Hi Y'all,
This is an embarrassing question to ask, because it will expose my ignorance to GIS topics. But I can't figure out how to do this operation and I'm wondering if someone could throw me a bone.
So I have an image that I need to scale based on the zoom level of the map and place in a PictureMarkerSymbol. (Operating in Map / MapGraphicsView). When I place the image at location 0,0 (WGS84), the UnitsPerDIP call returns a value that scales the image appropriately. But (perhaps obviously), when I place the image at a location away from (0,0), the image's size is different.
So is the solution to use the GeometryEngine to MoveGeodetic to the location in question? If so, I don't really understand how to "move" a PictureMarkerSymbol (which is referenced by a single point) instead of something like the 4 corners of an envelope... but an envelope isn't the geometry I need.
Another way to put it: I have an icon that is a 10x10 meter square. When I scale my original graphic's PNG using UnitsPerDIP at location 0,0 it scales properly. When I scale it at WGS84 lon,lat (-70.6, 41.9) the graphic renders to somewhere in the mid 7 meters per side. How do I make it 10x10 meters at (-70.6, 41.9)?
Thank you,
Brian Crist
