17036501662

Committed 18 Aug 2025 09:22AM UTC coverage: 88.073%. First build

Build # 17036501662

Build Type

Pull #1015

github

Committed by

web-flow

Commit Message

Merge a8157bfec into db8685e5e

Pull Request Pull Request #1015: workflow optimization (wip)

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/operators/src/processing/raster_scaling.rs

use crate::engine::{
    CanonicOperatorName, ExecutionContext, InitializedRasterOperator, InitializedSources, Operator,
    OperatorName, RasterBandDescriptor, RasterOperator, RasterQueryProcessor,
    RasterResultDescriptor, SingleRasterSource, TypedRasterQueryProcessor, WorkflowOperatorPath,
};
use crate::optimization::OptimizationError;
use crate::util::Result;
use async_trait::async_trait;
use futures::{StreamExt, TryStreamExt};

use geoengine_datatypes::primitives::SpatialResolution;
use geoengine_datatypes::raster::{
    CheckedMulThenAddTransformation, CheckedSubThenDivTransformation, ElementScaling,
    ScalingTransformation,
};
use geoengine_datatypes::{
    primitives::Measurement,
    raster::{Pixel, RasterPropertiesKey, RasterTile2D},
};
use num::FromPrimitive;
use num_traits::AsPrimitive;
use rayon::ThreadPool;
use serde::{Deserialize, Serialize};
use std::marker::PhantomData;
use std::sync::Arc;

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct RasterScalingParams {
    slope: SlopeOffsetSelection,
    offset: SlopeOffsetSelection,
    output_measurement: Option<Measurement>,
    scaling_mode: ScalingMode,
}

#[derive(Debug, Serialize, Deserialize, Clone, Copy)]
#[serde(rename_all = "camelCase")]
pub enum ScalingMode {
    MulSlopeAddOffset,
    SubOffsetDivSlope,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(rename_all = "camelCase", tag = "type")]
enum SlopeOffsetSelection {
    Auto,
    MetadataKey(RasterPropertiesKey),
    Constant { value: f64 },
}

impl Default for SlopeOffsetSelection {
    fn default() -> Self {
        Self::Auto
    }
}

/// The raster scaling operator scales/unscales the values of a raster by a given scale factor and offset.
/// This is done by applying the following formulas to every pixel.
/// For unscaling the formula is:
///
/// `p_new = p_old * slope + offset`
///
/// For scaling the formula is:
///
/// `p_new = (p_old - offset) / slope`
///
/// `p_old` and `p_new` refer to the old and new pixel values,
/// The slope and offset values are either properties attached to the input raster or a fixed value.
///
/// An example for Meteosat Second Generation properties is:
///
/// - offset: `msg.calibration_offset`
/// - slope: `msg.calibration_slope`
pub type RasterScaling = Operator<RasterScalingParams, SingleRasterSource>;

impl OperatorName for RasterScaling {
    const TYPE_NAME: &'static str = "RasterScaling";
}

pub struct InitializedRasterScalingOperator {
    name: CanonicOperatorName,
    path: WorkflowOperatorPath,
    slope: SlopeOffsetSelection,
    offset: SlopeOffsetSelection,
    result_descriptor: RasterResultDescriptor,
    source: Box<dyn InitializedRasterOperator>,
    scaling_mode: ScalingMode,
}

#[typetag::serde]
#[async_trait]
impl RasterOperator for RasterScaling {
    async fn _initialize(
        self: Box<Self>,
        path: WorkflowOperatorPath,
        context: &dyn ExecutionContext,
    ) -> Result<Box<dyn InitializedRasterOperator>> {
        let name = CanonicOperatorName::from(&self);

        let input = self
            .sources
            .initialize_sources(path.clone(), context)
            .await?;
        let in_desc = input.raster.result_descriptor();

        let out_desc = RasterResultDescriptor {
            spatial_reference: in_desc.spatial_reference,
            data_type: in_desc.data_type,
            time: in_desc.time,
            spatial_grid: in_desc.spatial_grid,
            bands: in_desc
                .bands
                .iter()
                .map(|b| {
                    RasterBandDescriptor::new(
                        b.name.clone(),
                        self.params
                            .output_measurement
                            .clone()
                            .unwrap_or_else(|| b.measurement.clone()),
                    )
                })
                .collect::<Vec<_>>()
                .try_into()?,
        };

        let initialized_operator = InitializedRasterScalingOperator {
            name,
            path,
            slope: self.params.slope,
            offset: self.params.offset,
            result_descriptor: out_desc,
            source: input.raster,
            scaling_mode: self.params.scaling_mode,
        };

