This class draws a visible representation of the NURBS curve stored in its NurbsCurveEvaluator. More...

#include "ropeNode.h"

Inheritance diagram for RopeNode:

Public Types
enum	NormalMode { NM_none, NM_vertex }

enum	RenderMode { RM_thread, RM_tape, RM_billboard, RM_tube }

enum	UVMode { UV_none, UV_parametric, UV_distance, UV_distance2 }

Public Types inherited from PandaNode
enum	FancyBits { FB_transform = 0x0001, FB_state = 0x0002, FB_effects = 0x0004, FB_tag = 0x0010, FB_draw_mask = 0x0020, FB_cull_callback = 0x0040 }

typedef bool	SceneRootFunc(const PandaNode *)

enum	UnexpectedChange { UC_parents = 0x001, UC_children = 0x002, UC_transform = 0x004, UC_state = 0x008, UC_draw_mask = 0x010 }

Public Member Functions
	RopeNode (const std::string &name)

void	clear_matrix ()

virtual bool	cull_callback (CullTraverser *trav, CullTraverserData &data)
	This function will be called during the cull traversal to perform any additional operations that should be performed at cull time. More...

virtual TypeHandle	force_init_type ()

NurbsCurveEvaluator *	get_curve () const

const LMatrix4 &	get_matrix () const

NormalMode	get_normal_mode () const

int	get_num_slices () const

int	get_num_subdiv () const

RenderMode	get_render_mode () const

PN_stdfloat	get_thickness () const

const LVector3 &	get_tube_up () const

virtual TypeHandle	get_type () const

bool	get_use_vertex_color () const

bool	get_use_vertex_thickness () const

bool	get_uv_direction () const

UVMode	get_uv_mode () const

PN_stdfloat	get_uv_scale () const

bool	has_matrix () const

virtual bool	is_renderable () const
	Returns true if there is some value to visiting this particular node during the cull traversal for any camera, false otherwise. More...

virtual PandaNode *	make_copy () const
	Returns a newly-allocated Node that is a shallow copy of this one. More...

virtual void	output (std::ostream &out) const

void	reset_bound (const NodePath &rel_to)
	Recomputes the bounding volume. More...

virtual bool	safe_to_transform () const
	Returns true if it is generally safe to transform this particular kind of Node by calling the xform() method, false otherwise. More...

void	set_curve (NurbsCurveEvaluator *curve)

void	set_matrix (const LMatrix4 &matrix)

void	set_normal_mode (NormalMode normal_mode)

void	set_num_slices (int num_slices)

void	set_num_subdiv (int num_subdiv)

void	set_render_mode (RenderMode render_mode)

void	set_thickness (PN_stdfloat thickness)

void	set_tube_up (const LVector3 &tube_up)

void	set_use_vertex_color (bool flag)

void	set_use_vertex_thickness (bool flag)

void	set_uv_direction (bool u_dominant)

void	set_uv_mode (UVMode uv_mode)

void	set_uv_scale (PN_stdfloat scale)

virtual void	write (std::ostream &out, int indent_level=0) const

virtual void	write_datagram (BamWriter *manager, Datagram &dg)
	Writes the contents of this object to the datagram for shipping out to a Bam file. More...

Public Member Functions inherited from PandaNode
	PandaNode (const std::string &name)

void	add_child (PandaNode child_node, int sort=0, Thread current_thread=Thread::get_current_thread())

virtual void	add_for_draw (CullTraverser *trav, CullTraverserData &data)
	Adds the node's contents to the CullResult we are building up during the cull traversal, so that it will be drawn at render time. More...

void	add_stashed (PandaNode child_node, int sort=0, Thread current_thread=Thread::get_current_thread())
	Adds a new child to the node, directly as a stashed child. More...

void	adjust_draw_mask (DrawMask show_mask, DrawMask hide_mask, DrawMask clear_mask)
	Adjusts the hide/show bits of this particular node. More...

virtual void	apply_attribs_to_vertices (const AccumulatedAttribs &attribs, int attrib_types, GeomTransformer &transformer)
	Applies whatever attributes are specified in the AccumulatedAttribs object (and by the attrib_types bitmask) to the vertices on this node, if appropriate. More...

virtual Light *	as_light ()
	Cross-casts the node to a Light pointer, if it is one of the four kinds of Light nodes, or returns NULL if it is not. More...

void	clear_attrib (TypeHandle type)

void	clear_attrib (int slot)
	Removes the render attribute of the given type from this node. More...

void	clear_bounds ()
	Reverses the effect of a previous call to set_bounds(), and allows the node's bounding volume to be automatically computed once more based on the contents of the node. More...

void	clear_effect (TypeHandle type)
	Removes the render effect of the given type from this node. More...

