GPS Features — Global Mapper Forum

What UTC Time format is this??

TheAli — Tue, 16 Apr 2024 11:11:18 +0000

Hi, i have data from a NMEA source creating a live tracklog. Have selected to save the tracklog and the resulting file has the UTC Time in an unusual format. Is this Julian day and i've lost the decimal places or something? Would like to recover date and time from the data.

Please excuse filename spelling! I've been forwarded this from guys in the field doing a survey. The date should be 14 April 2024 if that helps.

Thanks.

default style v26

udraft — Wed, 30 Oct 2024 17:39:37 +0000

Since installing v26 all my existing area features show a fill. Don't want that. They are all Feature Type Unknown with no style applied, but apparently it's using a default style. Easy enough to fix, but one at a time is too much effort.

thanks!

Global Mapper Mobile Pro 2.2

mikegeo — Thu, 30 Jun 2022 02:35:23 +0000

Trying to get a Garmin Bluetooth GLO 2 working on a IPAD Air to use the Mobile Pro.

GPS connected and paired before I start the app but when I go to advanced GPS and connect to device it says "No GPS devices detected". Have hunted the internet but cant seem to find a solution after trying many things. Wondering if anyone else is using the GLO or is it not compatible with mobile pro

GPS connects ok and seems to work on google maps when I test in offline mode.

Only thing I have not tried is to uninstall the app, if I do will I still have the license.

Have sent a couple of emails to support but no answer

Cheers

GPS Lost When Switching Apps and Using GPS Centered Function

BrianZ111 — Tue, 22 Dec 2020 04:57:14 +0000

Hi, I'm using a Pixel 4a 5G phone running Android 11 and I'm having a problem losing GPS in Global Mapper Mobile. It occurs when I switch apps and then switch back to GMM and choose "GPS Centered". After that the textbox where the GPS info was reads "GPS: ???" and my position disappears from the map. Another thing that triggers the same issue is if I press and hold on the map. The camera app opens and then when I return to GMM, it's lost GPS. I don't even have to choose "GPS Centered" to lose it in this case. The only way I've found to get it back after this happens is to force quit GMM and reload it. This is pretty much unworkable due to the number of times I need to switch apps and the difficulty of needing to zoom back in to the location after a reload.

I have a version of Global Mapper desktop that predates the mobile app so I'm currently evaluating a trial of the latest version and deciding whether to upgrade based on if the mobile app can work in the field for what I need. There are some other things I'd like to see added to Global Mapper Mobile so I didn't have to switch between different apps as much but I'll leave them for later messages as they are not as critical as fixing this problem.

Thanks

Brian

RTK coordinates from Emlid receiver

htuser — Fri, 29 May 2020 08:02:21 +0000

Dear all,
I would like to use Global Mapper Mobile Pro Android in fieldwork so i would like to know if it can accept. This require to bypass internal device GNSS module and connect to Emlid RTK receiver using Blutooth.
Emlid already publish guidelines for ArcGIS collector: https://emlid.com/collecting-data-with-reach-and-arcgis-new-video-guide/ but we would prefer Global Mapper Mobile Pro. Please let me know for my decision.

Thanks in advance

Does Global Mapper Mobile Pro convert from WAAS (ITRF) to NAD83 on the fly?

bisenberger — Sat, 12 Dec 2020 20:46:32 +0000

I have a survey grade GPS that can use WAAS correction, but WAAS is based on an ITRF frame, so that a WAAS position varies from the NAD83 position by about a 1 meter. My map data is typically referenced to NAD83. Can Global Mapper Mobile Pro project the incoming GPS data that is corrected with WAAS to NAD83 on the fly to eliminate the 1 meter position difference?

measuring between point a to point b

Drainage — Fri, 25 Sep 2020 12:26:21 +0000

Is there a function to be able to measure in field using gps somewhat like a tape measure would it be a possible add

TCP/IP socket connection

Bob3716 — Mon, 18 Nov 2019 13:51:17 +0000

Hello,

I did not find it in Global Mapper v 19, is there a version where I could connect a TCP/IP NMEA socket to Global Mapper GPS input ?

If not, it should really be implemented (like it is in QGIS GPS Tools standard Plug-In, called gpsd), as COM port belong now to the past, and event USB is not convenient when developing applications in a network environment.

