tile_feature_copy()

static VectorTile__Tile__Feature* tile_feature_copy ( const VectorTile__Tile__Feature *  feature, int  key_offset, int  value_offset  )

static

Definition at line 1326 of file mvt.c.

{
        uint32_t i;
        VectorTile__Tile__Feature *nfeature;
 
        /* Null in => Null out */
        if (!feature) return NULL;
 
        /* Init object */
        nfeature = palloc(sizeof(VectorTile__Tile__Feature));
        vector_tile__tile__feature__init(nfeature);
 
        /* Copy settings straight over */
        nfeature->has_id = feature->has_id;
        nfeature->id = feature->id;
        nfeature->has_type = feature->has_type;
        nfeature->type = feature->type;
 
        /* Copy tags over, offsetting indexes so they match the dictionaries */
        /* at the Tile_Layer level */
        if (feature->n_tags > 0)
        {
                nfeature->n_tags = feature->n_tags;
                nfeature->tags = palloc(sizeof(uint32_t)*feature->n_tags);
                for (i = 0; i < feature->n_tags/2; i++)
                {
                        nfeature->tags[2*i] = feature->tags[2*i] + key_offset;
                        nfeature->tags[2*i+1] = feature->tags[2*i+1] + value_offset;
                }
        }
 
        /* Copy the raw geometry data over literally */
        if (feature->n_geometry > 0)
        {
                nfeature->n_geometry = feature->n_geometry;
                nfeature->geometry = palloc(sizeof(uint32_t)*feature->n_geometry);
                memcpy(nfeature->geometry, feature->geometry, sizeof(uint32_t)*feature->n_geometry);
        }
 
        /* Done */
        return nfeature;
}

Referenced by vectortile_layer_combine().

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