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Spatial grids over a shapefile or spatialpolygonsdataframe
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I want to create a grid of 4 by 4km and then place it on a shapefile that I converted to a raster. The final product is a plot of my study area and my set of coordinates inside this created grids on the raster layer.
create a grid of 4*4 km on map
Nam <- rgdal::readOGR(dsn = "Province_Data", layer="Namibia")
plot(Nam)
create an empty raster
grid <- raster(extent(Nam))
choose its resolution (4 by4 km)
res(grid) <- 4
give the grid the projections
proj4string(grid) <- proj4string(Nam)
transform this raster into a polygon and there is a grid now
gridpoly <- rasterToPolygons(grid)
this rastertopolygon always gave me error saying r encountered fatal problem and needs to close and r needs to restart
What could the problem be?
raster grids-graticules
edited 3 mins ago
Vince
14.6k32748
asked 10 mins ago
unicornunicorn
65
add a comment |
I want to create a grid of 4 by 4km and then place it on a shapefile that I converted to a raster. The final product is a plot of my study area and my set of coordinates inside this created grids on the raster layer.
create a grid of 4*4 km on map
Nam <- rgdal::readOGR(dsn = "Province_Data", layer="Namibia")
plot(Nam)
create an empty raster
grid <- raster(extent(Nam))
choose its resolution (4 by4 km)
res(grid) <- 4
give the grid the projections
proj4string(grid) <- proj4string(Nam)
transform this raster into a polygon and there is a grid now
gridpoly <- rasterToPolygons(grid)
this rastertopolygon always gave me error saying r encountered fatal problem and needs to close and r needs to restart
What could the problem be?
raster grids-graticules
edited 3 mins ago
Vince
14.6k32748
asked 10 mins ago
unicornunicorn
65
Please remember to indent all code by four spaces for proper formatting. You can use the{}button on the UI for this purpose.
– Vince
1 min ago
add a comment |
I want to create a grid of 4 by 4km and then place it on a shapefile that I converted to a raster. The final product is a plot of my study area and my set of coordinates inside this created grids on the raster layer.
create a grid of 4*4 km on map
Nam <- rgdal::readOGR(dsn = "Province_Data", layer="Namibia")
plot(Nam)
create an empty raster
grid <- raster(extent(Nam))
choose its resolution (4 by4 km)
res(grid) <- 4
give the grid the projections
proj4string(grid) <- proj4string(Nam)
transform this raster into a polygon and there is a grid now
gridpoly <- rasterToPolygons(grid)
this rastertopolygon always gave me error saying r encountered fatal problem and needs to close and r needs to restart
What could the problem be?
raster grids-graticules
edited 3 mins ago
Vince
14.6k32748
asked 10 mins ago
unicornunicorn
65
I want to create a grid of 4 by 4km and then place it on a shapefile that I converted to a raster. The final product is a plot of my study area and my set of coordinates inside this created grids on the raster layer.
create a grid of 4*4 km on map
Nam <- rgdal::readOGR(dsn = "Province_Data", layer="Namibia")
plot(Nam)
create an empty raster
grid <- raster(extent(Nam))
choose its resolution (4 by4 km)
res(grid) <- 4
give the grid the projections
proj4string(grid) <- proj4string(Nam)
transform this raster into a polygon and there is a grid now
gridpoly <- rasterToPolygons(grid)
this rastertopolygon always gave me error saying r encountered fatal problem and needs to close and r needs to restart
What could the problem be?
raster grids-graticules
raster grids-graticules
edited 3 mins ago
Vince
14.6k32748
asked 10 mins ago
unicornunicorn
65
edited 3 mins ago
Vince
14.6k32748
asked 10 mins ago
unicornunicorn
65
edited 3 mins ago
Vince
14.6k32748
edited 3 mins ago
Vince
14.6k32748
edited 3 mins ago
Vince
14.6k32748
14.6k32748
asked 10 mins ago
unicornunicorn
65
asked 10 mins ago
unicornunicorn
65
asked 10 mins ago
unicornunicorn
65
65
Please remember to indent all code by four spaces for proper formatting. You can use the{}button on the UI for this purpose.
– Vince
1 min ago
add a comment |
Please remember to indent all code by four spaces for proper formatting. You can use the{}button on the UI for this purpose.
– Vince
1 min ago
Please remember to indent all code by four spaces for proper formatting. You can use the
{} button on the UI for this purpose.– Vince
1 min ago
Please remember to indent all code by four spaces for proper formatting. You can use the
{} button on the UI for this purpose.– Vince
1 min ago
add a comment |
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Please remember to indent all code by four spaces for proper formatting. You can use the
{}button on the UI for this purpose.– Vince
1 min ago