        Ok(initialized_operator.boxed())
    }

    span_fn!(RasterScaling);
}

impl InitializedRasterOperator for InitializedRasterScalingOperator {
    fn result_descriptor(&self) -> &RasterResultDescriptor {
        &self.result_descriptor
    }

    fn query_processor(&self) -> Result<TypedRasterQueryProcessor> {
        let slope = self.slope.clone();
        let offset = self.offset.clone();
        let source = self.source.query_processor()?;
        let scaling_mode = self.scaling_mode;

        let res = match scaling_mode {
            ScalingMode::SubOffsetDivSlope => {
                call_on_generic_raster_processor!(source, source_proc => { TypedRasterQueryProcessor::from(create_boxed_processor::<_,_, CheckedSubThenDivTransformation>(self.result_descriptor.clone(), slope, offset,  source_proc)) })
            }
            ScalingMode::MulSlopeAddOffset => {
                call_on_generic_raster_processor!(source, source_proc => { TypedRasterQueryProcessor::from(create_boxed_processor::<_,_, CheckedMulThenAddTransformation>(self.result_descriptor.clone(), slope, offset,  source_proc)) })
            }
        };

        Ok(res)
    }

    fn canonic_name(&self) -> CanonicOperatorName {
        self.name.clone()
    }

    fn name(&self) -> &'static str {
        RasterScaling::TYPE_NAME
    }

    fn path(&self) -> WorkflowOperatorPath {
        self.path.clone()
    }

    fn optimize(
        &self,
        target_resolution: SpatialResolution,
    ) -> Result<Box<dyn RasterOperator>, OptimizationError> {
        Ok(RasterScaling {
            params: RasterScalingParams {
                slope: self.slope.clone(),
                offset: self.offset.clone(),
                output_measurement: Some(self.result_descriptor.bands[0].measurement.clone()),
                scaling_mode: self.scaling_mode,
            },
            sources: SingleRasterSource {
                raster: self.source.optimize(target_resolution)?,
            },
        }
        .boxed())
    }
}

struct RasterTransformationProcessor<Q, P, S>
where
    Q: RasterQueryProcessor<RasterType = P>,
{
    source: Q,
    result_descriptor: RasterResultDescriptor,
    slope: SlopeOffsetSelection,
    offset: SlopeOffsetSelection,
    _transformation: PhantomData<S>,
}

fn create_boxed_processor<Q, P, S>(
    result_descriptor: RasterResultDescriptor,
    slope: SlopeOffsetSelection,
    offset: SlopeOffsetSelection,
    source: Q,
) -> Box<dyn RasterQueryProcessor<RasterType = P>>
where
    Q: RasterQueryProcessor<RasterType = P> + 'static,
    P: Pixel + FromPrimitive + 'static + Default,
    f64: AsPrimitive<P>,
    S: Send + Sync + 'static + ScalingTransformation<P>,
{
    RasterTransformationProcessor::<Q, P, S>::create(result_descriptor, slope, offset, source)
        .boxed()
}

impl<Q, P, S> RasterTransformationProcessor<Q, P, S>
where
    Q: RasterQueryProcessor<RasterType = P> + 'static,
    P: Pixel + FromPrimitive + 'static + Default,
    f64: AsPrimitive<P>,
    S: Send + Sync + 'static + ScalingTransformation<P>,
{
    pub fn create(
        result_descriptor: RasterResultDescriptor,
        slope: SlopeOffsetSelection,
        offset: SlopeOffsetSelection,
        source: Q,
    ) -> RasterTransformationProcessor<Q, P, S> {
        RasterTransformationProcessor {
            source,
            result_descriptor,
            slope,
            offset,
            _transformation: PhantomData,
        }
    }

    async fn scale_tile_async(
        &self,
        tile: RasterTile2D<P>,
        _pool: Arc<ThreadPool>,
    ) -> Result<RasterTile2D<P>> {
        // either use the provided metadata/constant or the default values from the properties
        let offset = match &self.offset {
            SlopeOffsetSelection::MetadataKey(key) => tile.properties.number_property::<P>(key)?,
            SlopeOffsetSelection::Constant { value } => value.as_(),
            SlopeOffsetSelection::Auto => tile.properties.offset().as_(),
        };

        let slope = match &self.slope {
            SlopeOffsetSelection::MetadataKey(key) => tile.properties.number_property::<P>(key)?,
            SlopeOffsetSelection::Constant { value } => value.as_(),
            SlopeOffsetSelection::Auto => tile.properties.scale().as_(),
        };

        let res_tile =
            crate::util::spawn_blocking(move || tile.transform_elements::<S>(slope, offset))
                .await?;

        Ok(res_tile)
    }
}

#[async_trait]
impl<Q, P, S> RasterQueryProcessor for RasterTransformationProcessor<Q, P, S>
where
    P: Pixel + FromPrimitive + 'static + Default,
    f64: AsPrimitive<P>,
    Q: RasterQueryProcessor<RasterType = P> + 'static,
    S: Send + Sync + 'static + ScalingTransformation<P>,
{
    type RasterType = P;

    async fn raster_query<'a>(
        &'a self,
        query: geoengine_datatypes::primitives::RasterQueryRectangle,
        ctx: &'a dyn crate::engine::QueryContext,
    ) -> Result<
        futures::stream::BoxStream<
            'a,
            Result<geoengine_datatypes::raster::RasterTile2D<Self::RasterType>>,
        >,
    > {
        let src = self.source.raster_query(query, ctx).await?;
        let rs = src.and_then(move |tile| self.scale_tile_async(tile, ctx.thread_pool().clone()));
        Ok(rs.boxed())
    }

    fn raster_result_descriptor(&self) -> &RasterResultDescriptor {
        &self.result_descriptor
    }
}

