GPS Data Collection Help

AkhilParujanwala — Wed, 16 Feb 2011 18:07:02 GMT

I am having trouble coding my own GPS Data Collection workflow.

Basically I want the user to click a button (Start GPS) and then it should average based on the application settings and layers' gps quality.
Then show the attributes page and then save the attributes once completed.

Here is what I have so far:
It works on its own, and will put the point on the map and fill in the 2 attributes hardcoded below. But I don't want it to be like that.

Can someone please help, I am using ArcGIS Mobile 10, the out of the box solution.

Thanks!

void StartAveraging()
    {
        CurrentFeature();
        
        // set quality filter
        GpsQualityFilter quality = new GpsQualityFilter();
        quality.MaximumPdop = _feature.FeatureLayerInfo.CurrentGpsQualityFilter.MaximumPdop;        
        quality.FixStatus = GpsFixStatus.GpsFix;

        try
        {
            pt = new ESRI.ArcGIS.Mobile.Geometries.Point();            
            m_gpsAveragingTool = new GpsAveragingTool(quality, MobileApplication.Current.GpsConnectionManager.Connection, pt, MobileApplication.Current.Project.SpatialReference);
            m_gpsAveragingTool.GoodPositionAcquired += new EventHandler(m_gpsAveragingTool_GoodPositionAcquired6);
            //m_gpsAveragingTool.GpsQualityChanged += new EventHandler(m_gpsAveragingTool_GpsQualityChanged);

            // apply offset
            //int distance = Convert.ToInt32(textBoxDistance.Text.Trim());
            //int bearing = Convert.ToInt32(textBoxBearing.Text.Trim());
            //// the distance unit can be specified here as well
            //gpstool.ApplyOffset(distance, bearing, ESRI.ArcGIS.Mobile.SpatialReferences.Unit.Mile);
            
            m_gpsAveragingTool.Start();
            m_gpsAveragingSettings = _feature.FeatureLayerInfo.CurrentGpsAveragingSettings;
            
                       
            
        }
        catch (Exception ex)
        {
            System.Windows.MessageBox.Show(ex.ToString());
        }
   }  

    void m_gpsAveragingTool_GoodPositionAcquired6(object sender, EventArgs e)
    {        
        if (!m_gpsAveragingTool.IsConstructing)
            return;

        System.Windows.MessageBox.Show(m_gpsAveragingTool.GoodPositionsAcquired.ToString());
        if (m_gpsAveragingTool.GoodPositionsAcquired >= m_gpsAveragingSettings.MinimumPositions)
        {
            System.Windows.MessageBox.Show("Before Accepting");
            m_gpsAveragingTool.AcceptCurrentVertex();
            System.Windows.MessageBox.Show("---- Accept Current Vertex ----- ");

            FeatureLayer ptlayer = MobileApplication.Current.Project.FindFeatureLayer("Dose Rates");
            FeatureDataTable ftable = ptlayer.GetDataTable();
            FeatureDataRow newFeature = ftable.NewRow();
            newFeature["VALUE"] = Convert.ToDouble("3");
            newFeature["UNIT"] = "mSv/h";
            newFeature.Geometry = pt;
            ftable.Rows.Add(newFeature);
            System.Windows.MessageBox.Show("Adds new Feature");

            // Let user edit attributes
            //if (_editFeatureAttributesPage == null)
            //    _editFeatureAttributesPage = new EditFeatureAttributesPage();

            //System.Windows.MessageBox.Show("Event Handlers for Attributes Page");
            //_editFeatureAttributesPage.ClickOk += new EventHandler(_editFeatureAttributesPage_ClickOk);
            //_editFeatureAttributesPage.ClickCancel += new EventHandler(_editFeatureAttributesPage_ClickCancel);
                                    
            //_editFeatureAttributesPage.Feature = _feature;
            //MobileApplication.Current.Transition(_editFeatureAttributesPage);


            ftable.SaveInFeatureLayer();
            System.Windows.MessageBox.Show("Saves Feature");
        }
    }
    void CurrentFeature()
    {
        try
        {
            Cursor.Current = Cursors.WaitCursor;

            // Cache homepage for the application
            // Once data collection is done, we come back to this cached page
            _homePage = MobileApplication.Current.CurrentPage;

            // Reset _feature and _featureType
            _feature = null;
            _featureType = FindFeatureTypeByName("Dose Rates");
            if (_featureType == null)
            {
                ESRI.ArcGIS.Mobile.Client.Windows.MessageBox.ShowDialog("Can't find " + "Dose Rates" + ".", "Warning");
                return;
            }

            // Create a new Feature, this will automatically call StartEditing on this feature
            _feature = new Feature(_featureType, null);
        }
        catch (Exception ex)
        {
            System.Windows.MessageBox.Show(ex.ToString());
        }

    }

Re: GPS Data Collection Help

AkhilParujanwala — Thu, 17 Feb 2011 19:01:17 GMT

I figured it out, I passed in the Feature instead of Point (Pt) and now all the code works including all my other extensions that are applied to the feature before and after the feature has been created.

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