Latest Contributions by DavidMedeiros

‎01-14-2014

I have a set of geotiffs created in ArcGIS 10.1. The new images are saved by Arc as 16 bit 3 band tiffs, but show up in Photoshop as an all black, 16 bit grayscale image. I need to upload these images as 4 band tiffs, where the 4th band is an alpha or transparency channel. Aside form the fact that PS can't properly read the image, it also strips the geo ref headers when saving as a new type. Is ArcMap capable of exporting a 4 band tiff? Anybody know how to work with these files outside of Arc so they keep their header info? For reference, what I need to set as transparent are the black collars that geo referencing an image can create in Arc. Thanks, David

‎01-07-2014

I've been meaning to update this thread for a while, sorry. This issue turned out to be that (due to a scripting error) some of the uploaded tile packages were actually empty which caused ArcGIS Online to choke on their publishing.

‎01-06-2014

I'm bumping this thread to see if I can get any help with figuring out where the historic traffic data is in the StreetMap Premium (NAVTEQ) data? Esri's response to a help request was to ask that I contact NAVTEQ directly, despite the fact that this is an Esri branded product. I can't be the only person who has purchased this product for it's historic traffic data. Any help would be greatly appreciated! David

‎12-17-2013

I've recently installed StreetMap Premium 2013 release 2 (NavTeq) in our lab. It's being used for network analysis tasks that require detailed traffic speeds based on time of day. The SMP data is supposed to have historic traffic information but I don't see of those fields in the Streets.sdc layer or any of the other street or road layers in the data. I do see two tables that look like they may have time of day traffic info: Patterns and Streets_Patterns. The problem is, there is no metadata showing in ArcCatalog and the online help page provided for SMP does not list these tables in the Data Dictionary. I have a help call in to Esri but I'm hoping a user here may already have dealt with this issue. Where do I find the historic traffic data in StreetMap Premium? And where is the Data Dictionary for those tables? Any help is greatly appreciated! David

‎12-09-2013

Is Esri ever going to implement admin control over credit usage by organization members? I've been hearing about this for a while now, I thought it was rumored to be a new function in ArcGIS Online as of this Fall but I believe as of now admins still can't directly control how many credits each organization member can have, or see detailed information on their credit usage, product by product, or action by action. From my perspective, helping administer ArcGIS Online in a University setting, the admin controls for ArcGIS Online are one of its weakest features and need some attention. I'd love to hear to what Esri's plans are for upgrading Admin control. Thanks, David

‎11-25-2013

Hi, I have a number of tile packages that have been created locally and uploaded to our organizations ArcGIS Online account. We now want to publish these tiles but are running into some inconsistent processing of the tile packages. In some cases the packages are published in under 15 minutes with no issues, in other instances the packages (sometimes the same test package) will only process up to a certain percent of the tiles and then freeze. We've waited over night with no further progress. When testing this process on their free accounts before switching to the organizations account, every test to publish the tiles packages worked in under 15 minutes. Any help in understanding what the issue is would be greatly appreciated. Thanks, David

‎09-27-2013

Brilliant. I think that will work. I'll give it a try and report back. Thanks, David. Doesn't work. If I have custom symbology set the dragged over layer losses its connection the data file and is sourced to C:\windows\basemap.gdb If I drag over a default version of the same layer it will be sourced correctly and draw. I just need to resource in the new mxd, but I don't understand why that is happening.

‎09-27-2013

David, I think the fastest way to have an empty mxd open, while you have an mxd open with all your layers. Drag and drop a layer into your empty mxd, upload it, remove it from your mxd, drag and drop the next layer into your empty mxd... and so on. This will keep the symbology. Hope this helps! This is only possible if you have an organizational account. Brilliant. I think that will work. I'll give it a try and report back. Thanks, David.

‎09-27-2013

I have an ArcMap mxd with a dozen or so layers that I want to publish to ArcGIS online as individual feature services (rather than publishing the entire mxd as a feature service). What is the fastest way to move these layers to my ArcGIS online account so they can be used in a Web Map? It seems like options for uploading are: Create a Layer package that publishes online, but this seems to only create a downloadable version of the layer, not one that can be added to a web map. Export each layer to .shp, but this requires separate zip folders for each layer (not a big deal but not super convenient). Create a separate mxd for each layer (also not very convenient). Or??? Ideally, I'd like to keep the symbology I set in ArcGIS when uploading these layers, but that doesn't seem to be possible. I'll probably export to zipped .shp files but was hoping there might be another option. Thanks, David

‎09-19-2013

Unfortunately, it is not possible to copy layers you'd have to add them again via their URL to My Content. You can copy a web map by doing a "save as" when editing the web map. This copy will be independent of the original, although will reference the same layers. Thanks, Mike So am I right in thinking that by adding them via the URL to my new sub folder in my content, that this is not an independent file but a reference back to the original file location. If the original file changes or is deleted my "copy" will be changed as well?