void	clear_effects (Thread *current_thread=Thread::get_current_thread())

void	clear_state (Thread *current_thread=Thread::get_current_thread())

void	clear_tag (const std::string &key, Thread *current_thread=Thread::get_current_thread())

void	clear_transform (Thread *current_thread=Thread::get_current_thread())

void	clear_unexpected_change (unsigned int flags)
	Sets one or more of the PandaNode::UnexpectedChange bits off, indicating that the corresponding property may once again change on this node. More...

virtual PandaNode *	combine_with (PandaNode *other)
	Collapses this PandaNode with the other PandaNode, if possible, and returns a pointer to the combined PandaNode, or NULL if the two PandaNodes cannot safely be combined. More...

int	compare_tags (const PandaNode *other) const
	Returns a number less than 0, 0, or greater than 0, to indicate the similarity of tags between this node and the other one. More...

void	copy_all_properties (PandaNode *other)
	Copies the TransformState, RenderState, RenderEffects, tags, Python tags, and the show/hide state from the other node onto this one. More...

void	copy_children (PandaNode other, Thread current_thread=Thread::get_current_thread())
	Makes another instance of all the children of the other node, copying them to this node. More...

void	copy_tags (PandaNode *other)
	Copies all of the tags stored on the other node onto this node. More...

int	count_num_descendants () const

virtual	CPT (TransformState) calc_tight_bounds(LPoint3 &min_point

	CPT (RenderAttrib) get_attrib(TypeHandle type) const

	CPT (RenderAttrib) get_attrib(int slot) const

	CPT (RenderEffect) get_effect(TypeHandle type) const

	CPT (RenderState) get_state(Thread *current_thread

	CPT (RenderEffects) get_effects(Thread *current_thread

	CPT (TransformState) get_transform(Thread *current_thread

	CPT (TransformState) get_prev_transform(Thread *current_thread

	CPT (RenderAttrib) get_off_clip_planes(Thread *current_thread

	CPT (BoundingVolume) get_bounds(Thread *current_thread

	CPT (BoundingVolume) get_bounds(UpdateSeq &seq

	CPT (BoundingVolume) get_internal_bounds(Thread *current_thread

virtual PandaNode *	dupe_for_flatten () const
	This is similar to make_copy(), but it makes a copy for the specific purpose of flatten. More...

int	find_child (PandaNode node, Thread current_thread=Thread::get_current_thread()) const
	Returns the index of the indicated child node, if it is a child, or -1 if it is not. More...

int	find_parent (PandaNode node, Thread current_thread=Thread::get_current_thread()) const
	Returns the index of the indicated parent node, if it is a parent, or -1 if it is not. More...

int	find_stashed (PandaNode node, Thread current_thread=Thread::get_current_thread()) const
	Returns the index of the indicated stashed node, if it is a stashed child, or -1 if it is not. More...

BoundingVolume::BoundsType	get_bounds_type () const

PandaNode *	get_child (int n, Thread *current_thread=Thread::get_current_thread()) const

int	get_child_sort (int n, Thread *current_thread=Thread::get_current_thread()) const
	Returns the sort index of the nth child node of this node (that is, the number that was passed to add_child()). More...

Children	get_children (Thread *current_thread=Thread::get_current_thread()) const

DrawMask	get_draw_control_mask () const

DrawMask	get_draw_show_mask () const

int	get_fancy_bits (Thread *current_thread=Thread::get_current_thread()) const
	Returns the union of all of the enum FancyBits values corresponding to the various "fancy" attributes that are set on the node. More...

virtual int	get_first_visible_child () const
	Returns the index number of the first visible child of this node, or a number >= get_num_children() if there are no visible children of this node. More...

int	get_internal_vertices (Thread *current_thread=Thread::get_current_thread()) const

CollideMask	get_into_collide_mask () const

virtual CollideMask	get_legal_collide_mask () const

int	get_nested_vertices (Thread *current_thread=Thread::get_current_thread()) const

CollideMask	get_net_collide_mask (Thread *current_thread=Thread::get_current_thread()) const
	Returns the union of all into_collide_mask() values set at CollisionNodes at this level and below. More...

DrawMask	get_net_draw_control_mask () const
	Returns the set of bits in get_net_draw_show_mask() that have been explicitly set via adjust_draw_mask(), rather than implicitly inherited. More...

DrawMask	get_net_draw_show_mask () const
	Returns the union of all draw_show_mask values–of renderable nodes only– at this level and below. More...

virtual int	get_next_visible_child (int n) const
	Returns the index number of the next visible child of this node following the indicated child, or a number >= get_num_children() if there are no more visible children of this node. More...

int	get_num_children (Thread *current_thread=Thread::get_current_thread()) const

int	get_num_parents (Thread *current_thread=Thread::get_current_thread()) const

int	get_num_stashed (Thread *current_thread=Thread::get_current_thread()) const

size_t	get_num_tags () const

PandaNode *	get_parent (int n, Thread *current_thread=Thread::get_current_thread()) const

Parents	get_parents (Thread *current_thread=Thread::get_current_thread()) const

PandaNode *	get_stashed (int n, Thread *current_thread=Thread::get_current_thread()) const

