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Restoring the way filter factors operate so that select algorithms still are passed variables in the form of filter factor to change their operation. Added this operation to raster plugin where it never existed prior. Additionally added a test that was created for #3698 proving that it is not currently an issue

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This commit is contained in:
Blake Thompson 2017-06-07 14:03:09 -05:00
parent 08d8746b3a
commit 061b29f108
4 changed files with 13 additions and 8 deletions
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13
plugins/input/gdal/gdal_featureset.cpp
View file

@ -149,6 +149,9 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
box2d<double> intersect = raster_extent_.intersect(q.get_bbox());
box2d<double> box = t.forward(intersect);
// get the filter factor if it is set
double filter_factor = q.get_filter_factor();
//size of resized output pixel in source image domain
double margin_x = 1.0 / (std::fabs(dx_) * std::get<0>(q.resolution()));
double margin_y = 1.0 / (std::fabs(dy_) * std::get<1>(q.resolution()));
@ -224,7 +227,7 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
{
throw datasource_exception(CPLGetLastErrorMsg());
}
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, 0.0);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, filter_factor);
// set nodata value to be used in raster colorizer
if (nodata_value_) raster->set_nodata(*nodata_value_);
else raster->set_nodata(raster_nodata);
@ -244,7 +247,7 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
{
throw datasource_exception(CPLGetLastErrorMsg());
}
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, 0.0);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, filter_factor);
// set nodata value to be used in raster colorizer
if (nodata_value_) raster->set_nodata(*nodata_value_);
else raster->set_nodata(raster_nodata);
@ -263,7 +266,7 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
{
throw datasource_exception(CPLGetLastErrorMsg());
}
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, 0.0);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, filter_factor);
// set nodata value to be used in raster colorizer
if (nodata_value_) raster->set_nodata(*nodata_value_);
else raster->set_nodata(raster_nodata);
@ -283,7 +286,7 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
{
throw datasource_exception(CPLGetLastErrorMsg());
}
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, 0.0);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, filter_factor);
// set nodata value to be used in raster colorizer
if (nodata_value_) raster->set_nodata(*nodata_value_);
else raster->set_nodata(raster_nodata);
@ -583,7 +586,7 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
}
}
}
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, 0.0);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, image, filter_factor);
// set nodata value to be used in raster colorizer
if (nodata_value_) raster->set_nodata(*nodata_value_);
else raster->set_nodata(raster_nodata);

5
plugins/input/raster/raster_featureset.cpp
View file

@ -55,7 +55,8 @@ raster_featureset<LookupPolicy>::raster_featureset(LookupPolicy const& policy,
extent_(extent),
bbox_(q.get_bbox()),
curIter_(policy_.begin()),
endIter_(policy_.end())
endIter_(policy_.end()),
filter_factor_(q.get_filter_factor())
{
}
@ -115,7 +116,7 @@ feature_ptr raster_featureset<LookupPolicy>::next()
rem.maxy() + y_off + height);
feature_raster_extent = t.backward(feature_raster_extent);
mapnik::image_any data = reader->read(x_off, y_off, width, height);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, std::move(data), 1.0);
mapnik::raster_ptr raster = std::make_shared<mapnik::raster>(feature_raster_extent, intersect, std::move(data), filter_factor_);
feature->set_raster(raster);
}
}

1
plugins/input/raster/raster_featureset.hpp
View file

@ -321,6 +321,7 @@ private:
mapnik::box2d<double> bbox_;
iterator_type curIter_;
iterator_type endIter_;
double filter_factor_;
};
#endif // RASTER_FEATURESET_HPP

2
test/data-visual

@ -1 +1 @@
Subproject commit c7507c08a942fe9bffe5916510d3969f765f16c2
Subproject commit 35ebee7a653a48ca33501636bcc1d10b7838d67f