Do you have instructions on how I can navigate from point to point?

This is a question from a Stakeout iCMT user. The following answer applies to all of our apps that provide the Stakeout functionality.

Please tap the GPS icon and select “Turn GPS on”. GPS must be turned on for the Stakeout functions to be active (not grayed out).

You can use Point Stakeout to help you get to a specified point.

If you have a set of points and want to go from one point to the next in a given sequence, then first use the Add Line Manually function to form a Line Feature (a route). Select the Point Stakeout function then select the Line Feature that you have created as the Target. The app will help you go to the first node (a waypoint). Then you would tap the little arrowhead to advance to the next node per the node sequence in the Line Feature. That node becomes the new target to go to.

Under GPS – Stakeout Setup, you can set up the app so that it will sound an alarm whenever you are close to the specified node.

I own wilderness property in northern Ontario that has been staked out quite a few years ago. Does your app work in Canada?

Yes, our apps work worldwide. If you have the Latitude and Longitude coordinates for the old stakes, and you are trying to look for them, then you could use our Stakeout iCMT to help you do that. The better the GPS receiver used, the easier it will be for you to find a particular stake. For example, if you use an iOS-compatible GPS receiver that provides 3 m accuracy, then the app will help you get to the vicinity of the stake, and you are likely to find it within a 3m x 3m area close to where you are..

iCMTGIS PRO for soil & water application

Navigating back to a GPS point

“I am trying to find the right app for my application. What I need to do is use my iPad and Eos Arrow 100 GNSS receiver to collect and precisely navigate back to points on the ground. Getting back to the point with the subfoot precision my equipment is capable of has proven difficult with other apps because so many are based on my location being indicated by a large blue dot on an aerial photo or map. I need more precise navigation.”

As you can see from the Point Stakeout screen, there is a tiny green dot within the GPS marker to indicate the exact point location. When you get close to the target, you could turn off the Map.

For precise RTK surveying, users usually get the iCMTGIS PRO, which can get the GPS messages directly from the Arrow receiver and not have the data truncated by iOS. iCMTGIS PRO also provides many additional functions that you will find useful for your soil and water applications.

How to convert Garmin GPS waypoints for importing to Stakeout iCMT

Garmin can export waypoints in GPX format. Some of our apps, like iCMTGIS III and iCMTGIS PRO, can import and export data in GPX format. These and a number of our other apps, such as Stakeout iCMT, can import Shapefiles.

A software program is required to convert GPX files to Shapefiles. If you have our PC-GIS 9, PC-GIS X, PC-GPS 9 or PC-MAPPER 9 software program, you can import the GPX file then export the data as Shapefiles.

Otherwise, you could do the conversion by using some other software program, such as the one at the following link.

http://freegeographytools.com/2007/exporting-gps-data-to-gis-i-garmin-gps-units

Using NEZ plane in iCMTGIS PRO to stakeout soccer fields

“Is this something your app could help us do with the EOS? . . . We are working with soccer field templates that are interchangeable between any field location. Right now, we have a survey Leica GPS that we can match 2-3 points (usually corners of the field) to the template points. The receiver then matches the rest of the field points. Then we can use navigation to mark the rest of the field. . . . I’m attaching our template pdf as an example and a csv of the points we currently use.”

Yes, we have customers who do geo-referencing and engineering stakeout using iCMTGIS PRO.

The procedure is as follows:

1. Your templates are based on a local coordinate system in the drawing software used for making the templates.

Suppose corner 1 is at (1000, 1000), and the diagonally opposite corner is at (1100, 1200).

You can define a NEZ plane in iCMTGIS PRO by matching the GPS LAT-LON values at these two corners to the (1000,1000) and (1100,1200) NEZ coordinates.

So, you would first record accurate GPS latitude and longitude coordinates at these two kitty-corner points using your EOS receiver. You can use the data collection function in iCMTGIS PRO to record these positions. In the Static Point mode the app will let you stand at each point for 5 or 10 minutes then average all the readings to yield a more accurate result.

To define a NEZ plane in iCMTGIS PRO, first select MENU – Setup then select the distance unit.

Select NEZ. Confirm to set up a new NEZ coordinate system. Tap on Edit.

Enter the plane name of your choice then tap on Control Point.

