Conky: Make graph out of data obtained internally?

Question

In conky, you are able to obtain and use data from an external source by executing a shell command, though you are warned that this is costly. You are also able to make a bar or graph out of externally obtained data, using execbar or execgraph. Similarly, there are certain internal ways to obtain system data and with some of these there are also internal conky functions to make graphs out of this data, like cpu and cpugraph.
What I can't seem to find, however, is a general way to take data obtained from an internal conky function and turn it into a graph or bar, without having to resort to (apparently costly) external commands. Take temperature for example: You are able to obtain your system temperature using the acpitemp or hwmon commands in conky, but there doesn't seem to be any corresponding function to generate a graph of this data. Similarly with battery charge.
Is there some obvious way to do this that I am missing, or do I have to use external commands to get at these things?

Answer 1

Maurice,
OWB generates optimized code based on whether sources are local or remote. With remote sources, Warehouse Builder will generate code that uses inline views in order to minimize network traffic.
In your case, you confuse the generation by creating a view that does some remote/local joins telling OWB that the object is local (which is only partly true).
Perhaps what you could do is create one-to-one views and leave it up to OWB to join the objects. One additional advantage you gain with this approach is that you can keep track of the impact analysis based on your source tables rather than views that are based on the tables with flat text queries.
Mark.