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I have a google map that I am populating with real estate listings from a database. I have set it up to refresh the listings when the map is panned or zoomed. I am using the dragend & zoom_changed events to accomplish this so that it is not automatically triggered when the map shifts to open...

I have a string field that I want to convert into a date field. The problem is that some dates are incomplete (ex: "-/-/1967"; "1/2/-"). So is it possible to have in the same date field complete dates and others incomplete? أكثر...

In this tutorial for Adobe Illustrator CC, David demonstrates how to create a subway map effect using the pen tool and strokes. أكثر...

On Thursday morning, July 23, 2015, an important technical workshop will be presented at 8:30 am to 9:45 am in Room 10 of the San Diego Convention Center. It’s title is Reimagining GIS: Geographic Information Society. Session presenters include: Clint Brown, Linda Beale, and Mark Harrower, of...

Any recommendation for moving the applications/items between ArcGIS Online accounts? I was trying to use ArcGIS Online Assistant, which uses the ArcGIS REST API to provide items migration, but it will break the links and content becomes lost by using this tool. thanks! أكثر...

I'm using QGIS 2.8 on a system running Windows 8.1 (x64) with 12GB of RAM. I am attempting to run analyses of a very large database (.gdb format, 7.17GB). In attempting to run the "Join attributes by location" function on two vector layers, I get an error message of a minidump to C (i.e...

I'm trying to find a way to determine pipeline connections located downstream a critical facility and score how far those connections are from the facility. Any Thoughts? أكثر...

32-bit ArcMap is not playing well with 64-bit AutoCAD Map أكثر...

I´m trying to extract DEM and DTM from a LIDAR file. I just rasterize the image but then I don´t know which algorithm I need to apply to obtain the DEM and DTM information in different models to be able to compare both of them. أكثر...

In QGIS (or alternatively any other scripting + GIS stack), how can I automate drawing a 100km x 100km square around a number of points, with the point being dead in the center? I'd need to loop through all the points and create a polygon, but not sure what would be the automated way of doing...

Is there a possibility to load .adf files to Quantum GIS? أكثر...

City of Miami — GIS Land Development Application Tutorial GIS Land Development Application provides users with a variety of information and visual aids. أكثر...

Summary: Hawai‘i, the name alone elicits images of rhythmic traditional dancing, breathtaking azure sea coasts and scenes of vibrant birds flitting through lush jungle canopy. Unfortunately, the future of many native Hawaiian birds looks grim as diseases carried by mosquitoes are due to expand...

Esri’s*Living Atlas of the World*provides an amazing source of information for you to create maps and mashups, publish apps, and perform geographic analysis. Most of the layers in the Atlas*are free to use, but some high-quality layers published by Esri’s Content Team are designated...

I have a question concerning the data. Are nodes that are tagged as traffic_signals expected to be part of a way that is a k="highway" itself? أكثر...

i'm using the search widget with a with linear element. When i do a spatial select or search by field the result appear in table but into map the element are not selected.I have this problem only with service that have polyline element and not for point layer.I notice that i have this error in...

I am trying to join a polyline feature class and a polygon feature class. The polylines will always have at least their first point in a polygon, and each polyline consists of exactly three points. There is a chance of the last point of the polyline being in another polygon, but I do not want to...

this is my first time here. I just need to get a neighbourhood/locality name, to get it I have the address and postal code (all over Argentina). -no polygons needed- This is to change a background image acording to its neighbourhood/locality, this does not need to be a 100% accurate about...

I'm using GDAL on a project to view RPF (A.TOC) format of CADRG based imagery. I see how opening the "A.TOC" results in a dataset with many sub datasets. What I want to do is programmatically (on the fly) merge several of the sub dataset into one new dataset so that when the user pans the...

Ok, so technically the ArcGIS API for JavaScript 4.0beta1 isn’t a final product, but it has some really nice features that users and developers should really enjoy and be excited about. Yeah yeah, 3D, cool and all and I’m sure you’ll hear plenty about it. But I want to talk more bare metal. I...