Base graphics type: produces 3-D graphics visualising domains and fields. More...

#include <graphics.hpp>

Inheritance diagram for OpenCMISS::Zinc::Graphics:

Public Types
enum	RenderPolygonMode { RENDER_POLYGON_MODE_INVALID = CMZN_GRAPHICS_RENDER_POLYGON_MODE_INVALID, RENDER_POLYGON_MODE_SHADED = CMZN_GRAPHICS_RENDER_POLYGON_MODE_SHADED, RENDER_POLYGON_MODE_WIREFRAME = CMZN_GRAPHICS_RENDER_POLYGON_MODE_WIREFRAME }

enum	SelectMode { SELECT_MODE_INVALID = CMZN_GRAPHICS_SELECT_MODE_INVALID, SELECT_MODE_ON = CMZN_GRAPHICS_SELECT_MODE_ON, SELECT_MODE_OFF = CMZN_GRAPHICS_SELECT_MODE_OFF, SELECT_MODE_DRAW_SELECTED = CMZN_GRAPHICS_SELECT_MODE_DRAW_SELECTED, SELECT_MODE_DRAW_UNSELECTED = CMZN_GRAPHICS_SELECT_MODE_DRAW_UNSELECTED }

enum	Type { TYPE_INVALID = CMZN_GRAPHICS_TYPE_INVALID, TYPE_POINTS = CMZN_GRAPHICS_TYPE_POINTS, TYPE_LINES = CMZN_GRAPHICS_TYPE_LINES, TYPE_SURFACES = CMZN_GRAPHICS_TYPE_SURFACES, TYPE_CONTOURS = CMZN_GRAPHICS_TYPE_CONTOURS, TYPE_STREAMLINES = CMZN_GRAPHICS_TYPE_STREAMLINES }

Public Member Functions
	Graphics (cmzn_graphics_id graphics_id)

	Graphics (const Graphics &graphics)

Graphics &	operator= (const Graphics &graphics)

bool	isValid () const

cmzn_graphics_id	getId () const

Field	getCoordinateField ()

int	setCoordinateField (const Field &coordinateField)

Field	getDataField ()

int	setDataField (const Field &dataField)

double	getRenderLineWidth ()

int	setRenderLineWidth (double width)

double	getRenderPointSize ()

int	setRenderPointSize (double size)

enum RenderPolygonMode	getRenderPolygonMode ()

int	setRenderPolygonMode (RenderPolygonMode renderPolygonMode)

Scene	getScene ()

enum SelectMode	getSelectMode ()

int	setSelectMode (SelectMode selectMode)

Field	getSubgroupField ()

int	setSubgroupField (const Field &subgroupField)

Field	getTextureCoordinateField ()

int	setTextureCoordinateField (const Field &textureCoordinateField)

Material	getMaterial ()

int	setMaterial (const Material &material)

Graphicslineattributes	getGraphicslineattributes ()

Graphicspointattributes	getGraphicspointattributes ()

Graphicssamplingattributes	getGraphicssamplingattributes ()

Material	getSelectedMaterial ()

int	setSelectedMaterial (const Material &material)

Spectrum	getSpectrum ()

int	setSpectrum (const Spectrum &spectrum)

Tessellation	getTessellation ()

int	setTessellation (const Tessellation &tessellation)

Field	getTessellationField ()

int	setTessellationField (const Field &tessellationField)

bool	getVisibilityFlag ()

int	setVisibilityFlag (bool visibilityFlag)

enum Scenecoordinatesystem	getScenecoordinatesystem ()

int	setScenecoordinatesystem (Scenecoordinatesystem coordinateSystem)

Field::DomainType	getFieldDomainType ()

int	setFieldDomainType (Field::DomainType domainType)

char *	getName ()

int	setName (const char *name)

int	setElementFaceType (Element::FaceType faceType)

Element::FaceType	getElementFaceType ()

bool	isExterior ()

int	setExterior (bool exterior)

GraphicsContours	castContours ()

GraphicsLines	castLines ()

GraphicsPoints	castPoints ()

GraphicsStreamlines	castStreamlines ()

GraphicsSurfaces	castSurfaces ()

Protected Attributes
cmzn_graphics_id	id

Detailed Description

Base graphics type: produces 3-D graphics visualising domains and fields.

Base graphics type: produces 3-D graphics visualising domains and fields from the owning scene's region. Derived types (points, lines, surfaces, contours and streamlines) specify the algorithm used to create the graphics and may have additional type-specific attributes.

Member Enumeration Documentation

enum OpenCMISS::Zinc::Graphics::RenderPolygonMode

Enumeration controlling how polygons are rendered in GL.

