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Does anyone know how to find the path to a feature class within a label expression using ArcGIS? I don’t need to simply display the path. My overall goal is to create a python function to display x,y coordinates directly from the Shape geometry, as shown in this answer. But this code will...

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I am new to GIS technologies and I wonder how to add a layer with city names to the QGIS project. I have two layers: (1) Base cartography that is a map without any labels, (2) Delimited text layer that shows some points on the map. I assume that I should add another layer, but I don't know...

As you know GeoTools uses OpenGIS declared APIs; BoundingBox and Envelope for example. picture from geotools docs. BoundingBox Represents a two-dimensional envelope. This interface combines the ideas of GeographicBoundingBox with those of Envelope. It provides convenience methods to...

I want to create a single bounding shapefile polygon of valid pixels in raster data (GeoTIFF) using python. I need something efficient as I need to do this for hundreds of rasters. I had thought of writing out a mask using simple numpy manipulation, then passing that to gdal_polygonize.py...

How and Why is a Panchromatic Satellite Image associated with high spatial resolution? I googled and found that it is a single band image, but then why is it called pan-chromatic(All Colors). Does it mean it covers the entire visible region? أكثر...

I have created a python script that batch summarizes all string fields within a fc table based on the concatenation of two fields. The script loops through a list of the fields, however it stops about halfway through (same spot each time). Why does this code not process the remaining string...

TELEMAC-MASCARET is an integrated suite of solvers for use in the field of free-surface flow. Having been used in the context of many studies throughout the world, it has become one of the major standards in its field. In computational fluid dynamics, TELEMAC is short for the open...

I am looking to apply a Select By Location protocol to my data, but need to first query individual IDs in my target and source layer (the same ID in each table, one at a time). How do I loop through a query? I have far too many IDs to manually set a query in each table then perform the...

I have a feature class of polygons within a geodatabase and I'm trying to generate points based on the centroid of the polygon using the Feature to Point tool in ArcGIS 9.3. However, I end up with several points that fall just outside of the polygon. Is this the wrong tool to be using for...

salut chers amis, je dispose de données de débarquement annuels en tonne dune espéce de poisson de 1988 à 2014, serait-il possible de de faire une représentation sur carte de ces données avec le logiciel qgis pur montrer la variabiloté des débarquements. merci أكثر...

ان شاء الله سوف أراجع الطبيب اليوم لحدوث نزيف فى الجهاز الهضمي فأرجو ان يكون المرض ليس خطيرا إن شاء الله تذكرونا بالخير اخوكم مختار الحسانين ... أكثر...

I keep getting poor image quality after exporting (high DPI) from de map composer in Qgis. The original Geotiff is 254 DPI and has great image quality (smooth lines). After opening in Qgis en exporting from Map Composer, the lines are jagged. Best quality with PDF, But still not good enough. Is...

I'm learning how to perform atmospheric correction manually, hence not using the automated methods available in ENVI metadata (band 1) for my Landsat 8 scene is as follows; RADIANCE_MULT_BAND_1 = 1.2344E-02 RADIANCE_ADD_BAND_1 = -61.72016 REFLECTANCE_MULT_BAND_1 = 2.0000E-05...

I had a question as to the possibility that when you add a layer via csv like the following if it was possible to include a loop through the markers folder to grab the next marker as the point is added from the file? So as an example the first point would be marker NumberIcon1 and the next point...

I am using openlayers 2 for making clustering on vector point data for which I am a beginner. I have installed geoserver locally via opengeo suite and using 'world_cities' dataset as an example. I have been able to implement simple cluster strategy. Now I want to display count numbers on each...

The code below was working, but now it is not. This isn't my actual production code, just my KML test document to make sure everything is working. I got this document as a working example from stack exchange. I saw it working earlier today and yesterday. There is a div at the bottom for the KML...

Based on How to export a set of layers into multiple PDF(orAI)files, one layer at a time? I was able to alter and execute code that is trying to export 30+ layers from an MXD I have. import arcpydef turn_off_layers(mxd, df): for lyr in arcpy.mapping.ListLayers(mxd, "", df)...

I am writing a console application using ArcGIS (engine or desktop). I'm trying to rotate and scale a map based on a polygon, and I'm not having any luck at all. With some tinkering, I can usually do one or the other but not both. Anybody have any suggestions? I feel as though I've tried every...

Esri's interactive 3-D globe shows where and how large earthquakes were in any given year between 1900 and 2015. أكثر...