Archaeology Mapping

[Kotu]

I'm not sure this is the right place for this, instead of requesting a pre-made mod, i was wondering about help with examples of how to achieve parts of my addon idea so I can build it myself.

The digging for archaeology is fairly easy, but it does get quite time consuming, especially when trying to triangulate an artifact and it ends up taking 6/7 tries to get the spot just right. So I gave ArcheoTriangle a try, it's a nice idea but the map coordinates do not seem to be precise enough to calculate specific areas.

So I want to try and make a new mod assuming the following:

red survey = 180degree arc (really inaccurate, sometimes it seems like its going in circles)
yellow survey = 90degree arc (much more precise)
green survey = 20degree arc (accurate when close to object but prone to error if bordering on yellow range)

What I want to do is draw these arcs on the minimap, I would probably achieve this by making a small window with red/yellow/green buttons and each time I do a survey, I would walk my character into it and face the same direction, then click the corresponding colour. When a second survey is done, it would then fade out the none overlapping areas from the 2 arcs producing a small area to work in. If coupled with Gathermate2 (to see nodes which lie under the overlap area) and Chinchilla (hotkey a larger minimap) it would make the surveys much easier.

So the problem I have is, how do I go about drawing arcs on the minimap? Ive tried looking for example code in addons such as gathermate2, but the amount of features mods like this have make it really hard to get a simple working example

[Seerah]

You just need to overlay a frame on the minimap. The hard part is making it stay at that "location" even while you move. For that, you would want to look into how addons such as Gatherer work.

[Jigain]

You might also want to take a gander at HUDMap and see how they've made their interface. Something like that might be of help.