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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Automatically navigation graph creating [closed]
I am recently intrestring in Indoor Mapping, and I came across Mappedin, whose innovative work particularly their data format and SDK impressed me. One of the features of Mappedin is its capability to ...
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Navigating to a point with cm accuracy
I am due to install some monitoring points for a field experiment. I have a GNSS receiver (Arrow 100) and so can record the location of my monitoring points with a high degree of accuracy. I am ...
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Extract polygons from TIFF file of depth model
I am trying to create a shapefile of polygons from a TIFF file using QGIS. The TIFF file represents a depth model of Denmark. I want to create the polygons based on a particular depth (-2 meters), ...
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Locking Scale when Panning using ArcGIS Pro
Is it possible to lock the scale of a map in ArcGIS Pro 2.9?
I'm manually editing a bunch of feature classes, so what I usually do is open the table, edit my field, then double click the next row ...
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Minimum number of satellites per constellation in Multi-constellation Navigation
Relating to my previous question, I'm trying to understand how the LS method work for multi-constellation GNSS trilateration/multilateration. I understand for 2 constellations, trilateration require ...
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Storing Line(2D) data in Navigation Data Standard format as geometry using SpatiaLite
Is it possible to store Line(2D) data in Navigation Data Standard format(with coordinate bit shift) as geometry into SQLite and also make use of SpatiaLite functions for querying?
I have to use ...
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Place marker on map - GeoTools 25-SNAPSHOT - Java 11 [duplicate]
I am using GeoTools 25-SNAPSHOT in my application. I have displayed a map in my application (raster). Now I want to place a marker (image or simple colored dot) on a map at a specific latitude, ...
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US 000 file type maps [closed]
I'm looking for a free enc so I downloaded this one https://charts.noaa.gov/ENCs/Agreement.shtml?US2EC02M.
After unpacking I have a file US2EC02M.000 and CATALOG.031
What should I do with those? I ...
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Determine if a great circle is on the left or right from a point defined by latitude, longitude and bearing
Given
A point coordinate on the map specified by latitude and longitude. Shown as "C" on pictures below.
Direction where this point is moving, specified by bearing in degrees (0-359), where ...
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Convert Google Maps KML to preferred format on a Hyundai Ioniq EV's BlueLink Map
I want to upload data for all Eduroam WiFi locations in Canada to my car navigation system which has an "Import Address Book from USB device" option.
I downloaded the current locations I ...
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What are these terms in Marine Navigation ETA, DTG and TTG?
Consider a scenario where a ship has to navigate and reach a specific destination. I have a route plan comprising of multiple route way-points through which my ship has to go through to reach its ...
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How do you create a line network with GeoJSON navigation point data
I have a GeoJSON point file for use in navigation. I need to create a line network connecting the points to their corresponding 'neighbors' in the data. I have looked for any sort of plug in or ...
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Calculating direction for points (lon/lat) in a perfect circle (shape) north of equator?
I have perfect circles in lon/lat on a OpenLayers map.
Near the Equator I locate each point on the circle using bearing-calculation for each point from circle-center. Meaning there are 360 bearings ...
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Is the GPS signal being scrambled near military bases
We are navigating our survey aircraft using standard GPS receiver. Sometimes we fly near the vicinity of US Ramstein military base in Germany and it seems we are losing lock (no solution) in that area ...
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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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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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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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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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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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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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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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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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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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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, ...
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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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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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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 ...
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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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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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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 ...
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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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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 ...
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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?
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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). ...
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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 ...
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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 ...
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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 ...
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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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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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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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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.
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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 ...
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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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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 ...
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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 ...
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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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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 ...
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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 ...
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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 ...
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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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