Map Provider Initialization

Note

SW Release Applicability: This tutorial is applicable to modules in NVIDIA DRIVE Software releases.

The initialization functions of the map provider are:

typedef struct dwMapProviderParameters {
    size_t numAllocatedMaps;        
    size_t totalMapAllocationBytes; 
} dwMapProviderParameters;

dwStatus dwMapProvider_initializeWithCacheFile(
    dwMapProviderHandle_t* providerHandle,
    const char* mapCacheFile,
    dwMapProviderParameters* params,
    dwContextHandle_t contextHandle);

dwStatus dwMapProvider_initializeWithDirectory(
    dwMapProviderHandle_t* providerHandle,
    const char* mapDirectory,
    dwMapProviderParameters* params,
    dwContextHandle_t contextHandle);

Note the map provider parameters are significant as they determine per-map and total memory allocations.

The initializer examines the provided map cache file (XML) or map directory and prepares to serve map requests. It returns a handle to a map provider that should be used to request Map data as needed. Initially the Map Provider is backed by content in the local filesystem, including map cache files (XML).

Map cache files can be created with a conversion tool (see HERE Maps to DriveWorks Maps Converter Tool).

For more information see Map Access Sample .