Well shoot, that's even easier and you definitely don't need a struct region to
do that! :-) An extension of the db_walk_tree() example on the wiki will do
the trick. The trick being that the region_end hook will only visit positive
regions and the tree state has all the attributes already loaded.
Cheers!
Sean
p.s. The example below doesn't have a slew of error checking that you should
add.
#include "common.h"
#include "bu.h"
#include "raytrace.h"
union tree *region_attrs(struct db_tree_state *tsp, struct db_full_path *pathp,
union tree *tp, genptr_t data)
{
int i;
char *path = db_path_to_string(pathp);
struct bu_attribute_value_pair *avpp;
bu_log("REGION: %s\n", bu_basename(path));
bu_free(path, "path");
avpp = tsp->ts_attrs.avp;
for (i = 0; i < tsp->ts_attrs.count; i++, avpp++) {
bu_log("\t%s=%s\n", avpp->name, avpp->value);
}
return 0;
}
int
main(int argc, char *argv[])
{
struct db_i *dbip;
struct db_tree_state state = rt_initial_tree_state;
if (argc < 2) {
bu_exit(0, "Usage: %s db.g obj\n", argv[0]);
}
dbip = db_open(argv[1], "r");
db_dirbuild(dbip);
db_lookup(dbip, argv[2], 1);
state.ts_dbip = dbip;
state.ts_resp = &rt_uniresource;
rt_init_resource( &rt_uniresource, 0, NULL );
db_walk_tree(dbip, 1, (const char **)argv+2, 1, &state, NULL, region_attrs,
NULL, NULL);
return 0;
}
>Well, what I really want during this walk is to enter at a tree top
>(say 'all') and list every positive region under it (no dups). For
>each region i want all its attributes.
>
>That's it.
>
>Thanks, Sean.
>
>-Tom
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