Expertgps does not open how to#
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Expertgps does not open software#

SDG09 Industry innovation and infrastructure Open source, lab protocols, arcgis, gis softwares

from a spreadsheet without knowing the coordinates beforehand.

So identifying missing attributes is a good way to plan out the steps and to decide whether to use the data in question at all.įrom the discussion above GRASS/ QGIS is the way to go so henceforward all the instructions will be given regarding this software.

what attributes are available? Most of the time we never get data in the exact form and sufficient content as we would like.

raster or vector file? in case of a figure, what is the best resolution and how much digitization is required?.

what is the input file format? is it compatible with the GIS program in use?.

are all the associated files available? A shapefile often comes in with at least 3 associated files containing attribute information (.dbf), shape (.shp) and projection (.prj).

Questions to ask before feeding data into any GIS program So far this is the fastest and most effective way to get a vector map from a spreadsheet in an open source GIS program.

Expertgps does not open software#

Among its many functions, can return a shapefile to be used directly in a GIS software without dropping all the attributes. : generate DMS geographical coordinates from address, can process 500 addresses each time and return a KML file to use with GoogleEarth.ĮxpertGPS™ : not free but a trial of 30 days is available, which is more than enough for this step. Other free tools that can expedite data preparation: QGIS = Quantum Graphical Information System Other than free QGIS offers the most similar interface to ArcGIS: a 3 in 1 console with display, working directory and menu of commands. We'll just have to see how more developed it can become in the future.

Its interface is similar to a programming interface e.g. With a very short history it is not yet sophisticated enough even though it is more flexible with file size than GRASS.

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It is also free, easy to install and has been released up to version 2.1. SAGA = a System for an Automated Geographical Analysis is developed by a group of German scientists in the early 1990s. These disadvantages are limited when GRASS is coupled with QGIS. Being very similar to the commercial product, GRASS is very specific with the projection of the input file and the path to the target input file, among others. Being the leading substitute for ArcGIS, however, GRASS does not handle vector files of size close to 1 GB very well nor data table of size larger than 4 MB and does not have a function to calculate area (which is surprising). The most updated version is 6.4 and quite friendly to install. GRASS = Geographic Resource Analysis Support System is considered the leading open source substitute for GIS.

Expertgps does not open how to#

5 How to load a shapefile into GRASS/ QGISĪn overview of available GIS softwares.

3 Questions to ask before feeding data into any GIS program.

1 An overview of available GIS softwares.

I find QGIS difficult to use compared to ArcGIS Desktop. It's very much the same as ESRI on one hand but for me, it's also incredibly different. I have QGIS, but have not gotten over the learning curve yet.

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(ArcGIS for home is the full blown Advanced with all the extensions) But with basic you can use the angle and length when drawing out your features. I think COGO is available with standard and advanced. And just to mention there are 3 levels of ArcGIS Desktop.

more efficiently than measuring in Google Maps and drawing in Publisher. It's not full-blown COGO but it will map a legal description.

Individual non work-related research or non-profit volunteering type of thing.īut with ESRI / ArcGIS, you don't even really need the COGO tools to map from deeds when drawing a new feature you can really just use the length and angle when drawing. I don't know how ESRI enforces the ArcGIS for home use license.