Stashed	get_stashed (Thread *current_thread=Thread::get_current_thread()) const

int	get_stashed_sort (int n, Thread *current_thread=Thread::get_current_thread()) const
	Returns the sort index of the nth stashed node of this node (that is, the number that was passed to add_child()). More...

std::string	get_tag (const std::string &key, Thread *current_thread=Thread::get_current_thread()) const

std::string	get_tag_key (size_t i) const

void	get_tag_keys (vector_string &keys) const
	Fills the given vector up with the list of tags on this PandaNode. More...

unsigned int	get_unexpected_change (unsigned int flags) const
	Returns nonzero if any of the bits in the input parameter are set on this node, or zero if none of them are set. More...

virtual int	get_unsafe_to_apply_attribs () const
	Returns the union of all attributes from SceneGraphReducer::AttribTypes that may not safely be applied to the vertices of this node. More...

virtual int	get_visible_child () const
	Returns the index number of the currently visible child of this node. More...

bool	has_attrib (TypeHandle type) const

bool	has_attrib (int slot) const

bool	has_dirty_prev_transform () const

bool	has_effect (TypeHandle type) const

virtual bool	has_selective_visibility () const
	Should be overridden by derived classes to return true if this kind of node has some restrictions on the set of children that should be rendered. More...

virtual bool	has_single_child_visibility () const
	Should be overridden by derived classes to return true if this kind of node has the special property that just one of its children is visible at any given time, and furthermore that the particular visible child can be determined without reference to any external information (such as a camera). More...

bool	has_tag (const std::string &key, Thread *current_thread=Thread::get_current_thread()) const

bool	has_tags () const

virtual bool	is_ambient_light () const
	Returns true if this is an AmbientLight, false if it is not a light, or it is some other kind of light. More...

bool	is_bounds_stale () const

virtual bool	is_collision_node () const
	A simple downcast check. More...

bool	is_final (Thread *current_thread=Thread::get_current_thread()) const

virtual bool	is_geom_node () const
	A simple downcast check. More...

virtual bool	is_lod_node () const
	A simple downcast check. More...

bool	is_overall_hidden () const

bool	is_scene_root () const
	Returns true if this particular node is known to be the render root of some active DisplayRegion associated with the global GraphicsEngine, false otherwise. More...

bool	is_under_scene_root () const
	Returns true if this particular node is in a live scene graph: that is, it is a child or descendent of a node that is itself a scene root. More...

void	list_tags (std::ostream &out, const std::string &separator="\n") const
	Writes a list of all the tag keys assigned to the node to the indicated stream. More...

void	ls (std::ostream &out, int indent_level) const

void	mark_bounds_stale (Thread *current_thread=Thread::get_current_thread()) const

void	mark_internal_bounds_stale (Thread *current_thread=Thread::get_current_thread())

void	prepare_scene (GraphicsStateGuardianBase gsg, const RenderState node_state)

virtual bool	preserve_name () const
	Returns true if the node's name has extrinsic meaning and must be preserved across a flatten operation, false otherwise. More...

	PT (PandaNode) copy_subgraph(Thread *current_thread

virtual void	r_prepare_scene (GraphicsStateGuardianBase gsg, const RenderState node_state, GeomTransformer &transformer, Thread *current_thread)
	The recursive implementation of prepare_scene(). More...

void	remove_all_children (Thread *current_thread=Thread::get_current_thread())
	Removes all the children from the node at once, including stashed children. More...

void	remove_child (int child_index, Thread *current_thread=Thread::get_current_thread())
	Removes the nth child from the node. More...

bool	remove_child (PandaNode child_node, Thread current_thread=Thread::get_current_thread())
	Removes the indicated child from the node. More...

void	remove_stashed (int child_index, Thread *current_thread=Thread::get_current_thread())
	Removes the nth stashed child from the node. More...

bool	replace_child (PandaNode orig_child, PandaNode new_child, Thread *current_thread=Thread::get_current_thread())
	Searches for the orig_child node in the node's list of children, and replaces it with the new_child instead. More...

void	replace_node (PandaNode *other)
	Inserts this node into the scene graph in place of the other one, and removes the other node. More...

void	reset_prev_transform (Thread *current_thread=Thread::get_current_thread())
	Resets the transform that represents this node's "previous" position to the same as the current transform. More...

virtual bool	safe_to_combine () const
	Returns true if it is generally safe to combine this particular kind of PandaNode with other kinds of PandaNodes of compatible type, adding children or whatever. More...

virtual bool	safe_to_combine_children () const
	Returns true if it is generally safe to combine the children of this PandaNode with each other. More...

virtual bool	safe_to_flatten () const
	Returns true if it is generally safe to flatten out this particular kind of PandaNode by duplicating instances (by calling dupe_for_flatten()), false otherwise (for instance, a Camera cannot be safely flattened, because the Camera pointer itself is meaningful). More...

