How to include Latitude and Longitude for text file import

iCMTGIS III, iCMTGIS PRO, Utility Data Collection, Farming GPS GIS III and Forester GPS GIS III will let you import data into a Point Feature Topic via a text file. The text file can include latitude and longitude values. How these values should be presented in the text file depends on whether you have selected Degrees or the DMS format as the active angles unit in the app.

With the Degrees format, simply present the LAT LON values as decimal numbers. West is designated with a minus sign ( – ). For example:


With the DMS format, make sure the Degree unit is represented by ^, the Minute unit is represented by ‘ and the Second unit is represented by “. For example:

44^32’40.43″ N
123^06’50.65” W

To have these values interpreted as LAT LON coordinates, assign the field names “Latitude” and “Longitude”, respectively.

Generally, you can generate an Export Preview for a similar Point Topic to see how an import text file should be formatted for the options selected.


How to use iCMTGIS PRO to collect the points I require and then export the X, Y and Z data in a spread sheet?

1. Make sure your Arrow device is paired and connected with your iPhone/iPad as per the manufacturer’s instructions.

2. Under Setup – GPS mark the check box for Enable the external GPS, select the EOS GNSS receiver and use the protocol named com.eos-gnss.positioningsource.

Setup the threshold values accordingly (PDOP, RMS, etc) based on required accuracy.

Tap on the GPS icon at the top and select Turn GPS On. This will connect the app to the GPS receiver.

When prompted, select “Allow”.

3. Tap on the Topic Menu icon at the top and select New Topic.
Change the Topic Name to “GCP” for example.

Tap the Add button and change the Field Name to Control Number.
Tap the Add button then tap the little pull down arrow and select Position_X.

Tap the Add button then tap the little pull down arrow and select Position_Y.

Tap the Add button then tap the little pull down arrow and select Elev_Z.

Tap on OK.

4. Tap on the GPS icon at the top and select Collect.

5. Tap on the New button then tap on the little pull-down arrow and select your Topic Name (e.g. GCP).

6. The longer you occupy a station, the better the accuracy of the averaged position. Default is 20 seconds. This means you will stay at that location for 20 seconds without moving the GPS receiver.
Tap on OK.

7. Double-tap the Control Number field and enter the GCP number.

8. Tap the Store button. The app will start collecting GPS fixes.
At the end of the session it will store the point location.

9. Go to the next GCP and Tap the Store button to record that point.

10. When done recording all the points, tap the Exit button.

Tap the right-most icon at the top to display Sheet View.
This is the data you will be able to export.

Tap on Main Menu and select Job then select Export.
Select the Excel file format.

If you would like to export data to a text file, then tap the Topic Menu icon at the top then select Export Text File.

Tap the Export Preview button to see what you will be getting in the text file. Tap on OK to complete the export.


“I’m hesitant to spend $300 for the pro app if the $95 or $200 apps will suffice but I’m having a difficult time finding a comparison of features among the apps.”

Built-in Attributes 512x384

The three apps in the iCMTGIS-series all provide real-time GPS/GIS data collection and mapping functions. They will let you add user-defined Attributes for the recorded Features either manually or via a Feature List (attribute table). They will let you import and export Shapefiles. The differences are in the additional functionality provided by the more expensive apps.

If you just need to use GPS to map Points, Lines and Areas and record their associated descriptions, iCMTGIS II will do. iCMTGIS II can display the built-in Apple Map as background. If you would like to use an off-line geo-referenced background image, you will need to first use the optional PC-GIS software to convert the GeoTiff, GeoJpeg, ECW or MRSID files to the .pim file format. The .pim map can work in the “moving map” navigation mode. (Many of our existing customers already have the PC mapping software.) iCMTGIS II only works on an iPad device. Its iPhone equivalent is the iGPSGIS II app.

iCMTGIS III and iCMTGIS PRO can run on iPad and iPhone devices. These two apps will let you load a GeoTiff image or a .pim image as background map. They also provide a built-in Attribute List from which you can choose as additional Attributes for the Features. One of the screen shots displayed here shows the current list of built-in Attributes that you may elect to include in the data records for the Features recorded using GPS. Other additional functions are also provided in these apps, which help you stake points/lines/areas, create Features by entering distances and bearings, as well as classify, sort or perform a search on the Features in a Topic layer, import and export Point Features via a text file, etc.

GPS surveying using iPhone

GPS surveying using iPhone

iCMTGIS PRO has all the functionality of iCMTGIS III plus the Contour/Volume and Create Buffer functions. What sets it apart from the other two apps is that it provides the ability to receive the NMEA message stream directly from a few specific external GPS receivers. When the “Enable the External GPS” option is selected, iCMTGIS PRO will get the GPS information directly from the external GPS receiver rather than the iOS CoreLocation. This enables it to display a GPS status bar in real time.

