Tab1. Datasets: Roads, POI and Farmland of Mainland China (10-million-scale)

Tab2. Demo Environment

The datasets (see Tab 1) used in the demonstration are provided by map service providers. As the datasets are not open published, the raw datasets are encrypted by adding offsets. The interface of the demonstration is simple to use, choose a dataset and click the Enter button, then the visualizing results will be added to the map in real time. Fig 1-4 show the visualizing results.

Fig1. China Mainland POI

Fig2. China Mainland roads

Fig3. China Mainland farmlands

Fig4. Patterns filling for polygon objects

Redis (recommended version 3.2.12)

hiredis (recommended version 1.0.0)

MPICH (recommended version 3.3.2)

Boost C++ Libraries (recommended version 1.72)

Geospatial Data Abstraction Library (GDAL) >=2.0 (recommended version 2.4.4)

libpng (recommended version 1.2.59)

All the source codes are included in HiVision_code. Run the following command to generate the executable programs:

cd HiVision_code # Go to source directory
mkdir build # Create a build directory
cd build # Move into build directory
cmake .. # Configure for your system
make # Generate the executable programs
cd .. # Move back to source directory

Edit the following parameters in "start.sh":

indexpath: path to store the spatial indexes (default : "./indexes/")

shppath: path of the input shapefiles (default : "./datasets/alaska_OSM/")

patternpath: path of the input patterns(default : "./patterns/")

process: MPI process count (default:4)

redishost: host IP of Redis (default:"127.0.0.1")

redisport: host Port of Redis (default:6379)

serviceport: port of the service (default:10080)

Then run the following scripts to start/stop HiVision automatically:

$ sh ./start.sh

$ sh ./stop.sh

Registration (Point: type=0/ LineString: type=1/ Polygon: type=2):

http://localhost:10080/HiVision/add/{shapefile_name}/{id}/{type}

Visualization WMTS:

http://localhost:10080/HiVision/{index_id}/{R}/{G}/{B}/{A}/{z}/{x}/{y}.png

Example:

(Point) datasets/alaska_OSM/gis_osm_places_free_1.shp 
http://localhost:10080/HiVision/add/gis_osm_places_free_1/places/0
http://localhost:10080/HiVision/pplaces/{R}/{G}/{B}/{A}/{z}/{x}/{y}.png
(LineString) datasets/alaska_OSM/gis_osm_roads_free_1.shp
http://localhost:10080/HiVision/add/gis_osm_roads_free_1/roads/1
http://localhost:10080/HiVision/lroads/{R}/{G}/{B}/{A}/{z}/{x}/{y}.png
(Polygon) datasets/alaska_OSM/gis_osm_buildings_a_free_1.shp 
http://localhost:10080/HiVision/add/gis_osm_buildings_a_free_1/buildings/2
http://localhost:10080/HiVision/abuildings/{R}/{G}/{B}/{A}/{z}/{x}/{y}.png

Mengyu Ma@ National University of Defense Technology

Email: [email protected]

Tel:+8615507487344