The OpenStreetMap is a project that volunteers create a freely available map on the internet. The map created in this project is open on browsers and free to use on websites. The vector data can be used for the purpose of merchandise too.

The GIS map is provided by the Geospatial Information Authority of Japan (GIS). The users have to obey the terms of service defined by the GIS to use the high-precise map data.

To import online map data, first define a zone where you want to download a map. Click the import button in the zone edit screen. The data will be automatically downloaded, and buildings and forests are displayed.

Fig.1 OpenStreetMap data	Fig.2 Map data imported from the OpenStreetMap

Users can edit models one by one or the whole buildings or forests. For building objects, height, colour, and model category can be changed. For forest editing, kind and number of tree, height, and rotation angle can be selected. Since more objects than you required may be created depending on the map data, users can select whether to create each building and forest model or not. The development to import map data services other than the OpenStreetMap and GIS map is ongoing. Please let us know a database you want to use.

Fig.3 Editing after import

Road shapes to be created according to terrains, road aligns, and road sections are calculated in the road generation process and recalculated when editing terrain and road. This process takes time when there are many roads and large terrain, and it was one of the reasons of less efficiency.

These days, multicore CPUs typified by the Intel Core i series are widely spread, and the parallelized process to decrease the whole calculation time is possible by dispersing the process on multiple CPU cores. In the version 13.1, this process contributes to decreasing the time of road generation in the multicore CPU environment. In the developing version on 6 cores CPU, the computing time has been shortened to 1/3 to 1/4, and the same extent of time reduction is expected in the product version. We will consider the parallelization of other time consuming processes in UC-win/Road to improve the processing speed.

Fig.4 Parallelized process

The current convert of the geographic coordinate system and projection coordinate system is done by saving each value on the origin and the diagonal point at the beginning of project creation, considering each axis direction as north, south, east and west, and complementing line shapes. However, in fact, the rectangle in the geographic coordinate system becomes a trapezium in the project coordinate system and does not match the four points of the compass since an oval earth is projected on this coordinate system. This convert result is not the correct value, but it is not a big problem on VR. However, the kinds of terrain data have been increased, and the UC-win/Road is now adopted to a lot of projects in addition to VR. Moreover, the information circulation of 3D data is getting common also in the civil engineering field. Considering these facts, this error cannot be ignored anymore. In the UC-win/Road Ver.13.1, latitude and longitude are precisely converted from the coordinate on UC-win/Road by using the coordinate system data in project data.

Fig. 6 Converting longitude and latitude and plane right angle coordinate system

When a new project is created in the UC-win/Road Ver.13.1, height data of latitude and longitude grid is not imported as it is. Latitude and longitude for grids in UC-win/Road are computed first, and more precise terrain data is created by complementing heights corresponding to those points from the original data. This is also supported for import of the GIS tiles and Geotiff. In addition, calculation of longitude and latitude by the new convert provides more precise values in the UC-win/Road Ver.13.1.

SDK developments also show promise of data utilization because of the precise coordinate convert by using the coordinate convert function.

Moreover, we are enhancing the UC-win/Road for the linkage with the developing CIM cloud solution service and next generation VR-Cloud® that is being reborn.