Raster Manager Guide
Raster Manager Guide
Raster Manager Guide
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MicroStation´s Raster Manager utility combines the features of raster references and Image Manager. The Raster Manager dialog box, along with the Raster Display and Raster Control tool boxes let you control all aspects of attaching and manipulating raster image files. Many settings controlling raster location, display and search paths can be found under the Workspace > Preferences > Raster Manager menu.
Raster Manager lets you control the display of one or more image files within a MicroStation DGN file view. Each view may be used to display image files. The names of all attached image files (for all views) are displayed in the Raster Manager dialog box. You can change the view(s) in which a raster image is displayed via the Attachment Settings dialog box, under the Display/Print tab, or via the Raster Manager : Files ( ) dialog box under the Image Settings extent.
Information about the image files is stored with the DGN file. The georeferencing and positioning information is also kept in the raster file header for georeferenced file formats. For non-georeferenced image formats, this information is either written to a location info sister file, or it is simply kept in the image's DGN file attachment. To see if a file is georeferenced or not, look in the Raster Manager User Guide in the Supported Output File Formats chart. When the options HGR or World File are listed under the Options column, this indicates that the format is non-georeferenced and needs an ASCII text file, known as a sister file or world file to position itself. As for a georeferenced format, the Options column will remain empty. For the complete list, see Supported Ouput File Formats
. User preference settings are available to specify where the georeferencing information is stored, and to set the priority as to which information source will be used. For details, see Raster Manager Preferences.Warping, mirroring and resizing parameters are also stored in the DGN file's raster attachment. If the image is detached, these settings are deleted. In order to apply warping, mirroring and resizing settings, a new image must be saved using the Save As… command with the Option > Resample toggle set to On. Neither clipping and transparency, nor contrast and brightness settings are exported when an image is resampled. These settings are only kept in the DGN file attachment and are lost if the image is detached.
Certain Windows DLLs must be present on your computer in order to use Raster Manager. Make sure you have Microsoft Internet Explorer (Version 5 or greater) installed. You do not need to change your default browser as long as Internet Explorer is installed. Please refer to the Microsoft Internet Explorer home page for more information about Internet Explorer. |