virtual bool	safe_to_flatten_below () const
	Returns true if a flatten operation may safely continue past this node, or false if nodes below this node may not be molested. More...

virtual bool	safe_to_modify_transform () const
	Returns true if it is safe to automatically adjust the transform on this kind of node. More...

void	set_attrib (const RenderAttrib *attrib, int override=0)
	Adds the indicated render attribute to the scene graph on this node. More...

void	set_bound (const BoundingVolume *volume)
	Deprecated. More...

void	set_bounds (const BoundingVolume *volume)
	Resets the bounding volume so that it is the indicated volume. More...

void	set_bounds_type (BoundingVolume::BoundsType bounds_type)
	Specifies the desired type of bounding volume that will be created for this node. More...

void	set_effect (const RenderEffect *effect)
	Adds the indicated render effect to the scene graph on this node. More...

void	set_effects (const RenderEffects effects, Thread current_thread=Thread::get_current_thread())

void	set_final (bool flag)

void	set_into_collide_mask (CollideMask mask)

void	set_overall_hidden (bool overall_hidden)

void	set_prev_transform (const TransformState transform, Thread current_thread=Thread::get_current_thread())
	Sets the transform that represents this node's "previous" position, one frame ago, for the purposes of detecting motion for accurate collision calculations. More...

void	set_state (const RenderState state, Thread current_thread=Thread::get_current_thread())

void	set_tag (const std::string &key, const std::string &value, Thread *current_thread=Thread::get_current_thread())

void	set_transform (const TransformState transform, Thread current_thread=Thread::get_current_thread())

void	set_unexpected_change (unsigned int flags)
	Sets one or more of the PandaNode::UnexpectedChange bits on, indicating that the corresponding property should not change again on this node. More...

bool	stash_child (PandaNode child_node, Thread current_thread=Thread::get_current_thread())
	Stashes the indicated child node. More...

void	stash_child (int child_index, Thread *current_thread=Thread::get_current_thread())
	Stashes the indicated child node. More...

void	steal_children (PandaNode other, Thread current_thread=Thread::get_current_thread())
	Moves all the children from the other node onto this node. More...

bool	unstash_child (PandaNode child_node, Thread current_thread=Thread::get_current_thread())
	Returns the indicated stashed node to normal child status. More...

void	unstash_child (int stashed_index, Thread *current_thread=Thread::get_current_thread())
	Returns the indicated stashed node to normal child status. More...

virtual void	update_bam_nested (BamWriter *manager)
	Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. More...

void	write_recorder (BamWriter *manager, Datagram &dg)
	This method is provided for the benefit of classes (like MouseRecorder) that inherit from PandaMode and also RecorderBase. More...

virtual void	xform (const LMatrix4 &mat)
	Transforms the contents of this PandaNode by the indicated matrix, if it means anything to do so. More...

Public Member Functions inherited from TypedWritableReferenceCount
	TypedWritableReferenceCount (const TypedWritableReferenceCount &copy)

virtual ReferenceCount *	as_reference_count ()
	Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More...

void	operator= (const TypedWritableReferenceCount &copy)

Public Member Functions inherited from TypedWritable
	TypedWritable (const TypedWritable &copy)

virtual int	complete_pointers (TypedWritable *p_list, BamReader manager)
	Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More...

vector_uchar	encode_to_bam_stream () const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More...

bool	encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More...

virtual void	finalize (BamReader *manager)
	Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More...

UpdateSeq	get_bam_modified () const
	Returns the current bam_modified counter. More...

void	mark_bam_modified ()
	Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More...

void	operator= (const TypedWritable &copy)

virtual bool	require_fully_complete () const
	Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More...

Public Member Functions inherited from TypedObject
	TypedObject (const TypedObject &copy)=default

TypedObject *	as_typed_object ()
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

const TypedObject *	as_typed_object () const
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

int	get_best_parent_from_Set (const std::set< int > &) const

int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...

bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly. More...

bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type. More...

TypedObject &	operator= (const TypedObject &copy)=default

Public Member Functions inherited from ReferenceCount
int	get_ref_count () const

WeakReferenceList *	get_weak_list () const
	Returns the WeakReferenceList associated with this ReferenceCount object. More...

bool	has_weak_list () const
	Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...

void	local_object ()
	This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...

void	ref () const
	Explicitly increments the reference count. More...

bool	ref_if_nonzero () const
	Atomically increases the reference count of this object if it is not zero. More...

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

bool	test_ref_count_nonzero () const
	Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...

virtual bool	unref () const
	Explicitly decrements the reference count. More...

WeakReferenceList *	weak_ref ()
	Adds the indicated PointerToVoid as a weak reference to this object. More...

void	weak_unref ()
	Removes the indicated PointerToVoid as a weak reference to this object. More...

