SliderTable¶
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class
SliderTable
¶ Bases:
TypedWritableReferenceCount
Stores the total set of
VertexSliders
that the vertices in a particularGeomVertexData
object might depend on.This is similar to a
TransformTable
, but it storesVertexSliders
instead ofVertexTransforms
, and it stores them by name instead of by index number. Also, it is only used when animating vertices on the CPU, since GPU’s don’t support morphs at this point in time.Inheritance diagram
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SliderTable
(void)¶
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SliderTable
(SliderTable const ©)¶
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std::size_t
add_slider
(VertexSlider const *slider, SparseArray const &rows)¶ Adds a new slider to the table, and returns the index number of the new slider. Only valid for unregistered tables.
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SparseArray const &
find_sliders
(InternalName const *name) const¶ Returns a list of slider indices that represent the list of sliders with the indicated name, or an empty
SparseArray
if no slider in the table has that name.
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static TypeHandle
get_class_type
(void)¶
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UpdateSeq
get_modified
(Thread *current_thread = Thread::get_current_thread()) const¶ Returns a sequence number that’s guaranteed to change at least when any
VertexSliders
in the table change. (However, this is only true for a registered table. An unregistered table may or may not reflect an update here when aVertexSlider
changes.)
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std::size_t
get_num_sliders
(void) const¶ Returns the number of sliders in the table.
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VertexSlider const *
get_slider
(std::size_t n) const¶ Returns the nth slider in the table.
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SparseArray const &
get_slider_rows
(std::size_t n) const¶ Returns the set of rows (vertices) governed by the nth slider in the table.
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bool
has_slider
(InternalName const *name) const¶ Returns true if the table has at least one slider by the indicated name, false otherwise.
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bool
is_empty
(void) const¶ Returns true if the table has no sliders, false if it has at least one.
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bool
is_registered
(void) const¶ Returns true if this table has been registered. Once it has been registered, the set of sliders in a
SliderTable
may not be further modified; but it must be registered before it can be assigned to a Geom.
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ConstPointerTo<SliderTable>
register_table
(SliderTable const *table)¶ Registers a
SliderTable
for use. This is similar toGeomVertexFormat::register_format()
. Once registered, aSliderTable
may no longer be modified (although the individualVertexSlider
objects may modify their reported sliders).This must be called before a table may be used in a Geom. After this call, you should discard the original pointer you passed in (which may or may not now be invalid) and let its reference count decrement normally; you should use only the returned value from this point on.
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void
remove_slider
(std::size_t n)¶ Removes the nth slider. Only valid for unregistered tables.
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void
set_slider
(std::size_t n, VertexSlider const *slider)¶ Replaces the nth slider. Only valid for unregistered tables.
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void
set_slider_rows
(std::size_t n, SparseArray const &rows)¶ Replaces the rows affected by the nth slider. Only valid for unregistered tables.
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void
write
(std::ostream &out) const¶
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