Transferring GPS data from global mapper mobile

Joey — Sun, 10 Mar 2019 08:39:00 +0000

Hi Guys,

I am using Global Mapper Mobile to collect data in the field, and I am using the 'GPS auto-track feature' to track my position. I have the auto track feature set to record my position every 30 seconds however when I transfer the GPS data to my desktop the time of the position recorded is not an included attribute. This is important as I need to correlate the time of the GPS position with measurements taken in the field. Is there anyway I can include the time of the GPS auto track position as an attribute when I transfer the data over? Any help is much appreciated.

Custom Scaled Vessel Shapes - GPS tracking

mikemueller — Mon, 11 Jan 2016 21:23:05 +0000

I am interested in creating a custom GPS shape in the place of the standard triangle that is displayed. I have successfully modified the shape in GM17 to include the many options available in the symbols library.

Two questions:

Is it possible to create my own custom shape (a tub-boat for instance)?

Is it possible to scale the custom shape through the zoom range? For example, the tugboat is 80'x30' and I'd like to be able to display a scale representation of the vessel in real-time over the background imagery we have imported to GM.

Any my help much obliged.

Sending Points and Area Files to Garmin Montana 680 Unit

zikomo — Thu, 08 Nov 2018 12:41:42 +0000

Dear All, Thank you for letting me join this forum, I'm a newbie in the world of Global Mapper and learning how to operate the software daily.

Currently I have created area shapefiles and within them highlighted points of interest.

I have no idea on how to send those coordinates and points to my new montana 680 Garmin device so I can simply hand the device over with the pre-loaded data to our geologist and he can conduct ground tests.

Many Thanks All.

Mr Masters

How to convert Map from MapInfo.tab to GM file “Polish MP” to Gps garmin

alberthr — Sat, 06 Oct 2018 19:08:21 +0000

I try open open data “tab” and export layer to new file Garmin Vector map (Polish MP), but i hv notification “one or more features were exported with an unknown MP type code which may cause errors when building the map with cGpsmapper.

change area vertices from mercator to geographic

axcb — Fri, 05 Oct 2018 22:50:12 +0000

I've loaded in a shapefile of the coastlines of the world (where the central meridian is at 180), but I need to extract data from Fiji - half of the country has a longitude of about 179 W, the other half has a longitude of about 170 E, so there are some problems with it crossing the meridian. (This would be solved if there were a shapefile online where the central meridian is at 0, but I can't find one.)

After going into the settings (Tools > Configure > Projection) and changing the central meridian to 180, the projection looks fine and I can make an area feature. But when I make it, the vertices are in mercator coordinates, and I want to export the area feature in geographic coordinates.

Making area features on either side of the central meridian gives me vertices that are in geographic coords, but right when I cross the meridian, the vertices are mercator values. Is there a way to make an area feature crossing the meridian while keeping geographic coords?

Thanks for any suggestions!

Getting AIS into Global Mapper

marky9074 — Sat, 04 Nov 2017 08:52:03 +0000

I thought I would share my solution for getting AIS into Global Mapper. Firstly some research was needed to find examples of the sentences that GM was supposed to support. I could only find $PRAVE and $PCDLI ($GPWGT does not see to exist, and I didn't readily find information on $HID sentences). Waypoint NMEA $GPWPL would require more formatting that I was prepared to do.

Example $PRAVE Sentence:
$PRAVE,0001,0001,3308.9051,-11713.1164,195348,1,10,168,31,13.3,3,-83,0,0,,*66

Example $PCDLI Sentence:
$PCDLI,1016,20120406,184012.50,29.8043519295,-95.56066857583,0.9,312.5,-0.5,1.5,-1.2, 2,8,1.1,9,005.5,309.1,0133,20.5,13.2*7F

So, I had a standard AIS 38400 baud serial connection into the workstation. I then download and configured AISDecoder (http://www.arundale.com/docs/ais/ais_decoder.html). This took some work, as the string needs to be 'tagged' and reformatted. In the end I had the format set as 'GIS filtered' and 'Tagged'. Within the 'Output Tags' I selected the following:

lon_1_2
lat_1_2
mmsi_0_2
vesselname_0_2
receivedtime_0_2
heading_1_2
speed_1_2
course_1_2

To use the tagged format, one has to create a 'Tag Template File'. This was a lot of trial and error, but eventually I worked out the nomenclature and created a formatted string to output, saved as PCDLI.xml, then loaded into AISDecoder:

$PCDLI,[mmsi_0_2],,,[lat_1_2],[lon_1_2],,[heading_1_2],,,,,,,,,[course_1_2],,,

As a test I output to file, and tested the output using the GM 'Read From File (NMEA Format Only)' option. I was very surprised to find that this worked (even though I had seemingly broken the format description by placing the MMSI number in the ID field, which documentation implied was only four characters long). Also worthy of note, is that GM seemingly ignores missing fields, so it is not strict compliance (thankfully!).

