topic Re: SRTM Elevation Service for ArcGIS Explorer? in ArcGIS Explorer Desktop Questions

SRTM Elevation Service for ArcGIS Explorer?

JerryGarcia — Mon, 22 Aug 2011 00:37:04 GMT

I have SRTM elevation data which I would like to use in ArcGIS Explorer.

What is the best way to consume this data in ArcGIS Explorer?

1) 2d Image Service?
2) Globe Service?

Is caching the whole dataset required?

Thanks!

http://srtm.usgs.gov/index.php

Re: SRTM Elevation Service for ArcGIS Explorer?

JerryGarcia — Wed, 24 Aug 2011 19:46:38 GMT

I have SRTM elevation data which I would like to use in ArcGIS Explorer.

What is the best way to consume this data in ArcGIS Explorer?

1) 2d Image Service?
2) Globe Service?

Is caching the whole dataset required?

Thanks!

http://srtm.usgs.gov/index.php

Does Esri have a recommendation as to the best practice for serving DEM data to ArcGIS Explorer 3D view? Is this somewhere in the on-line help? Thanks!

Re: SRTM Elevation Service for ArcGIS Explorer?

MarkBockenhauer — Fri, 26 Aug 2011 18:30:53 GMT

A globeservice will give you the best performance, but it does require you to build a full cache before you can use the service.

DEM data published as an image service can also be used as elevation. In this mode the elevation is genereated on demand, and you may see surface seams and spikes, as the data is pulled in and rendered. This data is not cached, so it will do this every time you use the service.

Which way is best, really depends on the use case. For an elevation "basemap" used by many users a fully cached globeservice is probably worth the investment. You can also use the image service elevation in addition to the globeservice.. the elevation layer on "top" is the one that gets used for display.

Mark

Re: SRTM Elevation Service for ArcGIS Explorer?

JerryGarcia — Sun, 28 Aug 2011 15:15:33 GMT

A globeservice will give you the best performance, but it does require you to build a full cache before you can use the service.

DEM data published as an image service can also be used as elevation. In this mode the elevation is genereated on demand, and you may see surface seams and spikes, as the data is pulled in and rendered. This data is not cached, so it will do this every time you use the service.

Which way is best, really depends on the use case. For an elevation "basemap" used by many users a fully cached globeservice is probably worth the investment. You can also use the image service elevation in addition to the globeservice.. the elevation layer on "top" is the one that gets used for display.

Mark

Thanks for your response. It sounds like we should build cache w/ globe service. You mention using both in one scenario. This is where you may want to view the elevation data as well as use the values? You mean use the globe for the DEM values and the image service for display? Thanks!