Public Member Functions inherited from Namable
	Namable (const std::string &initial_name="")

void	clear_name ()
	Resets the Namable's name to empty. More...

const std::string &	get_name () const

bool	has_name () const
	Returns true if the Namable has a nonempty name set, false if the name is empty. More...

void	output (std::ostream &out) const
	Outputs the Namable. More...

void	set_name (const std::string &name)

Static Public Member Functions
static TypeHandle	get_class_type ()

static int	get_vertex_color_dimension ()

static int	get_vertex_thickness_dimension ()

static void	init_type ()

static void	register_with_read_factory ()
	Tells the BamReader how to create objects of type RopeNode. More...

Static Public Member Functions inherited from PandaNode
static DrawMask	get_all_camera_mask ()

static TypeHandle	get_class_type ()

static DrawMask	get_overall_bit ()

static void	init_type ()

static	PT (PandaNode) decode_from_bam_stream(vector_uchar data

static void	register_with_read_factory ()
	Tells the BamReader how to create objects of type PandaNode. More...

static void	reset_all_prev_transform (Thread *current_thread=Thread::get_current_thread())
	Visits all nodes in the world with the _dirty_prev_transform flag–that is, all nodes whose _prev_transform is different from the _transform in pipeline stage 0–and resets the _prev_transform to be the same as _transform. More...

static void	set_scene_root_func (SceneRootFunc *func)
	This is used by the GraphicsEngine to hook in a pointer to the scene_root_func(), the function to determine whether the node is an active scene root. More...

Static Public Member Functions inherited from TypedWritableReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

static	PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data

Static Public Member Functions inherited from TypedWritable
static bool	decode_raw_from_bam_stream (TypedWritable &ptr, ReferenceCount &ref_ptr, vector_uchar data, BamReader *reader=nullptr)
	Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More...

static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedObject
static TypeHandle	get_class_type ()

static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96. More...

Static Public Member Functions inherited from ReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from Namable
static TypeHandle	get_class_type ()

static void	init_type ()

Public Attributes
	clear_matrix
	Resets the node's matrix to identity. More...

	get_curve
	Returns the curve represented by the RopeNode. More...

	get_matrix
	Returns the optional matrix which is used to transform each control vertex after it has been transformed into the RopeNode's coordinate space, but before the polygon vertices are generated. More...

	get_normal_mode
	Returns the kind of normals to generate for the rope. More...

	get_num_slices
	Returns the number of radial subdivisions to make if RenderMode is RM_tube. More...

	get_num_subdiv
	Returns the number of subdivisions per cubic segment to draw. More...

	get_render_mode
	Returns the method used to render the rope. More...

	get_thickness
	Returns the thickness of the rope. More...

	get_tube_up
	Returns the normal vector used to control the "top" of the curve, when RenderMode is RM_tube. More...

	get_use_vertex_color
	Returns the "use vertex color" flag. More...

	get_use_vertex_thickness
	Returns the "use vertex thickness" flag. More...

	get_uv_direction
	Returns true if the rope runs down the U coordinate of the texture, or false if it runs down the V coordinate. More...

	get_uv_mode
	Returns the algorithm to use to generate UV's for the rope. More...

	get_uv_scale
	Returns the scaling factor to apply to generated UV's for the rope. More...

	get_vertex_color_dimension
	Returns the numeric extended dimension in which the color components should be found. More...

	get_vertex_thickness_dimension
	Returns the numeric extended dimension in which the thickness component should be found. More...

	has_matrix
	Returns true if the node has a matrix set, false otherwise. More...

	set_curve
	Sets the particular curve represented by the RopeNode. More...

	set_matrix
	Specifies an optional matrix which is used to transform each control vertex after it has been transformed into the RopeNode's coordinate space, but before the polygon vertices are generated. More...

	set_normal_mode
	Specifies the kind of normals to generate for the rope. More...

	set_num_slices
	Specifies the number of radial subdivisions to make if RenderMode is RM_tube. More...

	set_num_subdiv
	Specifies the number of subdivisions per cubic segment (that is, per unique knot value) to draw in a fixed uniform tesselation of the curve. More...

	set_render_mode
	Specifies the method used to render the rope. More...

	set_thickness
	Specifies the thickness of the rope, in pixels or in spatial units, depending on the render mode. More...

	set_tube_up
	Specifies a normal vector, generally perpendicular to the main axis of the starting point of the curve, that controls the "top" of the curve, when RenderMode is RM_tube. More...

	set_use_vertex_color
	Sets the "use vertex color" flag. More...

	set_use_vertex_thickness
	Sets the "use vertex thickness" flag. More...

	set_uv_direction
	Specify true to vary the U coordinate down the length of the rope, or false to vary the V coordinate. More...

	set_uv_mode
	Specifies the algorithm to use to generate UV's for the rope. More...

	set_uv_scale
	Specifies an additional scaling factor to apply to generated UV's along the rope. More...