Enumerator
RENDER_POLYGON_MODE_INVALID	Unspecified polygon mode
RENDER_POLYGON_MODE_SHADED	Draw filled polygons
RENDER_POLYGON_MODE_WIREFRAME	Draw polygon wireframe edge lines

enum OpenCMISS::Zinc::Graphics::SelectMode

Enumeration controlling how graphics interact with selection: whether the objects can be picked, the selection highlighted or only the selected or unselected primitives are drawn.

Enumerator
SELECT_MODE_INVALID	Unspecified select mode
SELECT_MODE_ON	draw all objects with unselected objects drawn in standard material, selected objects in selected_material, and with picking enabled. Default mode for any new graphics.
SELECT_MODE_OFF	object IDs are not generated so individual nodes/elements cannot be picked nor highlighted. More efficient if picking and highlighting are not required.
SELECT_MODE_DRAW_SELECTED	draw only selected objects in selected_material, with picking enabled
SELECT_MODE_DRAW_UNSELECTED	draw only unselected objects in standard material, with picking enabled.

enum OpenCMISS::Zinc::Graphics::Type

Enumeration giving the algorithm used to create graphics.

Enumerator
TYPE_INVALID	Unspecified graphics type
TYPE_POINTS	Points graphics visualise discrete locations in the model.
TYPE_LINES	Lines visualise 1-D elements in the model.
TYPE_SURFACES	Surfaces visualise 2-D elements in the model.
TYPE_CONTOURS	Visualises where a scalar field is equal to a constant.
TYPE_STREAMLINES	Streamlines visualise the path of a fluid particle tracking along a vector field.

Member Function Documentation

GraphicsContours OpenCMISS::Zinc::Graphics::castContours ( )

inline

If the graphics is of type contours then this function returns the derived contours graphics handle.

Returns: Handle to derived contours graphics, or NULL/invalid handle if wrong type or failed.

GraphicsLines OpenCMISS::Zinc::Graphics::castLines ( )

inline

If the graphics is of type lines then this function returns the derived lines graphics handle.

Returns: Handle to derived lines graphics, or NULL/invalid handle if wrong type or failed.

GraphicsPoints OpenCMISS::Zinc::Graphics::castPoints ( )

inline

If the graphics is of type points then this function returns the derived points graphics handle.

Returns: Handle to derived points graphics, or NULL/invalid handle if wrong type or failed.

GraphicsStreamlines OpenCMISS::Zinc::Graphics::castStreamlines ( )

inline

If the graphics is of type streamlines then this function returns the derived streamlines graphics handle.

Returns: Handle to derived streamlines graphics, or NULL/invalid handle if wrong type or failed.

GraphicsSurfaces OpenCMISS::Zinc::Graphics::castSurfaces ( )

inline

If the graphics is of type surfaces then this function returns the derived surfaces graphics handle.

Returns: Handle to derived surfaces graphics, or NULL/invalid handle if wrong type or failed.

Field OpenCMISS::Zinc::Graphics::getCoordinateField ( )

inline

Gets the field supplying coordinates for the graphics.

Returns: Handle to coordinate field, or NULL/invalid handle if none or failed.

Field OpenCMISS::Zinc::Graphics::getDataField ( )

inline

Gets the data field used with the spectrum to colour the graphics.

Returns: Handle to data field, or NULL/invalid handle if none or failed.

Graphicslineattributes OpenCMISS::Zinc::Graphics::getGraphicslineattributes ( )

inline

If the graphics produces lines or extrusions then returns a handle to the line attribute object for specifying section profile and scaling.

Returns: Handle to graphics line attributes, or NULL/invalid handle if not supported by graphics type or failed.

Graphicspointattributes OpenCMISS::Zinc::Graphics::getGraphicspointattributes ( )

inline

If the graphics produces points then returns a handle to point attribute object for specifying glyph, scaling fields, scale factors and labels.

Returns: Handle to graphics point attributes, or NULL/invalid handle if not supported by graphics type or failed.

Graphicssamplingattributes OpenCMISS::Zinc::Graphics::getGraphicssamplingattributes ( )

inline

If the graphics samples points from elements then returns a handle to sampling attribute object for specifying sampling mode, density field etc.

Returns: Handle to graphics sampling attributes, or NULL/invalid handle if not supported by graphics type or failed.

cmzn_graphics_id OpenCMISS::Zinc::Graphics::getId ( ) const

inline

Return the C handle of the Graphics object.

Returns: C handle of Graphics if this objects is valid, 0 otherwise.