With “Reference Point” selected as the Control Point, enter the GPS coordinates for the starting point and the corresponding X, Y values. In our example, it would be X = 1000 and Y = 1000. Make sure you specify the correct N, S, E, W designation for the GPS lat-lon.

Now select “Control Point” the Control Point. Enter the GPS coordinates for the other corner and the corresponding X, Y values. In our example, it would be X = 1100 and Y = 1200. Make sure you specify the correct N, S, E, W designation for the GPS lat-lon.

Tap on OK a couple times to go back to main map screen.

2. As you have a text file for the points in your template, you can use Topic Menu – Import TextFile” to import the points and get them displayed in iCMTGIS PRO. If you do not have a text file, you could use the Add Point by Coordinates function in iCMTGIS PRO to add each corner point and enter its X,Y coordinates.

3. Use Setup – Coordinates to switch to the LLA system (lat-lon).

4. Now use GPS – Point Stakeout to mark the points on the ground.

Using Deed Calls & Stakeout to locate property corners

“I had a topography company locate the northern two corner stakes for my trapezoidal property. I am trying to locate the southern two. I purchased your product Deed Calls and Stakes for my iPhone 7. My hope was that I could go to the North east stake, have your app acquire the GPS coordinates of the stake and then move to the North West stake and do the same. From that I would like to walk down the fence line and have your app tell me when I am 1440’ from that stake… should be right at the South West stake. . . . I don’t have typical x Deg N, y Deg E coordinates.”

Normally, you would get the first node position then use the deed document and enter the deed calls to plot out the property boundary. Then you would use the Line Stakeout function to help you walk along the boundary. The Line Stakeout will show you your Station value. The default Station value at the beginning point is 0′. Therefore, the Station value would be the distance you have walked.

It sounds like you have a fence to follow all the way to the southern two stakes from the northern two corners. This means you could use the Point Stakeout function to help you determine when you are a specific distance from, say, the northwest stake. You could try the following steps, but keep in mind the accuracy of your work will depend on the GPS receiver you use. The GPS on the iPhone is not that accurate. Many users use an external Bluetooth GPS receiver to obtain better accuracy. High-accuracy receivers have a high price tag. Hopefully there are markers at the southern two corners to help you confirm the location when you get to the vicinity.

I. Create a node then use Point Stakeout

1. Turn GPS on and wait a few minutes. Walk to the Northwest corner.

2. Follow the instructions under Open a Deed Calls File in the Help document to create a Job.

3. Follow the instructions under Set First Node and Symbolism and use Pick GPS to get a node at your position.

4. Tap the Line tab then tap the Calls button.

5. Tap the Add button to add a line. Accept the displayed values by tapping on the Back button. When app displays “Update Feature?”, tap on Yes. Now you have created 2 nodes. The one at the GPS marker is the Northwestern corner.

6. Follow the instructions under Point Stakeout. For the Target Feature select the Line you have created. The node you are interested in is Node 1. Now when you walk away from that position, you will see the separation distance displayed in the Range field.

7. Walk along the fence southward and stop when Range shows the target distance. Tap the Store Stake Point icon to store this point.

II. Use Line Stakeout

As the partial map you provided shows S83-53-00E 645.50′ for the southern border, you can use the Deed Calls function to create a Line that represents this southern border.

1. Go back to the Deed Calls screen and change the First Node location by tapping the Pick button then tapping on the Point that you have created at the southwest corner.

2. On the Calls page, tap the Edit button then enter the bearing and distance information:

Horizontal Angle: S83-53-00E

Horizontal Distance: 645.50

3. Tap the Back button and confirm to update the Feature.

4. Now you can follow the instructions under Line Stakeout to move along this line to get to the Southeastern corner and store the stake point.

Does the deed call and stakeout app have all the features of both applications?

The Deed Calls & Stakeout app will let you enter deed calls to draw a deed plot. Then you could use the Point Stakeout function to help to get to any node on the boundary of the deed plot. Or, you could use the Line Stakeout function to help you stay close to the boundary line while walking around the property.

The Deed Calls & Stakeout app only works with the nodes in a deed plot.

On the other hand, the Stakeout iCMT app will let you add Points, Lines and Areas manually or import them from Shapefiles.