The weather chart I found looked a little like that except for where I live and that gave me the idea for using point styles.
A quick search showed that being able to use other shapes or images in the visualizations has come up before - https://github.com/google/google-visualization-issues/issues/2420 and someone came up with an idea that may be useful to you using angular js - https://codepen.io/nbering/pen/yNZxKr What you could do is use a single arrow image and use CSS transform: rotate( *angle*). -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-visualization-api. To view this discussion on the web visit https://groups.google.com/d/msgid/google-visualization-api/5b4e7ebf-6cd1-4b3b-94aa-8b934011568c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