#[cfg(test)]
mod tests {

    use crate::{
        engine::{
            ChunkByteSize, MockExecutionContext, RasterBandDescriptors, SpatialGridDescriptor,
        },
        mock::{MockRasterSource, MockRasterSourceParams},
    };
    use geoengine_datatypes::{
        primitives::{BandSelection, CacheHint, Coordinate2D, TimeInterval},
        raster::{
            BoundedGrid, GeoTransform, Grid2D, GridBoundingBox2D, GridOrEmpty2D, GridShape,
            GridShape2D, MaskedGrid2D, RasterDataType, RasterProperties, TileInformation,
            TilingSpecification,
        },
        spatial_reference::SpatialReference,
        util::test::TestDefault,
    };

    use super::*;

    #[tokio::test]
    async fn test_unscale() {
        let tile_size_in_pixels = GridShape2D::new_2d(2, 2);
        let result_descriptor = RasterResultDescriptor {
            data_type: RasterDataType::U8,
            spatial_reference: SpatialReference::epsg_4326().into(),
            time: None,
            spatial_grid: SpatialGridDescriptor::source_from_parts(
                GeoTransform::new(Coordinate2D::new(0., 0.), 1., -1.),
                tile_size_in_pixels.bounding_box(),
            ),
            bands: RasterBandDescriptors::new_single_band(),
        };

        let tiling_specification = TilingSpecification::new(tile_size_in_pixels);
        let raster =
            MaskedGrid2D::from(Grid2D::new(tile_size_in_pixels, vec![7_u8, 7, 7, 6]).unwrap());

        let ctx = MockExecutionContext::new_with_tiling_spec(tiling_specification);
        let query_ctx = ctx.mock_query_context(ChunkByteSize::test_default());

        let mut raster_props = RasterProperties::default();
        raster_props.set_scale(2.0);
        raster_props.set_offset(1.0);

        let raster_tile = RasterTile2D::new_with_tile_info_and_properties(
            TimeInterval::default(),
            TileInformation {
                global_geo_transform: TestDefault::test_default(),
                global_tile_position: [0, 0].into(),
                tile_size_in_pixels,
            },
            0,
            raster.into(),
            raster_props,
            CacheHint::default(),
        );

        let mrs = MockRasterSource {
            params: MockRasterSourceParams {
                data: vec![raster_tile],
                result_descriptor,
            },
        }
        .boxed();

        let scaling_mode = ScalingMode::MulSlopeAddOffset;

        let output_measurement = None;

        let op = RasterScaling {
            params: RasterScalingParams {
                slope: SlopeOffsetSelection::Auto,
                offset: SlopeOffsetSelection::Auto,
                output_measurement,
                scaling_mode,
            },
            sources: SingleRasterSource { raster: mrs },
        }
        .boxed();

        let initialized_op = op
            .initialize(WorkflowOperatorPath::initialize_root(), &ctx)
            .await
            .unwrap();

        let result_descriptor = initialized_op.result_descriptor();

        assert_eq!(result_descriptor.data_type, RasterDataType::U8);
        assert_eq!(
            result_descriptor.bands[0].measurement,
            Measurement::Unitless
        );

        let query_processor = initialized_op.query_processor().unwrap();

        let query = geoengine_datatypes::primitives::RasterQueryRectangle::new(
            GridBoundingBox2D::new([0, 0], [1, 1]).unwrap(),
            TimeInterval::default(),
            BandSelection::first(),
        );

        let TypedRasterQueryProcessor::U8(typed_processor) = query_processor else {
            panic!("expected TypedRasterQueryProcessor::U8");
        };

        let stream = typed_processor
            .raster_query(query, &query_ctx)
            .await
            .unwrap();

        let results = stream.collect::<Vec<Result<RasterTile2D<u8>>>>().await;

        let result_tile = results.as_slice()[0].as_ref().unwrap();

        let result_grid = result_tile.grid_array.clone();

        match result_grid {
            GridOrEmpty2D::Grid(grid) => {
                assert_eq!(grid.shape(), &GridShape::new([2, 2]));

                let res = grid.masked_element_deref_iterator().collect::<Vec<_>>();

                let expected = vec![Some(15), Some(15), Some(15), Some(13)];

                assert_eq!(res, expected);
            }
            GridOrEmpty2D::Empty(_) => panic!("expected GridOrEmpty2D::Grid"),
        }
    }

    #[tokio::test]
    async fn test_scale() {
        let tile_size_in_pixels = GridShape2D::new_2d(2, 2);
        let result_descriptor = RasterResultDescriptor {
            data_type: RasterDataType::U8,
            spatial_reference: SpatialReference::epsg_4326().into(),
            time: None,
            spatial_grid: SpatialGridDescriptor::source_from_parts(
                GeoTransform::new(Coordinate2D::new(0., 0.), 1., -1.),
                tile_size_in_pixels.bounding_box(),
            ),
            bands: RasterBandDescriptors::new_single_band(),
        };

        let tiling_specification = TilingSpecification::new(tile_size_in_pixels);

        let raster =
            MaskedGrid2D::from(Grid2D::new(tile_size_in_pixels, vec![15_u8, 15, 15, 13]).unwrap());

