本文整理汇总了C++中Box2i::isEmpty方法的典型用法代码示例。如果您正苦于以下问题：C++ Box2i::isEmpty方法的具体用法？C++ Box2i::isEmpty怎么用？C++ Box2i::isEmpty使用的例子？那么, 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Box2i的用法示例。
在下文中一共展示了Box2i::isEmpty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: image
IECore::ImagePrimitivePtr ImagePlug::image() const
{
Format format = formatPlug()->getValue();
Box2i dataWindow = dataWindowPlug()->getValue();
Box2i newDataWindow( Imath::V2i(0) );
if( dataWindow.isEmpty() )
{
dataWindow = Box2i( Imath::V2i(0) );
}
else
{
newDataWindow = format.yDownToFormatSpace( dataWindow );
}
ImagePrimitivePtr result = new ImagePrimitive( newDataWindow, format.getDisplayWindow() );
ConstStringVectorDataPtr channelNamesData = channelNamesPlug()->getValue();
const vector<string> &channelNames = channelNamesData->readable();
vector<float *> imageChannelData;
for( vector<string>::const_iterator it = channelNames.begin(), eIt = channelNames.end(); it!=eIt; it++ )
{
FloatVectorDataPtr cd = new FloatVectorData;
vector<float> &c = cd->writable();
c.resize( result->variableSize( PrimitiveVariable::Vertex ), 0.0f );
result->variables[*it] = PrimitiveVariable( PrimitiveVariable::Vertex, cd );
imageChannelData.push_back( &(c[0]) );
}
parallel_for( blocked_range2d<size_t>( 0, dataWindow.size().x+1, tileSize(), 0, dataWindow.size().y+1, tileSize() ),
GafferImage::Detail::CopyTiles( imageChannelData, channelNames, channelDataPlug(), dataWindow, Context::current(), tileSize()) );
return result;
}示例2: setDisplayWindow
void ImagePrimitive::setDisplayWindow( const Box2i &displayWindow )
{
if ( displayWindow.isEmpty() )
{
throw InvalidArgumentException( "ImagePrimitive: Cannot set displayWindow to the empty window" );
}
m_displayWindow = displayWindow;
}示例3: hashChannelNames
void OSLImage::hashChannelNames( const GafferImage::ImagePlug *output, const Gaffer::Context *context, IECore::MurmurHash &h ) const
{
ImageProcessor::hashChannelNames( output, context, h );
inPlug()->channelNamesPlug()->hash( h );
const Box2i dataWindow = inPlug()->dataWindowPlug()->getValue();
if( !dataWindow.isEmpty() )
{
ContextPtr c = new Context( *context, Context::Borrowed );
c->set( ImagePlug::tileOriginContextName, ImagePlug::tileOrigin( dataWindow.min ) );
Context::Scope s( c.get() );
shadingPlug()->hash( h );
}
}示例4: image
IECore::ImagePrimitivePtr ImagePlug::image() const
{
Format format = formatPlug()->getValue();
Box2i dataWindow = dataWindowPlug()->getValue();
Box2i newDataWindow( Imath::V2i(0) );
if( dataWindow.isEmpty() )
{
dataWindow = Box2i( Imath::V2i(0) );
}
else
{
newDataWindow = format.yDownToFormatSpace( dataWindow );
}
// use the default format if we don't have an explicit one.
/// \todo: remove this once FormatPlug is handling it for
/// us during ExecutableNode::execute (see issue #887).
if( format.getDisplayWindow().isEmpty() )
{
format = Context::current()->get<Format>( Format::defaultFormatContextName, Format() );
}
ImagePrimitivePtr result = new ImagePrimitive( newDataWindow, format.getDisplayWindow() );
ConstCompoundObjectPtr metadata = metadataPlug()->getValue();
compoundObjectToCompoundData( metadata.get(), result->blindData() );
ConstStringVectorDataPtr channelNamesData = channelNamesPlug()->getValue();
const vector<string> &channelNames = channelNamesData->readable();
vector<float *> imageChannelData;
for( vector<string>::const_iterator it = channelNames.begin(), eIt = channelNames.end(); it!=eIt; it++ )
{
FloatVectorDataPtr cd = new FloatVectorData;
vector<float> &c = cd->writable();
c.resize( result->variableSize( PrimitiveVariable::Vertex ), 0.0f );
result->variables[*it] = PrimitiveVariable( PrimitiveVariable::Vertex, cd );
imageChannelData.push_back( &(c[0]) );
}
parallel_for( blocked_range3d<size_t>( 0, imageChannelData.size(), 1, 0, dataWindow.size().x+1, tileSize(), 0, dataWindow.size().y+1, tileSize() ),
GafferImage::Detail::CopyTiles( imageChannelData, channelNames, channelDataPlug(), dataWindow, Context::current(), tileSize()) );
return result;
}示例5: computeChannelNames
IECore::ConstStringVectorDataPtr OSLImage::computeChannelNames( const Gaffer::Context *context, const GafferImage::ImagePlug *parent ) const
{
ConstStringVectorDataPtr channelNamesData = inPlug()->channelNamesPlug()->getValue();
set<string> result( channelNamesData->readable().begin(), channelNamesData->readable().end() );
const Box2i dataWindow = inPlug()->dataWindowPlug()->getValue();
if( !dataWindow.isEmpty() )
{
ContextPtr c = new Context( *context, Context::Borrowed );
c->set( ImagePlug::tileOriginContextName, ImagePlug::tileOrigin( dataWindow.min ) );
Context::Scope s( c.get() );
ConstCompoundDataPtr shading = runTimeCast<const CompoundData>( shadingPlug()->getValue() );
for( CompoundDataMap::const_iterator it = shading->readable().begin(), eIt = shading->readable().end(); it != eIt; ++it )
{
result.insert( it->first );
}
}
return new StringVectorData( vector<string>( result.begin(), result.end() ) );
}