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The clipped raster has the same cell numbers as the original one!!! Why?

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04-12-2011 02:13 AM
JamalNUMAN
Legendary Contributor
The clipped raster has the same cell numbers as the original one!!! Why?

Please, see the attached image that shows the case (particularly the tables!!!)

The clipped raster has the same cell numbers as the original one (exactly the same) despite the fact that the clipped one is just a part of the original raster!!! Of course???

really weird!!!!!

What might be the problem?

Thank you

Regards

Jamal
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Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine
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7 Replies
DanPatterson_Retired
MVP Emeritus
you have to set the extents explicitly in your Environments to be the extent of the layer used to clip the input raster
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JamalNUMAN
Legendary Contributor
thank you for the answer.

sure, i did...please, see the attached images

Jamal


The clipped raster has the same cell numbers as the original one!!! Why?

Please, see the attached image that shows the case (particularly the tables!!!)

The clipped raster has the same cell numbers as the original one (exactly the same) despite the fact that the clipped one is just a part of the original raster!!! Of course�?�

really weird!!!!!

What might be the problem?

Thank you

Regards

Jamal
----------------------------------------
Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine
0 Kudos
JamalNUMAN
Legendary Contributor
anotehr note!

i switched the origional raster to be of type GRID instead of being TIF...! then it did work!!!!

but does this make any sense? why the format of the raster is important?

why does it affect the result???


please, have alook on the attached image

Jamal


you have to set the extents explicitly in your Environments to be the extent of the layer used to clip the input raster
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Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine
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PatrickTaurman
Deactivated User
Hi Jamal,

When you run the Clip tool, it does not automatically update your Attribute Table.  There is an enhancement request to have the Attribute Table updated.  If you run the Build Raster Attribute Table tool, you will get the updated information.

Patrick
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JamalNUMAN
Legendary Contributor
Yes...That does make sense Patrick, thank you.


Hi Jamal,

When you run the Clip tool, it does not automatically update your Attribute Table.  There is an enhancement request to have the Attribute Table updated.  If you run the Build Raster Attribute Table tool, you will get the updated information.

Patrick
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Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine
0 Kudos
RitaSilva
New Contributor
Dear all,

I have the same problem as Jamal had when I try to clip my raster.
I'm working with WorldClim data and I want to clip my variables at Iberian Peninsula scale.
But the clipped raster has alwyas the same cell numbers as the original one!!!

I'm using ArcGIS10.
My raster are in GRID format and I set all the extents explicitly in Environments but it still doesn't work.

Any idea ahat might be the problem this time?
And more important, how I can I solve it?

Thanks in advance,

Best regards,

Rita
0 Kudos
JamalNUMAN
Legendary Contributor
Dear all,

I have the same problem as Jamal had when I try to clip my raster.
I'm working with WorldClim data and I want to clip my variables at Iberian Peninsula scale.
But the clipped raster has alwyas the same cell numbers as the original one!!!

I'm using ArcGIS10.
My raster are in GRID format and I set all the extents explicitly in Environments but it still doesn't work.

Any idea ahat might be the problem this time?
And more important, how I can I solve it?

Thanks in advance,

Best regards,

Rita


Hi Rita,

Did you follow the advice of Patrick (shown in the earlier discussion)?

Please, consider
�?� Environment settings
�?� Data format
�?� Using the �??Build Raster Attribute Table (Data Management)�?� tool after the �??clip�?�?

Best

Jamal
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Jamal Numan
Geomolg Geoportal for Spatial Information
Ramallah, West Bank, Palestine
0 Kudos