        let ctx = MockExecutionContext::new_with_tiling_spec(tiling_specification);
        let query_ctx = ctx.mock_query_context(ChunkByteSize::test_default());

        let mut raster_props = RasterProperties::default();
        raster_props.set_scale(2.0);
        raster_props.set_offset(1.0);

        let raster_tile = RasterTile2D::new_with_tile_info_and_properties(
            TimeInterval::default(),
            TileInformation {
                global_geo_transform: TestDefault::test_default(),
                global_tile_position: [0, 0].into(),
                tile_size_in_pixels,
            },
            0,
            raster.into(),
            raster_props,
            CacheHint::default(),
        );

        let mrs = MockRasterSource {
            params: MockRasterSourceParams {
                data: vec![raster_tile],
                result_descriptor,
            },
        }
        .boxed();

        let scaling_mode = ScalingMode::SubOffsetDivSlope;

        let output_measurement = None;

        let params = RasterScalingParams {
            slope: SlopeOffsetSelection::Auto,
            offset: SlopeOffsetSelection::Auto,
            output_measurement,
            scaling_mode,
        };

        let op = RasterScaling {
            params,
            sources: SingleRasterSource { raster: mrs },
        }
        .boxed();

        let initialized_op = op
            .initialize(WorkflowOperatorPath::initialize_root(), &ctx)
            .await
            .unwrap();

        let result_descriptor = initialized_op.result_descriptor();

        assert_eq!(result_descriptor.data_type, RasterDataType::U8);
        assert_eq!(
            result_descriptor.bands[0].measurement,
            Measurement::Unitless
        );

        let query_processor = initialized_op.query_processor().unwrap();

        let query = geoengine_datatypes::primitives::RasterQueryRectangle::new(
            GridBoundingBox2D::new([0, 0], [1, 1]).unwrap(),
            TimeInterval::default(),
            BandSelection::first(),
        );

        let TypedRasterQueryProcessor::U8(typed_processor) = query_processor else {
            panic!("expected TypedRasterQueryProcessor::U8");
        };

        let stream = typed_processor
            .raster_query(query, &query_ctx)
            .await
            .unwrap();

        let results = stream.collect::<Vec<Result<RasterTile2D<u8>>>>().await;

        let result_tile = results.as_slice()[0].as_ref().unwrap();

        let result_grid = result_tile.grid_array.clone();

        match result_grid {
            GridOrEmpty2D::Grid(grid) => {
                assert_eq!(grid.shape(), &GridShape::new([2, 2]));

                let res = grid.masked_element_deref_iterator().collect::<Vec<_>>();

                let expected = vec![Some(7), Some(7), Some(7), Some(6)];

                assert_eq!(res, expected);
            }
            GridOrEmpty2D::Empty(_) => panic!("expected GridOrEmpty2D::Grid"),
        }
    }
}