Public Attributes inherited from PandaNode
	clear_tag
	Removes the value defined for this key on this particular node. More...

virtual LPoint3 bool const TransformState Thread *	current_thread = Thread::get_current_thread()) const

Thread *	current_thread = Thread::get_current_thread()) const

virtual LPoint3 bool &	found_any

	get_all_camera_mask
	Returns a DrawMask that is appropriate for rendering to all cameras. More...

	get_bounds_type
	Returns the bounding volume type set with set_bounds_type(). More...

	get_child
	Returns the nth child node of this node. More...

	get_children
	Returns an object that can be used to walk through the list of children of the node. More...

	get_draw_control_mask
	Returns the set of bits in draw_show_mask that are considered meaningful. More...

	get_draw_show_mask
	Returns the hide/show bits of this particular node. More...

	get_effects

	get_internal_bounds

	get_internal_vertices

	get_into_collide_mask
	Returns the "into" collide mask for this node. More...

	get_legal_collide_mask
	Returns the subset of CollideMask bits that may be set for this particular type of PandaNode. More...

	get_nested_vertices

	get_num_children
	Returns the number of child nodes this node has. More...

	get_num_parents
	Returns the number of parent nodes this node has. More...

	get_num_stashed
	Returns the number of stashed nodes this node has. More...

	get_num_tags

	get_overall_bit

	get_parent
	Returns the nth parent node of this node. More...

	get_parents
	Returns an object that can be used to walk through the list of parents of the node, similar to get_children() and get_stashed(). More...

	get_prev_transform

	get_python_tags

	get_stashed
	Returns the nth stashed child of this node. More...

	get_state

	get_tag

	get_tag_key

	get_transform

	has_tag

	is_bounds_stale

	is_final
	Returns the current state of the "final" flag. More...

	is_overall_hidden
	Returns true if the node has been hidden to all cameras by clearing its overall bit. More...

virtual LPoint3 &	max_point

static BamReader *	reader = nullptr)

	set_effects
	Sets the complete RenderEffects that will be applied this node. More...

	set_final

	set_into_collide_mask
	Sets the "into" CollideMask. More...

	set_overall_hidden
	Sets or clears the hidden flag. More...

	set_state
	Sets the complete RenderState that will be applied to all nodes at this level and below. More...

	set_tag
	Associates a user-defined value with a user-defined key which is stored on the node. More...

	set_transform
	Sets the transform that will be applied to this node and below. More...

virtual LPoint3 bool const TransformState *	transform

Public Attributes inherited from TypedWritableReferenceCount
static BamReader *	reader = nullptr)

Public Attributes inherited from TypedObject
	get_type

Public Attributes inherited from ReferenceCount
	get_ref_count
	Returns the current reference count. More...

Public Attributes inherited from Namable
	get_name

	set_name

Additional Inherited Members
Static Public Attributes inherited from TypedWritable
static TypedWritable *const	Null = nullptr

Detailed Description

This class draws a visible representation of the NURBS curve stored in its NurbsCurveEvaluator.

It automatically recomputes the curve every frame.

This is not related to NurbsCurve, CubicCurveseg or any of the ParametricCurve-derived objects in this module. It is a completely parallel implementation of NURBS curves, and will probably eventually replace the whole ParametricCurve class hierarchy.

Definition at line 34 of file ropeNode.h.

Member Function Documentation

◆ cull_callback()

bool RopeNode::cull_callback	(	CullTraverser *	trav,
		CullTraverserData &	data
	)

virtual

This function will be called during the cull traversal to perform any additional operations that should be performed at cull time.

This may include additional manipulation of render state or additional visible/invisible decisions, or any other arbitrary operation.

Note that this function will *not* be called unless set_cull_callback() is called in the constructor of the derived class. It is necessary to call set_cull_callback() to indicated that we require cull_callback() to be called.

By the time this function is called, the node has already passed the bounding-volume test for the viewing frustum, and the node's transform and state have already been applied to the indicated CullTraverserData object.

The return value is true if this node should be visible, or false if it should be culled.

Reimplemented from PandaNode.

Definition at line 125 of file ropeNode.cxx.

◆ is_renderable()

bool RopeNode::is_renderable ( ) const

virtual

Returns true if there is some value to visiting this particular node during the cull traversal for any camera, false otherwise.

This will be used to optimize the result of get_net_draw_show_mask(), so that any subtrees that contain only nodes for which is_renderable() is false need not be visited.

Reimplemented from PandaNode.

Definition at line 172 of file ropeNode.cxx.

◆ make_copy()

PandaNode * RopeNode::make_copy ( ) const

virtual

Returns a newly-allocated Node that is a shallow copy of this one.

It will be a different Node pointer, but its internal data may or may not be shared with that of the original Node.

Reimplemented from PandaNode.

Definition at line 92 of file ropeNode.cxx.

◆ register_with_read_factory()

void RopeNode::register_with_read_factory ( )

static

Tells the BamReader how to create objects of type RopeNode.

Definition at line 871 of file ropeNode.cxx.

References BamReader::get_factory(), and Factory< Type >::register_factory().

