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???Zoom to selected??? from the attribute table of the raster

JamalNUMAN

???Zoom to selected??? from the attribute table of the raster

I???m wondering why the command ???Zoom to selected??? is not active in the attribute table of the raster. How could we zoom to the selected cells?

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Thank you for the help,

Best

Jamal

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RPatarasuk

Hi Jamal,

Did you ever got the answer for this? I am just wondering the same. I am doing something that i wanted to find that pixel, but couldn't figure it out.

Risa

MarkBoucher

I think that Zoom to selected works only with feature classes/datasets, not rasters.

If you select a row on the integer raster attribute table*, you can run "Conversion Tools.tbx\From Raster\Raster to Polygon" and it will convert only the selected raster grids to polygons. Then you can choose the new polygon data set and zoom to it. If you were automating this as a tool, I could see doing it this way; otherwise, I'm not sure how you would do it. I see no commands or tools yet.

*You can only get an attribute table from an integer raster.

RPatarasuk

Dear MBoucher21,

That works but it took awhile to convert just one cell. thank you very much for your suggestions

JamalNUMAN

Hi Jamal,

Did you ever got the answer for this? I am just wondering the same. I am doing something that i wanted to find that pixel, but couldn't figure it out.

Risa

Hi Risa,

Unfortunately, I didn�??t find any solution for this problem.

Sounds that we need workaround for this issue! As always!

Best

Jamal

EricRice

Hi Jamal,

Zoom To Selected is short for Zoom to Selected Features. Using your screenshot in the original post, what would you have us do if you selected value = 2? There are 25551 pixels. Where do you want us to zoom? The rows in a raster attribute table are not like rows of discrete features in a feature class, nor is there a shape field containing geometry for easy query. It's not like there is a property within a raster dataset that stores the minimum bounding geometry for each value in the raster that could be used as a zoom extent.

The case where the count is 1 is the only time you have a discrete record in a raster attribute table. I would argue its quite uncommon from all the data I've seen over the years. Zooming to selected pixels would have to make sense for all cases to even be considered.

There are multiple ways to 'find' this pixel.

1. As stated earlier, convert to features.
2. Create a new raster with just that one pixel. There are several ways to do this one. Raster calculator, conditional statements, or if you want to make it easy just use Extract by Attribute from spatial analyst.

Best,
Eric

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DanPatterson_Retired

Excellent reply Eric. You have clearly identified the differences between data structures. their pros and cons, that the casual user may choose to overlook.

JamalNUMAN

Hi Jamal,

Zoom To Selected is short for Zoom to Selected Features. Using your screenshot in the original post, what would you have us do if you selected value = 2? There are 25551 pixels. Where do you want us to zoom? The rows in a raster attribute table are not like rows of discrete features in a feature class, nor is there a shape field containing geometry for easy query. It's not like there is a property within a raster dataset that stores the minimum bounding geometry for each value in the raster that could be used as a zoom extent.

The case where the count is 1 is the only time you have a discrete record in a raster attribute table. I would argue its quite uncommon from all the data I've seen over the years. Zooming to selected pixels would have to make sense for all cases to even be considered.

There are multiple ways to 'find' this pixel.

1. As stated earlier, convert to features.
2. Create a new raster with just that one pixel. There are several ways to do this one. Raster calculator, conditional statements, or if you want to make it easy just use Extract by Attribute from spatial analyst.

Best,
Eric

Many thanks for the contribution Erci.

still, I don�??t see any problem to have the �??zoom to�?� working for cells!

It is the same as we do it for vector when we select more than one feature and apply the �??zoom to�?�! zooming to many cells or many features should be the same!

Best

Jamal

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EricRice

Jamal,

Your request will definitely be considered for some future version. It turns out there are some ideas already floating around for zooming to pixels, although not quite like you (from a table selection). Thanks for the feedback.

Best,
Eric

JamalNUMAN

Jamal,

Your request will definitely be considered for some future version. It turns out there are some ideas already floating around for zooming to pixels, although not quite like you (from a table selection). Thanks for the feedback.

Best,
Eric

Thanks Eric. Yes, please consider it.

Best

Jamal

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