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Questions tagged [navigation]

Application of location and direction calculation to GIS. Including location and travel of vehicles, vessels, people and other craft.

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22 views

Loading and displaying NDS (Navigation Data Standard // SQLlite)?

On QGIS 3.4 (Windows), I would like to load and display NDS (Navigation Data Standard) data (attributes and geometry). I succeed in loading NDS data sample from openlanemodel. Via the QGIS DB manager,...
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0answers
11 views

Determine left/right based on headings of in & out legs

I'm analyzing roads layer to create navigation layer. Each vector Linestring segment has direction of traffic. Turn defined as where 2 directional segments meet. However, I find it challenging to ...
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0answers
63 views

Timestamp mismatch in the data recorded by Vlp16 with Ublox-M8T

Currently, I am working on Velodyne vlp16, for which I recently added UbloxEVK-M8T support. The setup is working fine but when I record the data from VeloView, the GPS timestamp is showing incorrect ...
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1answer
15 views

Simulating navigation bar in attribute table of ArcMap using ArcPy? [closed]

I want to focus on specific record in the attribute table when it is open. I have made several experiments with SearchCursor but that just selects the record, even focusing on the feature on the map ...
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1answer
38 views

Seeking GIS Navigation App for High Accuracy Data? [closed]

Are there any mobile GIS applications that I can use to navigate to high accuracy data on android? I would like to load layers - a .shp or .kml and use the map to navigate to points. It needs to be ...
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0answers
51 views

QGIS 3.4.3 touch zoom and pan

QGIS 3.4.3 touch zoom and pan missing from Map Navigation Toolbar is this a permanent loss or will there be a fix?
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0answers
66 views

Autonomous GPS navigation issues

I am trying to achieve autonomous GPS navigation on my RC car. I am using a very high quality GNSS/INS sensor (Advanced Navigation Spatial), from which I am getting lat, long and heading values. The ...
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0answers
86 views

Flat Earth approximation: forward and reverse formulas

For very small distances (< 100 m) I need to go back and forth between "polar coordinates" (i.e. bearing and distance) and "equirectangular projection". I'm not sure whether I understand them ...
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0answers
59 views

Can navigation apps use compass and orientation sensors to improve reactivity and accuracy? [closed]

I've had the impression that Google Maps provides more accurate walking navigation on Android devices which include a compass in addition to a 3-axis accelerometer and GPS receiver. Perhaps this is ...
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1answer
24 views

How to name a point where we are “back to the initial route”?

I have an initial route, that I leave (for instance in order to refuel). How to name the point where I'm back on the initial route?
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1answer
356 views

Converting GPS track to turn by turn directions

Working for a client on a tracking package for delivery vehicles, I've been given an interesting requirement. Over the past several months, we've been collecting telemetry from the vehicles, ...
1
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1answer
35 views

Seeking Mobile App to insert customized roads for navigation?

I want to know if there is a mobile app (for cellphone) where I can insert my line features (roads) and polygons features (fields), all in vector form (.shp) and somehow navigate with that information....
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0answers
83 views

How to calculate if a turn is required from a set of coordinates?

I have some polyline data that represents a navigation route generated using Dijkstra's algorithm. Along this route I would like to calculate anytime a turn is required. Ideally, this would be some ...
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4answers
422 views

Points shapefile from QGIS to Android?

I have a points shapefile in QGIS with 40 groups of 20 points each (total of 800 points). For each point I have stored many information. I need to check this information and add more moving on the ...
3
votes
1answer
280 views

How to create turn-by-turn directions from a generic polyline route? [closed]

I have some polyline data that represents a navigation route generated using Dijkstra's algorithm. Along this route I would like to calculate anytime a turn is required. Ideally, this would be some ...
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0answers
51 views

Why many in-car navigation systems choose to go through the city center?

Most of the in-car navigation systems I've been using prefer to select an itinerary that goes through the city center, rather than getting around. And this is the case while the "Fastest" (not "...
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1answer
135 views

Why is the CORS coverage density in the US is so high?

