use factory from titiler.xarray #72
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| """titiler.multidim""" | ||
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| __version__ = "0.3.0" |
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| @@ -0,0 +1,181 @@ | ||
| """TiTiler.xarray factory.""" | ||
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| from typing import List, Literal, Optional, Type | ||
| from urllib.parse import urlencode | ||
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| import jinja2 | ||
| import numpy as np | ||
| from attrs import define | ||
| from fastapi import Depends, Query | ||
| from starlette.requests import Request | ||
| from starlette.responses import HTMLResponse | ||
| from starlette.templating import Jinja2Templates | ||
| from typing_extensions import Annotated | ||
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| from titiler.core.dependencies import ColorFormulaParams, DefaultDependency | ||
| from titiler.core.resources.enums import ImageType | ||
| from titiler.core.resources.responses import JSONResponse | ||
| from titiler.multidim.reader import XarrayReader | ||
|
There was a problem hiding this comment. non-blocking but now that I'm looking at this I am wondering if the naming convention should help distinguish local application dependencies vs imported dependencies... like titiler_app.multidim|xarray or titiler.app.multidim|xarrat |
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| from titiler.xarray.dependencies import DatasetParams, XarrayIOParams, XarrayParams | ||
| from titiler.xarray.factory import TilerFactory as BaseTilerFactory | ||
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| @define(kw_only=True) | ||
| class XarrayTilerFactory(BaseTilerFactory): | ||
| """Xarray Tiler Factory.""" | ||
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| reader: Type[XarrayReader] = XarrayReader | ||
| reader_dependency: Type[DefaultDependency] = XarrayParams | ||
| dataset_dependency: Type[DefaultDependency] = DatasetParams | ||
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| def register_routes(self) -> None: # noqa: C901 | ||
| """Register Info / Tiles / TileJSON endoints.""" | ||
| super().register_routes() | ||
| self.variables() | ||
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| def variables(self) -> None: | ||
| """Register /variables endpoint""" | ||
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| @self.router.get( | ||
| "/variables", | ||
| response_class=JSONResponse, | ||
| responses={200: {"description": "Return dataset's Variables."}}, | ||
| ) | ||
| def get_variables( | ||
| src_path=Depends(self.path_dependency), | ||
| io_params=Depends(XarrayIOParams), | ||
| ) -> List[str]: | ||
| """return available variables.""" | ||
| return self.reader.list_variables( | ||
| src_path=src_path, | ||
| group=io_params.group, | ||
| decode_times=io_params.decode_times, | ||
| ) | ||
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| def statistics(self) -> None: | ||
| """Register /statistics and /histogram endpoints""" | ||
| super().statistics() | ||
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| @self.router.get( | ||
| "/histogram", | ||
| response_class=JSONResponse, | ||
| responses={200: {"description": "Return histogram for this data variable"}}, | ||
| response_model_exclude_none=True, | ||
| ) | ||
| def histogram( | ||
| src_path=Depends(self.path_dependency), | ||
| reader_params=Depends(self.reader_dependency), | ||
| ): | ||
| with self.reader( | ||
| src_path=src_path, | ||
| variable=reader_params.variable, | ||
| group=reader_params.group, | ||
| decode_times=reader_params.decode_times, | ||
| datetime=reader_params.datetime, | ||
| ) as src_dst: | ||
| boolean_mask = ~np.isnan(src_dst.input) | ||
| data_values = src_dst.input.values[boolean_mask] | ||
| counts, values = np.histogram(data_values, bins=10) | ||
| counts, values = counts.tolist(), values.tolist() | ||
| buckets = list( | ||
| zip(values, [values[i + 1] for i in range(len(values) - 1)]) | ||
| ) | ||
| hist_dict = [] | ||
| for idx, bucket in enumerate(buckets): | ||
| hist_dict.append({"bucket": bucket, "value": counts[idx]}) | ||
| return hist_dict | ||
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| def map_viewer(self) -> None: | ||
| """Register /map endpoints""" | ||
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| @self.router.get("/{tileMatrixSetId}/map", response_class=HTMLResponse) | ||
| def map_viewer( | ||
| request: Request, | ||
| tileMatrixSetId: Annotated[ # type: ignore | ||
| Literal[tuple(self.supported_tms.list())], | ||
| "Identifier selecting one of the supported TileMatrixSetIds", | ||
| ], | ||
| url: Annotated[Optional[str], Query(description="Dataset URL")] = None, | ||
| variable: Annotated[ | ||
| Optional[str], | ||
| Query(description="Xarray Variable"), | ||
| ] = None, | ||
| group: Annotated[ | ||
| Optional[int], | ||
| Query( | ||
| description="Select a specific zarr group from a zarr hierarchy, can be for pyramids or datasets. Can be used to open a dataset in HDF5 files." | ||
| ), | ||
| ] = None, | ||
| decode_times: Annotated[ | ||
| bool, | ||
| Query( | ||
| title="decode_times", | ||
| description="Whether to decode times", | ||
| ), | ||
| ] = True, | ||
| drop_dim: Annotated[ | ||
| Optional[str], | ||
| Query(description="Dimension to drop"), | ||
| ] = None, | ||
| datetime: Annotated[ | ||
| Optional[str], Query(description="Slice of time to read (if available)") | ||
| ] = None, | ||
| tile_format: Annotated[ | ||
| Optional[ImageType], | ||
| Query( | ||
| description="Default will be automatically defined if the output image needs a mask (png) or not (jpeg).", | ||
| ), | ||
| ] = None, | ||
| tile_scale: Annotated[ | ||
| int, | ||
| Query( | ||
| gt=0, lt=4, description="Tile size scale. 1=256x256, 2=512x512..." | ||
| ), | ||
| ] = 1, | ||
| minzoom: Annotated[ | ||
| Optional[int], | ||
| Query(description="Overwrite default minzoom."), | ||
| ] = None, | ||
| maxzoom: Annotated[ | ||
| Optional[int], | ||
| Query(description="Overwrite default maxzoom."), | ||
| ] = None, | ||
| post_process=Depends(self.process_dependency), | ||
| rescale=Depends(self.rescale_dependency), | ||
| color_formula=Depends(ColorFormulaParams), | ||
| colormap=Depends(self.colormap_dependency), | ||
| render_params=Depends(self.render_dependency), | ||
| dataset_params=Depends(self.dataset_dependency), | ||
| ): | ||
| """Return map Viewer.""" | ||
| jinja2_env = jinja2.Environment( | ||
| loader=jinja2.ChoiceLoader([jinja2.PackageLoader(__package__, ".")]) | ||
| ) | ||
| templates = Jinja2Templates(env=jinja2_env) | ||
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| if url: | ||
| tilejson_url = self.url_for( | ||
| request, "tilejson", tileMatrixSetId=tileMatrixSetId | ||
| ) | ||
| if request.query_params._list: | ||
| tilejson_url += f"?{urlencode(request.query_params._list)}" | ||
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| tms = self.supported_tms.get(tileMatrixSetId) | ||
| return templates.TemplateResponse( | ||
| name="map.html", | ||
| context={ | ||
| "request": request, | ||
| "tilejson_endpoint": tilejson_url, | ||
| "tms": tms, | ||
| "resolutions": [matrix.cellSize for matrix in tms], | ||
| }, | ||
| media_type="text/html", | ||
| ) | ||
| else: | ||
| return templates.TemplateResponse( | ||
| name="map-form.html", | ||
| context={ | ||
| "request": request, | ||
| }, | ||
| media_type="text/html", | ||
| ) | ||
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