Augview Compass vs UTM Geo Map Y2Tech

Augview Compass is a high-accuracy compass application supporting: • Compass Deviation Error measurement & correction • Map navigation compass • Augmented Reality compass • Map marker tracking • Works in all orientations Have you been frustrated by Compass apps that claim to be accurate, but turn out to be hopelessly inaccurate or not work at all in certain device orientations? This was one of the drivers for us to create the Augview Compass app - a compass app that is more accurate, that works in all orientations and that provides both a map view and an Augmented Reality (AR) view for ease of use. The accuracy improvement is achieved by first measuring the Compass Deviation Error, and then deriving a function that provides a correction for any observed bearing. Compass Your phone or tablet incorporates various sensors that may be used to determine its location, its orientation and the way in which it is moving. We can compute the compass orientation by using a combination of these sensors. The magnetometer is the primary sensor used to detect magnetic fields. It measures the Earth's magnetic field in three dimensions (X, Y, Z axes) and helps determine the direction relative to Magnetic North. However, the Earth's magnetic field is relatively weak, and the magnetometers used in our phones show high levels of signal noise, when compared with the Earth’s magnetic field strength. To reduce noise in the outputs, filters and smoothing algorithms are used. To improve the accuracy, outputs from the accelerometer and gyroscope are also integrated using a technique known as sensor integration. Using the outputs from these three sensors, filtering algorithms and sensor fusion, we can determine a bearing relative to Magnetic North. The Magnetic North Pole is the point on the earth’s surface at which the planet's magnetic field points vertically downward. The magnetic north pole moves over time. As of 2024, its location is 86° N, 142° East and modelling predicts that by 2025, it will have drifted westward to 138° East. True North refers to the geographic North Pole, the point at the top of the Earth’s axis where all lines of longitude converge. This is the northern point of the Earth’s axis of rotation. True North is essential for mapping and GPS systems, as it provides a consistent reference for determining direction regardless of magnetic variations. The angular difference between Magnetic North and True North is called magnetic declination. This angle varies depending on where you are on Earth and because the north and south magnetic poles move, magnetic declination at a fixed point on the earth’s surface changes over time. Fortunately, there are formulae and web sites that can provide the declination value for any given date and geographic location. To indicate whether a bearing is relative to True North or Magnetic North we use the symbols °T or °M. Compass Calibration The operating system running on your device, allows you to Calibrate the magnetometer, to help reduce error, and to compensate for: • Sensor Drift • Local Magnetic Interference • Sensor and phone manufacturing issues To help reduce these issues, manufacturers recommend rotating the device about each axis, and/or rotating the device in a figure of 8 motion. Augview recommends a systematic approach where you: • Face north to be parallel with the earth’s magnetic field flux lines (to get maximum and minimum magnetic field strengths) • Rotate the device slowly about each axis twice • Hold the device flat and rotate about the vertical axis twice Calibration should be performed regularly, and especially after charging the device or leaving it near other electrical devices. Compass Deviation Error This is the error remaining after magnetometer calibration has been performed. The Augview Compass app incorporates a procedure for measuring and compensating for compass deviation error.

Complete, simple, easy to use & free application for Land Surveying, Topography, Bathymetry & GIS. Suitable for Geodesy Engineering, Civil Engineering, Geology and other disciplines related to maps, coordinates, location, address and spatial analysis. Can be used as a tool in determining position, coordinates, location & address, area & distance measurement, simple spatial analysis such as Overlay, Buffering and finding coordinate location on the field / stake out. Map Coordinates: Can be used to obtain Latitude Longitude, UTM, MGRS and other Coordinate Reference System using EPSG Codes in real time. Plot points complete with coordinate data, addresses, notes, photo and MSL elevation (premium). Export saved points to CSV, DXF or KML files. Offline GPS: Used to get coordinates in an offline state (without internet access), your cellphone will function like a Handheld GPS to get Latitude Longitude coordinates, UTM, MGRS, Elevation (ellipsoid), MSL Elevation (geoid), accuracy and other useful information. Coordinates data can be stored in an unlimited number inside your databases, given notes / labels, photos or exported into CSV files. Contours: Module to generate contours based on number of contour lines, desired elevation or contour interval. This is premium module and need internet connection. Coordinates Converter: To convert coordinates manually from Latitude Longitude to UTM & MGRS and vice versa. It can also be used to convert Addresses to Coordinates (Geocoding). Area/Distance: Used to measure distance and area with various units (support units: m, km, ft, miles, hectare, acre), register lines / polygons, make polygons automatically from measure points using sophisticated Convex Hull, Concave Hull or Trace ID methods. Create polygon holes manually or automatically from covered polygons. Automatically repair invalid geometry / self-crossing polygons, and much more. You can store unlimited lines / polygons in your database, displayed on a map, add photos and labels or exported to CSV or KML files. This module also includes spatial editing algorithms like Snap Nearest, Delete Object Inside or Outside Polygon. Buffer/Overlay: Simple GIS module to perform spatial analysis such as buffering & overlays (and other GIS operations) with several options including Union, Intersection, Difference and Symmetrical Difference. Already support negative buffer for polygons. Find Point: Module to find a location or coordinates in the field / Stake Out using built in GPS and Compass on your cell phone. Compass Map: Module with Maps, Compass, Distance and Azimuth to assist navigation and stake out on the field. Elevation Profile: Premium module to create simple Elevation Profile, this module needs internet connection. Bubble Level module: measuring tool to calculate leveling, degree of slope and percentage of slope. DTM Module: generating TIN (Triangulated Irregular Network / Delaunay Triangulation) DTM from random points or existing contour data, calculating cut and fill volumes (including determining the optimal cut-and-fill reference level where volumes are nearly balanced), performing contour interpolation, etc.. Some other modules. Any suggestions are welcome, please submit via email to utmgeomapapp@gmail.com or write a review. Thanks. Website: https://www.utmgeomap.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/