/* Recursively build a nodelist from a tree of GhtNodes */
GhtErr
ght_node_to_nodelist(const GhtNode *node, GhtNodeList *nodelist, GhtAttribute *attr, GhtHash *hash)
{
static int hash_array_len = GHT_MAX_HASH_LENGTH+1;
GhtHash h[hash_array_len];
GhtAttribute *a;
/* Add our part of the hash to the incoming part */
memset(h, 0, hash_array_len);
strncpy(h, hash, GHT_MAX_HASH_LENGTH);
if ( node->hash )
{
/* TODO: limit write to GHT_MAX_HASH_LENGTH - strlen(node->hash) */
strcat(h, node->hash);
}
/* Make a copy of all the incoming attributes */
GHT_TRY(ght_attribute_union(node->attributes, attr, &a));
/* Recurse down to leaf nodes, copying attributes and passing them down */
if ( node->children && node->children->num_nodes > 0 )
{
int i;
for ( i = 0; i < node->children->num_nodes; i++ )
{
GHT_TRY(ght_node_to_nodelist(node->children->nodes[i], nodelist, a, h));
}
ght_attribute_free(a);
}
/* This is a leaf node, create a new node and add to list */
else
{
GhtNode *n;
GHT_TRY(ght_node_new_from_hash(h, &n));
GHT_TRY(ght_node_add_attribute(n, a));
GHT_TRY(ght_nodelist_add_node(nodelist, n));
}
return GHT_OK;
}
//return ght_node_calculate_z(tree->root);
GhtErr
ght_node_calculate_z(const GhtNode *node, GhtAttribute *attr, GhtSchema *schema)
{
static int hash_array_len = GHT_MAX_HASH_LENGTH + 1;
GhtHash h[hash_array_len];
GhtAttribute *a;
// TODO Vérifier l'access au hash de chaque noeud
/* Make a copy of all the incoming attributes */
GHT_TRY(ght_attribute_union(node->attributes, attr, &a));
/* Recurse down to leaf nodes, copying attributes and passing them down */
if ( node->children && node->children->num_nodes > 0 )
{
int i;
for ( i = 0; i < node->children->num_nodes; i++ )
{
GHT_TRY(ght_node_calculate_z(node->children->nodes[i], a, schema ));
}
double acc = 0; int k;
for ( k = 0; k < node->children->num_nodes; k++ )
{
acc = node->children->nodes[k]->z_avg + acc;
}
GHT_TRY(ght_node_set_z_avg( node, acc / node->children->num_nodes ));
ght_attribute_free(a);
}
/* This is a leaf node, create a new node and add to list */
else
{
// printf (">> Dans une feuille \n");
double valeur;
// *** DEBUT ***
// TODO On a besoin d'une fonction plus géneral
// Pour l'instant on va le tester avec la dimension "elevation" = Z
GhtDimension *dim;
GhtAttribute found;
/*
int num_dims;
GHT_TRY( ght_schema_get_num_dimensions( schema, &num_dims) );
printf ("> num dimension %i \n ", num_dims);
*/
//GhtErr ght_schema_get_dimension_by_name(const GhtSchema *schema, const char *name, GhtDimension **dim)
GHT_TRY( ght_schema_get_dimension_by_name(schema, "Z", &dim) );
/*
const char *name_dim ;
ght_dimension_get_name(dim,&name_dim);
printf("> Name of dimension: ");
puts(name_dim);
*/
//GhtErr ght_attribute_get_by_dimension(const GhtAttribute *attr, const GhtDimension *dim, GhtAttribute *found)
GHT_TRY( ght_attribute_get_by_dimension(a, dim, &found) );
//GhtErr ght_attribute_get_value(const GhtAttribute *attr, double *val)
GHT_TRY( ght_attribute_get_value(&found, &valeur) );
//printf ("> VALEUR %g \n ", valeur);
GHT_TRY( ght_node_set_z_avg(node, valeur) );
// *** FIN ***
/* GhtNode *n;
GHT_TRY(ght_node_new_from_hash(h, &n));
GHT_TRY(ght_node_add_attribute(n, a));
GHT_TRY(ght_nodelist_add_node(nodelist, n));
*/
/*
double d;
GHT_TRY(ght_attribute_get_value(attr, &d));
ght_attribute_get_value
*/
}
return GHT_OK;
}
