Can I use iCMTGIS PRO on my iPad to stakeout to survey points and also develop custom data collection forms?

1. Stakeout to survey points

The GPS – Point Stakeout function in iCMTGIS PRO can take you to the survey points. How close you can get to the survey points depends on the GPS receiver. The built-in GPS of an iPad device has an accuracy of about 10 meters (sometimes better, sometimes worse). If there are markers on your survey points, then you could identify the marked points after you get to its vicinity. Otherwise, you will need a high-precision GPS receiver, such as the EOS Arrow or iSXBlue II GNSS to take you closer to the point position. To pin-point a previously surveyed point, you will need to connect the EOS Arrow 200 or iSXBlue II GNSS to a RTK network in your area.

2. Custom data collection forms

The GPS – Collect function will let you record Attribute values during data collection. You can use the GPS – Feature List function to set up the Features/Attributes/Values for your project. Similar projects can share the same Feature List.

GPS Feature Data Collection

GPS Feature Data Collection

You can set up custom value lists to facilitate data collection. During GPS data collection you can have the app display the Attribute fields. You can enter data manually or select the desired data from the pre-defined list. The collected data can later be presented in Sheet View and edited.

If you are not after entering data while recording GPS positions, but are interested in designing your own report forms for entering data for a certain site, then please consider our Wetland & Stakeout app.

10/14/16 Renting iSXBlue II GNSS or EOS Arrow receiver

“Although the buying price for the iSXBlue II GNSS is too high for our project, I did find a company in OH, that would rent it to me for a very decent price for a week.”

This user informed us that http://www.fondriest.com/ has iSXBlue II GNSS for rent. It looks like they also have EOS Arrow for rent.

If you have a temporary short project to do that requires the use of a higher precision GPS receiver, this could be a viable solution.

Questions about the Deed Calls & Stakeout app for iPhone and iPad

“I’m wondering if your Deed calls and stakeout app can be used to enter the deed calls in the office, then travel to the site to establish the starting point with the phone’s GPS? Also, do the deed calls have to entered directly into the app or can it import a text file? Finally, once the deed plot is established in the app, is there a way it can be imported and viewed in Google Earth.”

1. The Deed Calls & Stakeout app can help you stake out each node on the deed plot created by entering the deed calls in the office. iPhone’s GPS does not provide high accuracy. Some external Bluetooth GPS receivers, such as the Dual XGPS 150A, Garmin Glo and Bad Elf Pro claim 1-3 m accuracy. Higher accuracy ones like iSXBlue II GNSS and EOS Arrow are in the high price range.

2. Deed Calls & Stakeout can open a .dcf file. The deed calls you enter into the app are saved in a .dcf file, which is a text file that can be viewed and edited. Therefore, you can follow the same format to prepare a deed calls file for this app to open. Make sure the angle and distance unit settings in the app match those used by the deed calls.

3. Deed Calls & Stakeout does not provide KML export. It will export to DXF, which can be converted to KML. For details please see our blog article at this link.

Using Stakeout iCMT to stakeout a property

“Although the buying price for the iSXBlue II GNSS is too high for our project, I did find a company in OH, that would rent it too me for a very decent price for a week. . . . . I would like to be able to put in precalculated GPS coordinates (say about 30-50 of them, one every 5-10 meters), on the iPad, and then use the iSXBlue II GNSS and iPad to tell me when I have reached them on the property, so I can physically mark them on the ground. . . Can Stakeout iCMT communicate with the iSXBlue II for some audible or visual help when reaching a preconfigured GPS point?”

If this is the only type of project (i.e. stakeout) that you will be doing using your iPad, you could get the Stakeout iCMT app from the App Store.

You will be able to put in pre-calculated GPS coordinates into Stakeout iCMT on the iPad, and then use the iSXBlue II and iPad to help you physically mark them on the ground.

The steps you will be doing are:
1. Use Add Point by Coordinates to enter the latitude-longitude coordinates of the points. The accuracy of these coordinates is important.
2. Create property boundary line by using Add Line Manually and snapping to the points.
3. Use Line Stakeout to go from one node to the next on the property boundary line.

On Page 17 of the Help document you will see that you can set the distance tolerance for the app to notify you when you get within that distance from the target.

Is there a more accurate GPS receiver to use with your apps?

As you know, the built-in GPS of the iPhone and iPad with GPS are not quite accurate. It is adequate for helping you get to the vicinity of a target location or for mapping a large area to obtain the acreage. The next best thing to do is to connect the iPhone or iPad to a compatible external consumer-grade GPS device that provides 1-3 m or 3-5 m accuracy. The Dual XGPS150A, Garmin GLO GPS + GLONASS and Bad Elf Pro belong to this category.

To obtain sub-meter accuracy using your iPad or iPhone with our apps, such as iCMTGIS II, iGPSGIS II, Utility Data Collection, Farming GPS GIS, Forester GPS GIS, Stakeout iCMT, Deed Calls & Stakeout, etc., there is an iSXBlue GNSS supplied by Geneq Inc. that will work with these devices via Bluetooth connection though it is rather expensive.  Please click on this link to see the product description. (2015 Edit: EOS Arrow will also work with iOS devices.)