Material OpenCMISS::Zinc::Graphics::getMaterial ( )

inline

Gets the material giving the colour/shading of the graphics when unselected.

Returns: Handle to material, or NULL/invalid handle on failure.

char* OpenCMISS::Zinc::Graphics::getName ( )

inline

Return the name of the graphics. The graphics has no name until user sets it.

Returns: On success: allocated string containing name, or NULL if none. Up to caller to free using cmzn_deallocate().

double OpenCMISS::Zinc::Graphics::getRenderLineWidth ( )

inline

Get the width used for rendering line primitives in GL in renderer 'point units', typically pixels for on-screen display.

Returns: The line render width in pixels, or 0.0 if bad argument.

double OpenCMISS::Zinc::Graphics::getRenderPointSize ( )

inline

Get the size used for rendering point primitives in GL in renderer 'point units', typically pixels for on-screen display.

Returns: The point render size in pixels, or 0.0 if bad argument.

enum RenderPolygonMode OpenCMISS::Zinc::Graphics::getRenderPolygonMode ( )

inline

Get mode controlling how polygons in the graphics are rendered in GL.

Returns: The render polygon mode, or CMZN_GRAPHICS_RENDER_POLYGON_MODE_INVALID if bad arguments.

Scene OpenCMISS::Zinc::Graphics::getScene ( )

inline

Get the scene owning this graphics.

Returns: Handle to scene owning graphics, or NULL/invalid handle on failure.

enum Scenecoordinatesystem OpenCMISS::Zinc::Graphics::getScenecoordinatesystem ( )

inline

Get the scene coordinate system in which to render the coordinates of graphics.

Returns: coordinate system used in graphics.

Material OpenCMISS::Zinc::Graphics::getSelectedMaterial ( )

inline

Gets the material giving the colour/shading of the graphics when selected.

Returns: Handle to material, or NULL/invalid handle if none or failed.

enum SelectMode OpenCMISS::Zinc::Graphics::getSelectMode ( )

inline

Gets the mode controlling how graphics are drawn depending on whether the underlying object is selected, and also whether picking is enabled.

Returns: The select mode, or MODE_INVALID if bad argument.

Spectrum OpenCMISS::Zinc::Graphics::getSpectrum ( )

inline

Gets the spectrum used with the data field to colour the graphics.

Returns: Handle to spectrum, or NULL/invalid handle if none or failed.

Field OpenCMISS::Zinc::Graphics::getSubgroupField ( )

inline

Gets the field which returns true/non-zero for primitive to be created.

Returns: Handle to subgroup field, or NULL/invalid handle if none or failed.

Tessellation OpenCMISS::Zinc::Graphics::getTessellation ( )

inline

Returns the tessellation object of the graphics. Caller must destroy returned handle.

Returns: Handle to tessellation, or NULL/invalid handle if none or failed.

Field OpenCMISS::Zinc::Graphics::getTessellationField ( )

inline

Gets the field controlling tessellation quality.

Returns: Handle to tessellation field, or NULL/invalid handle if none or failed.

Field OpenCMISS::Zinc::Graphics::getTextureCoordinateField ( )

inline

Get the texture coordinate field of the graphics. Caller must destroy handle.

Returns: Handle to texture coordinate field, or NULL/invalid handle if none or failed.

bool OpenCMISS::Zinc::Graphics::getVisibilityFlag ( )

inline

Return status of graphics visibility flag attribute.

Returns: Boolean value true if visibility flag is set, false if not.

bool OpenCMISS::Zinc::Graphics::isExterior ( )

inline

Gets flag to generate graphics for exterior faces or lines only.

Returns: Boolean true if the exterior flag is set, otherwise false.

bool OpenCMISS::Zinc::Graphics::isValid ( ) const

inline

Check if this is a valid Graphics object.

Returns: Status True if object is valid, false otherwise.

int OpenCMISS::Zinc::Graphics::setCoordinateField ( const Field & coordinateField )

inline

Sets the field supplying coordinates for the graphics. Non rectangular- Cartesian coordinates are automatically converted to RC for the graphics.

Parameters

coordinateField The field to use as the coordinate field. May have from 1 to 3 components.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setDataField ( const Field & dataField )

inline

Sets the data field used with the spectrum to colour the graphics.

Parameters

dataField The field to use as the data field.

Returns: Status OpenCMISS::Zinc::OK on success, any other value on failure.

int OpenCMISS::Zinc::Graphics::setExterior ( bool exterior )

inline

Sets flag to generate graphics for exterior faces or lines only.