1	use crate::engine::{
2	CanonicOperatorName, ExecutionContext, InitializedRasterOperator, InitializedSources, Operator,
3	OperatorName, RasterBandDescriptor, RasterOperator, RasterQueryProcessor,
4	RasterResultDescriptor, SingleRasterSource, TypedRasterQueryProcessor, WorkflowOperatorPath,
5	};
6	use crate::optimization::OptimizationError;
7	use crate::util::Result;
8	use async_trait::async_trait;
9	use futures::{StreamExt, TryStreamExt};
10
11	use geoengine_datatypes::primitives::SpatialResolution;
12	use geoengine_datatypes::raster::{
13	CheckedMulThenAddTransformation, CheckedSubThenDivTransformation, ElementScaling,
14	ScalingTransformation,
15	};
16	use geoengine_datatypes::{
17	primitives::Measurement,
18	raster::{Pixel, RasterPropertiesKey, RasterTile2D},
19	};
20	use num::FromPrimitive;
21	use num_traits::AsPrimitive;
22	use rayon::ThreadPool;
23	use serde::{Deserialize, Serialize};
24	use std::marker::PhantomData;
25	use std::sync::Arc;
26
27	#[derive(Debug, Serialize, Deserialize, Clone)]
28	#[serde(rename_all = "camelCase")]
29	pub struct RasterScalingParams {
30	slope: SlopeOffsetSelection,
31	offset: SlopeOffsetSelection,
32	output_measurement: Option<Measurement>,
33	scaling_mode: ScalingMode,
34	}
35
36	#[derive(Debug, Serialize, Deserialize, Clone, Copy)]
37	#[serde(rename_all = "camelCase")]
38	pub enum ScalingMode {
39	MulSlopeAddOffset,
40	SubOffsetDivSlope,
41	}
42
43	#[derive(Debug, Serialize, Deserialize, Clone)]
44	#[serde(rename_all = "camelCase", tag = "type")]
45	enum SlopeOffsetSelection {
46	Auto,
47	MetadataKey(RasterPropertiesKey),
48	Constant { value: f64 },
49	}
50
51	impl Default for SlopeOffsetSelection {
52	fn default() -> Self {	×
53	Self::Auto	×
54	}	×
55	}
56
57	/// The raster scaling operator scales/unscales the values of a raster by a given scale factor and offset.
58	/// This is done by applying the following formulas to every pixel.
59	/// For unscaling the formula is:
60	///
61	/// `p_new = p_old * slope + offset`
62	///
63	/// For scaling the formula is:
64	///
65	/// `p_new = (p_old - offset) / slope`
66	///
67	/// `p_old` and `p_new` refer to the old and new pixel values,
68	/// The slope and offset values are either properties attached to the input raster or a fixed value.
69	///
70	/// An example for Meteosat Second Generation properties is:
71	///
72	/// - offset: `msg.calibration_offset`
73	/// - slope: `msg.calibration_slope`
74	pub type RasterScaling = Operator<RasterScalingParams, SingleRasterSource>;
75
76	impl OperatorName for RasterScaling {
77	const TYPE_NAME: &'static str = "RasterScaling";
78	}
79
80	pub struct InitializedRasterScalingOperator {
81	name: CanonicOperatorName,
82	path: WorkflowOperatorPath,
83	slope: SlopeOffsetSelection,
84	offset: SlopeOffsetSelection,
85	result_descriptor: RasterResultDescriptor,
86	source: Box<dyn InitializedRasterOperator>,
87	scaling_mode: ScalingMode,
88	}
89
90	#[typetag::serde]	×
91	#[async_trait]
92	impl RasterOperator for RasterScaling {
93	async fn _initialize(
94	self: Box<Self>,
95	path: WorkflowOperatorPath,
96	context: &dyn ExecutionContext,
97	) -> Result<Box<dyn InitializedRasterOperator>> {	4✔
98	let name = CanonicOperatorName::from(&self);	2✔
99
100	let input = self	2✔
101	.sources	2✔
102	.initialize_sources(path.clone(), context)	2✔
103	.await?;	2✔
104	let in_desc = input.raster.result_descriptor();	2✔
105
106	let out_desc = RasterResultDescriptor {	2✔
107	spatial_reference: in_desc.spatial_reference,	2✔
108	data_type: in_desc.data_type,	2✔
109	time: in_desc.time,	2✔
110	spatial_grid: in_desc.spatial_grid,	2✔
111	bands: in_desc	2✔
112	.bands	2✔
113	.iter()	2✔
114	.map(\|b\| {	2✔
115	RasterBandDescriptor::new(	2✔
116	b.name.clone(),	2✔
117	self.params	2✔
118	.output_measurement	2✔
119	.clone()	2✔
120	.unwrap_or_else(\|\| b.measurement.clone()),	2✔
121	)
122	})	2✔
123	.collect::<Vec<_>>()	2✔
124	.try_into()?,	2✔
125	};
126
127	let initialized_operator = InitializedRasterScalingOperator {	2✔
128	name,	2✔
129	path,	2✔
130	slope: self.params.slope,	2✔
131	offset: self.params.offset,	2✔
132	result_descriptor: out_desc,	2✔
133	source: input.raster,	2✔
134	scaling_mode: self.params.scaling_mode,	2✔
135	};	2✔
136
137	Ok(initialized_operator.boxed())	2✔
138	}	4✔
139
140	span_fn!(RasterScaling);
141	}
142
143	impl InitializedRasterOperator for InitializedRasterScalingOperator {
