Managing multiple track segments with dnr garmin
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Managing Multiple Track Segments with DNR Garmin. Objectives. Using DNR Garmin: Download tracks Save track segments to shapefiles. Summary of Topics. Multiple Track Features Scenario Download Tracks Save Polygon Feature as Shapefile Save Line Features as Shapefiles.

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Managing Multiple Track Segments with DNR Garmin

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Managing multiple track segments with dnr garmin

Managing Multiple Track Segments with DNR Garmin


Objectives

Objectives

Using DNR Garmin:

Download tracks

Save track segments to shapefiles


Summary of topics

Summary of Topics

  • Multiple Track Features Scenario

  • Download Tracks

  • Save Polygon Feature as Shapefile

  • Save Line Features as Shapefiles


Data collection scenario

Data Collection Scenario

Collected one polygon feature

Saved Track (needed fire acres)

Collected two line features

Dozer Line

Hand Line

3 Separate Track segments in the Active Track Log

Fire Perimeter


Data summary

Data Summary

Have (GPS)

3 track segments

polygon

line

line

1 saved track

polygon

Need (GIS)

1 fire perimeter polygon

1 dozer line

1 hand line


Goal save all track points to single shapefile

Goal: Save All Track Points to Single Shapefile


Select track download

Select Track Download

Download – transfers a copy of data, does not remove data from receiver

verify Coordinate System


View track data table

View Track Data Table

show/hide data table

scrollbar

scrollbar

resize window

watch download


Select all active log track points

Select All Active Log Track Points


Managing multiple track segments with dnr garmin

...Save...


As text file first

...As Text File First!

A Text File should always be saved First as a back up file to the ESRI (ArcView) Shapefile

Name should indicate all track points

20080319_rxwui_alltrackpts


Status window

Status Window

Name: 20080319_rxwui_alltrackpts.txt


Save again

...Save Again...


As arcview shapefile

...As ArcView Shapefile...

Note points files already there

Projected shapefile uses projected coordinates.

Unprojected shapefile uses WGS84 coordinates.


As a point

...As a Point


Status window1

Status Window

Name same as text file, extension different

20080319_rxwui_alltrackpts.shp


Locate shapefile

Locate Shapefile

Note file path

Note additional files


Goal save multiple shapefiles

Goal: Save Multiple Shapefiles


Select first track segment

Select First Track Segment

First segment is fire perimeter

Second segment is dozer line

Third segment is

hand line

Select the first Active Log track segment

light blue-start of new track segment


Managing multiple track segments with dnr garmin

...Save...


As text file first1

...As Text File First!

A Text File should always be saved First

as a back up file to the ESRI (ArcView) Shapefile

Name should indicate feature type

20080319_rxwui_perim.txt


Save again1

...Save Again...


As arcview shapefile1

...As ArcView Shapefile...

Note all track points file already there

Name should indicate feature and shape type 20080319_rxwui_perim_pts.shp


As a point1

...As a Point

- Save to a Point Shape to ensure integrity

- Save to a Polygon ONLY if you are sure your data is perfect


Save again to arcview shapefile

...Save Again to ArcView Shapefile...

Note all track points file and perimeter points listed

Name should indicate feature and shape type 20080319_rxwui_perim_poly.shp


Save to polygon

Save to Polygon


Check saved files

Check Saved Files

Text file of all Active Log track points

Point shapefile of all Active Log track points

Point shapefile of fire perimeter track points

Text file of fire perimeter track points

Polygon shapefile of fire perimeter


Let s peek at your work

Let’s Peek at your Work!

Give both shapefiles to GIS Specialist

Great!

Point Shapefile: 20080319_rxwui_perim_pts.shp

Polygon Shapefile: 20080319_rxwui_perim_poly.shp


Select second track segment

Select Second Track Segment

First segment is fire perimeter

Second segment is dozer line

Third segment is

hand line

light blue - start of new track segment


Managing multiple track segments with dnr garmin

...Save...


As text file first2

...As Text File First!

A Text File should always be saved First

as a back up file to the ESRI (ArcView) Shapefile

Name should indicate feature type

20080319_rxwui_dzline


Save again2

...Save Again...


As arcview shapefile2

...As ArcView Shapefile...

Note other shapefiles

Name should indicate feature type 20080319_rxwui_dzline.shp


As a point or a line

...As a Point or a Line???

Point Shape ensures integrity

You can save to a Line ONLY if you are sure your data is perfect


Check saved files1

Check Saved Files

Text file of Dozer Line

Shapefile of Dozer Line


Select third track segment

Select Third Track Segment

First segment is fire perimeter

Second segment is dozer line

Third segment is

hand line

last segment in table


Managing multiple track segments with dnr garmin

...Save...


As text file first3

...As Text File First!

A Text File should always be saved First

as a back up file to the ESRI (ArcView) Shapefile

Name should indicate feature type

20080319_rxwui_handline


Save again3

...Save Again...


As arcview shapefile3

...As ArcView Shapefile...

Note other saved shapefiles

Name should indicate feature type 20080319_rxwui_handline.shp


As a point or a line1

...As a Point or a Line???

- Point Shape ensures integrity

- Save to a Line ONLY if you are sure your data is perfect


Check saved files2

Check Saved Files

Text file of Hand Line

Shapefile of Hand Line


Review of topics

Review of Topics

  • Multiple Track Features Scenario

  • Download Tracks

  • Save Polygon Feature as Shapefile

  • Save Line Features as Shapefile


Final data review question

Final Data Review & Question

GPS

3 track segments

polygon

line

line

1 saved track

polygon

GIS

1 fire perimeter polygon

1 dozer line

1 hand line

All GIS shapefiles came from Active Track

Why didn’t we use Saved Perimeter Track?


Compare geometry

Compare Geometry

Active Track Log

Saved Track

Which would be a better representation on a map?


Compare area calculations

Compare Area Calculations

Active Track Acres Calculated in ArcGIS

Saved Track Acres Calculated in GPS

Saved Track –

Good estimated Acres!


Review of topics1

Review of Topics

  • Multiple Track Features Scenario

  • Download Tracks

  • Save Polygon Feature as Shapefile

  • Save Line Features as Shapefiles


Conclusions

Conclusions

Active Track Log

  • Actual GPS positions

  • Good depiction of features

    Saved Track

  • Saves “critical” GPS positions only

  • Creates linear shapes for curved features

  • Good approximate acre calculation


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