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I need to extract the acres from the legal description. I have tried "(!Legal!.split(" AC")[-1])" but it gave an error. I am using ArcGIS 10.2 using python in the field calculator. Any thoughts? أكثر...

I want to to use an arry to create 3 buffer files with different buffer distances. So that the code should produce 3 buffer files in one step. The code below runs already after used an Arcgis Add-in but I have no imagination how to build in the arry and to save this 3 different buffer files...

Digitize a cartographic map - Produce a Digital Elevation Model - Generate an orthographic image from aerial images and Drape it into DEM - Building footprints - Turn the footprints into 3D buildings primitive models - Export the model generated in 3d format that can be used in 3D modeling...

I want to get a geocoding system based on osm data and elasticsearch engine. I've tried some projects like komoot\photon, but, as I a really newbie in this, I stuck on preparing of the data for my area and many troubles with a Nominatim server. I could be using the whole world dump of indices...

I am attempting to replicate the process of creating digital elevation models from raw LiDAR data and have been provided with LAS files covering a ~530 square mile county area. However, I only need to work with about 1/4th of this coverage, which is still at least 30+ las files. What is the...

Watch a free online seminar on August 13 to learn how to build tasks that efficiently step through the detailed process required to complete and reliably repeat your GIS workflows. أكثر...

Geo-matching.com has recently addedLeveling Instuments to its broad spectrum of product categories. Spectra Precison is the first supplier in this category with the DL-15 Digital Level. In addition to general specifications, detailed information is given about accuracy and performance and...

I have created a table with some derived data in SDE using sql server. The following is an example row of the table: OBJECTID GEOID STATE COUNTY TRACT NAME LSAD CENSUSAREA SHAPE SUM_POP10 SUM_ALAND SUM_AWATER SUM_LandPlusWater AreaDif PerCha PopDen699...

I have a cloud mask shapefile that accidentally identified buildings as clouds. I want to delete this mass of polygons in Arcmap 10.1 by highlighting all of them and pressing delete. Then re-saving the shapefile. Right now I can only highlight one at a time through clicking and pressing...

I rendered a US map using d3.js with the mercator projection. On top of the map, I placed circles using the centroid of the projected path. The placements were perfect. Also, I had implemented d3.drag() behaviour on the map which seemed perfect.Now, my client requested to use the albersUsa()...

I am working with qgis api c++ 2.8.2, in c++/QT 4.5I try to save my List of QgsField but I have the error message :no matching for call to 'QgsVectorFileWriter'I took the sample from here : http://hub.qgis.org/issues/7223 Here is my code in C++ QList lMyAttribField;QgsVectorFileWriter *...

I'm working on a project which aims to use geographic data to generate a 3D virtual city model and exploit it to create a video game.Since I'm not expert in Geographic Information Systems, my question is : What GIS I should use in order to achieve those tasks- Digitize a cartographic map- Use...

I am running GeoServer 2.8 on Ubuntu 14 as a WAR in Tomcat 7. I have an 8 core machine with 16GB of RAM and have allowed a generous Heap size of 4GB. I have JAI installed and enabled. Meta tiling is set to 8x4 and I have allowed 3GB for rendering so memory should not be a problem. I have a...

Translated from Google: When using gps garmin 78s when you want to save waypoint can not, on the screen appear the words gps data base error when saving trak but can be done , please prompts. Thank you. Ketika memakai gps garmin 78s sewaktu mau menyimpan waypoint tidak bisa, dilayar gps muncul...

I have two data sets.One is points in the blue curve. The other is points in the green curve. Now I want to find a property (P) or something else like index that has the following characteristics: It represents the similarity between two data sets.(With similarity I am referring to the same...

My question is about qgis 1.8 georeferencer plugin.I installed the new version qgis 1.8 but I don't have the georeferencer plugins, how do I install it?I used the georeferencing plugin with QGIS 1.6 and now that I've upgraded to 1.8 I'd like to do it again.it's not available! Am I doing...

Bonjour, Tout d'abord, toutes mes excuses si je relance un sujet qui a sûrement déjà été abordé (j'ai notamment trouvé ce sujet (http://www.forumsig.org/showthread.php/32527-QGIS-1-6-Import-de-dxf-sous-QGIS-via-GRASS-sans-perte-de-couches-et-de-donn%C3%A9es)) mais mon problème est d'une part...

“The report of my death was highly exaggerated.” It turns out Mark Twain never really said the quote like this. But that doesn’t really matter. The quote retains its meaning. For a utility professional like myself, Twain’s insight reminds me that though many are speculating on the impending...

The District of Columbia is using airborne lidar data to automatically identify trees that have been illegally removed by landowners. Trees are needed to process carbon gases which can improve air... Click Title to Continue Reading... أكثر...

Corn growing just steps from the National Mall. by Jennie Saxe On a sightseeing trip to Washington, DC, my family and I observed two unexpected sights, just steps from the National Mall: a busy farmers market in some valuable downtown parking spaces and huge stalks of corn growing in a small...