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How to separate details by color from raster? Is it possible in ArcGIS or any other software? I have tried Spatial Analyst. I want to use RGB .tiff image which is scanned map. It consists of all the details having different colors. I want to separate all details like roads, railway as they...

Is it possible to direcly connect to ESRI 10.3 database using geotools ? I use geotools 13.0 and have ESRI database set up on oracle. Previously I was able to connect to SDE using gt-arcsde-plugin but since ESRI 10.3 there is no SDE service. Whats more, there is no jsde_sdk.jar provided which...

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I figured out that I can use field calculator on a single column in ESRI arcgis 10.3 attribute window as follows: def RemoveNULL(x): if x is None: return '' elif x == '': return '0' else: return xRemoveNULL(str(!myxField!))What I really want to do is find a way to find...

Using the hillshade tool (Arcmap 10) on a 30m SRTM raster downloaded from NED the result is the one in the picture. Why are there those crossed lines all over the raster? How could I remove them? Thank you,Michele أكثر...

There's a longer explanation of why I'm interested in this below, but in short, I'm wondering how to run something like a k nearest neighbors formula, with the number of groups determined by a maximum total characteristic(perimeter) in each group. This is part of a cutesy project a friend and I...

How do you update NULL values within a geodatabase table using the ArcGIS Field Calculator (service pack 4) without changing other values to NULL? I've tried the suggestions on this previous question: How do you test for a NULL string field in the Field Calculator with Python? When I run the...

The exhibits at GEOINT Symposium 2015 this past week in Washington D.C. reflected the direction the government is heading with regard to new products, technologies and services. The new government initiative of doing more with less has generated interest among a group of vendors in partnership...

How do you think the shift of line is due to morphological change of river? Or it is due to deviation between two coordinate systems?Please point out !! أكثر...

I am trying to set up an automated process that does a nightly extract of the network dataset from SDE and publish to: ArcGIS Server 10.3 as a network service fGDB as network dataset It seems you can't dissolve a network dataset in SDE so you have to move it to a fGDB. Ideally I would have...

I see a lot of threads asking how you can create a separate Python installation (e.g. the Anaconda or Python XY distribution) that can use arcpy, while not 'breaking' the original ArcGIS python installation. I had this same problem, and I think I have found a 'universal' solution. So far we...

I've been using Maxent to run a model, the program produces multiple output files except the html file, the map pictures and the distribution map or raster file (.asc).Does anyone know why this could be happening? أكثر...

I have a text field, field1, that's populated with 14-digit identifiers, like "01234567890123". I create a new field, field2, that I want to show the first four digits of field1. I would like to do this using arcpy. أكثر...

I would like to fanout file geodatabase on an specific attribute by using generic writer with Dynamic schema. I know how to do this when not using Generic Writer, so I assumed that principle will be the same. What I get now are fanout folders comprising of fanout fgdbs, rather than only fanout...

I'd like to just confirm that a problem I am having in QGIS 2.10 is not unique to me. I am using the Layer Order panel to control the rendering order of layers in my projects, it's very useful when working with lots of layers. However in QGIS 2.10, when I move a layer it does not change the...

We recently made significant changes to our SDE database setup by splitting our original database into five databases and renaming most of the feature sets. Right now I have a script that opens all the MXDs on a network drive, searches for SDE layers in each MXD, and changes both the source and...

I've got a small Collector app with 6 feature classes that we've enabled for offline use in a 10.3.1 environment, but we're not able to download it. The error we receive is "Map Download Failed. Unable to complete operation. Bad syntax in request." This error occurs on both Android and iOS...

How do I install the r.inund.fluv script in GRASS? https://svn.osgeo.org/grass/grass-addons/grass6/raster/r.inund.fluv/ أكثر...

Scientists use Landsat and commercial satellite data to quantify the losses in this mid-latitude glacier belt. أكثر...

on arcmap: i have tried lining my data frame coordinate system to the WGS 1984 World Mercator position but still will not align to basemap when I publish to ArcOnline. am i missing a step here? أكثر...