Struct ImageData 

pub struct ImageData { /* private fields */ }

Regular grid with implicit point coordinates computed from extent, spacing, and origin.

Analogous to VTK’s vtkImageData. Points are not stored explicitly — their coordinates are computed as: point(i,j,k) = origin + spacing * [i, j, k].

The extent is [x_min, x_max, y_min, y_max, z_min, z_max] in index space.

Examples

use crate::data::ImageData;

// Create a 10x10x10 grid
let img = ImageData::with_dimensions(10, 10, 10);
assert_eq!(img.dimensions(), [10, 10, 10]);

Implementations

impl ImageData

pub fn new() -> Self

pub fn with_dimensions(nx: usize, ny: usize, nz: usize) -> Self

Create an ImageData with given dimensions (number of points in each direction).

pub fn extent(&self) -> [i64; 6]

pub fn set_extent(&mut self, extent: [i64; 6])

pub fn spacing(&self) -> [f64; 3]

pub fn set_spacing(&mut self, spacing: [f64; 3])

pub fn origin(&self) -> [f64; 3]

pub fn set_origin(&mut self, origin: [f64; 3])

pub fn dimensions(&self) -> [usize; 3]

Number of points in each dimension.

pub fn point_from_ijk(&self, i: usize, j: usize, k: usize) -> [f64; 3]

Compute the world-space position of a point given its (i, j, k) index.

pub fn ijk_from_index(&self, idx: usize) -> (usize, usize, usize)

Convert a flat point index to (i, j, k).

pub fn point_at(&self, idx: usize) -> [f64; 3]

Get point coordinates by flat index (equivalent to point_from_ijk(ijk_from_index(idx))).

pub fn index_from_ijk(&self, i: usize, j: usize, k: usize) -> usize

Convert (i, j, k) to a flat point index.

pub fn scalar_at(&self, i: usize, j: usize, k: usize) -> Option<f64>

Get the active scalar value at grid position (i, j, k).

Returns None if no active scalars are set.

pub fn point_positions(&self) -> Vec<[f64; 3]>

Iterate over all point coordinates in index order.

pub fn num_points(&self) -> usize

Number of points.

pub fn point_data(&self) -> &DataSetAttributes

pub fn point_data_mut(&mut self) -> &mut DataSetAttributes

pub fn cell_data(&self) -> &DataSetAttributes

pub fn cell_data_mut(&mut self) -> &mut DataSetAttributes

pub fn with_spacing(self, spacing: [f64; 3]) -> Self

Builder: set spacing.

pub fn with_origin(self, origin: [f64; 3]) -> Self

Builder: set origin.

pub fn from_function( dims: [usize; 3], spacing: [f64; 3], origin: [f64; 3], name: &str, f: impl Fn(f64, f64, f64) -> f64, ) -> Self

Create an ImageData with a scalar field generated from a function.

The function receives (x, y, z) world coordinates and returns a scalar value. The result is stored as point data with the given name.

Examples

use crate::data::ImageData;

// Create a sphere distance field
let img = ImageData::from_function(
    [10, 10, 10], [0.1, 0.1, 0.1], [-0.5, -0.5, -0.5],
    "distance",
    |x, y, z| (x*x + y*y + z*z).sqrt(),
);
assert_eq!(img.dimensions(), [10, 10, 10]);

pub fn with_point_array(self, array: AnyDataArray) -> Self

Builder: add a point data array.

Trait Implementations

impl Clone for ImageData

fn clone(&self) -> ImageData

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl DataObject for ImageData

fn field_data(&self) -> &FieldData

fn field_data_mut(&mut self) -> &mut FieldData

impl DataSet for ImageData

fn num_points(&self) -> usize

fn num_cells(&self) -> usize

fn point(&self, idx: usize) -> [f64; 3]

fn bounds(&self) -> BoundingBox

fn point_data(&self) -> &DataSetAttributes

fn point_data_mut(&mut self) -> &mut DataSetAttributes

fn cell_data(&self) -> &DataSetAttributes

fn cell_data_mut(&mut self) -> &mut DataSetAttributes

fn center(&self) -> [f64; 3]

Center of the bounding box.

fn diagonal(&self) -> f64

Diagonal length of the bounding box.

fn is_empty(&self) -> bool

Whether the dataset has no points.

fn num_point_arrays(&self) -> usize

Number of point data arrays.

fn num_cell_arrays(&self) -> usize

Number of cell data arrays.

impl Debug for ImageData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ImageData

fn default() -> Self

Returns the “default value” for a type.

impl Display for ImageData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<ImageData> for AnyDataSet

fn from(d: ImageData) -> Self

Converts to this type from the input type.

impl From<ImageData> for Block

fn from(id: ImageData) -> Self

Converts to this type from the input type.