According to the data I found online, it appears that the density of CORS (Continuously Operating Reference Stations) in the US is significantly higher compared to other countries. Why? (NOAA ...
5
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1answer
891 views

What are all the straight lines on old nautical charts?

I was checking out this old VOC chart, and I couldn't help but notice a pattern that I've seen on most nautical charts of the time: lines that to me seem to be just every possible line one can draw. ...
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1answer
66 views

Simple Linux desktop navigation system for tracking a drone

Trying to build my own ground control station (GCS) for different drones I have. One is a boat and the other a plane. I have looked at the GCS's available and they are great, but I want to do ...
1
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1answer
49 views

Road Network with 4th & 5th road level (small agriculture roads & footpaths)

I have a need to use 4th & 5th level roads (small agriculture roads & footpaths) for Germany and the only provider I could find is the Logiball. Is anybody aware of another provider?
2
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0answers
58 views

Inland shipping GPS data, flag upstream/downstream movement [closed]

In the context of greening the inland shipping industry I am analyzing GPS data on moving ships. For these ships I would like to separate the data for upstream/downstream movement (up/down river). ...
1
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2answers
538 views

Interactive shapefile based map

I'm developing an interactive web-based navigation application which user can search locations and navigate from point A to point B by an online map. The routing algorithm (find shortest trajectory ...
0
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1answer
501 views

Reading GPS data from iphone and save data into computer?

I would like to use my iphone for navigation. I want to read GPS data (latitude and longitude) from iphone and save the data into my computer to use it for navigation. I am using Matlab in my ...
1
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1answer
134 views

Routing Engine / data for hiking trails (Austria)

I currently use OSRM for the routing in my apps. This works well for car/truck routing. However, I have an upcoming project that requires routing on hiking trails as well. Are there any available ...
1
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1answer
702 views

How can I transfer shape or database files to Terrasync without Pathfinder office?

I have point data in ArcGIS that I need to get onto my Trimble GeoXT (with TerraSync Standard). I don't have Pathfinder Office. Is there a way to transfer the data over so I navigate to the points?
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0answers
55 views

walk me through tdoa [closed]

I'm working on a TDOA application. This is just something in my free time to see if my hardware can accurately do it and it sounded like a cool challenge. Regardless if it looks possible or not, I'm ...
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0answers
15k views

Key difference between NAVIC Indian Regional Navigation Satellite System (IRNSS) and American Global Positioning System (GPS)? [closed]

What's the key difference between NAVIC The Indian Regional Navigation Satellite System (IRNSS) and American GPS system? Radio Frequency Accuracy guaranteed Modulation Area Covered Engineering ...
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0answers
262 views

How can I position gps point on svg (or any other special type if exist) scheme of building?

I have an indoor map of a building in svg and this is an only scheme of a building, there is no google maps or any other maps. But I need positioning (navigation) by gps coordinates in this scheme. ...
3
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0answers
12k views

Can I use google maps navigation within my app

I am considering building an app which includes google maps. The app functions by tracking the GPS location of the vehicle and showing it to the respective user on the Android app with some additional ...
1
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1answer
552 views

Navigating to Lat/Long in QGIS with a relative coordinate system

It seems really fundamental, but how do I pan the map center to a decimal lat/long in QGIS? I would type in the lat/long at the bottom, but I use WGS 84/Pseudo Mercator to use the streetmap from ...
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0answers
143 views

Use preferred route from OSRM server

I added to an original osm.map my own routes (nodes, ways, relations). I need a way to retrieve from my OSRM server these routes (for navigation). I try to change the speed of my routes in order to ...
1
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1answer
136 views

Navigating a road network and avoiding u-turns

I've implemented a node-based A* search of a road network graph. I would like to penalize u-turns a places where bi-directional streets join together again, which I identify successfully via a match ...
1
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1answer
41 views

Standardized format for contributing street closure data to navigation apps

I am wanting to put together an application that will digest georeferenced road closure data. I am wondering if any such format currently exists for notifying google maps or other navigation ...
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0answers
250 views

Flat Map that can go thru North Pole

Is there any map SDK or tool that can show the navigation that passes through the north pole in a flat way? Basically If I use a Mercator projection map it is only flat and cannot show the north part ...
3
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1answer
59 views

What does it mean for two datums to be navigationally equivalent?