Following this, I installed NMEARouter (http://www.arundale.com/docs/ais/nmearouter.html) and created a virtual serial port (configure/VCP/create), then configured AISDecoder to output to UDP (127.0.0.1 port 39421) and in turn configured a UDP input connection within NMEARouter (configure/connection/new). The next bit was a little trial and error.

I had to create a new connection, using the virtual COM port. I could see lots of new ports, but the one that worked was labelled CNCA <-> COM5 (I already had a physical COM4 from a USB to serial adapter). This 'Connection' needs to be set to Input/Output. Then within NMEARouter you need to configure a route (configure/route/new) which is literally pointing the input to the desired output.

All that remains is to hit 'Start' on both AISDecoder & NMEARouter, then configure GM to pick up on the virtual COM port (before this I tested in PuTTy just to make sure I was getting data incoming on the virtual serial port). To my surprise it all worked!!

Vessel location

frank@marshall.ms — Wed, 04 Jul 2018 19:23:36 +0000

When in gps tracking is on, and the map is oriented heading up, is it possible to specify the vessel location on the screen? I'd like to get it vertically lower on the screen, and centered horizontally, seeing more of what's ahead, and less of what's behind me.

Global Mapper Mobile:

soilmandan — Fri, 30 Mar 2018 01:52:08 +0000

I have 2 licenses ONE IS VERSION 18...THE OTHER VERSION 19.
In version 19 I generate contours from LIDAR and mix in CAD property lines. The download to iPhone. GPS marker shows me in the correct location in the field.

However, the version 18 computer does not work correctly. All is created fine. It also downloads fine. However, the LAT / LON is incorrect. It downloads showing a location near the equator....I'm in Ohio. So, the LAT/LON somehow gets to be incorrect. I work using Ohio state plane coordinates. What magic key do I use to rectify?

Tranforming WGS84 to EPSG 5234

geeth — Fri, 29 Dec 2017 12:02:00 +0000

I just want to know how I convert WGS84 datum into EPSG 5234 Kandawala datum. (Sri Lanka)

Mobile Mapper GPS

bjcwheeler — Fri, 22 Sep 2017 21:36:55 +0000

Just started to work with the Mobile mapper software on my iOS device. I can click on the icon to show location, but curious why that doesn't zoom into your current location? What am I missing? Doesn't make sense that I have to zoom into my location manually. I was hoping this app would allow me to push out large datasets to my end users with good mapping capabilities. I would say I am in the early stages of reviewing the application, but find it extremely lacking in any real GPS mobile app functionality. Will continue to research, but wondering if folks have implemented this newer tool as part of a field data collection configuration.

Adding lat long display on map

DiverBrady — Mon, 01 May 2017 21:25:13 +0000

I am trying to move from ArcMap to GM. If I add a point on my downloaded image with digitizer tool how do I get the lat long or any coordinates to be displaced next to the point - on the map. Thanks

More GPS Information with Nmea filter

JEFFC — Mon, 24 Apr 2017 10:03:27 +0000

Hi
is it possible to add some custom information in the GPS Information windows ?. For instance, the accuracy "EPH" ( by the way , you mean HPE or Horizontal Position Error?) is not sufficient in my case.
I would like to show for instance, the deviation of Lat, Lon & Alt Error that we can catch from the $GPGST ( or $GNGST for GNSS) NMEA sentence.
Regards

Windows Sensor Location & Global Mapper

htuser — Fri, 07 Apr 2017 00:10:50 +0000

Dear all,
I've tested Global Mapper 14 with a Windows 8.1 Tablet, but it was unable to read GNSS receiver (Broadcom GNSS). Please, does this problem has been solved in newer Global Mapper versions?
Thanks in advance

Point Cloud Rectification by GCP

Marshall — Tue, 07 Feb 2017 14:01:37 +0000

We use drones for aerial survey of mine sites and measure volumes to track production volumes and stockpiles.

When I import point clouds from the same drone survey, at the same location, there is always a significant margin of error between the surveys, which can be reduced by use of Ground Control Points (GCPs).

I believe that a point cloud can be "offset" in that coordinate and elevation values can be scaled, adjusted.
1. How is this best accomplished?

