ArcPad 10 Training - Perth

The popular Using ArcPad training course has been scheduled for Wednesday the 22nd of September in Perth.

Further information on the course can be viewed at the RIA Mobile GIS website here.

RIA Mobile GIS run scheduled and onsite training courses for ESRI software throughout Australia, please contact us if you would like to register your interest for any future training courses.

Handy AXF Export Tools in ArcPad 10

For anyone who missed it, an interesting post was added to the ArcPad Team Blog, explaining some new ways that you can export data directly from the AXF file using ArcPad Studio (version 10). These tools allow you to export from a feature class or table to:

• Shapefile
• DBF
• Microsoft Excel
• Adobe PDF

Exports to PDFs can be done in two ways: creating a new document, or appending to an existing document. Further information can be found here.

ArcPad 10 Splash Screen

In ArcPad 10, the welcome (splash) screen has been revamped to simplify the process of loading up a map, and starting data collection in the field. With a single click, you can:

• create a new empty map
• create a QuickProject
• open an existing map
• open the previous map used

If you want to repeat the same action each time, you can select the "Set as default and don't ask again". In doing this, you will not see this welcome screen again (unless you activate it from the Options menu).

This is all well and good if you want to perform one of these actions at startup, but what if you don't? In a number of our customised applications that we write, we want to start with an empty map, and then load all of the applicable data into the map via code. The logical thing to do was to use the "New Map" option. Unfortunately this action was activated after the loading of applets (where the function to load required data was called). Hence, you got a message saying "Do you want to save your map?" every time it started up.

The workaround that I came up with was to use the timer. Once the applet loads, set a timer for 3 or 4 seconds to allow the "New Map" action to be called, then load the data. This worked ok, but it added a few extra seconds to the startup time. The best solution turned out to be an undocumented feature of ArcPad: adding "/nosplash" parameter to the ArcPad shortcut. This prevents this dialog from ever appearing, leaving the desired outcome of no action at startup!

To add the "nosplash" parameter (desktop):

1. Right click on the ArcPad shortcut, and select "Properties"
2. Switch to the Shortcut tab
3. Under the Target path, add /nosplash to the end (make sure you put a space after the final ")
4. Click OK

To do the same on Windows Mobile, the easiest way is to customise the ArcPad Today toolbar. More info on this can be found in the Help document.

ArcPad Drawing Speed

One of the major enhancements in ArcPad 10 is "Improved Performance", in particular, drawing speeds. I thought I would do some quick comparisons between versions 7.1, 8.0 and 10.0 to see just how significant these improvements were.

Process
I set up a simple applet which zooms around the map in ArcPad to various pre-defined extents, logging the drawing times of each layer in the map. My map had 5 (AXF) layers in total:



The pre-defined extents were selected at random locations, each at different scales. After zooming in to a small area, I forced ArcPad to zoom back out to the full extent to make sure that it was forced to re-draw as many features as possible. The tests were repeated 5 times for each version of ArcPad.

The tests were performed on a virtual machine, running Windows XP (3GHz processor, 768Mb RAM).

Results:
The results from the tests are shown below. ArcPad 7.1.1 times are shown in blue, 8.0.3 in red, and 10 in green. Times are shown in milliseconds, and represent the total time taken to draw all 5 layers (averaged over the five tests).


So, the good news is there is a definite decrease in drawing times in version 10, particularly when zoomed out to full extent. Interestingly the drawing times for Area 1 were quite high, and in most cases, higher than the full extent. Upon inspection, it turns out the around 90% of the features lied within Area 1. The table below shows the feature counts in each layer, at the different zoom extents:


If you would like a larger graph or more detailed figures, or just want to find out more about the testing that I did, leave us a comment.

ArcPad 10 Coming Soon

ArcPad 10 is set to be released in late June 2010. Key features include improved user performance and support for ArcGIS Online Map Services. For more information see http://www.esri.com/software/arcgis/arcpad/whats-coming.html