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2 years ago, this question was posted here at Gillies's blog, on date of 2009-05-15. Future for geospatial on App Engine? At that time there was no news relating to any apps of GIS web services using Datastore (Google's App Engine). Is there any new information on GIS and App Engine...

I have a dataframe named seoul315 contains the 107 data of PM10 concentration at 1 march,2012,5.00 am. please, download. I have tried to plot semi-variogram for kriging bt the following code: library(sp)library(gstat)library(rgdal)seoul315

For the purpose of saving the data locally from a feature server online I have written code below: import arcpy fcout = r'C:\Forum\Hydrants\test01.shp' url =...

I have 13,086 points and 1,034 lines that go from each point to a polygon. I am trying to figure out a way to get a line the that goes from each individual point to the polygons along the lines I already have except with one individual line object for each point which would result in 13,086...

I have an issue to enable alpha channel in arcgis image service. Image service published from a mosaic dataset in sde DB. The image files are geotiff images with 2 bands. First band supposed to be grey value and second - alpha channel. I use extract band function (with parameter "1 1 1 2") in...

Is it possible in QGIS to split a line into segments given which polygon it falls within? I am using 2.8. For example, a line that passes through three polygons will become three separate lines. Each time it crosses from one polygon into another it'd become a new line. So in this case, where...

I created an OLE DB Connection in ArcCatalog Database Connections. If I right click on one of my db tables I can "Create a Feature Class > From XY Table" and continue with my data processing. However, if I try to incorporate this step into a geoprocessing model (ModelBuilder) I can't seem to...

I've tried to set the url from an icon but without success. In fact, I've been searching in Openlayer API but I haven't seen any method to set it. In OpenLayer 2 I've seen that It's possible. I want to able to change the url in the time. Do you have any idea? أكثر...

I have a polygon shapefile of parcels with 2 fields that give a low and high address range. I would like to relate this to a point shapefile that has a specific address field for each point. The Addresses are homogenized strings in both files, I just need a way to relate each parcel address...

The Deep Space Climate Observatory has captured a unique view of the Moon as it passed between the spacecraft and Earth. أكثر...

I have a CSV of Ground Control Points in NAD83 UTM 12N and I need to convert them to WSG84. Is it possible to do this with gdalwarp or something similar? أكثر...

In ArcGIS it is possible, via raster mosaics, to choose the raster order depending on various methods. One such method is the center method. The raster that is closest to the coordinate of the center of the current view is on top of all other rasters. This is great when one has a case of...

I found this posting about an ElasticSearch Toolbox for ArcGIS: http://pfreydiere.free.fr/work/Search/readme.html I can't find the actual toolbox to install in ArcCatalog. Does anyone know where this is located, and if there is an English version? أكثر...

Hi I would like to simply calculate areas of a area-shape file in square meters or in acres (ha). I didn't find that functionality in the vector tools. Could anyone here help me with that? أكثر...

Every major tech company in the world has an office in San Francisco and the reason is obvious. What if these startup companies got their way with the local government and were allowed to rename the streets of San Francisco?*What if San Francisco renamed its streets after Startups? How would...

دراسة التغير في الغطا الارضي لحوضي وادي عربة والبحر الاحمر خلال الفترة 1987-2002 واستخدامات الارض لعام 2002 باستخدم الصور الفضائية ونظم المعلومات الجغرافية الدكتور لطفي المومني/شركة مناجم الفوسفات المقدمة : إن المجتمع الذي لا يخطط استخدام أرضه يفقد حاضره ومستقبله ولا عجب بان نجاح...

Unfortunately my code is quite long and has some confidential information in it else I'd post it, but the gist of it is that once my script finishes, the outputs from tools I am running in my script vanish from the map document. My code looks more or less like this: import arcpy, os# Lots of...

I'm trying to use a label expression with ArcGIS formatting tags to create a shadow on my text. I've done everything I need except assigning a value of 1 to X offset and a value of -1 to Y offset. Below is my code: import arcpy mxd = arcpy.mapping.MapDocument(r"CURRENT") df =...

I am attempting to use a script to re-source a bunch of layer files in a folder (adapted from Unable to change data source path for group layer file): import arcpy, datetime, os, io, sysdef walknestedgroups(layerlist,srcString,repString,pathfull,outputFile): if layerlist.isGroupLayer...

I am interesting in difference between tools **intersect {raster} and gIntersection {rgdal} tools in R. I have several ovelapping polygons and I am interested in their overlap, but mostly in spatially merging their attribute tables. From my resulting shp - splitted in multiple polygons - I want...