init()
{
    //reset.
    this->clearDecoration();
    getAttachPoint()->removeChildren(0, getAttachPoint()->getNumChildren());

    _geode = new osg::Geode();
    osg::Drawable* text = 0L;

    // If there's no explicit text, look to the text symbol for content.
    if ( _text.empty() && _style.has<TextSymbol>() )
    {
        _text = _style.get<TextSymbol>()->content()->eval();
    }

    osg::ref_ptr<const InstanceSymbol> instance = _style.get<InstanceSymbol>();

    // backwards compability, support for deprecated MarkerSymbol
    if ( !instance.valid() && _style.has<MarkerSymbol>() )
    {
        instance = _style.get<MarkerSymbol>()->convertToInstanceSymbol();
    }

    const IconSymbol* icon = instance->asIcon();

    if ( !_image.valid() )
    {
        URI imageURI;

        if ( icon )
        {
            if ( icon->url().isSet() )
            {
                imageURI = URI( icon->url()->eval(), icon->url()->uriContext() );
            }
        }

        if ( !imageURI.empty() )
        {
            _image = imageURI.getImage( _dbOptions.get() );
        }
    }

    // found an image; now format it:
    if ( _image.get() )
    {
        // Scale the icon if necessary
        double scale = 1.0;
        if ( icon && icon->scale().isSet() )
        {
            scale = icon->scale()->eval();
        }

        double s = scale * _image->s();
        double t = scale * _image->t();

        // this offset anchors the image at the bottom
        osg::Vec2s offset;
        if ( !icon || !icon->alignment().isSet() )
        {	
            // default to bottom center
            offset.set(0.0, t / 2.0);
        }
        else
        {	// default to bottom center
            switch (icon->alignment().value())
            {
            case IconSymbol::ALIGN_LEFT_TOP:
                offset.set((s / 2.0), -(t / 2.0));
                break;
            case IconSymbol::ALIGN_LEFT_CENTER:
                offset.set((s / 2.0), 0.0);
                break;
            case IconSymbol::ALIGN_LEFT_BOTTOM:
                offset.set((s / 2.0), (t / 2.0));
                break;
            case IconSymbol::ALIGN_CENTER_TOP:
                offset.set(0.0, -(t / 2.0));
                break;
            case IconSymbol::ALIGN_CENTER_CENTER:
                offset.set(0.0, 0.0);
                break;
            case IconSymbol::ALIGN_CENTER_BOTTOM:
            default:
                offset.set(0.0, (t / 2.0));
                break;
            case IconSymbol::ALIGN_RIGHT_TOP:
                offset.set(-(s / 2.0), -(t / 2.0));
                break;
            case IconSymbol::ALIGN_RIGHT_CENTER:
                offset.set(-(s / 2.0), 0.0);
                break;
            case IconSymbol::ALIGN_RIGHT_BOTTOM:
                offset.set(-(s / 2.0), (t / 2.0));
                break;
            }
        }

        // Apply a rotation to the marker if requested:
//.........这里部分代码省略.........

开发者ID:APerennec，项目名称:osgearth，代码行数:101，代码来源:PlaceNode.cpp

示例5: if

void
PlaceNode::init()
{
    Decluttering::setEnabled( this->getOrCreateStateSet(), true );

    osgEarth::clearChildren( getPositionAttitudeTransform() );

    _geode = new osg::Geode();

    // ensure that (0,0,0) is the bounding sphere control/center point.
    // useful for things like horizon culling.
    _geode->setComputeBoundingSphereCallback(new ControlPointCallback());

    osg::Drawable* text = 0L;

    // If there's no explicit text, look to the text symbol for content.
    if ( _text.empty() && _style.has<TextSymbol>() )
    {
        _text = _style.get<TextSymbol>()->content()->eval();
    }

    osg::ref_ptr<const InstanceSymbol> instance = _style.get<InstanceSymbol>();

    // backwards compability, support for deprecated MarkerSymbol
    if ( !instance.valid() && _style.has<MarkerSymbol>() )
    {
        instance = _style.get<MarkerSymbol>()->convertToInstanceSymbol();
    }

    const IconSymbol* icon = instance->asIcon();

    if ( !_image.valid() )
    {
        URI imageURI;

        if ( icon )
        {
            if ( icon->url().isSet() )
            {
                imageURI = icon->url()->evalURI();
            }
            else if (icon->getImage())
            {
                _image = icon->getImage();
            }
        }

        if ( !imageURI.empty() )
        {
            _image = imageURI.getImage( _dbOptions.get() );
        }
    }

    osg::BoundingBox imageBox(0,0,0,0,0,0);

    // found an image; now format it:
    if ( _image.get() )
    {
        // Scale the icon if necessary
        double scale = 1.0;
        if ( icon && icon->scale().isSet() )
        {
            scale = icon->scale()->eval();
        }

        double s = scale * _image->s();
        double t = scale * _image->t();

        // this offset anchors the image at the bottom
        osg::Vec2s offset;
        if ( !icon || !icon->alignment().isSet() )
        {	
            // default to bottom center
            offset.set(0.0, t / 2.0);
        }
        else
        {	// default to bottom center
            switch (icon->alignment().value())
            {
            case IconSymbol::ALIGN_LEFT_TOP:
                offset.set((s / 2.0), -(t / 2.0));
                break;
            case IconSymbol::ALIGN_LEFT_CENTER:
                offset.set((s / 2.0), 0.0);
                break;
            case IconSymbol::ALIGN_LEFT_BOTTOM:
                offset.set((s / 2.0), (t / 2.0));
                break;
            case IconSymbol::ALIGN_CENTER_TOP:
                offset.set(0.0, -(t / 2.0));
                break;
            case IconSymbol::ALIGN_CENTER_CENTER:
                offset.set(0.0, 0.0);
                break;
            case IconSymbol::ALIGN_CENTER_BOTTOM:
            default:
                offset.set(0.0, (t / 2.0));
                break;
            case IconSymbol::ALIGN_RIGHT_TOP:
                offset.set(-(s / 2.0), -(t / 2.0));
//.........这里部分代码省略.........

开发者ID:2php，项目名称:osgearth，代码行数:101，代码来源:PlaceNode.cpp

注：本文中的URI::getImage方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。