Deed Calls & Stakeout updated to support 64-bit architecture

The Deed Calls & Stakeout app version 1.0.5 is now ready for download.

This app has been recompiled to support the 64-bit iPad and iPhone devices.

Things You Didn’t Know About GPS: By Calum McClelland

In this week’s newsletter from NGS CORS there is an article that you might find interesting to read. You can click on the following link:

https://www.ngs.noaa.gov/CORS/news.shtml

and look for “NOAA-NOS-NGS-CORS Weekly Newsletter
Created On UTC Date: Tue Apr 18 20:19 2017”

In the Newsletter scroll down until you see “Things You Didn’t Know About GPS: By Calum McClelland”

What to do when GPS signals are blocked by heavy canopy?

“I am currently using the program to plot a property line for our vineyard. One of the corners of the property is tucked deep within some woods where satellite reception is poor. Therefore, the program is not allowing me to record the point. Is there any way to work around this? Perhaps increase the rms limit to within several feet so as to allow for data collection? Thanks for the help.”

This is why iCMTGIS PRO provides the Traverse function to deal with a situation where GPS signals are blocked by heavy canopy. How far is this corner away from a point at which you have good satellite signal reception? What you could do is to record a good point at the periphery of the wooded area then measure the distance and bearing from this point to that corner. Then you will use the Traverse function under GPS – Collect data to specify the GPS point as the starting point and enter the distance and azimuth or bearing information to create the corner point.

You could try and see if you could record the point by relaxing the RMS limit and the DOPS limit, but the position accuracy will be compromised.

If the accuracy requirement of this point is not strict, and you are able to identify the location of this corner on a background map, you could digitize it by using the Add Point Manually function. Zoom in to better place the point.

If you have a deed document including the property description (distances and directions around the perimeter), you could use the Deed Calls function to enter such information in iCMTGIS PRO to draw all or part of the property boundary as a reference for digitizing the corner point.

After you have created the corner point, you can add it to the remainder of the GPS’d property boundary Area by using the Insert Node function.

How do I switch to Alaska Region data form from the Arid West that is default?

You want to make sure you start a new Job in the Wetland – Stakeout app before switching to a new form template. To do so, select Job – Open Job then tap the New button. Enter the Job name or accept the one provided then tap on OK.

From the Main Menu, select Report then select Import from Template. The forms for the various Regions are provided as templates. Please select the appropriate one to import into a Job to use.

Custom Symbol Assignment in iCMTGIS PRO

“I have two clients using iCMTGIS Pro and they’re asking how to save custom feature symbols, colors and patterns in a feature list. For instance, how do you manage various patterns/colors for several area features, lines and points?”

In the Help document please select “Set up Feature List”.

Under “Editing a Feature List”, there is this instruction:
“Mark the Activate Pattern checkbox to see the Pattern column displayed in the Value section.” After marking the Activate Pattern checkbox,  you will be able to assign different symbols, colors and patterns to different types of Points, Lines and Areas on the active Topic layer.

After you have saved the Features List, you will be able to select that Feature List to use with a Job. You can do so in the Job Setup screen after selecting Job – Open Job.

If the clients are looking to create their own custom symbols, then they would need to use PC-GIS X to edit the symbols on one of the symbols pages (such as Forestry1, Forestry2 or Surveyor) then use iTunes to copy the corresponding symbols library file to the documents folder for iCMTGIS PRO. For example, for the point symbols, the file names corresponding to Forestry1, Forestry2 and Surveyor are cmtpnt01.lib, ctpnt02.lib and cmtpnt03.lib, respectively. Please note that these files are case sensitive in iCMTGIS PRO. Close the app by double-clicking the Home button of the iOS device. Then reopen the app to see the available new symbols.

App for entering heading and distance information from a platt map

“I want to find and map my property lines, I have 16 acres of woods and wetlands. I have located one survey marker and I have a platt map of my property with headings and distance to the next corner. Which one of your products would let me create a waypoint at the survey marker to use as the starting point and then enter the rest of the heading and distance information so that I can walk and mark my property lines and corners?”

The Deed Calls & Stakeout app will let you stand at the survey marker and get the GPS coordinates of that point as the starting point for entering the deed plot information (bearing and distance). If your deed document uses magnetic north, then you should enter the declination angle for your location into the Orientation field in the app. Then you can use the Line Stakeout function in the app to help you walk and physically mark your property lines and corners. This app works on iPhone and iPad devices.

Keep in mind, though, that the accuracy of your work depends on the GPS receiver used, and the built-in GPS receiver of the iPhone and iPad devices is not that accurate. Some of our app users use a compatible external GPS receiver, such as the Dual XGPS-150A or the Bad Elf GPS, to get 2 – 5 m accuracy. GPS receivers with sub-meter precision, such as the iSXBlue II and EOS Arrow, cost a great deal more.

Stake out using iPhone device

“I search application to stakout a polyline with my iphone. I see you make this for ipad but i don’t see for iphone.”

The Stakeout iCMT app can run on iPhone and iPad devices.

If your polyline is stored in a DXF file or as Shapefiles, you can import it into the “Stakeout iCMT” app and let the app help you stake it out.

The accuracy of your work depends on the GPS used. The iPhone GPS is not quite accurate. You can get a compatible external Bluetooth GPS (such as Dual XGPS-150A or Bad Elf GPS) to achieve about 2 – 5 m horizontal position accuracy. High-precision GPS receivers will cost a lot more than these GIS-grade GPS receiver.