Scene Data Components

class yt_idv.scene_data.base_data.SceneData(**kwargs: Any)

Bases: HasTraits

A class that defines a collection of GPU-managed data.

This class contains the largest common set of features that can be used OpenGL rendering: a set of vertices and a set of vertex attributes. Note that this is distinct from the shader, which can be swapped out and provided with these items.

max_val

A casting version of the float trait.

min_val

A casting version of the float trait.

name

A trait for unicode strings.

textures

An instance of a Python list.

property val_range

vertex_array

A trait whose value must be an instance of a specified class.

The value can also be an instance of a subclass of the specified class.

Subclasses can declare default classes by overriding the klass attribute

class yt_idv.scene_data.block_collection.BlockCollection(**kwargs: Any)

Bases: SceneData

add_data(field, no_ghost=False)

Adds a source of data for the block collection.

Given a data_source and a field to populate from, adds the data to the block collection so that is able to be rendered.

Parameters:

• data_source (YTRegion) – A YTRegion object to use as a data source.

• field (string) – A field to populate from.

• no_ghost (bool (False)) – Should we speed things up by skipping ghost zone generation?

always_normalize

A boolean (True, False) trait.

bitmap_objects

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

blocks

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

blocks_by_grid

A trait whose value must be an instance of a specified class.

The value can also be an instance of a subclass of the specified class.

Subclasses can declare default classes by overriding the klass attribute

compute_min_max

A boolean (True, False) trait.

data_source

A trait whose value must be an instance of a specified class.

The value can also be an instance of a subclass of the specified class.

Subclasses can declare default classes by overriding the klass attribute

filter_callback(callback)

property grid_id_list

the 0-indexed grid ids that contain all the blocks

grids_by_block

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

property intersected_grids

name = 'block_collection'

scale

A boolean (True, False) trait.

texture_objects

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

viewpoint_iter(camera)

class yt_idv.scene_data.octree_block_collection.OctreeBlockCollection(**kwargs: Any)

Bases: SceneData

add_data(field)

Adds a source of data for the block collection.

Given a data_source and a field to populate from, adds the data to the block collection so that is able to be rendered.

Parameters:

• data_source (YTRegion) – A YTRegion object to use as a data source.

• field (string) – A field to populate from.

• no_ghost (bool (False)) – Should we speed things up by skipping ghost zone generation?

bitmap_textures

An instance of a Python list.

data_source

A trait whose value must be an instance of a specified class.

The value can also be an instance of a subclass of the specified class.

Subclasses can declare default classes by overriding the klass attribute

data_textures

An instance of a Python list.

name = 'octree_block_collection'

shapes

An instance of a Python list.

class yt_idv.scene_data.box.BoxData(**kwargs: Any)

Bases: SceneData

left_edge

name = 'box_data'

right_edge

class yt_idv.scene_data.line.LineData(**kwargs: Any)

Bases: SceneData

add_data(lines)

n_values

A casting version of the int trait.

name = 'line_data'

class yt_idv.scene_data.mesh.MeshData(**kwargs: Any)

Bases: SceneData

add_data(field)

blocks

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

data_source

A trait whose value must be an instance of a specified class.

The value can also be an instance of a subclass of the specified class.

Subclasses can declare default classes by overriding the klass attribute

get_mesh_data(data_source, field)

This reads the mesh data into a form that can be fed in to OpenGL.

name = 'mesh'

scale

A boolean (True, False) trait.

size

A casting version of the int trait.

texture_objects

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

class yt_idv.scene_data.rgba.RGBAData(**kwargs: Any)

Bases: SceneData

add_data(lines)

colormap_texture

A trait whose value must be an instance of a specified class.

The value can also be an instance of a subclass of the specified class.

Subclasses can declare default classes by overriding the klass attribute

name = 'rgba_data'

class yt_idv.scene_data.text_characters.TextCharacters(**kwargs: Any)

Bases: SceneData

build_textures()

characters

An instance of a Python dict.

One or more traits can be passed to the constructor to validate the keys and/or values of the dict. If you need more detailed validation, you may use a custom validator method.

Changed in version 5.0: Added key_trait for validating dict keys.

Changed in version 5.0: Deprecated ambiguous trait, traits args in favor of value_trait, per_key_traits.

font

font_size

A casting version of the int trait.

name = 'text_overlay'

class yt_idv.scene_data.curve.CurveData(**kwargs: Any)

Bases: SceneData

Data component for a single curve.

add_data(curve)

add curve data

Parameters:

curve (ArrayLike) – an array of shape (N, 3) specifying the position (in x, y, z) of N points.

data

A numpy array trait type.

n_vertices

A casting version of the int trait.

name = 'curve_data'

class yt_idv.scene_data.curve.CurveCollection(**kwargs: Any)

Bases: CurveData

Data component for a collection of curves

add_curve(curve)

add a single curve to the collection

Parameters:

curve (ArrayLike) – an array of shape (N, 3) specifying the position (in x, y, z) of N points.

add_data()

finalize the current collection of curves.

data

A numpy array trait type.

n_vertices

A casting version of the int trait.

name = 'curve_collection'