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Hi Kory Thanks for looking into this for me. I was teaching in the field this spring and must not have seen your response then. I apologize for the delay. I tried your approach on the computer in the lab where I taught the course and it did not work, but suspected that is because the lab only updates to new version occasionally it was still on 2.0.1. I do have the "chart" right-click option on my laptop which is now using 2.1.3. Thanks for your assistance and glad this functionality is now with Pro. Curiously the help page says that the data has to have an attribute table, but my 8 band tif image doesn't seem to. But it works regardless An additional question, if I may however. When I request the chart, I only get the option to use the bands (which show up as R, G and B, sadly, not their source names) displayed in the RGB image. Any way to access each band without having a display layer for each (which is not too terribly onerous)? Thanks David
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06-25-2018
11:38 AM
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When teaching remote sensing or how to classify rasters, I find it is vital that students have access to the histogram of the data either in the dataset or in the current view (both would be helpful). Even in the help for Pro's Stretch Function, a histogram makes it clear how or why a percent clip routine is useful. Stretch function—ArcGIS Pro | ArcGIS Desktop However, it is only possible to see histograms of integer continuous data, albeit poorly, in the symbology pane, but not for floating point or imagery data. Thus, in my GIS and Remote Sensing class that now uses Pro, I have to apologize for Pro's lack of functionality and display histograms from other products, for example, showing atmospheric contributions to radiance distributions from ERMapper that we used years ago. from http://geology.wlu.edu/harbor/geol260/lecture_notes/Notes_rs_haze.html Please put a window in the symbology pane (or if not that, at least make a geoprocessing tool or function) that displays a histogram for any raster (continuous, fp, or categorical), single band image (tif, ers, grid), or multiband image (tif, grid, ers, etc). Optimally, it will have a DRA button that can be turned on such that when the focus changes, the histogram will adjust. Thanks David Harbor
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03-09-2018
02:13 PM
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Tyler, I have the same experience with adding then calculating fields, but I think only when executed from model builder. When the tool is execuated separately and the table is opened *after* processing finishes, the new field and values appear. They will not appear if the table is in an open window. Is that what you mean by a manual refresh? David
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07-22-2017
12:53 PM
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As a preliminary tool in my work, I have been using the "create watersheds" under the raster analysis portal (from the ArcGIS portal) in ArcGIS Pro 1.x. I just switched to ArcGIS Pro 2.0, and hence we switched the license server to 10.5.1. However, now these tools are greyed out with a warning saying these tools are disabled because I have to be connected to a portal with raster analysis tools. I have tried making my active portal both www.arcgis.com and mycollege.maps.argis.com, and neither works. We have an educational license and I am an administrator in the organization, and have all the administrative level privileges. We do not have our own portal set up for image or data service. Under "roles" in our organization, we do not have the option to turn on "Raster Analysis" under "Content and Analysis" as suggested on this page. http://server.arcgis.com/en/portal/latest/use/roles.htm, but I don't think we're running a portal here at our organization (just students and faculty using ArcGIS Pro and Desktop independently). Can I get these helpful portal tools back? Thanks
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07-21-2017
12:15 PM
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I frequently create models to delineate and export stream rasters from DEM input. However, on large basins, computing basin accumulation (thanks to ESRI, on just one core) takes hours and has to be done twice, once for the accumulation step and once again in the watershed command. The latter neither uses the already present accumulation nor does it save it such that I wouldn't have to compute it separately. Any way around this? And to the watershed command, let me add stream link, basin and stream link. Each recalculates flow accumulation and doesn't save it. For clarity, I am using ArcGIS Pro 2.0 in model builder.
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07-17-2017
12:06 PM
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Using ArcGIS Pro 1.3.1 and doing a tutorial from Getting to Know ArcGIS Pro Chapter 4, some students are able to click a "map notes" template and add them, and others are not. When some of them click one of the Map Notes icons, nothing happens, others get the feature layers in the contents and can create notes. The ArcMon suggest that a process was called, but nothing happens. New to ArcGIS Pro this year. Don't know if/where event logs are kept. What is different about individual maps that would cause this error? What requirements are we missing? Is there a tool /python command to run that would give an error message to look at? Playing stump the professor; they won.
