Hello ,
we have more than 300 Geotiff image in a folder we need to pick the right one that fit a polygon we have in shapefile , is there any way we could do that with FME
Thanks
Solved
Pick the right sat image to fit the vector
+11- Contributor
Best answer by boubcher
@jdh
by vector index you meen we have to extract from each sat image the bound box, then compare this to the Polygone
if that the case is there why we could extract at once bounding for each image at once , because we do have more then 400 geotiff
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+52- Celebrity
Hi @boubcher,
You can create a bounding box in all Geotiff and make the spatial relator with your polygon shapefile:
. SpatialRelator
. AreaonAreaOverlayer
Thanks,
Danilo
+40- Contributor
What I usually do is create a vector index of the footprints of my raster images that contains the path to the image as an attribute.
Then the process is to identify the footprints required, either by reading the entire index in and using a spatialFilter/spatialRelator with the area of interest polygon, or having the AOI polygon trigger a featureReader with a spatial constraint of intersects.
Either way, the index polygons that pass are then sent to a FeatureReader with the dataset parameter pointing to the attribute containing the path to the raster image.
+11- Contributor
- Best Answer
@jdh
by vector index you meen we have to extract from each sat image the bound box, then compare this to the Polygone
if that the case is there why we could extract at once bounding for each image at once , because we do have more then 400 geotiff
What I usually do is create a vector index of the footprints of my raster images that contains the path to the image as an attribute.
Then the process is to identify the footprints required, either by reading the entire index in and using a spatialFilter/spatialRelator with the area of interest polygon, or having the AOI polygon trigger a featureReader with a spatial constraint of intersects.
Either way, the index polygons that pass are then sent to a FeatureReader with the dataset parameter pointing to the attribute containing the path to the raster image.
@jdh
by vector index you meen we have to extract from each sat image the bound box, then compare this to the Polygone
if that the case is there why we could extract at once bounding for each image at once , because we do have more then 400 geotiff
In a another workspace, you read your shape polygon and you intersect it with your "catalog" polygons, this will give you the name of each GeoTIFF file that is touched by your shape poylgon. You can then use this filename in a FeatureReader, for example.
+40- Contributor
@jdh
by vector index you meen we have to extract from each sat image the bound box, then compare this to the Polygone
if that the case is there why we could extract at once bounding for each image at once , because we do have more then 400 geotiff
+40- Contributor
@jdh
by vector index you meen we have to extract from each sat image the bound box, then compare this to the Polygone
if that the case is there why we could extract at once bounding for each image at once , because we do have more then 400 geotiff
indextif.fmw