What happens when the Clip checkbox is selected?
What happens when the Clip checkbox is not-selected?
The Clip column in the basket can be used to control how data is extracted for the selected area. The Clip option is not available for every dataset, where it is available the Clip checkbox is selected, but it can be deselected if required:
When the Clip checkbox is selected, one of the following scenarios will happen:
If the resulting clipped and merged dataset is less than 20,000
pixels in either direction and the selected area does not cover more
than three tiles either horizontally or vertically then the data is
clipped and merged in to a single dataset.
Data is clipped to the Minimum Bounding Rectangle (MBR) of the selected
area that intersects each tile, not the exact shape drawn, and then
merged together.
The images below show how the selected area is merged in to a single
dataset and made available for download.
Area selected in Data download (tile boundaries included for clarity) |
Data supplied from Digimap |
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If the resulting clipped and merged dataset is more than 20,000
pixels in either direction or the selected area covers more than three
tiles either horizontally or vertically then the tiles are clipped
to the Minimum Bounding Rectangle (MBR) of the selected area in each tile.
The images below show how each tile is clipped to the Minimum Bounding
Rectangle (MBR) of the selected area that intersects each tile and
provided separately.
Area selected in Data download (tile boundaries included for clarity) |
Data supplied from Digimap |
 |
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When the Clip checkbox is not selected you will be provided with all of the full data tiles that intersect your study area. None of the data will be clipped or merged.
Not found what you are looking for? Please ask a question or give feedback by emailing (digimap@ed.ac.uk) or chatting with the Digimap team.
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