Mark
Defined in: packages/core/src/types.ts:88
A mark: what to draw for one item (or several, above the cap), with no position yet.
Extended by
Section titled “Extended by”Properties
Section titled “Properties”categories
Section titled “categories”categories:
Readonly<Record<string,string>>
Defined in: packages/core/src/types.ts:97
The mark’s category in every encoded dimension, keyed by dimension id; an unknown value is
UNKNOWN_CATEGORY_ID. The arranging category is categories[profile.encoding.arrange].
color:
string
Defined in: packages/core/src/types.ts:101
From the colour dimension; currentColor when nothing drives colour.
id:
string
Defined in: packages/core/src/types.ts:90
The item id, or a combination key and index when the mark stands for several items.
itemIds
Section titled “itemIds”itemIds: readonly
string[]
Defined in: packages/core/src/types.ts:92
The items this mark stands for: one, unless the dataset exceeded maxMarks.
lightness
Section titled “lightness”lightness:
number|null
Defined in: packages/core/src/types.ts:109
0 (faintest) to 1 (full strength) along an ordered dimension; null when unknown or not encoded.
shape:
number|null
Defined in: packages/core/src/types.ts:107
The mark’s shape: the index of its category in the shape dimension (0, 1, 2, …). 0 also when
nothing drives shape, so a plain mark is the first shape; null when its shape category is
unknown.
weight
Section titled “weight”weight:
number
Defined in: packages/core/src/types.ts:99
The summed weight of itemIds. Views make mark area proportional to it.