Latest Contributions by RobertBorchert

Export your events as a shaprefile first or to a database I have a shapefile of LA county with a single polygon for each city. I also have a table with x,y data that has been represented and the city names for each event match with the city names for the polygons.  So how can I combine the point data to the polygons to do polygon analysis? Trying to join doesn't work since there are several events for each city and only one input for each city ... View more

Export as a shapefile.  Then import the shapefile in AutoCAD instead However, I have yet to see anything that will import your map into AutoCAD so it will look like your ArcGIS did.  Points will be Points, Polygons will be hatches and Polylines will be lines. Hey there, I have a client who is requesting data in an AutoCAD format with the attribute data beign vital to display in AutoCAD 2013. I exported the requested data to a shapefile and used the geoprocessing tool, Export to CAD, thinking it was that simple. Well they didn't not see the attribute data along with the points. I then searched the forums and following threads: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00100000001r000000.htm http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//001000000073000000.htm Those pointed me towards the seed file creation and also the extra fields on the shapefile. I did these steps and know the client can't even view the file sent over. And I can't see the file in my AutoCAD. It as if there was no data in the export.  I'm using ArcMap Info 10.0 SP 3, AutoCAD Lt 09 at my work station? They have AutoCAD 2013\12 I believe. Questions are what level of AutoCAD does this tool support? Do we need to download the AutoCAD plug-in at both workstations to view the data, being exported by the geoprocessing tool? Do I need to create a geodatabase feature and annotation features? Are there any more steps or tricks I might be missing, any help or thoughts would be apperciated. ... View more

If you have the Publisher extension one of the best ways is to make an  ArcReader Published Map File and they can have full viewing access to your database but they cannot edit it.  They can also then have their own PMF on their machines and can actually mark it up and it will not have any effect on your database or your MXD's The ArcReader program is free and can be installed on any machine. You may also want to explore ArcGIS Explorer Desktop as a possible option.  Is it possible to share a map to a group as read only, without letting the group members be able to save the map? I understand users being unable to make changes to what is uploaded, but I'd rather not let them save their own copy. ... View more

All I have to say is wow! Automating a  raster mosaic to run several times an hour.  It should be possible  but  i would think would be hard on resources. Thanks for the suggestion.  One thing I forgot to mention, though, is that this all has to be automated. This mosaic dataset will be updated several times per hour with new versions of each regional image, and I will be maintaining about 3 hours of imagery at any one time.  Each time I import a new raster, I would have to apply the mask, correct?  Is there an ArcPy function I can execute to mask an individual Mosaic Dataset item? Thanks for the help, Jason ... View more

Convert your angles to Long Integers or double precision 0 to 360.  and use that new rotation field in Data Driven Pages for the rotation field. Just made the switch over to 10.1 and been running into non stop issues... One issue is with the Stip Map Index Tool, unlike the strip map tool from 10.0 the tool seems to be unable to calculate negative angles. This makes it unable to properly display with data driven pages, sometimes flipping my layouts almost completely upside down...If i were to present on of these maps my north arrow would then be basically pointing south? I've tried many methods of troubleshooting this issue and non seem to work, been using this tool for years never ran into issues till this new release.. So anyone else running into this issue or know how to solve it? Or should one just revert back to 10.0 ... View more

Perhaps you could get new copies. Do you need the photos to be a specific year? I know in my state we  have air photos dating back to 1991 readily available, and Older I suppose if I went digging for them. Lastly you could instead place a black polygon behind the photo.  That would fill in those blank spots. simply draw polygons in around the exposed area.  The way you did it with orange is great to see them. Then just put the polygon layer lower than the raster in table of contents. ... View more

cropping may be your only viable solution. Those portions in the middle that are that way may be because the scan showed them as so dark they show up as background color. IF you need the edges to be sharp and cropping does not work you can create a mask.  meaning make a great big polygon that is a hole in it that is a smaller than your raster and essentially just as a mask over the image. A little cumbersome but it would cover it up. Thanks for the responses. Yes, I tried it the black collar has the value 0. So display background set to Zero. [ATTACH=CONFIG]24208[/ATTACH] The problem some of the areas inside (valid) also have zero values. So holes are showing up while the collar is removed (minimized). [ATTACH=CONFIG]24209[/ATTACH] Seems to be the problem repeatedly for different datasets. ... View more

You could also incorporate some good old Physics here. Unfortunately I am a number of years out of college but there are basic formulas for calculating how much engergy it takes to go a certain height on an incline.  You can factor friction and resistance out as it would be the same up or down. So if you have the slope your should be able to determine roughly how much energy is needed to get a given mass up a 3% slope to 100 feet.  You will then have potential energy at the top to figure in as an energy savings going down the hill. Hmm you do have variables on engine size, hp etc. Please keep you findings posted here this sounds interesting and when you do knock it out of the park you will have a great basis for a paper for the user conference. ... View more