144	fn result_descriptor(&self) -> &RasterResultDescriptor {	2✔
145	&self.result_descriptor	2✔
146	}	2✔
147
148	fn query_processor(&self) -> Result<TypedRasterQueryProcessor> {	2✔
149	let slope = self.slope.clone();	2✔
150	let offset = self.offset.clone();	2✔
151	let source = self.source.query_processor()?;	2✔
152	let scaling_mode = self.scaling_mode;	2✔
153
154	let res = match scaling_mode {	2✔
155	ScalingMode::SubOffsetDivSlope => {
156	call_on_generic_raster_processor!(source, source_proc => { TypedRasterQueryProcessor::from(create_boxed_processor::<_,_, CheckedSubThenDivTransformation>(self.result_descriptor.clone(), slope, offset, source_proc)) })	1✔
157	}
158	ScalingMode::MulSlopeAddOffset => {
159	call_on_generic_raster_processor!(source, source_proc => { TypedRasterQueryProcessor::from(create_boxed_processor::<_,_, CheckedMulThenAddTransformation>(self.result_descriptor.clone(), slope, offset, source_proc)) })	1✔
160	}
161	};
162
163	Ok(res)	2✔
164	}	2✔
165
166	fn canonic_name(&self) -> CanonicOperatorName {	×
167	self.name.clone()	×
168	}	×
169
170	fn name(&self) -> &'static str {	×
171	RasterScaling::TYPE_NAME	×
172	}	×
173
174	fn path(&self) -> WorkflowOperatorPath {	×
175	self.path.clone()	×
176	}	×
177
NEW 178	fn optimize(	×
NEW 179	&self,	×
NEW 180	target_resolution: SpatialResolution,	×
NEW 181	) -> Result<Box<dyn RasterOperator>, OptimizationError> {	×
182	Ok(RasterScaling {
NEW 183	params: RasterScalingParams {	×
NEW 184	slope: self.slope.clone(),	×
NEW 185	offset: self.offset.clone(),	×
NEW 186	output_measurement: Some(self.result_descriptor.bands[0].measurement.clone()),	×
NEW 187	scaling_mode: self.scaling_mode,	×
NEW 188	},	×
189	sources: SingleRasterSource {
NEW 190	raster: self.source.optimize(target_resolution)?,	×
191	},
192	}
NEW 193	.boxed())	×
NEW 194	}	×
195	}
196
197	struct RasterTransformationProcessor<Q, P, S>
198	where
199	Q: RasterQueryProcessor<RasterType = P>,
200	{
201	source: Q,
202	result_descriptor: RasterResultDescriptor,
203	slope: SlopeOffsetSelection,
204	offset: SlopeOffsetSelection,
205	_transformation: PhantomData<S>,
206	}
207
208	fn create_boxed_processor<Q, P, S>(	2✔
209	result_descriptor: RasterResultDescriptor,	2✔
210	slope: SlopeOffsetSelection,	2✔
211	offset: SlopeOffsetSelection,	2✔
212	source: Q,	2✔
213	) -> Box<dyn RasterQueryProcessor<RasterType = P>>	2✔
214	where	2✔
215	Q: RasterQueryProcessor<RasterType = P> + 'static,	2✔
216	P: Pixel + FromPrimitive + 'static + Default,	2✔
217	f64: AsPrimitive<P>,	2✔
218	S: Send + Sync + 'static + ScalingTransformation<P>,	2✔
219	{
220	RasterTransformationProcessor::<Q, P, S>::create(result_descriptor, slope, offset, source)	2✔
221	.boxed()	2✔
222	}	2✔
223
224	impl<Q, P, S> RasterTransformationProcessor<Q, P, S>
225	where
226	Q: RasterQueryProcessor<RasterType = P> + 'static,
227	P: Pixel + FromPrimitive + 'static + Default,
228	f64: AsPrimitive<P>,
229	S: Send + Sync + 'static + ScalingTransformation<P>,
230	{
231	pub fn create(	2✔
232	result_descriptor: RasterResultDescriptor,	2✔
233	slope: SlopeOffsetSelection,	2✔
234	offset: SlopeOffsetSelection,	2✔
235	source: Q,	2✔
236	) -> RasterTransformationProcessor<Q, P, S> {	2✔
237	RasterTransformationProcessor {	2✔
238	source,	2✔
239	result_descriptor,	2✔
240	slope,	2✔
241	offset,	2✔
242	_transformation: PhantomData,	2✔
243	}	2✔
244	}	2✔
245
246	async fn scale_tile_async(	2✔
247	&self,	2✔
248	tile: RasterTile2D<P>,	2✔
249	_pool: Arc<ThreadPool>,	2✔
250	) -> Result<RasterTile2D<P>> {	2✔
251	// either use the provided metadata/constant or the default values from the properties
252	let offset = match &self.offset {	2✔
253	SlopeOffsetSelection::MetadataKey(key) => tile.properties.number_property::<P>(key)?,	×
254	SlopeOffsetSelection::Constant { value } => value.as_(),	×
255	SlopeOffsetSelection::Auto => tile.properties.offset().as_(),	2✔
256	};
257
258	let slope = match &self.slope {	2✔
259	SlopeOffsetSelection::MetadataKey(key) => tile.properties.number_property::<P>(key)?,	×
260	SlopeOffsetSelection::Constant { value } => value.as_(),	×
261	SlopeOffsetSelection::Auto => tile.properties.scale().as_(),	2✔
262	};
263
264	let res_tile =	2✔
265	crate::util::spawn_blocking(move \|\| tile.transform_elements::<S>(slope, offset))	2✔
266	.await?;	2✔
267
268	Ok(res_tile)	2✔
269	}	2✔
270	}
271
272	#[async_trait]