◆ reset_bound()

void RopeNode::reset_bound ( const NodePath & rel_to )

Recomputes the bounding volume.

This is normally called automatically, but it must occasionally be called explicitly when the curve has changed properties outside of this node's knowledge.

Definition at line 205 of file ropeNode.cxx.

References Thread::get_pipeline_stage.

◆ safe_to_transform()

bool RopeNode::safe_to_transform ( ) const

virtual

Returns true if it is generally safe to transform this particular kind of Node by calling the xform() method, false otherwise.

For instance, it's usually a bad idea to attempt to xform a RopeNode.

Reimplemented from PandaNode.

Definition at line 102 of file ropeNode.cxx.

◆ write_datagram()

void RopeNode::write_datagram	(	BamWriter *	manager,
		Datagram &	dg
	)

virtual

Writes the contents of this object to the datagram for shipping out to a Bam file.

Reimplemented from PandaNode.

Definition at line 880 of file ropeNode.cxx.

References BamWriter::write_cdata(), and PandaNode::write_datagram().

Member Data Documentation

◆ clear_matrix

void RopeNode::clear_matrix

inline

Resets the node's matrix to identity.

See set_matrix().

Definition at line 154 of file ropeNode.h.

◆ get_curve

NurbsCurveEvaluator * RopeNode::get_curve

inline

Returns the curve represented by the RopeNode.

Definition at line 140 of file ropeNode.h.

◆ get_matrix

const LMatrix4 & RopeNode::get_matrix

inline

Returns the optional matrix which is used to transform each control vertex after it has been transformed into the RopeNode's coordinate space, but before the polygon vertices are generated.

Definition at line 154 of file ropeNode.h.

◆ get_normal_mode

RopeNode::NormalMode RopeNode::get_normal_mode

inline

Returns the kind of normals to generate for the rope.

This is only applicable when the RenderMode is set to RM_tube.

Definition at line 145 of file ropeNode.h.

◆ get_num_slices

int RopeNode::get_num_slices

inline

Returns the number of radial subdivisions to make if RenderMode is RM_tube.

It is ignored in the other render modes. See set_num_slices().

Definition at line 150 of file ropeNode.h.

◆ get_num_subdiv

int RopeNode::get_num_subdiv

inline

Returns the number of subdivisions per cubic segment to draw.

See set_num_subdiv().

Definition at line 149 of file ropeNode.h.

◆ get_render_mode

RopeNode::RenderMode RopeNode::get_render_mode

inline

Returns the method used to render the rope.

See set_render_mode().

Definition at line 141 of file ropeNode.h.

◆ get_thickness

PN_stdfloat RopeNode::get_thickness

inline

Returns the thickness of the rope.

See set_thickness().

Definition at line 153 of file ropeNode.h.

◆ get_tube_up

const LVector3 & RopeNode::get_tube_up

inline

Returns the normal vector used to control the "top" of the curve, when RenderMode is RM_tube.

See set_tube_up().

Definition at line 146 of file ropeNode.h.

◆ get_use_vertex_color

bool RopeNode::get_use_vertex_color

inline

Returns the "use vertex color" flag.

See set_use_vertex_color().

Definition at line 147 of file ropeNode.h.

◆ get_use_vertex_thickness

bool RopeNode::get_use_vertex_thickness

inline

Returns the "use vertex thickness" flag.

See set_use_vertex_thickness().

Definition at line 151 of file ropeNode.h.

◆ get_uv_direction

bool RopeNode::get_uv_direction

inline

Returns true if the rope runs down the U coordinate of the texture, or false if it runs down the V coordinate.

Definition at line 143 of file ropeNode.h.

◆ get_uv_mode

RopeNode::UVMode RopeNode::get_uv_mode

inline

Returns the algorithm to use to generate UV's for the rope.

Definition at line 142 of file ropeNode.h.

◆ get_uv_scale

PN_stdfloat RopeNode::get_uv_scale

inline

Returns the scaling factor to apply to generated UV's for the rope.

Definition at line 144 of file ropeNode.h.

◆ get_vertex_color_dimension

int RopeNode::get_vertex_color_dimension

inline

Returns the numeric extended dimension in which the color components should be found.

See NurbsCurveEvaluator::set_extended_vertex().

The color components will be expected at (n, n + 1, n + 2, n + 3).

Definition at line 148 of file ropeNode.h.

◆ get_vertex_thickness_dimension

int RopeNode::get_vertex_thickness_dimension

inline

Returns the numeric extended dimension in which the thickness component should be found.

See NurbsCurveEvaluator::set_extended_vertex().

Definition at line 152 of file ropeNode.h.

◆ has_matrix

bool RopeNode::has_matrix

inline

Returns true if the node has a matrix set, false otherwise.

See set_matrix().

Definition at line 154 of file ropeNode.h.

◆ set_curve

void RopeNode::set_curve

inline

Sets the particular curve represented by the RopeNode.

Definition at line 140 of file ropeNode.h.