‎09-12-2013

I'm taking over an existing ArcGIS Online project and rather than work directly in the current map services and data layers I want to copy a set to a new folder in my account so I don't disrupt the old set as I play around. How can I copy select features and tiles I have in one folder (Branner Home) to another (Campus Base Map)? I see that I can Move the layers over, but I'm concerned this will disrupt the current Web Map that calls those layers. I can use Add Item in the new folder but that doesn't create a copy of the layer, it creates a "Map Image" (??) of the layer. I'm assuming this just means it points back to the original layer and if anything happens to it, my Map Image will be affected. Is it not possible to simply clone the layer and add to a new folder in ArcGIS Online?

‎08-19-2013

What version of ArcMap your are using? Across versions the NoData handling has changed with ESRI and I suspect it might have something to do with that. Before doing Geo-referencing confirm the pixel depth and then after doing it. Try with a high no data value and see if it resolves the problem I've been meaning to update this. The issue was resolved, sort of. It turned out that our original images were not 16 bit as previously thought, they were only 8 bit. ArcGIS, on rectifying, converted them to 16 bit as a result of the no data value being set to 256 by default. This added an extra color, or an alpha channel, not sure. the result was the image bumped up to 16bit and was also unreadable in PS (although I still don't know why, PS can read 16 bt images). Converting back to 8 but fixes the issue as does manually setting the no pixel value to 0. I would have assumed Arc to be smart enough to set the defaults based on the input data set, but hey. Recommendations from others in the field who are doing this same type of work has been to work in a GIS package that handles raster formats better than ArcGIS does, like Global Mapper.

‎08-14-2013

We are geo referencing a series of scanned historical maps. The map scans are 16 bit tif images which open ok in Photo Shop before referencing. Once geo refed and rectified the images look ok in ArcMAP but appear all black in PS despite still being 16bit tifs. The only fix we have found so far is to convert in Arc to an 8 bit tif or jpeg via Raster to New Format. This is ok for general use but we still need original full 16 bit tifs as our master files since some of our users will want the highest resolution an color depth possible fro these maps. Can anyone tell me why the image shows up ok in Arc but not in PS and how I can get these to display in PS as geo refed 16 bit tifs?

‎06-23-2013

Looking for some best practices for using ArcScan. I'm running a workshop on ArcScan but I'm having a very hard time getting AS to work with the demo image I have (http://bluebook.state.or.us/images/state/legislative/maps/bb_SD_map1000.gif). I have the extension turned on, the image converted into a 2 color image using symbology > classified, and I'm in an editing session. Most of the tools are active but using the Vectorization Trace tools don't work. I keep getting an error about the snapping environment settings. I've played with all of the settings that I can find references to in the ArcScan help but no change. I've also tried to run my image using the Automatic Vectorization tutorial but can't get the erase or delete selected cells functions to work. Very frustrating. The ESRI help on this disjointed, info on settings and options are spread over a large number of related pages. Any help on figuring out what I might be missing would be greatly appreciated! David

‎06-05-2013

As I'm working through this I'm beginning to realize why this won't work. How can you have a distance value in a pixel that is different distances away from multiple upstream sources? You could do it stream segment by segment. Or from the bottom of the network, but not the top I guess. This is for a student I'm helping here and I think I'm at the point where I need to know more about what question he's trying to answer with this before proceeding. Stream Order or Network Analyst may have be substituted. I'm still curious though, as this has come up before. When thinking about a cost path analysis and modelling river networks into that, how can you model directionality? Flow? So that the cost model takes into account the benefit from traveling down stream if that's allowed by your model, but the added cost of traveling up stream?

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My Ideas

Latest Contributions by DavidMedeiros

ArcMap geo tiffs are 3 band, but I need 4 band for transparency?

Re: Publishing tiles either works in 15 min or freezes

Re: Historic traffic data in StreetMap Premium? Or Data Dictionary for its tables?

Historic traffic data in StreetMap Premium? Or Data Dictionary for its tables?

Administrative control over credit usage?

Publishing tiles either works in 15 min or freezes

Re: Best method for uploading multiple layers individualy to ArcGIS Online?

Re: Best method for uploading multiple layers individualy to ArcGIS Online?

Best method for uploading multiple layers individualy to ArcGIS Online?

Re: Copy layers to a new folder in My Content?

Copy layers to a new folder in My Content?

Re: Rectified 16 bit tif appears black in PhotoShop?

Rectified 16 bit tif appears black in PhotoShop?

ArcScan settings and best practices?

Re: distance and cost raster, along river network?

Re: Rectified 16 bit tif appears black in PhotoSho...

Collect GPS locations by angle and distance offset...

Can you copy symbology from one Feature Layer to a...

Add an Extent parameter to Disperse Markers tool

Re: Thumbnails for Web Applications