Tag Archives: Ozri 2015

Ozri 2015 GIS Generations

Real-time GIS

Thanks to everyone who attended the real-time GIS session this afternoon. It was great to see the level of interest in the GeoEvent Extension and the options it opens up for organisations to connect the ArcGIS platform with what’s happening in the real world.

We started at the end by showing a complete real-time application built using Operations Dashboard for ArcGIS, which showed vehicles around a fire event in north-western Victoria earlier this year. As the vehicles moved around we picked up their location, course and speed in the GeoEvent Extension, and performed a range of filtering and processing operations on the fly to assist us in our decision-making around this replay of what was a real event back in January.

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Ozri 2015 GIS Generations

Image processing remotely with ENVI

In the world of remote sensing, everything is big. The datasets provided by your preferred image supplier are shipped to you on one or many big disks. To view these image datasets you need a powerful workstation with large amounts of CPU, large amounts of RAM, and always a very good graphics card. Then, when you come to process the imagery, unless you are doing a small area analysis, it takes a long time as each pixel has to be analysed.

In the past our satellite images have had moderate resolution. Landsat presented us with 30m pixels, SPOT 6m pixels and WorldView-2 2m pixels. With the release of WorldView-3, the resolution has again increased. We can acquire multi-spectral satellite imagery at 1m resolution. Initially, this has been seen as a great advancement in remote sensing technology, but with the great gains there is a downside. The size of the disk required to supply the same size image as WorldView-2 has increased exponentially, and the time to process these new images has also increased.

This methodology of bringing the image to the application to process is becoming less viable. It is becoming more expensive in terms of the hardware required, and time-consuming for the image processing. The thought practice now is instead of bringing the image to the processor, why not take the processor to the image. Enter the world of the Cloud.
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Ozri 2015 GIS Generations

Introducing: ArcGIS Online – smart mapping

Smart mapping emerged with this year’s March release of ArcGIS Online, providing a smarter, more sophisticated approach to symbolising data. Replacing the formerly available ‘change symbols’ option, smart mapping is available to a variety of ArcGIS Online layer types (feature services, dynamic layers, stream services and CSV, SHP and GPX map added data, to name a few), and is accessed via a layer’s change style control () in the map viewer contents display.

The smart mapping toolset presents logical symbology options to the ArcGIS Online map maker. These options are derived based on a subject layer’s characteristics, the data type (point, line or polygon), as well as the spatial distribution of the layer’s features together with the variation of values across a subject display field.

Additionally, other evident display characteristics are assessed, such as symbology used by an underlying basemap. Consequently aesthetic, meaningful and size appropriate symbology options are proposed in this data driven, ‘smart’ approach to layer symbolisation.

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Ozri 2015 GIS Generations

So you’ve got the technology, let’s really unlock the potential

One thing I have learnt over the many years I have been in and around the GIS industry is that technology is rarely the barrier to success. To be truly successful you have to plan for it.

But that also raises another question – what does success look like? Every organisation is different, so you need to tune in to yours and listen to what is being said.

We have heard there is an increasing trend towards ‘self-service’ – whether that relates to how you build your hamburger, or enabling other ‘less technical’ staff to create their own maps.Do it yourself

So this is where we need a plan – a plan that helps your organisation unlock the potential you have discovered in your GIS.

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