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253 lines
7.6 KiB
C++
253 lines
7.6 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCompositeDataDisplayAttributes.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkCompositeDataDisplayAttributes
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* @brief Rendering attributes for a multi-block dataset.
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*
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* The vtkCompositeDataDisplayAttributes class stores display attributes
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* for individual blocks in a multi-block dataset. It uses the actual data
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* block's pointer as a key (vtkDataObject*).
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*
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* @warning It is considered unsafe to dereference key pointers at any time,
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* they should only serve as keys to access the internal map.
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*/
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#ifndef vtkCompositeDataDisplayAttributes_h
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#define vtkCompositeDataDisplayAttributes_h
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#include <functional> // for std::function
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#include <unordered_map> // for std::unordered_map
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#include "vtkColor.h" // for vtkColor3d
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#include "vtkObject.h"
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#include "vtkRenderingCoreModule.h" // for export macro
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class vtkBoundingBox;
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class vtkDataObject;
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class VTKRENDERINGCORE_EXPORT vtkCompositeDataDisplayAttributes : public vtkObject
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{
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public:
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static vtkCompositeDataDisplayAttributes* New();
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vtkTypeMacro(vtkCompositeDataDisplayAttributes, vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Returns true if any block has any block visibility is set.
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*/
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bool HasBlockVisibilities() const;
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//@{
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/**
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* Set/get the visibility for the block with \p data_object.
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*/
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void SetBlockVisibility(vtkDataObject* data_object, bool visible);
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bool GetBlockVisibility(vtkDataObject* data_object) const;
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//@}
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/**
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* Returns true if the block with the given data_object has a visibility
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* set.
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*/
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bool HasBlockVisibility(vtkDataObject* data_object) const;
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/**
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* Removes the block visibility flag for the block with data_object.
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*/
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void RemoveBlockVisibility(vtkDataObject* data_object);
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/**
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* Removes all block visibility flags. This effectively sets the visibility
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* for all blocks to true.
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*/
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void RemoveBlockVisibilities();
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// This method is deprecated and will be removed in VTK 8.2. It is misspelled.
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VTK_LEGACY(void RemoveBlockVisibilites());
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/**
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* Returns true if any block has any block pickability is set.
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*/
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bool HasBlockPickabilities() const;
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//@{
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/**
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* Set/get the pickability for the block with \p data_object.
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*/
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void SetBlockPickability(vtkDataObject* data_object, bool visible);
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bool GetBlockPickability(vtkDataObject* data_object) const;
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//@}
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/**
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* Returns true if the block with the given data_object has a pickability
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* set.
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*/
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bool HasBlockPickability(vtkDataObject* data_object) const;
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/**
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* Removes the block pickability flag for the block with data_object.
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*/
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void RemoveBlockPickability(vtkDataObject* data_object);
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/**
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* Removes all block pickability flags. This effectively sets the pickability
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* for all blocks to true.
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*/
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void RemoveBlockPickabilities();
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//@{
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/**
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* Set/get the color for the block with \p data_object.
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*/
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void SetBlockColor(vtkDataObject* data_object, const double color[3]);
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void GetBlockColor(vtkDataObject* data_object, double color[3]) const;
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vtkColor3d GetBlockColor(vtkDataObject* data_object) const;
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//@}
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/**
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* Returns true if any block has any block color is set.
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*/
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bool HasBlockColors() const;
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/**
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* Returns true if the block with the given \p data_object has a color.
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*/
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bool HasBlockColor(vtkDataObject* data_object) const;
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/**
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* Removes the block color for the block with \p data_object.
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*/
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void RemoveBlockColor(vtkDataObject* data_object);
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/**
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* Removes all block colors.
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*/
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void RemoveBlockColors();
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//@{
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/**
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* Set/get the opacity for the block with data_object.
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*/
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void SetBlockOpacity(vtkDataObject* data_object, double opacity);
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double GetBlockOpacity(vtkDataObject* data_object) const;
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//@}
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/**
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* Returns true if any block has an opacity set.
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*/
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bool HasBlockOpacities() const;
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/**
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* Returns true if the block with data_object has an opacity set.
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*/
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bool HasBlockOpacity(vtkDataObject* data_object) const;
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/**
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* Removes the set opacity for the block with data_object.
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*/
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void RemoveBlockOpacity(vtkDataObject* data_object);
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/**
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* Removes all block opacities.
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*/
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void RemoveBlockOpacities();
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//@{
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/**
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* Set/get the material for the block with data_object.
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* Only rendering backends that support advanced materials need to respect these.
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*/
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void SetBlockMaterial(vtkDataObject* data_object, const std::string& material);
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const std::string& GetBlockMaterial(vtkDataObject* data_object) const;
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//@}
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/**
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* Returns true if any block has an material set.
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*/
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bool HasBlockMaterials() const;
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/**
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* Returns true if the block with data_object has an material set.
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*/
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bool HasBlockMaterial(vtkDataObject* data_object) const;
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/**
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* Removes the set material for the block with data_object.
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*/
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void RemoveBlockMaterial(vtkDataObject* data_object);
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/**
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* Removes all block materialss.
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*/
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void RemoveBlockMaterials();
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/**
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* If the input \a dobj is a vtkCompositeDataSet, we will loop over the
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* hierarchy recursively starting from initial index 0 and use only visible
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* blocks, which is specified in the vtkCompositeDataDisplayAttributes \a cda,
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* to compute the \a bounds.
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*/
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static void ComputeVisibleBounds(
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vtkCompositeDataDisplayAttributes* cda, vtkDataObject* dobj, double bounds[6]);
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/**
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* Get the DataObject corresponding to the node with index flat_index under
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* parent_obj. Traverses the entire hierarchy recursively.
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*/
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static vtkDataObject* DataObjectFromIndex(
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const unsigned int flat_index, vtkDataObject* parent_obj, unsigned int& current_flat_index);
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void VisitVisibilities(std::function<bool(vtkDataObject*, bool)> visitor)
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{
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for (auto entry : this->BlockVisibilities)
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{
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if (visitor(entry.first, entry.second))
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{
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break;
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}
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}
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}
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protected:
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vtkCompositeDataDisplayAttributes();
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~vtkCompositeDataDisplayAttributes() override;
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private:
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vtkCompositeDataDisplayAttributes(const vtkCompositeDataDisplayAttributes&) = delete;
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void operator=(const vtkCompositeDataDisplayAttributes&) = delete;
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/**
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* If the input data \a dobj is a vtkCompositeDataSet, we will
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* loop over the hierarchy recursively starting from the initial block
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* and use only visible blocks, which is specified in the
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* vtkCompositeDataDisplayAttributes \a cda, to compute bounds and the
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* result bounds will be set to the vtkBoundingBox \a bbox. The \a parentVisible
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* is the visibility for the starting block.
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*/
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static void ComputeVisibleBoundsInternal(vtkCompositeDataDisplayAttributes* cda,
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vtkDataObject* dobj, vtkBoundingBox* bbox, bool parentVisible = true);
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using BoolMap = std::unordered_map<vtkDataObject*, bool>;
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using DoubleMap = std::unordered_map<vtkDataObject*, double>;
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using ColorMap = std::unordered_map<vtkDataObject*, vtkColor3d>;
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using StringMap = std::unordered_map<vtkDataObject*, std::string>;
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BoolMap BlockVisibilities;
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ColorMap BlockColors;
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DoubleMap BlockOpacities;
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StringMap BlockMaterials;
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BoolMap BlockPickabilities;
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};
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#endif // vtkCompositeDataDisplayAttributes_h
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