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Add Int32 support for gdal driver

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This commit is contained in:
Christoph Paulik 2020-02-07 16:19:59 +01:00
parent 1784c4f03e
commit 5a73efbb07
3 changed files with 21 additions and 2 deletions
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19
plugins/input/gdal/gdal_featureset.cpp
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@ -397,6 +397,25 @@ feature_ptr gdal_featureset::get_feature(mapnik::query const& q)
feature->set_raster(raster);
break;
}
case GDT_Int32:
{
mapnik::image_gray32s image(im_width, im_height);
image.set(std::numeric_limits<std::int32_t>::max());
raster_nodata = band->GetNoDataValue(&raster_has_nodata);
raster_io_error = band->RasterIO(GF_Read, x_off, y_off, width, height,
image.data(), image.width(), image.height(),
GDT_Int32, 0, 0);
if (raster_io_error == CE_Failure)
{
throw datasource_exception(CPLGetLastErrorMsg());
}
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);
feature->set_raster(raster);
break;
}
default:
case GDT_Int16:
{

2
test/data

@ -1 +1 @@
Subproject commit e83b7f7c6d2d646a638bba404a0d637609722a09
Subproject commit eaf64519e4aecc0b1f689aa96d4d741b22a75a87

2
test/data-visual

@ -1 +1 @@
Subproject commit 54a2c2595c81e838810e413d42a57f09fcf41331
Subproject commit bacfd251da550fa82ea56f6710dc6f85431480c2