Guy:
I have IDL codes as following(which extract from
elevation_object.pro). When I run this program and shut down the IDL
workbench (not close the "IDL Object Window 32" window), I get the
"Idl_opserver.exe" error. So why?
pro test
; Obtaining path to image file.
imageFile = FILEPATH('elev_t.jpg', $
SUBDIRECTORY = ['examples', 'data'])
; Importing image file.
READ_JPEG, imageFile, image
; Obtaining path to DEM data file.
demFile = FILEPATH('elevbin.dat', $
SUBDIRECTORY = ['examples', 'data'])
; Importing data.
dem = READ_BINARY(demFile, DATA_DIMS = [64, 64])
dem = CONGRID(dem, 128, 128, /INTERP)
; Initialize the display objects.
oModel = OBJ_NEW('IDLgrModel')
oView = OBJ_NEW('IDLgrView')
oWindow = OBJ_NEW('IDLgrWindow', RETAIN = 2, $
COLOR_MODEL = 0)
oSurface = OBJ_NEW('IDLgrSurface', dem, STYLE = 2)
oImage = OBJ_NEW('IDLgrImage', image, $
INTERLEAVE = 0, /INTERPOLATE)
; Calculating normalized conversion factors and
; shifting -.5 in every direction to center object
; in the window.
; Keep in mind that your view default coordinate
; system is [-1,-1], [1, 1]
oSurface -> GetProperty, XRANGE = xr, $
YRANGE = yr, ZRANGE = zr
xs = NORM_COORD(xr)
xs[0] = xs[0] - 0.5
ys = NORM_COORD(yr)
ys[0] = ys[0] - 0.5
zs = NORM_COORD(zr)
zs[0] = zs[0] - 0.5
oSurface -> SetProperty, XCOORD_CONV = xs, $
YCOORD_CONV = ys, ZCOORD = zs
; Applying image to surface (texture mapping).
oSurface -> SetProperty, TEXTURE_MAP = oImage, $
COLOR = [255, 255, 255]
; Adding objects to model,then adding model to view.
oModel -> Add, oSurface
oView -> Add, oModel
; Rotating model for better display of surface
; in the object window.
oModel -> ROTATE, [1, 0, 0], -90
oModel -> ROTATE, [0, 1, 0], 30
oModel -> ROTATE, [1, 0, 0], 30
; Drawing the view of the surface (Displaying the
; results).
oWindow -> Draw, oView
end
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