◆ set_matrix

void RopeNode::set_matrix

inline

Specifies an optional matrix which is used to transform each control vertex after it has been transformed into the RopeNode's coordinate space, but before the polygon vertices are generated.

Definition at line 154 of file ropeNode.h.

◆ set_normal_mode

void RopeNode::set_normal_mode

inline

Specifies the kind of normals to generate for the rope.

This is only applicable when the RenderMode is set to RM_tube; in the other render modes, normals are never generated.

Definition at line 145 of file ropeNode.h.

◆ set_num_slices

void RopeNode::set_num_slices

inline

Specifies the number of radial subdivisions to make if RenderMode is RM_tube.

It is ignored in the other render modes.

Increasing this number increases the roundness of a cross-section of the tube. The minimum value for a dimensional tube is 3; setting it to 2 will get you a thin piece of tape (which is similar to RM_billboard, except it won't rotate to face the camera).

Definition at line 150 of file ropeNode.h.

◆ set_num_subdiv

void RopeNode::set_num_subdiv

inline

Specifies the number of subdivisions per cubic segment (that is, per unique knot value) to draw in a fixed uniform tesselation of the curve.

Definition at line 149 of file ropeNode.h.

◆ set_render_mode

void RopeNode::set_render_mode

inline

Specifies the method used to render the rope.

The simplest is RM_thread, which just draws a one-pixel line segment.

Definition at line 141 of file ropeNode.h.

◆ set_thickness

void RopeNode::set_thickness

inline

Specifies the thickness of the rope, in pixels or in spatial units, depending on the render mode.

See set_render_mode().

The thickness may also be specified on a per-vertex basis. See set_use_vertex_thickness().

Definition at line 153 of file ropeNode.h.

◆ set_tube_up

void RopeNode::set_tube_up

inline

Specifies a normal vector, generally perpendicular to the main axis of the starting point of the curve, that controls the "top" of the curve, when RenderMode is RM_tube.

This is used to orient the vertices that make up the tube. If this vector is too nearly parallel with the starting direction of the curve, there may be a tendency for the whole tube to gimble-lock around its primary axis.

Definition at line 146 of file ropeNode.h.

◆ set_use_vertex_color

void RopeNode::set_use_vertex_color

inline

Sets the "use vertex color" flag.

When this is true, the R, G, B, A vertex color is assumed to be stored as the dimensions n + 0, n + 1, n + 2, n + 3, respectively, of the extended vertex values, where n is the value returned by get_vertex_color_dimension(). Use NurbsCurveEvaluator::set_extended_vertex() to set these values.

Definition at line 147 of file ropeNode.h.

◆ set_use_vertex_thickness

void RopeNode::set_use_vertex_thickness

inline

Sets the "use vertex thickness" flag.

When this is true, the vertex thickness is assumed to be stored as the dimension get_vertex_thickness_dimension(), of the extended vertex values. Use NurbsCurveEvaluator::set_extended_vertex() to set these values.

In this mode, the overall thickness is also applied as a scale to the vertex thickness. Not all render modes support vertex thickness.

Definition at line 151 of file ropeNode.h.

◆ set_uv_direction

void RopeNode::set_uv_direction

inline

Specify true to vary the U coordinate down the length of the rope, or false to vary the V coordinate.

Definition at line 143 of file ropeNode.h.

◆ set_uv_mode

void RopeNode::set_uv_mode

inline

Specifies the algorithm to use to generate UV's for the rope.

Definition at line 142 of file ropeNode.h.

◆ set_uv_scale

void RopeNode::set_uv_scale

inline

Specifies an additional scaling factor to apply to generated UV's along the rope.

This scale factor is applied in whichever direction is along the rope, as specified by set_uv_direction().

Definition at line 144 of file ropeNode.h.

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

panda/src/parametrics/ropeNode.h
panda/src/parametrics/ropeNode.cxx
panda/src/parametrics/ropeNode.I

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ cull_callback()

◆ is_renderable()

◆ make_copy()

◆ register_with_read_factory()

◆ reset_bound()

◆ safe_to_transform()

◆ write_datagram()

Member Data Documentation

◆ clear_matrix

◆ get_curve

◆ get_matrix

◆ get_normal_mode

◆ get_num_slices

◆ get_num_subdiv

◆ get_render_mode

◆ get_thickness

◆ get_tube_up

◆ get_use_vertex_color

◆ get_use_vertex_thickness

◆ get_uv_direction

◆ get_uv_mode

◆ get_uv_scale

◆ get_vertex_color_dimension

◆ get_vertex_thickness_dimension

◆ has_matrix

◆ set_curve

◆ set_matrix

◆ set_normal_mode

◆ set_num_slices

◆ set_num_subdiv

◆ set_render_mode

◆ set_thickness

◆ set_tube_up

◆ set_use_vertex_color

◆ set_use_vertex_thickness

◆ set_uv_direction

◆ set_uv_mode

◆ set_uv_scale