我在哪里可以找到spatstat中类对象的定义

Question

我想知道类Spatialpolygons的对象与类Polygons的对象有什么样的信息。

Answer 1

如果您Polygon或SpatialPolygons打开帮助页面（其实并不重要，它会引导你到相同的页面），您可以点击SpatialPolygons-class和Polygons-class链接。在那里，你可以看到每个类包含哪些插槽。

Polygon-class为例：

Slots 

ringDir: 
    Object of class "integer"; the ring direction of the ring (polygon) coordinates, holes are expected to be anti-clockwise 
labpt: 
    Object of class "numeric"; an x, y coordinate pair forming the label point of the polygon 
area: 
    Object of class "numeric"; the area of the polygon 
hole: 
    Object of class "logical"; does the polygon seem to be a hole 
coords: 
    Object of class "matrix"; coordinates of the polygon; first point should equal the last point