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I want to be able to write pixel values of each pixel falling under a polygon onto a polygon attribute table or a CSV. I have about 1200 polygons and a georefernced GeoTiff file with NDVI values. While I understand there are many tools available to calculate zonal stats and I have tried zonal...

I would like to use the pyflann module for nearest neighbor search show like here: http://pythonhosted.org/laspy/tut_part_1.html . I have a python 2.7 for ArcGis. Unfortunately the installing guide is not clear for me and I have problem compiling the package (the Laspy is installed with pip...

I need a method, tool, module, anything that I can use in python to find the nearest neighbor of a point in a LAS dataset. Less than that I only need to find the closest point to an X,Y coordinate. I already tried to install the pyflann and cyflann, but I've been constantly encountering...

Esri app lets you explore beer consumption in your area and discover other communities with similar tastes. أكثر...

Esri app lets you explore beer consumption in your area and discover other communities with similar tastes. أكثر...

If you have been looking for an extra incentive to purchase 3D laser scanning hardware this recent announcement from Leica Geosystems of a financing program may be just the ticket. The press release... Click Title to Continue Reading... أكثر...

السلام عليكم ورحمة الله وبركاته كنت شرحت قبل كدا درس (http://www.arabgeographers.net/vb/threads/arab16300/) عن كيفية حساب معدل النمو السكاني فى... أكثر...

لقد قمت برسم شبكة الطرقات لكن بعد انشاء ملف geometric network تبين وجود error type 11 : لعدة طرق وقد قمت بالبحث عن معنى الerror فتبين التالي : Error... أكثر...

I have a leaflet map which display pop-ups that give the name of a country when clicked. How can I add additional properties and have them all displayed, similar to this map http://lotrproject.com/map. For example, how can I make my Iceland pop-up feature display the properties for "name"...

I am new to GIS area and also new to any software that can modify the GIS. I am currently working with South Australia map I have download from Australian census site. I am using QGIS to load the shapefile and also do any modification. Here is a link to download the geo datasource from...

I have few GPS tracks with lat long and timestamp. I want to present them on a map and to show how the movement took place using the time series location values (X,Y,T). I searched a lot but could not find any suitable map visualization technique for moving objects. Cartodb offers visualization...

Built with Esri technology, CentreStyle is an app which helps make location-based recommendations on clothing based on the weather. أكثر...

Built with Esri technology, CentreStyle is an app which helps make location-based recommendations on clothing based on the weather. أكثر...

Built with Esri technology, Entangled is an app designed to create connections among strangers anywhere in the world. أكثر...

By using GIS data, USGS' maps are updated every three weeks. أكثر...

Was the plume that emanated from Tanzania's second-highest mountain caused by fire or volcanic activity? أكثر...

Was the plume that emanated from Tanzania's second-highest mountain caused by fire or volcanic activity? أكثر...

Have been working with the ESRI's Data Reviewer Extension to identify unnecessary nodes. The "Unnecessary Nodes Check Properties" dialog implies that the result return (1) a node (if topology exists) or (2) a polyline (info topology exists). I can't seem to get the dialog to return nodes only...

I try unsuccessfully to install the ECW support (mainly to use ECW file in QGIS 2.2). We attempt to follow and adapt the howto provided by makina-corpus. My first supprise was the repository ubuntugis-unstable is unavailable for trusty and the repository http://qgis.org/debian doesn't have...

A video lecture designed for teaching at the Rochester Institute of Technology (RIT). it take a tour over the Maps and Represenation أكثر...