# Change Log Format for this file derived from [http://keepachangelog.com](http://keepachangelog.com). ## 1.0.0.beta9 / 2018-03-26 ### Bug Fixes * [AGDEV-30729] Change `OGERR_NONE` to use a lambda. ### Improvements * Fix some new rubocops. ## 1.0.0.beta8 / 2017-04-24 ### Improvements * Ruby 2.3 frozen string compatibility. * Ruby 2.4 `DateTime` time zone handling in `OGR::Feature#set_field_date_time`. ### Bug Fixes * Ensure `GDAL::RasterBandMixinsIOExtensions#read_blocks_by_block` always yields an Array of pixels. ## 1.0.0.beta7 / 2016-09-21 ### Improvements * Removed all `#as_json` and `#to_json` definitions. They were out of date, not used, and sometimes confusing (ex OGR::Geometries#to_json vs #to_geo_json). #### GDAL * Added wrapper for GDALCreateAndReprojectImage in `gdal/dataset_mixins/warp_methods.rb`. * (BREAKING CHANGE) Additionally, changed `GDAL::DatasetMixins::WarpMethods#reproject_image`'s `destination_spatial_reference` named param to `destination_projection` which takes a String of WKT for a projection instead of an `OGR::SpatialReference`. * Added `GDAL::Options.to_hash` to convert a pointer of options to a Ruby Hash. * Return `nil` for missing NODATA values in `GDAL::RasterBand#no_data_value` and `#no_data_value=`. ### Bug Fixes #### Core * Fixed specifying an alternate GDAL library using the `GDAL_LIBRARY_PATH`. #### GDAL * `GDAL::RasterBandMixins::IOExtensions#write_xy_narray` no longer duplicates data when blocks have a remainder. * `GDAL::WarpOptions` should properly act as a wrapper for `FFI::GDAL::WarpOptions`. * `Updated extract methods to be compatible with latest `GDAL::Driver#create_dataset`. * `GDAL::MajorObject` now gets autoloaded. * Fix `GDAL::DatasetMixins::AlgorithmMethods` to use the right `FFI` module for `#rasterize_geometries` and `#rasterize_layers`. #### OGR * [AGDEV-17357] Define constants from C using `const_set` instead of `class_eval`. * Fixed `OGR::GeometryTypes::Curve#points` (missing local variable). ## 1.0.0.beta6 / 2016-04-18 ### New Features #### GDAL * Added wrappers for the Grid API. It uses `GDAL::Gridder`, which is the programmatic equivalent to the `gdal_grid` command-line utility, `GDAL::GridderOptions`, which is an object used to mimic the options you pass to `gdal_grid`, and `GDAL::Grid`, which is the simple object that performs the gridding. * Added first wrapper of `gdalwarper.h` methods, found in `GDAL::DatasetMixins::WarpMethods`. #### OGR * Added `OGR::CoordinateTransform#transform_ex`. ### Improvements * Removed all `ObjectSpace.define_finalizer` calls that "cleaned up" C pointers for Ruby-wrapped objects that had not yet been closed/destroyed. This was keeping those Ruby objects from getting collected (?) and effectively causing lots of unnecessary memory use. #### GDAL * Added `GDAL::GeoTransformMixins::Extensions.new_from_envelope` which lets you create a `GDAL::GeoTransform` using the points from an `OGR::Envelope` and the destination raster's width and height. It's convenient because it calculates the pixel size for you. * Renamed `GDAL::GridTypes` to `GDAL::GridAlgorithms`. This shouldn't impact anyone/thing since it's only relative to the newly added Grid API wrapper. There just happened to me some Grid cruft that had been laying around for some time. * Added `GDAL::RasterBand#write_block`. Somehow this went missing from previous `RasterBand` wrapping. * Renamed `GDAL::RasterBandMixins::Extenions#each_by_block` to `#read_by_block`. Its functionality was doing reading, yet implied reading or writing; since writing by block isn't needed anywhere internally yet, I just renamed this. * Renamed `GDAL::RasterBandMixins#write_array` to `#write_xy_narray`. This method's name inferred that it could write any old Array, but that's not the case--it only writes 2D NArray data. * Added `GDAL::InternalHelpers._buffer_from_data_type` to compliment the existing `._pointer_from_data_type`. Useful for creating buffer-specific pointers from a GDAL data type. * `GDAL::DatasetMixins::Extensions#extent` now manually builds an `OGR::Polygon` instead of polygonizing the entire dataset and taking the envelope of that. Much faster this way. * Refactored `GDAL::RasterBandMixins::Exsentions#projected_points` to return a 3D NArray (indicating pixel/row position) instead of just a 2D NArray of coordinates. * Added `GDAL::InternalHelpers` methods for creating NArrays based