calloutSpaces関数
リファレンスの説明と例は英語です。見出しと目次は日本語です。
Every place in the frame where a circle fits clear of the land and of the credit's corner, on a grid fine enough to find the water beside a coast.
A frame with no room at all - a map zoomed until the land fills it - gets the grid unfiltered rather than nothing, because a number on land is still better than a number that is not drawn.
インポート
import { calloutSpaces } from "@johnmorrisdotca/chizu";定義
function calloutSpaces(radius: number, box: MapBox, keepOut: CalloutKeepOut, land: readonly CalloutLand[]): CalloutPlace[]引数
| 名前 | 型 | 説明 |
|---|---|---|
radius | number | The circle or label radius in native map units. |
box | MapBox | The window in native map units, or the inset destination specified by this signature. |
keepOut | CalloutKeepOut | The native frame areas reserved against callout placement. |
land | readonly CalloutLand[] | Native land geometry or land obstacles that labels must avoid. |
戻り値
CalloutPlace[]
Every place in the frame where a circle fits clear of the land and of the credit's corner, on a grid fine enough to find the water beside a coast.
例
import { calloutSpaces } from "@johnmorrisdotca/chizu";
// An empty sea 100 across: every place on the grid is open water.
console.log(calloutSpaces(4, { x: 0, y: 0, width: 100, height: 100 }, { bottom: 0, right: 0 }, []).length > 20);
// truetrue出力（このページを作ったときに実行した結果）
この日本語は、まだ日本語を母語とする方の確認を受けていません。訂正を歓迎します。