Is it possible to use the function "intersect" of a FeatureReader with raster data?
+3Best answer by gio
It will not clip an area out of a raster.
Intersect is a relational query wich will result in reading all rasters crossing initiator boundary.
When selecting a raster by using intersect trough a feature reader, you probably still wil want to reduce it to the BB of your initiator. Wich means clipping. (creating a smaller rectangular object..)
Wich is wastefull; select raster by extracting its rasterextent (RasterExtenCoercer), then intersect wiht your area of interest. Then select raster by attribute (name) and clipp it. Much faster.
Selecting by feature reader is slow (for ecw's at least)
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+3
+15- Contributor
- Best Answer
It will not clip an area out of a raster.
Intersect is a relational query wich will result in reading all rasters crossing initiator boundary.
When selecting a raster by using intersect trough a feature reader, you probably still wil want to reduce it to the BB of your initiator. Wich means clipping. (creating a smaller rectangular object..)
Wich is wastefull; select raster by extracting its rasterextent (RasterExtenCoercer), then intersect wiht your area of interest. Then select raster by attribute (name) and clipp it. Much faster.
Selecting by feature reader is slow (for ecw's at least)
+3It will not clip an area out of a raster.
Intersect is a relational query wich will result in reading all rasters crossing initiator boundary.
When selecting a raster by using intersect trough a feature reader, you probably still wil want to reduce it to the BB of your initiator. Wich means clipping. (creating a smaller rectangular object..)
Wich is wastefull; select raster by extracting its rasterextent (RasterExtenCoercer), then intersect wiht your area of interest. Then select raster by attribute (name) and clipp it. Much faster.
Selecting by feature reader is slow (for ecw's at least)
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