Exactly Go from SDE to personal or file and then back to SDE ... View more

You have Spatial analyst so you have the proper extension.  Use the Int tool. Converts each cell value of a raster to an integer by truncation. Try it on a copy (disclaimer) Hi, I have an RGB image that visually works as contiguous, single values classified data, but it was delivered to me as an RGB.  I need to convert this into a float or integer raster so I can make isolines and compare this with topographic contour lines.  I have Spatial Analyst but I am not familiar with Python and would prefer not to code anything or write a formula.  This will sound blunt, but if you have an answer but it involves either of these please don't post it, I don't have the time to finish developing ESRI's software for them.  I need point and click, GUI tools, which is why I purchased the software.  I don't have the budget for an exhaustive approach.  If there are any extensions that can make this easier please list.  I'm looking for something that specializes in Raster conversion (I already have Spatial Analyst, yes I see the Map Algebra tool) but haven't found one yet. ... View more

keep in mind different formats have their own different drawbacks as well. For best resolution you would consider one that does not compress the image and take samples and generalize an image based on those next to it.  But the images are a lot smaller. SIDS efficiently show very large areas but can be cumbersome to work with. tiff and bmp have better resolution but tend to me much larger.  You should try several formats and see which one will work best for your needs. I'm upgrading a python script so that it'll function in ArcGIS 10.1 and as such I have the opportunity to change the raster format. Currently, the rasters are saved in Esri's grid format which has a few drawbacks. The most notable one is that grids cannot be stored in a directory structure with more than 120 characters (including the name of the raster). I believe this is no longer the case starting with 10.0; is this true? Also, what is the most efficient raster format when using Spatial Analyst? Is it Esri's Grid, Erdas' IMG, or storing them in a file geodatabase? Efficiency, I'm defining here as the fastest processing time but I'm also concern to a lesser degree with storage size. The output from these steps will be single-band and either integer or float. David Sinton dsinton@blm.gov ... View more

Mask function is the good option. Those areas are still part of the raster even if they have no value.  I would be good if there was a compact function for rasters would compress out those null value areas.  Another option if you have a good photo editor is to cut the image and delete out those null areas.  However, this will probably result in a feathered edge. I have a mosaic dataset that stores two regional single-band (grayscale) images.  In one of the images, there are areas where the pixel value is zero.  I don't want to display these pixels, so I have tried both 1) setting the NoData value of the Mosaic Dataset to 0 (and displaying NoData as transparent), and 2) selecting "Display background value [0] as [transparent]".  Both methods properly set the pixels to transparent, but unfortunately, these transparent areas overlap my second image, obscuring it.  I have enabled time on the mosaic dataset, set the default mosaic operator to "FIRST" and configured it to sort in descending order of the time field (i.e., more recent images have higher priority).  So, whenever the first regional image (with the transparent areas) is the newest image, it is mosaicked over the second image, which obscures the second image's pixels, even when the higher-priority image's pixels are NoData/transparent. Does anyone have a suggestion as to how to resolve this?  I realize I could clip the first image, but would prefer to avoid that.  Is my only other option to configure my mosaic operator/sort order to always prefer the second image, or is there a way to avoid mosaicking transparent pixels? Thanks, Jason ... View more

There is a possible chance your tiff was made from a compressed image format and the those pixels are the result of being uncompressed. You may be able to fix it in something like photo shop. Or possibly bring it into Picassa (copy  of image please) and try the I feel Lucky button.  Either way you are probably going to lose image quality without manually going through the broken pixels and manually adjusting them.  Once images are broken it is really hard to fix them.  Not impossible just not rewarding. I am trying to build a mosaic dataset from tiled source rasters (.tiffs).  The problem is that there are two places with a 1 pixel gap across the entire set of rasters running horizontally.  It looks to be related to precision issues when they were generated. Is there a way to sample the nearby pixels from the adjacent rasters and use the resampled value to fill in the gap? Thanks, Nathan ... View more

Oh, and those speckles are simply imperfections in the raster.  There is enough color there so the show up as a color. The image was probably scanned at the time it was made digital. If you have a really good photo processor you may be able to open it there and cut the edges off. It is just a rough edge. Hello All, I have historic aerial photos in TIFF format: [ATTACH=CONFIG]24202[/ATTACH] These display just fine (in State Plane) The problem arises when I re-project them to UTM (NAD83) -> JP2 format (same with TIFF format too) There is a dark area (some what resembling the extent). [ATTACH=CONFIG]24203[/ATTACH] When I set the display nodata value of 0 to NoColor, I get a tolerable image but still has some speckles in the collar area and holes inside (obviously 0 is a value). [ATTACH=CONFIG]24204[/ATTACH] During the re-projection process: I tried various methods - resampling, setting NoData, compression , etc. Evrytime it is the same result (dark around). [ATTACH=CONFIG]24205[/ATTACH] Am I missing something? Is there a work-around? Thanks ... View more

Double click on the raster in table of contents. Click on the symbology tab. There is a check box for Display Background Value:  Check that  to the right are places to enter values and next to that is a drop down box to select color. Choose that and select no color. What you are seeing is the full extent of the raster and by default it will give it a black color. Hello All, I have historic aerial photos in TIFF format: [ATTACH=CONFIG]24202[/ATTACH] These display just fine (in State Plane) The problem arises when I re-project them to UTM (NAD83) -> JP2 format (same with TIFF format too) There is a dark area (some what resembling the extent). [ATTACH=CONFIG]24203[/ATTACH] When I set the display nodata value of 0 to NoColor, I get a tolerable image but still has some speckles in the collar area and holes inside (obviously 0 is a value). [ATTACH=CONFIG]24204[/ATTACH] During the re-projection process: I tried various methods - resampling, setting NoData, compression , etc. Evrytime it is the same result (dark around). [ATTACH=CONFIG]24205[/ATTACH] Am I missing something? Is there a work-around? Thanks ... View more