273	impl<Q, P, S> RasterQueryProcessor for RasterTransformationProcessor<Q, P, S>
274	where
275	P: Pixel + FromPrimitive + 'static + Default,
276	f64: AsPrimitive<P>,
277	Q: RasterQueryProcessor<RasterType = P> + 'static,
278	S: Send + Sync + 'static + ScalingTransformation<P>,
279	{
280	type RasterType = P;
281
282	async fn raster_query<'a>(
283	&'a self,
284	query: geoengine_datatypes::primitives::RasterQueryRectangle,
285	ctx: &'a dyn crate::engine::QueryContext,
286	) -> Result<
287	futures::stream::BoxStream<
288	'a,
289	Result<geoengine_datatypes::raster::RasterTile2D<Self::RasterType>>,
290	>,
291	> {	4✔
292	let src = self.source.raster_query(query, ctx).await?;	2✔
293	let rs = src.and_then(move \|tile\| self.scale_tile_async(tile, ctx.thread_pool().clone()));	2✔
294	Ok(rs.boxed())	2✔
295	}	4✔
296
297	fn raster_result_descriptor(&self) -> &RasterResultDescriptor {	2✔
298	&self.result_descriptor	2✔
299	}	2✔
300	}
301
302	#[cfg(test)]
303	mod tests {
304
305	use crate::{
306	engine::{
307	ChunkByteSize, MockExecutionContext, RasterBandDescriptors, SpatialGridDescriptor,
308	},
309	mock::{MockRasterSource, MockRasterSourceParams},
310	};
311	use geoengine_datatypes::{
312	primitives::{BandSelection, CacheHint, Coordinate2D, TimeInterval},
313	raster::{
314	BoundedGrid, GeoTransform, Grid2D, GridBoundingBox2D, GridOrEmpty2D, GridShape,
315	GridShape2D, MaskedGrid2D, RasterDataType, RasterProperties, TileInformation,
316	TilingSpecification,
317	},
318	spatial_reference::SpatialReference,
319	util::test::TestDefault,
320	};
321
322	use super::*;
323
324	#[tokio::test]
325	async fn test_unscale() {	1✔
326	let tile_size_in_pixels = GridShape2D::new_2d(2, 2);	1✔
327	let result_descriptor = RasterResultDescriptor {	1✔
328	data_type: RasterDataType::U8,	1✔
329	spatial_reference: SpatialReference::epsg_4326().into(),	1✔
330	time: None,	1✔
331	spatial_grid: SpatialGridDescriptor::source_from_parts(	1✔
332	GeoTransform::new(Coordinate2D::new(0., 0.), 1., -1.),	1✔
333	tile_size_in_pixels.bounding_box(),	1✔
334	),	1✔
335	bands: RasterBandDescriptors::new_single_band(),	1✔
336	};	1✔
337
338	let tiling_specification = TilingSpecification::new(tile_size_in_pixels);	1✔
339	let raster =	1✔
340	MaskedGrid2D::from(Grid2D::new(tile_size_in_pixels, vec![7_u8, 7, 7, 6]).unwrap());	1✔
341
342	let ctx = MockExecutionContext::new_with_tiling_spec(tiling_specification);	1✔
343	let query_ctx = ctx.mock_query_context(ChunkByteSize::test_default());	1✔
344
345	let mut raster_props = RasterProperties::default();	1✔
346	raster_props.set_scale(2.0);	1✔
347	raster_props.set_offset(1.0);	1✔
348
349	let raster_tile = RasterTile2D::new_with_tile_info_and_properties(	1✔
350	TimeInterval::default(),	1✔
351	TileInformation {	1✔
352	global_geo_transform: TestDefault::test_default(),	1✔
353	global_tile_position: [0, 0].into(),	1✔
354	tile_size_in_pixels,	1✔
355	},	1✔
356	0,
357	raster.into(),	1✔
358	raster_props,	1✔
359	CacheHint::default(),	1✔
360	);
361
362	let mrs = MockRasterSource {	1✔
363	params: MockRasterSourceParams {	1✔
364	data: vec![raster_tile],	1✔
365	result_descriptor,	1✔
366	},	1✔
367	}	1✔
368	.boxed();	1✔
369
370	let scaling_mode = ScalingMode::MulSlopeAddOffset;	1✔
371
372	let output_measurement = None;	1✔
373
374	let op = RasterScaling {	1✔
375	params: RasterScalingParams {	1✔
376	slope: SlopeOffsetSelection::Auto,	1✔
377	offset: SlopeOffsetSelection::Auto,	1✔
378	output_measurement,	1✔
379	scaling_mode,	1✔
380	},	1✔
381	sources: SingleRasterSource { raster: mrs },	1✔
382	}	1✔
383	.boxed();	1✔
384
385	let initialized_op = op	1✔
386	.initialize(WorkflowOperatorPath::initialize_root(), &ctx)	1✔
387	.await	1✔
388	.unwrap();	1✔
389
390	let result_descriptor = initialized_op.result_descriptor();	1✔
391
392	assert_eq!(result_descriptor.data_type, RasterDataType::U8);	1✔
393	assert_eq!(	1✔
394	result_descriptor.bands[0].measurement,	1✔
395	Measurement::Unitless
396	);
397
398	let query_processor = initialized_op.query_processor().unwrap();	1✔
399
400	let query = geoengine_datatypes::primitives::RasterQueryRectangle::new(	1✔
401	GridBoundingBox2D::new([0, 0], [1, 1]).unwrap(),	1✔
402	TimeInterval::default(),	1✔
403	BandSelection::first(),	1✔
404	);
405
406	let TypedRasterQueryProcessor::U8(typed_processor) = query_processor else {	1✔
407	panic!("expected TypedRasterQueryProcessor::U8");	×
408	};
409
410	let stream = typed_processor	1✔
