User-defined projections

“. . . we would like to know by PC-GIS software possible to establish our Coordinate system (KTM Projection and GRS 1980 Datum) to use it in iCMTGIS Pro software?”

The KTM-KUDAMS projection for Kuwait is based on the Transverse Mercator projection. You can use the PC-GIS X software to create a user-defined coordinate system by entering the parameters for this projection. Then please copy the user_cor.sys file created by PC-GIS X to your iCMTGIS PRO documents folder. Then iCMTGIS PRO will let you select the user-defined coordinate system to use.

Direction of deed calls line segment

“I just bought Deed Calls Pro and I was wondering when adding a line segment with bearing information how to get the line to go the other direction. For example: N54°3740W draws the line in the wrong direction.”

Please note that, in the deed plot you are doing, the green node is the last starting node. The line segment does go from the green node to the yellow node in the NW direction. If you enter a long distance, you should e able to see the line labeled with the correct bearing. If you wish to change the direction, then change the bearing of the line segment.

Using iSXBlue II with iCMTGIS PRO

A customer using iSXBlue II GNSS with iCMTGIS PRO on an iPad mini 2 sent us a few question:

1) He wondered how to tell if the iPAD running iCMTGIS PRO is operating with the external SX Blue II.

With the iPad paired over Bluetooth with the iSXBlue II GNSS, tap on the GPS icon and select “Turn GPS on”. A GPS marker should appear and the app should issue a navigation beep once every second. This indicates that the app is receiving the GPS position data from the iPad, to which the iSXBlue II is sending the GPS signals.

Now, tap the GPS icon and select “Turn GPS off”. Select Main Menu – Setup then select GPS. In the GPS Setup screen, select “Enable the external GPS” then select “GNSS RECEIVER”. Set the threshold values as desired then tap on OK.

When you tap the GPS icon and select “Turn external GPS on”, a GPS status line should appear at the top of the screen, showing the number of satellites used, the PDOP value, etc. This indicates that the app is obtaining the GPS data directly from the external GPS/GNSS and not just getting the GPS position from the Apple CoreLocation.

2) With respect to the iSXBlue RTN NTRIP app, he asked, “I have this app and presume both your app and this one need to be open and running at the same time?”

RTK work means you are making use of the correction data sent out by a RTK network provider. Therefore, both the iSXBlue RTN NTRIP app and iCMTGIS PRO need to be open and running at the same time.

How can I make sure I’m capturing points meeting a PDOP threshold?

If you are using iCMTGIS PRO and an iSXBlue II or EOS Arrow GPS receiver, you can set the PDOP limit for GPS data collection as follows:

1. Turn off GPS from all apps on your iOS device.

2. Select Main Menu – Setup and mark the check box for “Enable the external GPS“.

3. Select the appropriate device protocol for the GPS receiver.

4. Tap on the pull-down arrow for PDOP Mask and select the desired PDOP Mask level. If you only want to record position data for which the elevation can be computed, then also mark the “3D Only” check box. Tap on OK to save the setting and close the screen.

5. Tap on the GPS icon then select “Turn external GPS on”.

iCMTGIS II closes after iOS 10 update on iPad mini

“I have a copy of iCMTGIS II, recently updated/last week, running iOS version 10.2.1 (14D27) on iPad mini/gen 2. With ‘gps on’ and upon tapping ‘Collect’ to collect data, the app closes and doesn’t allow data to be collected. The app remains open in the background, i.e. doesn’t close out, but upon selecting ‘Collect’ again, it repeats the same issue and will not allow data collection.”

We asked the user, “Have you tried uninstalling and reinstalling the iCMTGIS II app?”

The user replied, “the un-install/re-install worked. . . . thought of un-installing/re-installing but had never done that with an iOS app since it is a download from the app store, but now I know I can. thanks!”

It is possible that the iCMTGIS II app was still open when the user did the iOS upgrade. Before an iOS upgrade, it’s best to close out all running apps. You can do so by double-clicking the Home button then swiping up the displayed app screens.

How do I get acreage and Feature ID labels to show up for all of my area features?

The iCMTGIS III, iCMTGIS PRO, Forester GPS GIS II/III, Farming GPS GIS II/III and Utility Data Collection apps provide the Auto Label function on the Topic menu as well as the ability to add acreage as an attribute for a Feature Topic.

First, turn on Topic View and tap on the Topic of interest to highlight it.

Tap on the Topic Menu and select Edit Topic. Tap the Add button and select the built-in Area_Acres attribute from the drop-down list. Tap on OK.

Now tap on the Topic Menu and select “Auto Label“.

In the Auto Label screen mark the “Feature ID” check box and the check box for Area_Acreas in the Attribute List. Tap on OK.

The labels should show up in Map View.

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.