on GDAL data types. * `GDAL::Options` values all have `#to_s` called on them to ensure they're Strings before handing them over to GDAL. The GDAL options "hash" requires that both keys and values be Strings. * `GDAL::RasterBandMixins::AlgorithmMethods` that use GDALProgressFunc functions can now participate in GDALScaledProgress functions. * Added `GDAL::RasterBandMixins::Extensions#pixel_count`. * Allow `GDAL::RasterBand#create_mask_band` to take a single flag or many. * Allow `GDAL::Dataset`s to be open in shared mode vs non-shared mode. All Datasets now default to use shared mode. * Allow `GDAL::Driver#create_dataset` and `GDAL::Dataset.open` to take a block, yielding the dataset then closing it afterwards. * `GDAL::RasterBandClassifier` now uses NArray to classify. Can result in quite a large performance gain. * `GDAL::Driver#copy_dataset` now properly takes progress block arguments. * `GDAL::Driver#copy_dataset` now yields a writable Dataset. * Swapped order of params in `GDAL::Driver#rename_dataset` to be (old, new) instead of (new, old). * Added enumerator `RasterAttributeTableMixins::Extensions#each_column` to allow nicer iterating over columns. * `GDAL::RasterAttributeTable` methods that returned -1 when a value can't be returned now return nil instead. * Renamed `GDAL::RasterAttributeTable#value_to_*` methods to be named after their C functions. Also, renamed `#add_value` to `#set_value` and refactored into `RasterAttributeTableMixins::Extensions`. #### OGR * Added `OGR::FeatureExtensions#field()` which gets the field using the associated `OGR::FieldDefinition#type`. Makes so you don't always have to request the field by its type (`field_as_double`). * Added `OGR::LayerMixins::Extensions#point_values()` which gets values for all of the points in the layer. It also allows you to specify getting field values with that, which helps retrieving data for the Grid API. You can also pass it a block to filter out points that don't match some criteria defined in the block. * Added `OGR::LayerMixins::Extensions#any_geometries_with_z?` which simply checks to see if the layer has any geometries with Z values. * `GDAL::DataType.by_name` always calls `#to_s` on the param now, letting you pass in Symbols. * Added `OGR::Point#set_point`, `OGR::Point25#set_point`, and `OGR::GeometryTypes::Curve#set_point` wrappers for `OGR_G_SetPoint_2D` and `OGR_G_SetPoint`. * Added `OGR::LineString#add_geometry` to allow adding a OGR::Point object to the LineString instead of having to pass coordinates in to #add_point. * `OGR::LayerMixins::Extensions#geometry_from_extent` now builds an `OGR::Polygon` using the same algorithm that `GDAL::DatasetMixins::Extensions#extent` uses. One could argue that there was also a bug here in that `geometry_from_extent` used to return the convex hull of the extent, not the extent itself. * Extracted `OGR::LayerMixins::Extensions#each_feature` from `OGR::LayerMixins::Extensions#features` to provide an Enumerator. This lets consumers utilize yielded `OGR::Feature`s as they're retrieved instead of after the `features` Array has been built. `OGR::LayerMixins::Extensions#features` now uses this too. * Added `OGR::GeometryMixins::Extensions#invalid?` to compliment `OGR::Geometry#valid?`. * Added `OGR::LayerMixins::Extensions#point_geometry`, `#each_point_geometry`, and `point_geometries`. Since `#point` implies it returns a Point object, but the OGR API's related method returns point values (x, y, z), it seemed like it would be useful to have a method that returned a geometry. * `OGR::DataSource.open` can now take a block, yielding the data source, then closing it afterwards. ### Bug Fixes * Cleanup `OGR::Feature`s that were a result of `OGR::Layer#next_feature`. According to GDAL docs, these *must* be cleaned up before the layer is. #### GDAL * `GDAL::RasterBandMixins::AlgorithmMethods#fill_nodata!