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    PostGIS query to retrieve the largest polygon for multi-polygons by grouping on attri

    I'm working with the Natural Earth 10m Admin 1 States Provinces polygon data. This dataset contains multi-polygons for each state / province in the entire world. What I'd like to do is to grab the largest polygon for each state / province, then create a centroid that is inside that polygon for...
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    edit multiple point raw descriptions in Civil 3d

    Is it possible to edit multiple point raw descriptions in Civil 3D 2014 أكثر...
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    GIS app basic workflow questions [on hold]

    I'm trying to create an application that allows the user to view and toggle/edit layers on the client-side. The problem is that I couldn't find any documentation to explain the basic concepts and how all these technologies interact with themselves. So first of all I would appreciate any links...
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    Calculate employment density using LEHD Census Data in ArcGIS

    I have data from the Census Bureau's LEHD files that record number of jobs within blocks groups. I want to convert the number of data in the LEHD into a feature that I can use to calculate block density of the density of jobs in the block groups. How do I do that? I have read something about...
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    From ArcMap ModelBuilder to Python Script

    This is a brief demo showing how to build an ArcMap ModelBuilder model, export it to a Python script and then edit the script to make it run. أكثر...
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    [GeoTools 2.x] Projection d'une image

    Bonjour, Dans le cadre d'un projet en C# je cherche à reprojeter une image jpeg. Il semble que les outils GeoApi et GeoTools doivent me permettre de réaliser une telle tache mais je n'arrive pas a trouvé d'exemple pour me guider. (Je débute sur le sujet). Quelqu'un peut-il me conseiller...
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    [QGIS 2.x] Mettre a jour colonne à partir d'atribut d'une autre couche.

    Bonjour, je souhait mettre à jour une colonne, les infos à ajouter dans le nouveau champ se trouvent dans une autre couche, je souhait les exporter en quelque sorte vers la nouvelle couche. je suppose que cela se fait par la calculatrice de champ, mes je ne trouve pas la bonne expression...
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    SPOT Satellite Pour l’Observation de la Terre

    SPOT-1 (Satellite Pour l’Observation de la Terre) was a French commercial satellite launched in 1986 initiated by the French Space Agency (CNES). The post SPOT Satellite Pour l’Observation de la Terre appeared first on GIS Geography. أكثر...
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    Custom Infowindow Image Height in CartoDB

    I have a problem in CartoDB Where I want the Infowindow's embedded header image to have a minimum height to allow for off-the-shelf images from a journalist. I've started with the gist of javisantana/6696187 (I'm not able to post a third link), which allows me to change the height of the...
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    How can same script work in ArcMap python window and fail when executed in different

    I have a simple python window script: mxd = arcpy.mapping.MapDocument("CURRENT")df = arcpy.mapping.ListDataFrames(mxd)[0]sr =...
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    Struggling with in_memory to erase faster

    I want to delete all points inside a polygon layer: import arcpyimport timearcpy.env.workspace = r"E:\DensityMaps\DensityMapsTest1.gdb"arcpy.env.overwriteOutput = Truestart_time = time.time()arcpy.Erase_analysis("Test_Points_Project", "Europe_coastline_NoLakesRivers", "PointsPolyErase1")print...
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    مجلة: le Gharb un territoire à l'épreuve du changement climatique

    صدرت عن مختبر Ruralité بجامعة بواتيي بفرنسا بشراكة مع مختبر البيئة والتنمية وتدبير المجال بجامعة ابن طفيل مجلة إليكترونية خاصة بمنطقة الغرب تحت عنوان: le Gharb un territoire à l'épreuve du changement climatique. وشارك في هذه المجلة مجموعة من الدكاترة والأساتذة الجامعية منهم أساتذة بجامعة ابن...
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    Fun with GIS 180: Esri K12 GIS Org

    School’s open! Just in time, Esri’s ArcGIS Online Organization for K12 GIS has grown stronger. The front carousel sports easy access to intro documents, lessons, maps and apps, and videos. (Scroll right for specialty items.) Contents are curated and organized to help learners of all kinds find...
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    IHEEP 2015 – Dots for DOTs

    I’ll be presenting at the International Highway Engineer Exchange Program or IHEEP 2015 conference next Monday in Pittsburgh PA. The title of the presentation is Dots for DOTs with the topic... Click Title to Continue Reading... أكثر...
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    راه حل

    با سلام چگونه در جدول attributes دو رد أكثر...
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    Is there a API which return the geojson data for a countries borders?

    Is there a simple free REST API where I can send the name or code of a country and get in return geojson data which highlights it's borders ? I'm writing an application where I will have a changing list of countries and I have to outline their surface/borders on a openlayers map. I've...
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    [QGIS 2.x] mettre a jour colonne à partir d'atribut d'une autre couche.

    Bonjour, je souhait mettre à jour une colonne, les infos à ajouter dans le nouveau champ se trouvent dans une autre couche, je souhait les exporter en quelque sorte vers la nouvelle couche. je suppose que cela se fait par la calculatrice de champ, mes je ne trouve pas la bonne expression. ...
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    [Emploi] CDD 2 mois, Administrateur applications web (INRA)

    *Administrateur applications web pour la gestion de métadonnées* 1. *CDD 2 mois, à partir d'octobre ou novembre 2015* 2. *Contexte* L'INRA (Institut National de la Recherche Agronomique, _www.inra.fr (http://www.inra.fr/)_), développe des systèmes d'information (SI) pour la... أكثر...
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    Spatial correlation using QGIS?

    I'm looking into performing a spatial correlation test of 2 matrices to see where they overlay. To do so I need to create a grid layer of 2.2km2 around the coordinate points. I've tried the vector - research tools -vector grid but the parameters are in XY, while the UTM locations set to WGS84 -...
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    Is there any way to extract data from Google Earth Enterprise Server?

    I have a GE Enterprise server to extract data from. Now i download a kml from a website and open this kml in google earth which loads data from Google Earth Enterprise Server. KML link is link Is there any way to extract data from Enterprise server? أكثر...
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