:good:
My first-thinking, is that if they want a subdivision map or a description with state plane coordinates, then include metadata but use the actual ground distances in the annotation of the lines. You could divide the inversed distance by the mean of the two 'combined factors' for the two points to do it correctly, or figure out an average combined factor for the project. In most cases it probably won't make a difference so it doesn't matter. But if it does matter, then I hate the idea of publishing SP grid distances.
if 50' sp = 50.001 feet grnd, who cares, but if 2000' grid - 2000.6 feet ground, I don't like it. I don't like publishing horizontal distances between points that aren't actually the (horizontal) distances between the points. I like state plane coordinates somewhat, but don't like sp distances.
MC
That's exactly the sort of BS that I was advocating against. It amounts to people trying to win the "Land Survey Lottery" (maybe I should trademark that term, then sue anyone else who uses it...?).
This stuff can actually be managed, IF it is done correctly. Unfortunately, few (if any) software packages currently do it correctly. (Autodesk stuff definitely DOES NOT.)
I *think* they've been making moves in the correct direction when it comes to LandXML Alignments, but that's about it. And even then, it still seems to have trouble, especially when you try to use LandXML between various different software packages, since different pieces of software create/interpret the data in different ways.
It's definitely a mess... But hopefully, since coordinate conversions are getting more and more important as time goes on, our software will eventually catch up... The key is holding specific horizontal geometry points, along with radius info for tangent curves. Then doing the coordinate conversion on THAT data. Although admittedly, this gets more complicated when you don't have two tangents into a curve. But in the majority of situations, coordinate conversions COULD happen pretty seamlessly, if done appropriately.
Although none of that really helps, if you're trying to work in Grid and all your plats and taxation are based on Ground... We (all Land professionals in general) have really been digging ourselves into a quagmire.