Even though this above method will match the consecutive surveys up much better, still I expect that some margin of error exists that could be corrected by GCPs, effectively "rectifying" the point cloud the same way I rectify an image overlay by using 4 stationary, constant corner markers.
2. Can a point cloud be rectified rather than offset/scaled?

LING OF SIGHT WITH GNSS

yawims — Sat, 12 Nov 2016 06:58:17 +0000

Has anyone used LOS/View shed for GNSS Base stations calculations? This will involve using a DSM of the obstruction imported with the GNSS prediction Almanac...?? I doubt so.... please suggest the other tool( apar from GM) that can do so. Cheers Richard

Exporting data from Global Mapper to Garmin 401

supermrlefty — Fri, 23 Sep 2016 19:11:51 +0000

Hello,

I want to create a itinerary on GM using the "Create new line" feature with several points of interest marked by means of Points and then export it into my Garmin 401 in a way that will allow to see the trace I created on GM on my GPS, along with whatever point I created.

I don't know if my question is clear or not, but I've been looking around on the internet for at least 30 minutes and I can't find a way to make it work.

Thanks a bunch !

range ring around the vessel in GPS mode. Only in Geographic projection?

JEFFC — Wed, 29 Jun 2016 09:31:28 +0000

I can't have the "range ring" in the gps mode if I choose a UTM mode for instance. I can only see the range ring ( as a ellipse then) only in geographic projection;
it is normal ?
my GM version is 16.2.
Regards

Display Seapath GCA Nav-Data

naugustin — Mon, 02 May 2016 16:12:32 +0000

Hi all,
I got some Seapath GCA navigation files (a ship track) from a colleague that we like to display in Global Mapper 16.2 for a report.
Is it possible to load this kind of file directly into Global Mapper?
Here is the link to a sample file: https://www.dropbox.com/s/kfrsx7n82ui6nxe/COM12-Seapath-GGA-RAW_20160320-011444.Raw?dl=0

Best Regards,
Nico

Can a GM 17 logged 10x per seconds and my Global Mapper 17 hung every 10 mins.?

ACCUMAP — Mon, 04 Apr 2016 07:28:19 +0000

...

GPS SetUp using a GlobalSAt BU-353S4

emedley — Fri, 18 Mar 2016 19:23:37 +0000

I am having no luck setting up my GPS unit with Global Mapper V17.1.1. I used the GPSComplete driver application to define COM4 serial input, 4800 baud. The unit speaks NMEA 0183 2.xx etc sentences. (I have only the foggiest idea of what all that means.)

But I do know that the GlobalSAt BU-353S4 GPS unit shows my position on BING maps, even as I drive. So it works using those serial settings.

In GM GPS Setup I selected the serial option, 4800 baud etc. I tried with the NMEA.. etc. option and also the Automatic Selection option. The unit is not recognized. I get error message: "Global Mapper was unable to detect a GPS device. etc..." When I click "Information" choice in the GPS Dialog box I get the message attached. The message is puzzling... Beside the GPS receiver not being registered, I am not trying to do anything with PDFE maps etc. Note how the "PDFE bit of the message is chopped off, by the way.

I also tried to use my elderly Garmin GPSmap-76CS, and selecting the Garmin inputs on GM's GPS SetUp. GM does not recognize the Garmin unit even when I have uninstalled the serial connection for the GlobalSat receiver unit. The Garmin unit works fine. by the way. (I am aiming at uploading maps to it using GM so would like this GPS SetUp problem to be solved for both the Direct GPS receiver and the Garmin unit..)

All hints gladly accepted

Ed

Has the Course Line orientation issue when using Orient View to GPS Heading been identified / fixed?

seismic — Wed, 02 Mar 2016 21:27:45 +0000

Problem: Course Line continues to point as if in North up view when Orient View to GPS Heading is selected.

Regards
Eric

Import lots of strike and dip data

Lokart — Wed, 16 Mar 2016 10:49:00 +0000

Hello,

I am a geologist and wanted to use global mapper to make a map.
I went to the field and took GPS points of places where I took strike and dip measurements of faults.
Basically, I have all GPS and corresponding strike and dip data, and I wanted to know if it's possible to import everything in global mapper instead of computing everything by hand (because there is quite a lot of data).
If the previous one is not possibe; I have been able to import the GPS points in Global mapper. So is it possible to convert a simple point to a strike and dip?

I have global mapper 16

Thank you very much