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Image Service in ArcGIS Online does not let me zoom in past level 19

Question asked by pk_davidson on Dec 22, 2016
Latest reply on Jan 4, 2017 by pk_davidson
Branched from an earlier discussion

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Hi Kelly:

It is the new Image Service I published that disappears when zooming in beyond L19.

The two imagery basemaps (one with labels and one without) that Esri publishes will zoom in beyond L19 but it's just faking the zoom, which is fine. I mean, it's not increasing the image resolution, just some type of resampling, correct?

That's what I want my published layer to do, to zoom in beyond L19 using a dynamic layer just so the imagery stays there, even if dithered beyond recognition ;-)

I typically use the Streets basemap or the Esri Imagery. However, I believe the Esri is at 12"/pix? and we're down at 6" so...

Sorry for the delay, I thought I had posted this but when I checked, I had to recover the post from 11/22. Didn't realize I've sat on this for a month. But I just stood up a 10.5 stand alone Image server so I'm ready to get back to solving this.

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MidnightYell2003

Jan 4, 2017 12:37 PM

Paul,

Looking back at this thread: Tiled image in ArcGIS Online does not let me zoom in far

Did you try publishing your image to the Tiling Scheme of "Existing cached map/image service"?

And then choose one of the default Esri basemaps as the existing service.

I am curious to know what kind of progress was made with this.

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pk_davidson @ MidnightYell2003 on Jan 4, 2017 2:02 PM

Hi Adrian:

Yes, I did do that and consumed about 200+GB of disk space to go down to level 20 (I think.)

Once you hit 19 and below the disk space goes up rapidly, not surprising.

I believe that's about the limit of our Orthos (6"/pix) so I don't want to take up disk space for what are really just dithered images consuming TB of data.

I have not had success yet with being able to create a combined dynamic/tiled image service.

That's what I really want. Tile it down to the maximum resolution and then let it dither and run dynamic beyond that.

My solution to date is that I stood up a new 10.5 Image Server and have published our mosaics to that server as dynamic services. The performance of the dynamic service is acceptable and then users can zoom in as far as they want. It's the difference, so far, of between 1 to 2 seconds of slower drawing time when changing zoom levels.

The tiled is nice because it's <1 second but for now, I have enough else to consume my time. ;-)

I am waiting to see what happens with performance when we turn the Portal loose to all our users. So far it's a limited set of users.

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MidnightYell2003 Jan 4, 2017 12:37 PM
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Paul,

Looking back at this thread: Tiled image in ArcGIS Online does not let me zoom in far
Did you try publishing your image to the Tiling Scheme of "Existing cached map/image service"?

And then choose one of the default Esri basemaps as the existing service.

I am curious to know what kind of progress was made with this.
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- pk_davidson @ MidnightYell2003 on Jan 4, 2017 2:02 PM
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  Hi Adrian:
  Yes, I did do that and consumed about 200+GB of disk space to go down to level 20 (I think.)
  Once you hit 19 and below the disk space goes up rapidly, not surprising.
  I believe that's about the limit of our Orthos (6"/pix) so I don't want to take up disk space for what are really just dithered images consuming TB of data.
  
  I have not had success yet with being able to create a combined dynamic/tiled image service.
  That's what I really want. Tile it down to the maximum resolution and then let it dither and run dynamic beyond that.
  
  My solution to date is that I stood up a new 10.5 Image Server and have published our mosaics to that server as dynamic services. The performance of the dynamic service is acceptable and then users can zoom in as far as they want. It's the difference, so far, of between 1 to 2 seconds of slower drawing time when changing zoom levels.
  The tiled is nice because it's <1 second but for now, I have enough else to consume my time. ;-)
  
  I am waiting to see what happens with performance when we turn the Portal loose to all our users. So far it's a limited set of users.
  2 people found this helpful
  Like • Show 0 Likes0
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Image Service in ArcGIS Online does not let me zoom in past level 19

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