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Esri is pleased to offer three days of hands-on workshops as part of a Mapping Lab at the*upcoming 100th National Conference on Geography Education. *Staff from the Esri education group as well as some of our dear friends in geography education will be on hand to teach a series of first-come...

Emma Alberici from the Australian Broadcasting Corporation speaks with Craig Fries, the founder and chairman of Precision Simulations based in California, who has created or directed over 1,200 3D... Click Title to Continue Reading... أكثر...

I had to extract the longitude and latitude from a s57 file, in order to superpose a satelite view from the same point. These coordinate will allow me to get the exact position on google map by exemple and create a raster from it and supperpose it to the mapcanvas of my map any idea on the...

I've been struggling to link a feature of 450 municipalities and approximately 60,000 fires that have occurred over the last 15 years. I've attempted to make a relationship class. I can see the individual events when I query a municipality but I cannot symbolize based on, perhaps, graduated...

from PyQt4.QtCore import QSettings, QTranslator, qVersion, QCoreApplicationfrom PyQt4.QtGui import QAction, QIcon, QFileDialog Initialize Qt resources from file resources.py import resources_rc Import the code for the dialog from Import_tool_dialog import ImporttoolDialogfrom functools...

I have a shape file with only one field DN. I would like to delete all features which does not have specific value of the field. Let say the DN can be 1,2 or 3. So far I was able to find out how to select Features and how to delete feature, but I did not succeed to combine them. Let say I want...

I have a list of X,Y coordinates from a csv file, that represent a polygon. I´m trying to create a Polygon-Shapefile from this list. I´ve been trying around and found a possbility to write the list to a Point-Shapefile. Unfortunately that is not enough for me. Is there any way to get the...

Link: http://effigis.com/obtaining-millimetre-precision-using-satellite-sensors-science-or-fiction/ Precision is a rather sensitive subject in geomatics: talk about it to a surveyor or a GIS specialist, and you better be armed with the right arguments to convince him to change his measuring...

Hi Guys, Somebody of you have good tutorials for pgRouting? I'm waiting patiently the publication of that book HERE, and I'm facing issues to understand how to setup that stuff. BTW, I'm based on windows for that. Thank you in advance. darksabersan. أكثر...

I have multiple file geodatabases (approximately 240) each contain a DEM. My issue is taking the DEM from each and putting it into a single file geodatabase without alot of mind numbing work. Additionally the DEMs from each geodatabase is labeled DEM1. Thanks in advance for the help...

I have a map that is coloured with a legend of physical values (elevation) associated with the different colours. Is there a way to digitize this map and yield the actual elevation values (instead of pixel values) in ARCGIS? If not, is there any way to go about doing this? أكثر...

When I download a large map within R (using the openstreetmap package) and I reproject the map (ideally to +proj=longlat - or at least I think I need that for my plot later on, prove me wrong), the map will always turn out distorted, making country labels etc. near the poles illegible. Is there...

How might one export image(s) from image overlays in a KML file to a standard geo-referenced raster format like geotiff? Use case: NASA's Earth Observatory has a time series of the changing Athabasca Oil Sands, (kml). It's hard to get a personally meaningful sense of scale from the line scale...

Bonjour, J'aurais voulu savoir s'il y avait possibilité de changer le symbole par défaut qu'utilise Arcgis lorsqu أكثر...

We did an interview with the Orange County Public Works about their Monument Inventory project. Their Geodetic Unit is responsible for maintenance of the Horizontal and Vertical control networks. Responsibilities include updating, revising and distributing the most accurate and current data...

I have a PostGIS table with 2M rows, all Points. I'm creating tiles from the data, but it's quite slow. Although I have the normal geometry indexes enabled on the table, I wonder if it's possible to index better according to tile boundaries (which are alwayws the same). Or is the normal...

I have a feature class that has over 1500 points in it. I then need to create line segments from these points based on an ID number. For example points 1-6 have the ID 1, points 7-12 ID 2 etc. Each point has an easting, northing and elevation and PointID that I want to keep as attributes in the...

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I have a linestring table and a point table in postgis. I know the closest line to any given point.What I need to know is on which "side" of that line is the point.I guess I have to do that by creating a perpendicular line from given point to the line (closest point on the line) and then...

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