Latest Contributions by EricRice

James, Multipoint input is not a supported input type per the tool documentation, so you can't use that anyway.  Regardless, if I can reproduce, I will submit a bug for the crash.  The tool should validate that the input is incorrect. Best, Eric ... View more

Greg, Click the link that says "Support Request Form", "Chat with an Analyst" or just phone in.  Best, Eric ... View more

Greg, Zoom all the way in on one of those circled areas.  Does the image look normal?  I'm trying to determine if a pyramid level is bad or if the source pixel is actually black.  Your screenshots are zoomed out enough that we are surely looking at a pyramid and not the source.  This could be a defect that needs reported to Esri Support.  You don't need maintenance to submit a defect to Support just in case you don't have maintenance. Best, Eric ... View more

Did you read, How Kernel Density Works? "The kernel function is based on the quadratic kernel function described in Silverman (1986, p. 76, equation 4.5)." -Eric ... View more

Hi Steve, The product documentation cautions against using large rasters with ArcScene in the link you provided. It's subtle, but there. "ArcScene is geared for those with smaller spatial datasets who want to examine a defined study area." "Since ArcGlobe is designed to be used with very large datasets....." "ArcScene loads all data into available memory and uses paging files if necessary. This is one of the reasons why ArcScene is optimized for smaller study areas with less amounts of data." For 1 meter data at 700 sq miles of extent you should use ArcGlobe probably. ArcScene has been an in-memory application since I started here at 9.0 and was probably that way since its inception. The issue is not so much related to the application loading things into memory as much as it's related to the application being 32 bit and subject to real limits on the amount of memory it can allocate. 64 bit applications will change this and improve performance (with large data) because more RAM can be snatched up. The application loading items into memory should not be confused with "in-memory analysis" which I would equate to using geoprocessing tools using an in-memory workspace. They are totally separate. Note, in-memory workspaces did not support raster data until 10.1. In terms of LAS Dataset performance I have worked with hundreds of millions of data points in ArcScene using the new LAS Dataset and the performance is what is expected in most cases. I'm going to go out on a limb here and say that your source .las files are not local to your machine and neither is the LAS Dataset. If true, try creating another LAS Dataset with local .las files; I bet you'll see a big improvement. You should check out these help topics. LAS dataset considerations - particularly the section on "Dimensions and size of LAS files". "For best performance, the client machine should have direct access to data on local internal drive, not across network or slower external drives." LAS dataset scalability An overview of displaying LAS datasets in ArcGIS Also, if you're just looking for a raster to be created from your source .las files, have you considered a Mosaic Dataset? It supports .las files as direct inputs (just like rasters) and will rasterize the points on the fly using user defined filters such as Class Code and Return type. The two week result you got (presumably over your network) could have been obtained in less than an hour using the mosaic dataset with your .las files. Additional time would be required to build overviews, but still faster than two weeks. See the LAS to Raster function which the Mosaic Dataset uses to produce the raster on the fly. Best, Eric ... View more

Jim, If the elevation values you attributed to your contours and points were in units of meters, then the result of Topo to Raster is a raster with units of meters.  When you use Identify and it returns a value like 2500 it means that pixel is 2500 meters. Best, Eric ... View more

Jamal, Registering your databases and data directories does not grant the ArcGIS Server account permissions to access your data. You'll need to give the ArcGIS Server account at least read permissions to any folder or database that you register. Also, your trying to register a file geodatabase which means your supposed to register the folder that it resides in. The dialog to register databases that you're in, is meant for SDE geodatabases. See Registering your data with ArcGIS Server using ArcGIS for Desktop. Grant the ArcGIS Server account permissions to the folder, prior to registering the folder. See Making your data accessible to ArcGIS Server. Best, Eric ... View more

Greetings, All Military Analyst was doing to calc high/low values, was to do a Zonal Statistics operation with min/max options, then convert the resulting pixel to a point feature class.  The other thing it did was let you interactively draw the polygon. This can be accomplished by using a 'feature set' when building your own model.  If you don't want to build your own tool to do this, you should check out the Visibility and Range Template from our defense team.  It has a tool built to do what MA was doing. Best, Eric ... View more

The Add Z Information tool should give you what you need. Best, Eric ... View more

Thanks for the clarification. I had this scenario in mind, but wasn't sure so I didn't outline all that is necessary. To do this the way you want, you have to split that record into many records (each segment becomes a record). Depending on how the line was digitized and exactly where the slope split should occur, you may want to densify the line with vertices every X meters prior to splitting the line by the vertices, then do the proposed stuff from my first post. Essentially what you create is a bunch of lines that are just two point lines, which simplifies things a bit since Min/Max/Average slope will all be the same for each record. Or, you can check out the Path Slope Tools we recently published (I checked on it while writing this). The methodology is different than proposed above, but it actually is more what you're looking for in terms of splitting at the natural slope changes. There are multiple tools - you'll want Path Slope By Reclass Values. Just use two classes. You can read about the Path Slope tools in this blog. Best, Eric ... View more

Hi Scott, You essentially need an attribute for slope to symbolize on right? Since your data is already 3d, you can run the Add Z Information tool, to get Min/Max/Average slope for each record. Then just symbolize using Quantities and 2 classes (using 1 of the slope fields).  Slope values are calculated in percentages for you with this tool. Best, Eric ... View more

Agnes, Normally when you apply a stream threshold you tell the software that streams are equal to 1, and all else is nodata.  So, if you set this layer to obtain base heights from itself, you get a constant of 1 and it would be flat.  You can drape the streams on the dem you used to obtain flow direction /accumulation and it should look better for you. Best, Eric ... View more

You're probably working with shapefiles, which don't support textures.  Only geodatabase multipatch feature classes support them. Best, Eric ... View more