inviwo::MeshDrawer Class Reference

#include <inviwo/core/rendering/meshdrawer.h>

Inheritance diagram for inviwo::MeshDrawer:

Public Member Functions
virtual void	draw ()=0
virtual const Mesh *	getMesh () const =0

Protected Member Functions
virtual bool	canDraw (const Mesh *geom) const =0
virtual MeshDrawer *	create (const Mesh *geom) const =0

Friends
class	MeshDrawerFactory

Detailed Description

Base class for drawers capable of drawing Geometry. A derived MeshDrawer should be registered by the module. The MeshDrawerFactory can be used to get a drawer without knowing the type of Geometry. This is enabled by implementing the abstract functions canRender and create.

Example of how to implement a derived MeshDrawer.

class IVW_XXX_API DerivedDrawer: public MeshDrawer {
public:
    DerivedDrawer(const DerivedMesh* g): MeshDrawer(), geomToRender_(g) {};
    virtual void draw() { // do stuff
    }
    virtual const Mesh* getMesh() const { return geomToRender_; }
protected:
    virtual DerivedDrawer* create(const Mesh* geom) const {
        return new DerivedDrawer(static_cast<const DerivedMesh*>(geom));
    }
    virtual bool canRender(const Mesh* geom) const {
        return dynamic_cast<const DerivedMesh*>(geom) != nullptr;
    }
private:
    const DerivedMesh* geomToRender_;
};

See also

Geometry

MeshDrawerFactory

Module

Member Function Documentation

canDraw()

virtual bool inviwo::MeshDrawer::canDraw ( const Mesh * geom ) const

protectedpure virtual

Determine if the renderer can render geometry.

Parameters

geom	The Geometry to draw

Returns

Return true if able to render the Geometry, otherwise false.

Implemented in inviwo::MeshDrawerGL.

create()

virtual MeshDrawer * inviwo::MeshDrawer::create ( const Mesh * geom ) const

protectedpure virtual

Return a new object of the derived class.

Note

The MeshDrawer does not take ownership of the Geometry.

Parameters

geom	The geometry to render. This will always be of a type that canDraw return true for.

Returns

A new renderer.

Implemented in inviwo::MeshDrawerGL.

draw()

virtual void inviwo::MeshDrawer::draw ( )

pure virtual

Draw the geometry the renderer was created for.

Implemented in inviwo::MeshDrawerGL.

getMesh()

virtual const Mesh * inviwo::MeshDrawer::getMesh ( ) const

pure virtual

Get the geometry to render.

Returns

Implemented in inviwo::MeshDrawerGL.

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The documentation for this class was generated from the following file:

• include/inviwo/core/rendering/meshdrawer.h