CASCADOSS, International Information Workshop, Warsaw, Poland19/29/2016 To close, or not to close – open GIS dilemma with an example of KML Jan Burdziej GIS specialist Geofizyka Torun Oil and gas exploration

CASCADOSS, International Information Workshop, Warsaw, Poland29/29/2016 Objectives 1.Evaluate different solutions for a common GIS task: data conversion from shapefile (ESRI) to KML (Google Earth) 2.Estimate the level of “openness” for each scenario as well as advantages and disadvantages 3.Convert SHP to KML with different tools and evaluate the results 4.Conclusions...

CASCADOSS, International Information Workshop, Warsaw, Poland39/29/2016 Definitions ● Open source: – A movement in the programming community for making source code (program instructions) free and freely available to anyone interested in using or working with it. (Microsoft TechNet, 2008) – In general, open source refers to any program whose source code is made available for use or modification as users or other developers see fit. (...) Open source software is usually developed as a public collaboration and made freely available. (Johns Hopkins Institutions, 2008)

CASCADOSS, International Information Workshop, Warsaw, Poland49/29/2016 Definitions ● KML: – Keyhole Markup Language (KML) – based on XML – geographic annotation and visualization – developed for use with Google Earth, originally known as Keyhole Earth Viewer – "Keyhole" refers to KH, the US military reconnaissance satellite system, first launched in – KML 2.2 specification submitted to the OGC to assure its status as an open standard for all geobrowsers. (...) It became an industry standard on April 14, 2008 (Wikipedia, 2008)

CASCADOSS, International Information Workshop, Warsaw, Poland59/29/2016 Data ● Data input: – point shapefile containing 8 features – WGS84 projection – Fields: “Name” (string), “VisitDate” (string), “Rank” (integer)

CASCADOSS, International Information Workshop, Warsaw, Poland69/29/2016 Data ● Data input

CASCADOSS, International Information Workshop, Warsaw, Poland79/29/2016 Scenarios ● Scenario 1: – Using ArcGIS 9.2 as main GIS environment – Using 3D Analyst extension to export into KML ● Scenario 2: – Using ArcGIS 9.2 as main GIS environment – Using free and open source Export to KML extension ● Scenario 3: – Using free and open source MapWindow GIS as main GIS environment – Using Shape2Earth extension

CASCADOSS, International Information Workshop, Warsaw, Poland89/29/2016 Scenario 1 ● Software: – ArcGIS 9.2 – 3D Analyst extension ● Both – “closed source” ● Working as a Black box ● Only few export options available ● Expensive: ~ US$ 5000 ● Next update: as soon as 3D Analyst 9.3 release...?

CASCADOSS, International Information Workshop, Warsaw, Poland99/29/2016 Scenario 1

CASCADOSS, International Information Workshop, Warsaw, Poland109/29/2016 Scenario 2 ● Software: – ArcGIS 9.2 – Export to KML extension ● “Closed” environment and “open source” extension ● Multiple options ● Free extension ● Cheaper: ~ US$ 2500 ● Frequent updates (last June 5, 2008)

CASCADOSS, International Information Workshop, Warsaw, Poland119/29/2016 Scenario 2

CASCADOSS, International Information Workshop, Warsaw, Poland129/29/2016 Scenario 3 ● Software: – MapWindow GIS – open source GIS software – Shape2Earth extension ● Many options ● Cheap: US$ ● Frequent updates (recent April 22, 2008) ● Community involved

CASCADOSS, International Information Workshop, Warsaw, Poland139/29/2016 Scenario 3

CASCADOSS, International Information Workshop, Warsaw, Poland149/29/2016 Conclusions (1) ● User's perspective ● The same aim, different solutions ● Many other tools available... ● Output makes a difference ● As well as a price! ● “Readiness” is important for the user ● Benefits of open source and community support – Bug reporting and testing, free access, frequent updates – Transparency

CASCADOSS, International Information Workshop, Warsaw, Poland159/29/2016 Conclusions (2) ● Software vs. Solution – extensions to programs = software – “solution” - more general and objective oriented ● Open GIS = open source, open standards, collaboration, etc. ● Proprietary software may be partially “open” towards open solutions ● Open source – not black and white issue? – Open extensions to closed applications and vice-versa, – Developing open source applications with closed IDEs

CASCADOSS, International Information Workshop, Warsaw, Poland169/29/2016 References ● Microsoft, TechNet, Glossary of Networking Terms for Visio IT Professionals ● Johns Hopkins, Information Technology, Glossary ● Torun – oficjalna strona miejska. Zabytki. ● Wikipedia, Keyhole Markup Language

CASCADOSS, International Information Workshop, Warsaw, Poland179/29/2016

CASCADOSS, International Information Workshop, Warsaw, Poland189/29/2016 Thank you! Jan Burdziej GIS specialist Geofizyka Torun Oil and gas exploration