Type alias GeoJsonArrowHeadOpenedStyle
GeoJsonArrowHeadOpenedStyle: GeoJsonArrowHeadCommonStyle & {     lineCap?: CanvasLineCap;     lineJoin?: CanvasLineJoin;     type: "arrow-head-opened"; } Type declaration
- OptionallineCap?: CanvasLineCap
- OptionallineJoin?: CanvasLineJoin
- type: "arrow-head-opened"
両サイドの端の処理