GeoSpatial Knowledge Hive

GDAL & OGR libraries allow you to perform various GIS operations like, Flow Direction or working with DEM few raster & vector analysis outside GIS environment. Image by  Gerd Altmann  from  Pixabay   What Knowledge one should have :  Basic Programming, Python What software you need : Python IDLE or command line, GDAL libraries files (explained later) Installation : 1- Once you have Python installed. 2- Start python IDLE to check which version of python you are using available at top as shown        Python IDLE 3- Install two files available at link below based on your version of python. Download  Link :  http://www.gisinternals.com/query.html?content=filelist&file=release-1500-gdal-2-1-2-mapserver-7-0-2.zip Install first :  gdal-201-1500-core.msi  and then:   GDAL-2.1.2.win32-py2.7.msi * Note specify the path C:\Python27\ArcGIS10.3\Lib\site-packages\ for GDAL-2.1.2.win32-py3.2....

GeoSheets  relates google sheet data for Geo-spatial queries Image by digital designer from Pixabay Common Application : Geo-Coding, Business Maps Applications : https://www.geosheets.com/use_cases  Image Source: Geo-sheets  Image Source: Geo-sheets  Image sources: https://www.geosheets.com

Using Python to capitalize strings  - Add new field in Attribute Table - Go to Field Calculator  - Select Python  - use         .title()       .upper()       .lower() title= Abc upper= ABC lower = abc  Example=  FieldName.title() Image Source: Pixabay

If You want to Add X,Y data in  Arc Map  that you have got from GPS  receiver , or from ground survey . Here is the methodology to convert an Excel sheet or a text file to Arc Map workable file format .  Image by  Tumisu  from  Pixabay   Open new ArcMap Document Add your .csv file in data folder to ArcMap by using the Add data tool (either by expanding the  sub menu  under  File > Add Data )   or by clicking the Add Data tool on the Standard toolbar  ArcMap tool Right-click on your new layer and choose  Display XY Data as shown in figure below Displaying X,Y Data  Ensure that the X and Y fields were selected correctly by ArcMap   Click the  Edit button a window as shown appears Displaying X,Y Data  Select the coordinate system for your points, and click  OK . Some possible suggestions:  Coordinate Systems > Geogr...

What is Four Square Four Square is mapping application that finds nearby places such as coffee shop and others on map. How it works: It has 60 million venues in its database. www.mapbox.com How it is useful Planning journey Happy Hour Planning Transportation network   Nearby hospital   www.mapbox.com Anything Special: Custom styled maps,based on Mapbox 

What is a DBMS ( database management system)? A database management system (DBMS) serves as an interface between users and their database What is a Spatial Database? If you include location with data your database will be spatial data. https://pixabay.com/ Why location : Geography plays a key role in effective decision making, importance of location with your data can be explained by the fact that all big giants of IT industry like google are now focusing on Geospatial technology. Advantages of Spatial DBMS:- -           Spatial database enable you to perform spatial queries, store locational data. -           Organizations can leverage Return on Investment using SDBMS -           Effective Decision making -           Accurate research -       ...

Launching innovative applications Google rule day to day Information technology, Google Earth with vast applications and visualizing capabilities, is being used for many GIS related operations. What data set GPEE uses?  Landsat and other data sets are being used by Google Planetary Earth Engine Image by  Gerd Altmann  from  Pixabay   Google Earth Engine  How can I use it?  GPEE can be used for change detection; temporal analysis of Data set can be performed. Example: You want to see how your city has changed in last few decades, what is current and past status of forest covers in your area. How is water path changing in last few decades? Read More @ https://earthengine.google.com For programmers interesting codes @ https://developers.google.com/earth-engine

Ease of data manipulation remained a topic of interest and debate for academia and research. Web GIS, and spatial data interpolation will always be open topic for data exchange researches, innovation and technologies. Image by James Osborne from Pixabay   FME can extract transform and load data (ETL) operations along with conversion into other formats, ease of operation extends to such a space that automated conversion for large data sets is also an option. It has ability to handle Lidar data set. One can convert, transform, merge, validate, Re-project, inspect, style and filter spatial data sets. More aboutFME ...