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0
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2answers
36 views

Diverse values to one field for soil analysis

I have soil analysis data in an Excel table. For one analysis point there are values at three depths. Besides the Excel file I also have a shapefile with the points to which I want to add the soil ...
0
votes
0answers
13 views

Tracking Conversation Records using QGIS

I am working on a project that covers three small towns. I wanted to keep track of a large number of conversations I have with an equally large number of land owner. I have a GIS file set up in QGIS ...
1
vote
2answers
142 views

spatial database vs spatial datastructure?

I am building an automated system that has to process several hundred spatial queries in the form of a polygon every day. The queries have to return both spatial and nonspatial data from different ...
0
votes
1answer
352 views

Export table structure information to Excel QGIS or MapInfo

I want to create a data dictionary of the tables of our primary layers. So I want a way to export the table structure to Excel. I don't need the actual data, I just want to know what columns are in ...
2
votes
2answers
397 views

How do I set the working directory in QGIS?

I'm learning QGIS and lovin' it. But one thing that annooys me a little is is that each time I want to save data, the default directory is the QGIS folder under Program Files. How can I set this, ...
3
votes
3answers
185 views

E00 file structure?

I am trying to write a java application that reads and visualizes data from E00 file. I cannot find any sources describing what is the structure of an E00 file and also what information does it ...
4
votes
1answer
328 views

What is the Best Practice for ArcGIS Server File Structure?

My organization is trying to decide how to best organize our file structure for services we put on our ArcGIS Server. As of now we have subfolders within the root so our structure is: ...
16
votes
4answers
1k views

How are people using Python data structures and classes in ArcPy?

This question may expose my ignorance on programming but I'm curious about how people are using different python data structures within ArcPy. This page lists the data structures in Python. I ...
2
votes
0answers
186 views

Tree structure for a muticolored region quadtree

Is a B+ tree suitable for a multicolored region quadtree (for example, one segmenting a plot of land into several crops)? I recently purchased a copy of Samet's 'Foundations of Multidimensional and ...
6
votes
5answers
490 views

Comprehensive Intro to GIS Data Structures

I am looking for a comprehensive introduction to design and analysis of spatial data structures. If possible, please only link to online resources unless the offline resources is especially of note. ...
1
vote
0answers
192 views

How exactly is an SLD_body object (when extracted from its XML href) structured when using a cElementTree to parse it?

I'm trying to export data from a PostGIS database into a geoserver and I've gotten it to where I can get the PostGIS database to point to the geoserver (I'm doing this as a python script for a GIS ...
20
votes
2answers
2k views

What are the benefits of Multipart Features?

Multipart points, lines, and polygons are implemented in nearly every GIS, but what benefits, if any, do they provide? In a relational database attributes shared by different features can be stored ...
7
votes
1answer
405 views

Is it possible to define a No SQL model for spatial data? [duplicate]

Possible Duplicate: Is there any way I can use a Key-Value store for geospatial data? I read somewhere about No SQL being a solution for large databases management, the kind that google ...
5
votes
5answers
173 views

What datastructure is a good choice for objects in a map-editor?

I am planning to implement a map-editor. But I don't really know what data structure are a good choice for storing the map-object in. When the user pans (scrolls) the map, there will be much looking ...