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I'm trying to do something like this SQL query in Geoalchemy2: SELECT district_polygons.district FROM markers, district_polygons WHERE ST_Contains(district_polygons.multi_poly, Point(markers.marker_long, markers.marker_lat))This query works great as is in MySQL. This shows me which district...

Summary: For salt marshes, hurricanes are just another day at the beach. Waves from moderate storms, rather than violent events such as hurricanes, inflict the most loss on coastal wetlands. Contact Information: Neil Ganju ( Phone: 508-457-2252 )...

I couldn't find very specific information about plotting in the forum, so I post it here, it can be useful especially for beginners. أكثر...

Okay, first let’s get the obvious thing out of the way. The internet was invented*to share cat videos and images. Everything else is by accident. Period! (Although, dogs would have been a better reason to do so, well thats a debate for another day). Majority of the apps that we use today...

This past couple of months marked not one, not two, but three releases for the ArcGIS API for JavaScript. You had 3.15, 4.0beta2 and then 4.0beta3. These releases have introduced Vector Tile Support, new Popup and now with 4.0beta3 release, View Models. What is a View Model Since 4.0beta1, we...

Last week we’ve reported that FAA*announced a new rule that orders drone owners to register and get a special identification number. Just in time for the holidays… Today the registration website is finally on (although it crushes due to high number of visitors). Don’t be afraid if you still...

Updates to the Streets and Topographic Maps Available! This release incorporates new and updated content to the*World Street Map*and the World Topographic Map*for federal lands, cities and counties in the United States, and select locations in Australia, Canada, and South Africa. This*Story...

I am hoping to map vegetated (trees and open veg) for the lower mainland in BC, Canada. I guess what I want is a Land Cover map. Does this exist for download anywhere or will I need to user Landsat to create an NDVI and do it myself. ~30m resolution is adequate. currency is not a huge...

I have the following block of code: cursor = arcpy.da.SearchCursor(fc,"FMapZone")for row in cursor: arcpy.Select_analysis(fc, fc + "Zone" + str(row[0]), "'FMapZone' = " + str(row[0]))And it gives me an error, ERROR 000670: output Output Feature Class is same as input Input Features. Table...

I have been using this software for years and have never had a layout do this before. I think I accidentally clicked something and now all my active layout items are greyed out as if I paused them, like pausing the loading of a dataframe. Legend, dataframe, north arrow, and scale bar are all...

I'm trying to understand the behavior of a single laser pulse in a traditional airborne lidar.I understand that the multiple return values are representative of the surface that reflected the initial pulse. However, does a single pulse from the laser return each reflection individually to the...

Uploading .kml file (waypoints) to a GPS أكثر...

My datasource is PostGIS, but I need to build the query on the fly based on user-supplied filters. Obviously I don't want to create an SQLI vulnerability, so I'd like to parameterize my query, e.g., "WHERE field1 = ? AND field2 = ?". I see no way to do that in the documentation. Is this...

Hy all, I am exporting a raster file (tiff) in arcmap as a png/pdf. But no matter how much I increase the dpi, the exported map looks smoothed version of the original images in my map. Any help please? أكثر...

Does anyone know how to convert a .lyr to .shp format in ArcMap 10.2? I had a look at different forums on the internet and most people suggest that it works by right clicking on the layer in the TOC and export the data as shp, but apparently this is not true because the file extension is *...

Have you ever wanted an easy-to-use map of countries around the world? You don’t have to be a GIS guru to make maps*with Esri Maps for Office – an add-in that provides the mapping power of the ArcGIS platform within Microsoft Excel and PowerPoint (if you don’t have it yet, you can get the add-in...

I'm trying to utilize the extractSubdataset_management tool on a large set of GRB files. Each GRB file has a different number of subdatasets. Is there any way to execute this tool on all subdatasets contained in each GRB rather than specifying the number of bands? أكثر...

CMV - Configurable Map Viewer - I would like to implement the search feature from the places textbox to search a field of one of my layers in addition to the places search. This esri example shows searching places and senator names as you type...

I need to append two shapefiles together. The append tool works within the ArcMap toolboxes AND Python window, but it does not work when copying over the python snippet to PyScripter. It'll completely run through but won't produce values within the fields (all values will be empty or null)...

Summary: A Piper Navajo airplane with auxiliary wingtip pods and tail stinger magnetometers will study the rocks within the St. Francois Mountains in southeast Missouri. A high-resolution airborne survey to study the rocks within the St. Francois Mountains will be conducted by U.S...