Displaying 3 results from an estimated 3 matches for "spatstas".
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spatstat
2017 Jun 01
3
[spatstat] Convert shapefile to pixel image
..., polygon by polygon, but then I cannot merge the resulting images into a single one. Any idea?
Second:
I would also need a single window containing all the smallest polygons (the boundary). I have tried:
w <- union.owin(z)
But the resulting window w still shows internal polygons. As read in spatstas FAQ page:
"First, convert each of the regions into a separate owin object. Then apply union.owin to combine them."
So I try,
regions <- slot(y, "polygons")
regions <- lapply(regions, function(x) { SpatialPolygons(list(x)) })
windows <- lapply(regions, as.owin)
But...
2017 Jun 01
0
[spatstat] Convert shapefile to pixel image
...merge the resulting images into a single one. Any idea?
>
> Second:
>
> I would also need a single window containing all the smallest polygons (the boundary). I have tried:
>
> w <- union.owin(z)
>
> But the resulting window w still shows internal polygons. As read in spatstas FAQ page:
>
> "First, convert each of the regions into a separate owin object. Then apply union.owin to combine them."
>
> So I try,
>
> regions <- slot(y, "polygons")
> regions <- lapply(regions, function(x) { SpatialPolygons(list(x)) })
> windo...
2017 Jun 01
0
[spatstat] Convert shapefile to pixel image
..., polygon by polygon, but then I cannot merge the resulting images into a single one. Any idea?
Second:
I would also need a single window containing all the smallest polygons (the boundary). I have tried:
w <- union.owin(z)
But the resulting window w still shows internal polygons. As read in spatstas FAQ page:
"First, convert each of the regions into a separate owin object. Then apply union.owin to combine them."
So I try,
regions <- slot(y, "polygons")
regions <- lapply(regions, function(x) { SpatialPolygons(list(x)) })
windows <- lapply(regions, as.owin)
But...