raster_algebra_wrap
Prototype
template<class Raster>
raster_algebra_wrapper<Raster> raster_algebra_wrap(Raster raster);
Description
Wraps a raster in a raster_algebra_wrapper, so it can be used in raster algebra operations.
Definition
<pronto/raster/raster_algebra_wrapper.h> (open in Github)
Requirements on types
Raster must implement the RasterView concept.
Preconditions
raster must be initialized
Complexity
O(1)
Example of use
//example_raster_algebra_wrapper.cpp
#include <pronto/raster/io.h>
#include <pronto/raster/plot_raster.h>
#include <pronto/raster/raster_algebra_operators.h>
#include <pronto/raster/raster_algebra_wrapper.h>
namespace pr = pronto::raster;
int main()
{
auto raster =pr::create_temp<int>(3, 4);
auto wrapped = pr::raster_algebra_wrap(raster);
int i = 0;
for (auto&& v : raster) {
v = ((i+=3)%=7);
}
plot_raster(wrapped);
plot_raster(wrapped + 1000);// using the raster algebra operator+()
return 0;
}
Output:
Rows: 3, Cols: 4, Value type: int
3 6 2 5
1 4 0 3
6 2 5 1
Rows: 3, Cols: 4, Value type: int
1003 1006 1002 1005
1001 1004 1000 1003
1006 1002 1005 1001