20,741
edits
Howto:Start using vectors and hashes in Nasal: Difference between revisions
Jump to navigation
Jump to search
m
Howto:Start using vectors and hashes in Nasal (view source)
Revision as of 21:23, 7 February 2012
, 7 February 2012Undo revision 40254 by Hooray (talk)
mNo edit summary |
|||
| Line 98: | Line 98: | ||
* bearing | * bearing | ||
Now, to access any of these fields, we would use the "dot notation" by first specifying the name of the enclosing context (which is really just a fancy word for the name of the hash) and the name of the field we are interested in: | Now, to access any of these fields, we would use the "dot notation" by first specifying the name of the enclosing context (which is really just a fancy word for the name of the hash) and the name of the field we are interested in. You could read this as: LOCATION.FIELD (i.e. get FIELD out of location). | ||
<syntaxhighlight lang="php"> | <syntaxhighlight lang="php"> | ||
| Line 110: | Line 110: | ||
print ( waypoint.bearing ); | print ( waypoint.bearing ); | ||
</syntaxhighlight> | </syntaxhighlight> | ||
So, the hash represents the surrounding environment (i.e. context or "namespace") in which these symbols are valid. For more information on namespaces, please see [[Namespaces and Methods]]. | |||
Now, to make this is a little more interesting and to show what's happening, we are going to change the value of each field: | Now, to make this is a little more interesting and to show what's happening, we are going to change the value of each field: | ||