` was calling the old name of the C function. * `GDAL::EnvironmentMethods#dump_open_datasets` now works. #### OGR * `OGR::Field#date=` was casting the passed value to a `Time` object, which in doing so was setting the time zone. If a user passes in an object that doesn't have the TZ set, the method shouldn't be setting it for them. * `OGR::Geometry#point_on_surface` now properly returns a geometry object. * `OGR::CoordinateTransform#transform` never worked. Fixed. * `OGR::GeometryMixins::Extensions#utm_zone` no longer creates invalid geometry. * `OGR::Feature#dump_readable` never worked. Fixed. * `OGR::Geometry#dump_readable` never worked. Fixed. * Added missing output_layer param to `OGR::LayerMixins::OGRLayerMethodMethods`. * `FFI::OGR::Core::WKBGeometryType` was using an INT32 instead of UINT32 and thus 25D geometry types weren't completely accurate. ## 1.0.0.beta5 / 2015-06-16 * Improvements * `GDAL::RasterBandClassifier#equal_count_ranges` now returns `nil` if there aren't enough points per group/class to return the requested number of breaks. * Simplified NDVI (and related) methods in `GDAL::DatasetMixins::Extensions`. * NDVI and related methods in `GDAL::DatasetMixins::Extensions` now close the newly created dataset instead of leaving it open. It's been far too easy to forget to close the dataset after creation, leaving seemingly incorrect resulting datasets (since GDAL doesn't flush writes until the dataset is closed). * NDVI methods in `GDAL::DatasetMixins::Extensions` no longer check for NaNs after doing the NDVI calculations, thus speeding up the algorithm. * `GDAL::DatasetMixins::Extensions#remove_negatives_from` now uses an NArray mask to remove the negative values instead of looping through each value. * Added `GDAL::RasterBand#raster_io` and refactored `GDAL::RasterBand#write_array` to use it. * `GDAL::DatasetMixins::Extensions` NDVI methods now default to NODATA of -9999.0. ## 1.0.0.beta4 / 2015-04-22 Whoa there's lots of changes here... Many are outlined below, but there's really a ton more. * Improvements * Full refactor of FFI/C function wrapper. Closer mapping of Ruby functions within modules to the C-header files where the functions actually reside. * Full redesign of the error handling mechanism; ffi-gdal now hooks in to GDAL's error handling, thus errors raised from GDAL automagically get handed over as Ruby exceptions. (GDAL only; OGR doesn't provide this.) This also entailed adding a bunch of new exceptions and renaming some old ones. * Better library finding on Linux. * Wrapped most of GDAL's Grid API. * Wrapped some of GDAL's Warp API. * GDAL::Dataset can now open PostGISRaster datasets. * Lots more OGR love. Much of this API has now been vetted. * Added `GDAL::RasterClassifier` for classifying raster bands. * Added some wrapper methods for classes that support capability testing. * Bug fixes * Fixed some GDAL::Dataset extension methods (`extract_ndvi` and friends) that weren't properly handling various data types. * Better handling of large files. * Fixed regular crashes when dealing with OGR Geometries and SpatialReferences. ## 1.0.0.beta3 / 2014-11-11 * Bug fixes * `ogr/exceptions` wasn't being required for `ext/error_symbols.rb`, thus any use of an OGR exception was causing a `NameError`. ## 1.0.0.beta2 / 2014-10-23 * Improvements * Added more documentation * Uncommented `attach_function` calls that had been commented out due to lack of support in versions I'd tested on. These get handled now on load. ## 1.0.0.beta1 / 2014-10-23 Lots of changes, so just the highlights here... * API Improvements * Added C and Ruby wrapper for most of OGR. * Better handling of CPLErr return values. * Allow loading, even when C functions aren't defined in the version of GDAL that you're using. * Split out additions to GDAL/OGR in `*_extensions.rb` modules. Methods contained in `Extensions` modules don't directly wrap GDAL/OGR functions, but either provide new functionality or attempt to make library usage more Rubyesque. * Added `#as_json`, `#to_json` to many classes. * Internal Improvements * Lots of cleanup of class internals. * `autoload` child GDAL and OGR Ruby classes. * Renamed files under ffi/ that were derived from GDAL/OGR header files to include `_h` in the name. ## 0.0.4 / 2014-09-27 * Bug fixes * Fixed failure to load on Ubuntu 12.04 (GDAL v1.7.3). ## 0.0.3 / 2014-09-26 * Improvements * The `approx_ok` param for `RasterBand#histogram` should default to `false` (preferring data exactness over performance). * Bug fixes * Fixed URL silliness introduced in 0.0.2. * `Dataset#*_band` methods should return `nil` if the band with that color isn't found. * `RasterBand#default_histogram` died if the band didn't have any values. * `RasterBand#histogram` wasn't returning totals. ## 0.0.2 / 2014-09-26 * New things * Added ability to pass a URL into `GDAL::Dataset`. ## 0.0.1 / 2014-09-26 * Happy Birthday!