Parameters

exterior New boolean value: true to set, false to clear.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setMaterial ( const Material & material )

inline

Sets the material giving the colour/shading of the graphics when unselected.

Parameters

material The standard/unselected material.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setName ( const char * name )

inline

Sets the name of the graphics. Unlike other containers, scene can contain multiple graphics with the same name. New graphics default to having no name. A common use of the name is to mark the graphics for filtering, like metadata.

See Also: Scenefiltermodule::createScenefilterGraphicsName

Parameters

name	The new name for the graphics, OR NULL to clear.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setRenderLineWidth ( double width )

inline

Set the width used for rendering line primitives in GL in renderer 'point units', typically pixels for on-screen display but scalable to ensure lines are of appropriate thickness on high resolution output. Note there may be arbitrary limits on values depending on the GL implementation, and for non-antialised rendering the nearest integer is used. The default value is 1.0.

Parameters

width The line render width in pixels. Value > 0.0.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setRenderPointSize ( double size )

inline

Set the size used for rendering point primitives in GL in renderer 'point units', typically pixels for on-screen display but scalable to ensure points are of appropriate size on high resolution output. Note there may be arbitrary limits on values depending on the GL implementation, and may be rounded to the nearest integer in use. The default value is 1.0.

Parameters

size	The point render size in pixels. Value > 0.0.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setRenderPolygonMode ( RenderPolygonMode renderPolygonMode )

inline

Set mode controlling how polygons in the graphics are rendered in GL: shaded/filled, wireframe etc.

See Also: Graphics::RenderPolygonMode

Parameters

renderPolygonMode Mode of polygon rendering: shaded, wireframe.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setScenecoordinatesystem ( Scenecoordinatesystem coordinateSystem )

inline

Set the scene coordinate system in which to render the coordinates of graphics.

Parameters

coordinateSystem enumerator describing coordinate system to be set for graphics.

Returns: Status OpenCMISS::Zinc::OK on success, any other value on failure.

int OpenCMISS::Zinc::Graphics::setSelectedMaterial ( const Material & material )

inline

Set the material giving the colour/shading of the graphics when selected.

Parameters

material The selected/highlight material.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setSelectMode ( SelectMode selectMode )

inline

Sets the mode controlling how graphics are drawn depending on whether the underlying object is selected, and also whether picking is enabled. An object is selected if it is in the current selection_group for the scene which owns the graphics. The default select mode for new graphics is CMZN_GRAPHICS_SELECT_MODE_ON.

Parameters

selectMode A valid select mode for the graphics.

Returns: On success OpenCMISS::Zinc::OK, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setSpectrum ( const Spectrum & spectrum )

inline

Sets the spectrum used with the data field to colour the graphics.

Parameters

spectrum The spectrum to use to map colours.

Returns: Status OpenCMISS::Zinc::OK on success, any other value on failure.

int OpenCMISS::Zinc::Graphics::setSubgroupField ( const Field & subgroupField )

inline

Sets optional field which causes graphics to be generated only for parts of the domain where its value is true/non-zero. Commonly a group, node_group or element_group field which is efficiently iterated over. Note general fields are evaluated at an arbitrary location in elements.

Parameters

subgroupField Scalar subgroup field.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setTessellation ( const Tessellation & tessellation )

inline

Sets the tessellation object of the graphics.

Parameters

tessellation The tessellation object to be set for graphics.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setTessellationField ( const Field & tessellationField )

inline

Sets a field which sets tessellation quality to match its native refinement in any element (if any) and also apply refinement factors if the field function is non-linear at its native refinement. If no tessellation field is supplied, the coordinate field is checked for non-linearity of function OR coordinate system, but not native refinement.

Parameters

tessellationField The field which sets tessellation quality.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setTextureCoordinateField ( const Field & textureCoordinateField )

inline

Set the texture coordinate field of the graphics. Values of this field specify mapping of the material's image field to coordinates in the graphics. The texture coordinate field is currently unused by POINTS and STREAMLINES.

Parameters

textureCoordinateField The field to be set as the texture coordinate field, or 0 for none. Field must have from 1 to 3 components.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

int OpenCMISS::Zinc::Graphics::setVisibilityFlag ( bool visibilityFlag )

inline

Sets status of graphics visibility flag attribute. Note this only affects visibility of graphics when a scene filter is acting on it.

Parameters

visibilityFlag Boolean true to set, false to clear.

Returns: Status OpenCMISS::Zinc::OK on success, otherwise OpenCMISS::Zinc::ERROR_ARGUMENT.

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

cpp/graphics.hpp
cpp/scene.hpp

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Member Function Documentation