At this time, EOS Arrow GPS receivers and Geneq iSXBlue II + GNSS can work in the “Enable the External GPS” mode. To use the EOS Arrow 200 and iCMTGIS PRO for RTK work, you must use the free EOS Tools Pro app to connect to the RTK network.

iCMTGIS III for Tree Inventory

“I am searching for a mobile GIS app to enable me to do some forest inventory. The property is about 100 acres. I am hoping you can help me determine which is any of your apps will be suitable: iCMGIS II or iCMTGIS III or iCMTGIS Pro. I invested in an Ipad and Bad Elf Pro+ Bluetooth GPS. I considered competing products GIS Pro and iGIS but ran into issues. I need to inventory tree features and collect attribute data by walking 20 meter (60 feet) wide strips on the property.
-the GPS function of the app guide me along lines 20 or 40 meters apart
-Import an image and geo-reference it for use in navigating my transects. I can convert the attached PDF to .tiff with adobe acrobat. I cannot afford to buy one of your mobile apps and also your PC-GIS, just to enable geo-referencing, so I hope there is a more affordable solution for that? I have used the app MapTiler to georeferenced the map.
– GIS function of recording the location of features and attribute data.
-ability to customise the data input tables for layer attributes. To name variables eg: tree number, species, diameter, height,
– ideally attach photographs to the records.
-I need to be able to export the GIS data to excel or csv file to process the data.”

Ideally there would be a forest inventory app for the iPad that works similar to our CMT-Forester 10 (for PC) and CE-CRUISE (for Windows Mobile PDA) software package. These apps will work up the weight or volume based on the timber cruising and the computation method used. However, we have not produced such a timber cruising app for use on the iPad.

As you will be exporting the tree data and do the computation elsewhere, iCMTGIS III may be a viable solution for you.

iCMTGIS III will let you import a Geotiff (geo-referenced .tif) image file for use as an off-line background image. Our PC-GIS X provides the function for geo-referencing a raster image. If you purchase iCMTGIS III from Apple, we can provide the PC-GIS X to you at a discounted price.

iCMTGIS III provides the Point Stakeout function to guide you to a location, and the Line Stakeout function to guide you along lines.

It allows you to take and attach photos to Features.

It will let you export Point Feature data to a text file that you can import into Excel.

It provides GIS functions for recording the location of Features and Attribute data.

It will let you customize the data input tables for layer attributes, and name variables eg: “tree number, species, diameter, height,” As you are collecting tree data for various transects, you will also need to add the Transect_No as an Attribute.

Please keep in mind that the mapping app will treat each tree as a separate Point Feature. In other words, it needs location information for each tree. Here are two ways to associate each tree with a location:

1. Record GPS position data for each tree and record Attribute/Values based on a Feature List. This may be more time-consuming, and you most likely are not interested in the actual location of each and every tree.

2. Define the Attributes for the Tree Topic layer. Roughly digitize a tree by tapping on the Add Point manually icon then tapping on the PickGPS icon. This will add a new record to the Sheet View for that Topic, and you can enter the Attribute information for the tree. Repeat for all trees to be inventoried.

When data for the Tree Topic has been collected, you can export it to a text file for your PC software to process.

Will iCMTGIS PRO let us write a text file to the iOS device?

“We are looking at your iCMTGIS Pro to work with EOS Arrow 100 and it appears we can write a text file or shape file to the IOS device correct?”

Yes, this app will import and export Shapefiles for Point, Line and Area Feature Topics.

For a Point Topic layer, it can import and export the Feature data from and to a text file.

iCMTGIS III 1.1.2 update

iCMTGIS III has been updated to 1.1.2.

In this update we fixed a bug in the recorded time based on the data collection time mode. The Date and Time recorded with the GPS data did not match the setting of Local Time or UTC Time in the app.

The Date and Time for the recorded GPS Features are added to the list of built-in Attributes so you could add them to Sheet View, if you wish. The Date and Time will also be shown in the Feature Properties screen.

We have added the ability to display date in accordance with the Region setting on your iPad or iPhone.

We have also added a filter for exporting Point Feature data using the Export Text File function on. iCMTGIS III will let you apply one or two text export criteria based on the Feature ID.

iCMTGIS III Text File Export

iCMTGIS III will let you export the data records of a Point Feature Topic to a text file. It will also let you import Point Feature data from a text file prepared in the proper format.

A user asked if a filter could be added for the Export Text File function. This will permit them to export only the newly recorded Features for the work day.

In the next update of iCMTGIS III the app will let you apply one or two text export criteria based on the Feature ID.