Latest Contributions by SimonKettle

It'll be interesting to see the other converted as the longitudinal (X) value is out by small amount: 21.094884 vs 21.0949. Like you say this could be a precision and/or rounding problem... ... View more

Yes there is, go to ArcGIS Trial | Free 21-Day Trial , fill out the form and follow the instructions.  It might be worth checking you have the system requirments for ArcGIS Pro 2.2 before trying to install: ArcGIS Pro 2.2 system requirements—ArcGIS Pro | ArcGIS Desktop   ... View more

Iren Iren Thanks you for indicating this was helpful. For your information I have taken a screenshot of the calculations conducted using the LKS94 to WGS84 transformation as described above...the resulting decimal degree outputs for both LKS94 and WGS84 are the same to the 6th decimal point which is under 1m accuracy... ... View more

If you are working within this extent: Max Latitude:53.8900 Min Latitude:19.0200 Max Longitude:56.4500 Min Longitude:26.8200 The LKS94 to WGS84 Transformation should be valid and because LKS94 is derived from ETRS89 and coincident to WGS 84 within 1 metre. This transformation has an accuracy within 1 meter. See https://epsg.io/1283  for further detail on the transformation... ... View more

Can you provide the name and details of the local system and which system you are trying to transform to? ... View more

"Is it possible that an error occurs while making a transformation?" Yes, the positional accuracy of a transformation from one coordinate system to another will result in a positional error. This is the reason why using the correct transformation is important as the correct transformation method will minimise the positional error. From my calculation the distance between the two latitude and longitude values is approximately 186 cm. I think the next question is: Does your data require positions more accurate than that? ... View more

I did change the tool environmental settings to run the analysis 0 - 360 longitude but I just moved the edges to Greenwich Meridian rather than 180 in the Pacific Ocean... The only real workaround I see is to run the analysis twice and present static images not a global map or globe with the results. But with the ability to show data on ArcGIS Earth etc I would prefer to show the raster calculations globally without the edges being present. ... View more

Hi Rahul, This all possible and depends really on the final purpose of the map. If it is as you stated simply to view vessel positions overlain on your own geospatial layers then you can either bring in an AIS feed to view within your GIS an example product is exactAIS Geospatial Web Services, Marine Traffic API Services Or make your GIS layers available in an OGC format and use them as a base layer in a 3rd party web map like exactEarth ShipView, Marine Traffic Online Services. To answer your questions: is there any software or system available where we can integrate live vessel track data with ArcGIS? Yes, GeoEvent Processor Is it mandatory to have ArcGIS Server to use Geoevent Server for live vessel tracking? Yes, "ArcGIS Server must be installed and configured on the machine before installing ArcGIS GeoEvent Server." See the Software Requirements. Can we integrate the vessel monitoring data (AIS) in ArcGIS Desktop? Yes, you would connect to ArcGIS Server in ArcGIS Map/Catalog or through the software from Portal in ArcGIS Pro. What about Web Based GIS System for live navigation monitoring? Yes, again you can publish the AIS Layer to a feature layer/web map and view it via Portal. These items can be viewed within Desktop products as well. Is it possible to integrate positioning of ships to the GIS in real time? I think you mean can you plot the actual live position of the vessel into the GIS in real time. Yes, you can that would be the data source. So, check with the data provider/equipment to see what the refresh rate is. All those vessel has to be showed in real time in a televisions around the office. Yes, you could use something like a Surface Pro to display the web map showing live ship positions. This would be impressive! How API is integrated into GIS. I suggest you have a look at this website. I hope this answers your questions. Feel free to email me on skettle@ggspatial.co.uk or check out www.ggspatial.co.uk  Cheers, Simon ... View more

What's in the XML file? ... View more

It sounds as though you have managed to view the GeoTIFF into the Map View/Data Frame but it is in the wrong place. Have you confirmed that the Coordinate Reference System used is correct/as assumed? ... View more

HI Guy, Yes I think cartographic symbols as described would be really useful to have especially as it would then be possible to have one feature layer showing ports with separate transportation categories (using "transportation symbols", rather than several layers all showing a different transport category.   I do think that symbols for all the categories and available facilities in the World Port Index would be amazing to see - I think it would make the database much easier to navigate as there is quite a lot of information in the index. Cheers, Simon ... View more