ref.x, ref.y

[Stephen Lime]

Image coordinates are to be expected. Ref.x and ref.y are the coordinates of the mouse
click and are converted to map coordinates on the server. I think the problem is that you
haven't specified a size (eg. SIZE 100 125) in the reference object. It could be grabbed
from the image itself I suppose (requires opening the file an extra time) but at this point 
it needs to be hardcoded in the map file.

Steve

>>> RAldridge <RAldridge at linuxstart.com> 03/15/00 04:07PM >>>
I'm trying to use my reference map as an input image that will pan the main map to be centered on the point that is clicked on the reference map.  When I click on the reference map, however, the coordinates for ref.x and ref.y appear to be in image coordinates rather than map coordinates.  I end up with a blank image for my main map.  Below is a snippet from my .map file.  Any help is appreciated.

Thanks,

Robert Aldridge


#
# Start of map file
#
NAME DEMO
STATUS ON
SIZE 350 500
SHADESET ../symbols/shade.sym
MARKERSET ../symbols/marker.sym
LINESET ../symbols/line.sym
EXTENT 254189.000000 1117801.000000 292781.000000 1151833.000000
UNITS FEET
SHAPEPATH "data"
IMAGECOLOR 255 255 255

# LABELOVERLAP FALSE

#
# Start of web interface definition
#
WEB
  HEADER demo_header.html
  TEMPLATE demo.html
  EMPTY "/gspc_demo/empty.html"
  MINSCALE 1000
  MAXSCALE 1550000
  IMAGEPATH "/www/htdocs/temp/"
END

#
# Start of reference map
#
REFERENCE
  IMAGE graphics/reference_base.png
  EXTENT 254189.000000 1117801.000000 292781.000000 1151833.000000
  STATUS ON
  COLOR -1 -1 -1
  OUTLINECOLOR 255 0 0
END

#
# Start of legend
#
LEGEND
  KEYSIZE 20 15
#  IMAGECOLOR 196 196 196
  LABEL
    TYPE BITMAP
    SIZE MEDIUM
    COLOR 0 0 89
  END
  STATUS ON
END

#
# Start of scalebar
#
SCALEBAR
  IMAGECOLOR 255 255 255
  LABEL
    COLOR 0 0 0
    SIZE SMALL
  END
  SIZE 250 5
  COLOR 255 255 255
  BACKGROUNDCOLOR 0 0 0
  OUTLINECOLOR 0 0 0
  UNITS MILES
  INTERVALS 3
  STATUS ON
END

#
# Start of layer definitions
#
LAYER
  NAME "Base"
  TYPE POLYGON