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03-12-2017
11:43 AM
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Two questions Bruce why reverse the y and x in the atan function? what is the operator += ? (sorry, I'm a python noob)
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02-19-2015
01:04 PM
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Here is some code that works for me, where the "answer" does not as shown in previous post. def CalculaAzimuth(linea): if (hasattr(linea,'type') and linea.type == 'polyline'): xf = linea.firstPoint.X yf = linea.firstPoint.Y xl = linea.lastPoint.X yl = linea.lastPoint.Y dX = xl - xf dY = yl - yf PI = math.pi Azimuth = 0 #Default case, dX = 0 and dY >= 0 if dX > 0: Azimuth = 90 - math.atan( dY / dX ) * 180 / PI elif dX < 0: Azimuth = 270 - math.atan( dY / dX )* 180 / PI elif dY < 0: Azimuth = 180 return Azimuth else: return False which comes from here Syntax Errors when Calculating Azimuth with Python in Arcgis 10 - Stack Overflow Wish I could make use of "atan2(y,x)" but I couldn't get it to return 0-360 correctly in all quadrants.
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02-19-2015
12:37 PM
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Thanks for the postings, but I just tried this on an NHD dataset looking at the azimuths of stream polylines. It doesn't return the correct azimuth The azimuth -90 to 90 works, but between 90 and 270 degrees are incorrect. The streams flow direction is reversed. I am going to look at the math, and will post if I see an improved answer.
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02-18-2015
01:52 PM
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When I enabled the background processing option, no geoprocessing history was output to the metadata. However, disabling this option produces the history in the metadata. Thanks, Josh. That does it for me too. And thanks for the bug tip as well. Love to have background geoprocessing, but not at the expense of metadata. Dave
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12-31-2013
03:42 AM
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Have you tried the option "FGDC CSDGM Metadata"? Also, if the data is in a geodatabase, perhaps it may need to be upgraded? Thanks Josh. Yes, I have tried the FGDC option, and I have both upgraded old file geodatabases, and created new ones in 10.2. Neither results in geoprocessing metadata. I don't use personal geodatabases because of a limitation with them I have since forgotten. I am using 10.2 on my own laptop and one of the lab workstations, and neither is producing geoprocessing metadata. If anyone out there IS getting geoprocessing metadata on 10.2, I would love to hear about what you did or didn't do. Thanks. Dave
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12-27-2013
05:33 AM
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Is history logging enabled? See Viewing tool execution history Here's a snippet from that doc: [INDENT]Enabling history logging To enable the writing of history log files, do the following: From the Standard toolbar, click Geoprocessing > Geoprocessing Options. Enable (check) the Log geoprocessing operations to a log file check box. [/INDENT] I do have the geoprocessing "log geoprocessing" box checked. Thanks. And results are being written and saved to a history file in AppData. The history files won't do me much good in the student lab because the C drive is frozen, and files won't persist day to day. I really meant to ask about the geoprocessing history METADATA in the first post, but didn't say it explicitly. Dave
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12-18-2013
04:12 PM
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This is late in the game, but the next time you need to create multiple buffers, don't use the buffer tool. Instead, use the "Euclidean Distance" raster tool and then either reclass the distances or use a nested "con" statement to transform unique floating point distances into discrete "zones" that don't overlap.
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12-17-2013
05:41 PM
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A recently installed 10.2 version doesn't produce geoprocessing history in new files or files created from 9.3-created files. I need to have this option for a 25 student lab so that I can follow their process. In the Customize/options tab, I have tried it with the "update" option check and unchecked, and tried it with several metadata types other than Item Description to no avail. Is 10.2 different from 10.1 in the automatic inclusion of the history in the metadata ? (it wipes out previously existing geoprocessing history as well) UPDATE (13/12/18): Tried editing the metadata for newly-created Raster dataset and a feature class in a newly created file geodatabase. Neither has any Geoprocessing information from the tools used to create them. If I have had 9.3 installed on my laptop or on the class lab machines, do I need to find and erase all the "ESRI" AppData? Could this be a source of the problem? Thanks David
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12-17-2013
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2 | 03-09-2018 02:13 PM | |
1 | 06-25-2018 11:38 AM | |
3 | 07-21-2017 12:15 PM | |
1 | 12-31-2013 03:42 AM |
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