Raster Manager dialog box

List box

Displays the File Name, Description and, Read-Only status and model of origin for all attached files. The Quick Info, Logical Name, On-the-Fly, Geo Priority, Display Gamma, Print Gamma, and Status fields can also be added to the menu bar by using the contextual (right-click) menu. When there is enough room, the name and path are shown.

You can change the display sequence by dragging a file to a different position in the list. The display sequence of the raster images follow these rules:

• Raster images cannot be separated from the other images of the same design file.

• The display order of raster images that are attached through a model in reference is inherent to this model. When the referenced model is reloaded, the display order of the raster images will be updated.

• The image sets will be listed following the MicroStation Update Sequence order.

• Only images from the active model can be moved with the “Bring Forward”, “Send Backward”, “ Bring To Front” and “Send To Back” tools. Again, the images cannot be moved outside the range of the active model's image list. These tools will be grayed out if an image that is not in the active model is selected.

• If a model is self-referenced, changing the display order in the active model will also change the order of the images in the referenced model.

Resizing the dialog box changes the size of this list box, letting you display as many image filenames as you require. When the number of files in the list exceeds the number of lines displayed, a scroll bar lets you scroll through the list.

One or more files can be selected from the list. When more than one file is selected, the information provided by the text fields, in the lower part of the dialog box, applies to the first file of the list.

Full Path

Displays the full file specification, including the directory where the reference was found.

Origin

Displays the X, Y and Z coordinates of the lower left corner of the image, in working units.

Width/Height

Displays the Width and Height of the image in working units.

Dimensions

Displays the dimensions of the raster image, in pixels, plus the color depth.

Pixel Size or Scale Factor

When set to Pixel Size, displays the size of each pixel of the image, in working units.

When set to Scale Factor, displays the scale as 1:n and the resolution in dpi.

Color Mode

Change the color depth of the image.

Rotation

Sets the rotation angle of the image.

Affinity

Sets the skew angle of the image.

Model

The Model field is used to display the origin (design name and model name) of the raster reference.

Status

The Status field displays the reference's status (Loaded, Referenced, Self-Referenced or Raster Not Found). When a file is not found, its name is displayed in red, with the message “Raster not found” appearing in the Status field.

Read-Only

If on, the file is opened in a read-only mode and a check mark will appear in the Read-Only column.

On-the-Fly Transformation

The new On-the-Fly Transformation field indicates that the raster file can be transformed or re-projected on-the-fly. When this toggle is ON, a check mark will appear in the On-the-Fly column. Once this toggle is set to ON, MicroStation GeoGraphics is required in order to transform or re-project a raster image.

A special editing operation only available in Bentley Descartes 2004 Edition or later is required to toggle this feature ON/OFF.

Geo Priority

The Geo Priority field displays the method used to geographically position the image. The available choices are Attachment, Raster Header, Sister File and From Preferences. The image may have native geographic metadata stored in the image itself (raster header) or in a companion file (sister file or world file). When no native methods are present, the image is geographically positioned by the user and the metadata is stored in the design file. This method is called “attachment”.

The geographic metadata is always preserved and updated in the Attachment. When specified otherwise, the alternate location is updated as well as the attachment. Hence, the attachment is constantly updated to reflect the current geographic information of the image.

In cases where the image has native geographic metadata, once attached to a design file, it is sometimes useful to specify which metadata storage to use such as Raster Header, Attachment or Sister File. The Raster Manager preferences allow some flexibility to that effect. The Geo Priority column displays the method used to position the image and, upon reopening the design file, will display in RED if the previous method cannot be used. For example, you may want to attach an image using a sister file, but once attached you want the geographic metadata to be read from the attachment. You would then set the preferences to prioritize native geographic metadata and would change the Geo Priority to attachment.

The Geo Priority is also very useful to warn about potential data loss. For example, if the preferences are set to always read the geographic metadata from a sister file but the sister file is not present, Raster Manager will use the Attachment information and will highlight the column in red showing an error has occurred. The status column will also display the alternate method used to geographically position the image, in this case “attachment”.

The Geo Priority feature allows each image to have it's own Geo Priority. In versions before 2004 Edition, the same Geo Priority was forced to all images. When an older file version is opened in MicroStation and where no Geo Priority was previously set, the Geo Priority will be set to From Preferences. This indicates that the Raster Manager preferences will dictate how Georeference for this image is handled. If the Raster Manager Preferences are set identically to the previous MicroStation version, the image will display and position identically. If the Preferences are set differently, it is possible that the image displays and positions differently. If this is the case, adjust the Geo Priority before saving and closing the design file and change the Raster Manager Preferences accordingly.

To change the Geo Priority, simply click in the Geo Priority column. This will open the Geo Priority dialog box. You can then change the selection.

Display Gamma

Sets the display gamma correction value. The base value is 1.0. A value lower than 1.0 creates a darker image, a value higher than 1.0 creates a lighter image.

Print Gamma

Sets the gamma correction value for the printer.

View

Numbered push buttons let you define in which view(s) to display the raster reference(s).

Tint Color or Foreground Color

For colored images, the Tint Color setting is used to add a tint to the colors in the raster image.

For monochrome images, the Foreground Color setting controls the color of foreground items.

Transparent Color or Background Color

For colored images, the Transparent Color setting is used to set a transparent color for the raster reference. The selected color in the raster image then becomes transparent, when the Transparent setting is enabled.

For monochrome images, the Background Color setting is used to set the background color of the raster file.

In both instances, the chosen color also is used as a fill color when clipping raster images.

Print

If ON, permits the raster image to be printed.

Transparent

If ON, the selected Transparent Color (for color images), or Background Color (for monochrome images), becomes transparent, allowing DGN elements or other images to show through the image.

Clipping

For raster references that have been clipped only. If ON, the raster reference is displayed with clipping enabled. If OFF, then the clipping polygon is ignored and the image is displayed in full.

Invert

If ON, the colors for the raster image are inverted. This is similar to making a negative of a photograph.

File > Attach

File > Detach

Detaches the selected raster reference(s).

File > Detach All

Detaches all raster image files.

File > Reload

Refreshes the selected raster file(s), using the current data of the file(s).

File > Save As...

File > Project > Import

File > Batch Convert

Edit > Modify

Edit > Mirror

Edit > Warp

Edit > Clip

Edit > Unclip

Edit > Modify Clip

Display > References

Display > Bring to Front

Display > Send to Back

Display > Bring Forward

Display > Send Backward

Display > Fit Rasters to View

Display > Fit All Rasters to View

Display > Actual Resolution (1:1)

Displays the selected image at its resolution scale (1:1). A data point defines the center point of the view. (When only one image is opened, it is selected).

Settings > Attachment

Settings > Update Sequence

Settings > Image Servers