Struct MatrixPlacement 

pub struct MatrixPlacement {
    pub measure: MeasureId,
    pub axis_order: Vec<CategoryId>,
    pub n_rows: usize,
    pub n_cols: usize,
    pub page_items: Vec<(CategoryId, ItemId)>,
    pub filters: Vec<Filter>,
    pub rect: CanvasRect,
}

One matrix on a view’s canvas: a measure, that matrix’s own pivot layout, and where it sits (rect). A view holds several of these — Quantrix’s free-form canvas, where each matrix is independently pivoted (see docs/reviews/2026-09-22-gui-reconstruction-plan.md Step 3).

Fields

measure: MeasureId

axis_order: Vec<CategoryId>

This matrix’s axis permutation; see View::axis_order.

n_rows: usize

Categories stacked on this matrix’s row axis.

n_cols: usize

Categories stacked on this matrix’s column axis.

page_items: Vec<(CategoryId, ItemId)>

Pinned page items for this matrix.

filters: Vec<Filter>

This matrix’s own filters.

rect: CanvasRect

Canvas geometry.

Implementations

impl MatrixPlacement

pub fn new(measure: MeasureId) -> Self

A placement of measure with default layout and geometry.

pub fn allows(&self, category: CategoryId, item: ItemId) -> bool

Does item in category pass THIS matrix’s filters? Categories without a filter always pass. Same rule as View::allows, applied per matrix.

Trait Implementations

impl Clone for MatrixPlacement

fn clone(&self) -> MatrixPlacement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MatrixPlacement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MatrixPlacement

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for MatrixPlacement

fn eq(&self, other: &MatrixPlacement) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for MatrixPlacement

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MatrixPlacement