Best altitude software for free download

HS GPS is a software library (with full C source code) which provides access to a NMEA-183 compliant GPS receiver via a serial communications port, decoding NMEA sentences: $GPGGA, $GPGSA, $GPGSV, $GPGLL, $GPRMC and $GPVTG. Decoded parameters include: time, date, position, altitude, speed, course and heading, according to standard - NMEA-183 (National Marine Electronics Association, Interface Standard 0183.

* HOW IT WORKS: HS GPS library continuously reads asynchronous data stream from a serial port and analyses the information to recognize and decode NMEA-183 Protocol sentences. After each message is received it is checked for integrity by comparing the received and the calculated checksum. The NMEA sentence fields are then converted from ASCII values into C structure variables and passed up to user application code.

* Applications
- Navigation
- Security
- Telematics
- Fleet Tracking
- Asset Tracking
- Any customer applications requiring access to a NMEA-183 compliant GPS receiver

* Features
- Interfaces a GPS receiver over COM ports COM1 - COM8
- Decodes most commonly used NMEA sentences from a GPS receiver:
- GGA - Global Positioning System Fix Data
- GLL - Geographic Position
- GSA - DOP and Active Satellites
- GSV - Satellites in View
- RMC - Recommended Minimum Specific GNSS Data
- VTG - Course over Ground and Ground Speed

HOW TO BUY HS GPS LIBRARY:
You can purchase the library online using credit card payment at:

http://www.hillstone-software.com/hs_gps_buy.htm

The library costs EUR 79.00 for unlimited user license. Once the purchase is made you will receive download link by email to download full product deliverables, which include:
- HS GPS library binaries. (Win32 static library)
- HS GPS library full source code in C with MS Visual C project workspace
- HS GPS Demo Application binaries, full source code and MS Visual C project workspace.
- HS GPS library user manual, which documents in detail complete library API

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Geocode digital images with latitude, longitude, altitude, and photo direction information. RoboGEO stamps this information onto the actual photo or writes it to the EXIF headers, allowing you to permanently geotag and link your photos to the GPS coordinates. All writing to the EXIF and IPTC headers is lossless and all of the existing comments (including the MakerNote and the Adobe XMP metadata) are preserved. Now you can know WHERE a given photo was taken. Create web pages that use Google Maps, export KML or KMZ files to Google Earth, upload geotagged photos to Flickr, export ESRI SHP shapefiles, export to MapPoint, or export DXF files for use in various vector based drawing programs such as AutoCAD or IntelliCAD. Show the photo direction on maps and calculate it from the GPS tracklog. Automatically merge EXIF or IPTC tags into the image titles and descriptions. Record dictation using any modern digital voice recorder and automatically associate audio with the photos. Export GPX files. Edit the EXIF times. Photo locations can be projected to a new location in either ground or airplane mode. Free EXIF/IPTC viewer included. Geocode any type of JPG, PNG, BMP, TIF, or Adobe DNG file. Directly supports Garmin GPS units (USB or COM), but no GPS is required. Georeference images from a GPS tracklog or waypoints. Import GPX or G7ToWin files for interfacing with other GPS makes and models like Magellan, Lowrance or Trimble. Supports DNR Garmin. Includes an image renaming utility that renames images based on the EXIF data. Works with any modern digital camera. Internationally aware. Very easy to use. Nice user interface. Perfect tool for aerial photography, GIS professionals, land surveyors, engineers, insurance claim adjusters or anyone who needs to document the location of photos. Low cost. Free lifetime upgrades. Extensive on-line documentation.

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