Hello!
I'm building a route collection application based on ArcPad (presently 8SP4). The software will based on user attributes save track points from GPS to a shape file automatically. At the same time the user will record other interesting points (also from GPS) by filling in a custom form. All this is working OK, but my users will be furious if I release the application as it is.
By the way, I do not want to use the built in tracklog (I hate it and think it is useless).
My present problem is that I can not add points to the track points shape file and keep it invisible (visible=false). This triggers a constant refresh of the layer every time a new point is recorded. This is annoying and slows down the application. (I can turn the layer off and keep recording, but as soon as I record a point to the other shape file it becomes visible again.)
I need a way ether to regulate refreshes manually (in code) or to keep the layer invisible so no refresh is needed. Other suggestions is also welcome...
The event is triggered by the System Objects GPS onposition event.
Sub AddRoutePoint() 'Called by onposition event
if Logging then 'True if logging is activated
GetGpsMGRS 'Sub that reads GPS and populates global variables
Dim RouteLayer, RouteSel, RouteRS
Set RouteLayer = map.Layers("Route") 'This refers to my route points shape file layer
If RouteLayer.CanEdit Then
RouteLayer.Editable = True
Call Map.AddFeatureXY(GpsX,GpsY, false) 'Global GPS variables
Set RouteSel = Application.Map.SelectionLayer
Set RouteRS = RouteSel.Records
RouteRS.Bookmark = Map.SelectionBookmark
RouteRS.Fields("MGRS").Value = gpsMGRS
RouteRS.Fields("RouteType").Value = RouteType
RouteRS.Fields("RouteWidt").Value = LaneNumbers
RouteRS.Fields("RouteStat").Value = RouteStatus
RouteRS.Fields("GPS_HDOP").Value = gpsHDOP
RouteRS.Fields("GPS_SOG").Value = gpsSOG
RouteRS.Fields("GPS_COG").Value = gpsCOG
RouteRS.Update
end if
end if
End Sub
A thought: Is it possible to avoid the problem if the route points was recorded to a polyline shape file?
Another thought: Is it possible to add the points to a shape file that is NOT opened in the application, and thereby avoiding the problem?
Regards
Klas Karlsson, SWEDEN
