sij/mapnik
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Working loop of values

Browse source
This commit is contained in:
Tom MacWright 2012-01-26 15:32:24 -05:00
parent 38aadc16af
commit a6b03cc21c
1 changed files with 19 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
src/memory_datasource.cpp
View file

@ -26,6 +26,7 @@
#include <mapnik/memory_featureset.hpp>
#include <mapnik/params.hpp>
#include <mapnik/feature_factory.hpp>
#include <boost/math/distributions/normal.hpp>
// stl
#include <algorithm>
@ -112,6 +113,24 @@ layer_descriptor memory_datasource::get_descriptor() const
std::map<std::string, mapnik::parameters> memory_datasource::get_statistics() const
{
std::map<std::string, mapnik::parameters> _stats;
// Temporary storage for full values
std::map<std::string, std::vector<double> > _values;
mapnik::query q(envelope());
mapnik::featureset_ptr fs;
mapnik::feature_ptr fp;
fs = features(q);
while(fp = fs->next()) {
std::map<std::string,mapnik::value> const& fprops = fp->props();
std::map<std::string,mapnik::value>::const_iterator it = fprops.begin();
std::map<std::string,mapnik::value>::const_iterator end = fprops.end();
for (; it != end; ++it) {
_values[it->first].push_back(it->second.to_double());
}
}
return _stats;
}