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I am using NDVI files (value range -1 to +1) created from Landsat CDR images to produce a timeseries in TIMESAT software. My .tif file has following characteristics. File type TIFF,Data Type Double Precision, Byte Order Host (Intel), Interleave BSQ As per the requirement of TIMESAT...

I'm trying to use UpdateCursor in arcpy, but the where clause I'm using seems to be causing trouble. However, when I open up the table in ArcMap and use Select By Attributes with the exact same clause that causes an error in the Python script, it works fine. The name of a feature class and a...

I've wondered for some time how to use Cython in QGIS. I know I can integrate a Cython code in python, but I want Cython to handle QGIS classes. QGIS is built upon QT, every qgis object is a qobject written in c++, and PyQgis are python bindings to them. Is it possible to use those QGIS Object...

I'm looking for the most efficient method of editing coordinates for a building in a CityGML file. My setup: I have a base CityGML file with a set of buildings in a defined area of the community I'm working in. I am trying to merge a new building from a different CityGML file to my base...

I'm trying to symbolize a line layer in CartoDB using CartoCSS. I need my line to be a series of diagonal lines, something like this -> ///////////// In QGIS I would do this as a marker line with a straight line set at an angle for the marker. However, I can't figure out whether such...

I want to get all field names present in a feature class using queryfilter programmatically. أكثر...

I have multiple service area polygons (each exported to a feature class) that have been generated from multiple service areas within the same network using network analyst. Each service area is different as they were generated from different points. The break values are stored in the attribute...

Let me know homepages related to open source command line tools or source codes for converting tiff image file to raw file. أكثر...

My goal is (1) to identify tracts that are above the 99 percentile of a variable (xvar), (2) to dissolve contiguous tracts by summing a variable (yvar), and (3) to get the coordinates of the centroids (longitude and latitude) of the merged polygons. At the very first stage for picking the...

I would like to make a point cloud viewer for hdf5 formatted point cloud. Because massive point cloud data can not be displayed by general point cloud viewers.I often use massive point cloud data. I am sure that after converting point cloud to hdf5, viewer should be loaded it. Please let me...

I have a successful piece of python code that reads selected data from a csv and returns it in the following format.... Att_Dict = {'7643': '7625', '9644': '2289', '4406': '4443', '7588': '9681', '2252': '7947'} That has been pointed out as the incorrect format for the data I am trying to...

I have 2 layers, Sugar Data and Surveyed Parcels. My interest is to include 2 new fields in the sugar data (lot & plan) which is present in the surveyed parcels data. Im using Arc Map 10, can anyone help me to carry these two fields across, or maybe assist me with the use of overlay tools...

The existing algorithm for convex hull is not able to capture the feature for a set of 3D points. Moreover, I found few mathematic tools have this function to obtain the concave hull and their responding points. Given the data of spheres: x1 y1 z1 radii_1 x2 y2 z2 radii_2 ... xn yn zn...

I am looking for open source GIS software which can be used for utility management (like water, gas, electricity, road, etc.). I have done this in ArcMap 10.1 but am now looking for open source GIS software. Can anyone suggest to me any open source GIS software for the same? أكثر...

A radar on CloudSat imaged the internal structure of a powerful typhoon that will likely skirt east of Japan in the coming days. أكثر...

Which parameter has to be given into Options 's "Hydraulics" field in EPANET? Has it to be only a name or a complete file name with the extension? In my case .rpt doesn't work, neither without the extension (nor with a path). [I am working with giswater, that generate new db in postgreSQL, files...

When storing raster files in PostgreSQL only one row is created in the database, but the raster is a matrix so typically it must create rows and columns. I want to understand how raster files are stored in databases? أكثر...

San Diego County's new Waterfront Park was the scene of an epic "Party by the Bay" hosted by Esri. أكثر...

In education there’s a debate over whether a student should start with first principles and build from there or whether they should start at a place that’s further along so that they can reach even higher at an earlier age than those who have to, for example, write a proof for every geometry...

Every once in a while, there is an article on Flipboard or some social site highlight the top ten reasons to code or something similar. As Geogeeks, we share a rather complex relationship with programming in general, a lot of new companies and organizations are starting to use location data in...