I am trying to register a raster image to a non-earth MineGrid, (where = MIneGrid North =3D 330 degrees True), and have the raster image rotate = to display MineGrid North to the top of the page when any MineGrid map = is overlaid. I am using MI 4.5.2 =20 I have a raster map which shows Australian Map Grid Coords (AMG). I = also have an affine transformation for the non-earth grid (MineGrid) and = this has been used to correctly display field data as maps but until now = I have not had to use any raster maps. MineGrid north is 330 degrees = True. I am also able to recalculate any AMG coords to give MineGrid = coords. Can anyone explain to me the steps required to display my raster image = with the MineGrid orientation - that is, with the raster rotated 30 = degrees clockwise. I have made 2 separate attempts at registering the = raster map: (1). Register the raster map to the AMG coords and then overlay a = MineGrid map. The raster displays with North oriented vertically. = MineGrid overlay map is correctly oriented on top of the raster but with = the MIneGrid rotated anti-clockwise into its correct position with = MineGrid North at 330degrees- ( I want the raster rotated clockwise! ). = A line of "CoordSys Earth Projection" parameters appears in the TAB = file. (2). Convert the AMG coord registration points to MineGrid coords, = reopen a fresh raster image and register it with the MineGrid affine = transformation. This places both "CoordSys Earth Projection" parameters = AND "Affine Units" in the TAB file. The displayed raster image remains = with North oriented vertically but the MineGrid overlay is rotated = incorrectly clockwise with MineGrid North at 30 degrees. I have also tried registering the raster to the AMG coords and then = using Save Copy of Table As > and selecting the Affine MineGrid for the = projection. That has the same result as in (1) - the MineGrid overlay = map displays correctly but the MineGrid map is rotated and NOT the = raster underlay - (it is the raster I would like to rotate). The TAB = file does not show any "Affine Units" I'm sorry if this has been rather long-winded but I wanted to make clear = the problem. Any help will be appreciated, Thanks in advance, John Elliot =20 Bathurst, NSW, Australia email: [EMAIL PROTECTED] _______________________________________________________________________ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MapInfo-L" in the message body.