411	.raster_query(query, &query_ctx)	1✔
412	.await	1✔
413	.unwrap();	1✔
414
415	let results = stream.collect::<Vec<Result<RasterTile2D<u8>>>>().await;	1✔
416
417	let result_tile = results.as_slice()[0].as_ref().unwrap();	1✔
418
419	let result_grid = result_tile.grid_array.clone();	1✔
420
421	match result_grid {	1✔
422	GridOrEmpty2D::Grid(grid) => {	1✔
423	assert_eq!(grid.shape(), &GridShape::new([2, 2]));	1✔
424		1✔
425	let res = grid.masked_element_deref_iterator().collect::<Vec<_>>();	1✔
426		1✔
427	let expected = vec![Some(15), Some(15), Some(15), Some(13)];	1✔
428		1✔
429	assert_eq!(res, expected);	1✔
430	}	1✔
431	GridOrEmpty2D::Empty(_) => panic!("expected GridOrEmpty2D::Grid"),	1✔
432	}	1✔
433	}	1✔
434
435	#[tokio::test]
436	async fn test_scale() {	1✔
437	let tile_size_in_pixels = GridShape2D::new_2d(2, 2);	1✔
438	let result_descriptor = RasterResultDescriptor {	1✔
439	data_type: RasterDataType::U8,	1✔
440	spatial_reference: SpatialReference::epsg_4326().into(),	1✔
441	time: None,	1✔
442	spatial_grid: SpatialGridDescriptor::source_from_parts(	1✔
443	GeoTransform::new(Coordinate2D::new(0., 0.), 1., -1.),	1✔
444	tile_size_in_pixels.bounding_box(),	1✔
445	),	1✔
446	bands: RasterBandDescriptors::new_single_band(),	1✔
447	};	1✔
448
449	let tiling_specification = TilingSpecification::new(tile_size_in_pixels);	1✔
450
451	let raster =	1✔
452	MaskedGrid2D::from(Grid2D::new(tile_size_in_pixels, vec![15_u8, 15, 15, 13]).unwrap());	1✔
453
454	let ctx = MockExecutionContext::new_with_tiling_spec(tiling_specification);	1✔
455	let query_ctx = ctx.mock_query_context(ChunkByteSize::test_default());	1✔
456
457	let mut raster_props = RasterProperties::default();	1✔
458	raster_props.set_scale(2.0);	1✔
459	raster_props.set_offset(1.0);	1✔
460
461	let raster_tile = RasterTile2D::new_with_tile_info_and_properties(	1✔
462	TimeInterval::default(),	1✔
463	TileInformation {	1✔
464	global_geo_transform: TestDefault::test_default(),	1✔
465	global_tile_position: [0, 0].into(),	1✔
466	tile_size_in_pixels,	1✔
467	},	1✔
468	0,
469	raster.into(),	1✔
470	raster_props,	1✔
471	CacheHint::default(),	1✔
472	);
473
474	let mrs = MockRasterSource {	1✔
475	params: MockRasterSourceParams {	1✔
476	data: vec![raster_tile],	1✔
477	result_descriptor,	1✔
478	},	1✔
479	}	1✔
480	.boxed();	1✔
481
482	let scaling_mode = ScalingMode::SubOffsetDivSlope;	1✔
483
484	let output_measurement = None;	1✔
485
486	let params = RasterScalingParams {	1✔
487	slope: SlopeOffsetSelection::Auto,	1✔
488	offset: SlopeOffsetSelection::Auto,	1✔
489	output_measurement,	1✔
490	scaling_mode,	1✔
491	};	1✔
492
493	let op = RasterScaling {	1✔
494	params,	1✔
495	sources: SingleRasterSource { raster: mrs },	1✔
496	}	1✔
497	.boxed();	1✔
498
499	let initialized_op = op	1✔
500	.initialize(WorkflowOperatorPath::initialize_root(), &ctx)	1✔
501	.await	1✔
502	.unwrap();	1✔
503
504	let result_descriptor = initialized_op.result_descriptor();	1✔
505
506	assert_eq!(result_descriptor.data_type, RasterDataType::U8);	1✔
507	assert_eq!(	1✔
508	result_descriptor.bands[0].measurement,	1✔
509	Measurement::Unitless
510	);
511
512	let query_processor = initialized_op.query_processor().unwrap();	1✔
513
514	let query = geoengine_datatypes::primitives::RasterQueryRectangle::new(	1✔
515	GridBoundingBox2D::new([0, 0], [1, 1]).unwrap(),	1✔
516	TimeInterval::default(),	1✔
517	BandSelection::first(),	1✔
518	);
519
520	let TypedRasterQueryProcessor::U8(typed_processor) = query_processor else {	1✔
521	panic!("expected TypedRasterQueryProcessor::U8");	×
522	};
523
524	let stream = typed_processor	1✔
525	.raster_query(query, &query_ctx)	1✔
526	.await	1✔
527	.unwrap();	1✔
528
529	let results = stream.collect::<Vec<Result<RasterTile2D<u8>>>>().await;	1✔
530
531	let result_tile = results.as_slice()[0].as_ref().unwrap();	1✔
532
533	let result_grid = result_tile.grid_array.clone();	1✔
534
535	match result_grid {	1✔
536	GridOrEmpty2D::Grid(grid) => {	1✔
537	assert_eq!(grid.shape(), &GridShape::new([2, 2]));	1✔
538		1✔
539	let res = grid.masked_element_deref_iterator().collect::<Vec<_>>();	1✔
540		1✔
541	let expected = vec![Some(7), Some(7), Some(7), Some(6)];	1✔
542		1✔
543	assert_eq!(res, expected);	1✔
544	}	1✔
545	GridOrEmpty2D::Empty(_) => panic!("expected GridOrEmpty2D::Grid"),	1✔
546	}	1✔
547	}	1✔
548	}

geo-engine / geoengine / 17036501662

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