I read from NOAA that NAD83 and WGS84 are "navigationally equivalent" NOAA uses the North American Datum of 1983 (NAD 83) for all of its charts. This datum is navigationally equivalent to the ...
11
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3answers
3k views

How did sailors navigate before the Mercator projection (1536)? [closed]

The Mercator projection (1536) must be great for nautical navigation. It allows one to find a bearing and keeping this constant one should reach the target (if not in the shortest line). But how did ...
2
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0answers
732 views

Good GPS navigation app for iPhone with downloadable OFFLINE maps?

I am looking for a good GPS navigation app for my iPhone that will work away from wifi and cell coverage (GPS only) and thus allow me to download offline maps. Paid app is OK. Must Have features: ...
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3answers
780 views

World map with clear difference between land, sea and inland waterways

I'm looking for a free high resolution map that clearly indicates the land and sea in the world. I need it to calculate distances over sea between ports. Additionally it should also include inland ...
2
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2answers
98 views

Geocoding adresses under privacy concerns

I have a database of home addresses and service locations. People drive to the service locations. I'd like to create a map with transparent colored circles indicating the average drive times people ...
2
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5answers
1k views

Create my own navigation/routing system [closed]

I'm studding AI course and I need to create a routing or navigation program. I live in Barcelona and first at all I need Barcelona's street network data. I have found it here https://mapzen.com/metro-...
2
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1answer
1k views

OpenLayers3 Navigation control

I want to navigate the map using mouse drag. we did it in openlayers2 using navigator control. Does Openlayers 3 have navigation control? should I add it to map like Openlayers 2?
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1answer
295 views

Navitel Navigator 5.0 map file

I have Navitel Navigator 5.0 map file(.nm3) for navigation. Is ther is a way to open this file on PC? Do we have a software that works as a navigator for PC such as Navital Navigation for android.
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2answers
215 views

How can I navigate from my current position to a specific point with OpenStreetMap data under Android? [closed]

How can I navigate from my current position to a specific point, using OpenStreetMap data, running on Android? I also want to get updated current points until reaching the final point then navigation ...
1
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0answers
835 views

Developing real-time navigation App using QGIS API? [closed]

I want to develop a navigation application based on QGIS using C++, for live tracking. I think it is quite normal for GIS to do such things, especially QGIS as it is a very mature GIS platform. But ...
2
votes
1answer
1k views

NDS file format conversion to an executable GIS format

Could we open .nds files in any of the GIS mapping environment. it stands for Navigation Data Standards, having the navigation features stored in it. There are 2 types of nds file formats. One is ...
1
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2answers
2k views

Calculating Speed of Android device in Navigation mode using ArcGIS Runtime SDK?

I am working on a Navigation App and I am using ArcGIS runtime sdk for this. It looks pretty straight forward and I was able to create a simple app. Now I want to calculate the speed of the device ...
5
votes
2answers
5k views

Multilateration Code

I am currently writing some code to do multilateration using TDOA and currently struggling and wondering if anyone has any reference code that can be used as a test case with some sample data that I ...
3
votes
1answer
227 views

Worldwide places reachable by sea/ocean

I'm looking for a list of all populated places(not just big cities/ports) on the world that reside on sea/ocean. The list should contain the place name, latitude and longitude. Does something like ...
0
votes
1answer
61 views

Framework for navigation and routing for the US

I'm building an app that will have navigation and routing as a primary component (USA Based). Does anyone have an cross-framework experience or user knowledge on which of the top mapping engines/...
2
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0answers
263 views

Find Nearby GPS Navigation Route

I am developing a car pooling website. For that, I have created the database which has the different route options selected by different user. These routes are saved in the Database as Geography ...