Can I make my own GPS map? What software is there?
Proactively speaking, it is a GPS electronic map navigation software. Passively speaking, it is a GPS electronic map database. What controls the "GPS electronic map database" is GPS navigation software and GPS map software.
Just like GPS Navigator 3D-eMap, you can open a map file and use it; but you can use it without adjusting any map.
According to map data type:
GPS vector map library: a numerical database file with directions, levels, etc., such as: GPS Navigator electronic map format.
GPS image map: satellite remote sensing photos, computer-drawn images. For example: jpg image file of OZIexplorer (Australia).
According to the effect of use:
GPS navigation software, GPS electronic map navigation software, such as: GPS Navigator 3D eMap.
GPS pure electronics vary greatly, and some cannot achieve the above effects.
GPS image map software, used for general positioning or vectorization. However, the image cannot be queried and is equivalent to a paper map. First of all, accurate multi-point positioning coordinates and GPS trajectories are required to produce and position correction, but in the end there are still positioning errors. The scope of use can be used regionally. It takes up a lot of PC resources and is inconvenient to transfer. Such as: OZIexplorer (Australia) image map, BG1DY eMAP (released before 1999), MAPINFO (US).
Display effect: (point, line, surface)
The nearly complete map of Beijing not only includes detailed streets and points of interest in the city, but also all the maps in Beijing. The main streets and villages and towns data of districts and counties. This map was produced 10 days ago. After more than a week of testing, it was found that some aspects can be further improved. However, since the original environment for making this map has disappeared, it can only be released in this state for the time being. come out. This image can also only be used with Magellan GPS and is approximately 2MB when expanded.
A very detailed road traffic map of Guangdong, optimized for Meridian Color. It includes many villages and towns, as well as POI data such as some gas stations! In the figure, blue represents the water system, black thin lines represent railways (it can be displayed as a railway at 350M), gray thin lines or dotted lines represent administrative region boundaries, yellow thick lines represent highways, red thick lines represent national highways, and red thin lines represent provincial highways. , the thin pink lines are county roads, and the thin green lines are country roads. This picture can only be used with Magellan GPS. Please give us positive feedback for improvements after trying it out.