Edit Menu Help in the DAVE master widget
Pops up a widget which allows the color maps to be modified. This is useful
when displaying data mapped to an object surface in greyscale. For
specialized (non-manipulatable) color maps see LoadMap under the Goodies
This widget controls which objects are displayed, whether they are in shown
in wireframe or surface mode, and whether they are shaded or have image data
mapped to their surface. It is automatically generated if a pts file is
specified on the dave command line.
Edit Data Planes
This widget is useful if you want to display XY, YZ, or XZ planes of volume
data. It also allows one arbitrarily oriented plane through the volume.
Edit Bkgnd Colors
This widget changes the background viewing window color. Click on a color
to select it. Click on the arrows to get more colors. Sometimes a selected
color is not available.
Edit Surface Data
This widget allows a region (or point) on an object surface to be specified.
This region is outlined. The region may then be translated to a new
position. Thus if a surface is not quite what you want it can be changed.
Edit Volume Data
This widget controls which image data sets are displayed, their brightness
and opacity, their color, and (via its Volume Clipping subwidget) the
subset of interest to display. It is automatically generated if an image
file is specified on the dave command line.
Menu options permit the rendering mode to be changed from the default to
Cubes (which displays each voxel as a cube; this is particularly useful when
looking at a small subset of the data in a Snoops window, see Snoops in the
Goodies menu on the DAVE Master Widget).
Edit 3D Grid
Allows a grid of straight lines to be displayed. The grid spacing and color
can be manipulated. This is useful for visualizing the curvature of an
object or its change in position over time. By default the grid encompasses
the maximum range of the image data dimensions. If "V. Sliders" is chosen
then the grid encompasses only the subvolume currently selected using the
Volume Clipping widget. This is useful when only a subvolume is being
examined. [Pushing the L key when the cursor is in the viewing window will
make the lines thicker].
Edit Object Material
Permits the "material" properties of the surfaces to be changed. The color
of the objects can be modified, as can their transparency. Ambient and
emission values can be increased to make the object appear brighter.
Edit Back Light
This allows the color of the back light to be changed. It is what affects
the color of the inside of the objects (in addition to their material
color). By default it is red.
Edit Front Light
This allows the color of the front light to be changed. It is what affects
the color of the outside of the objects (in addition to their material
color). By default it is white. The front light's position can be changed
via an "l" key pressed when the cursor is in the DAVE viewing window. See
the DAVE widget help for more information on this.
Edit Other Objects
This allows the user to place arrows and other objects (e.g., scale bars and
polygons) into the scene. Objects are placed at the position of the
crosshair which is set using the Edit Crosshair widget.
This widget allows a crosshair to be positioned in 3D. Crosshairs can be
positioned by picking with the cursor, or by typing image coordinates into
a coordinate box. The image view can be centered around the crosshairs.
This is a convenient way to center the scene on a known image coordinate.
Voxel values at the crosshair positioned are displayed. Line segments can
be drawn between crosshair positions. More elaborate
image analysis can be performed in conjunction with the ROI Analysis
widget (on the Goodies menu).
Edit Misc Props
Edit miscellaneous properties. Change z magnification, contour
wireframe spacing, cross hatch spacing, z plane spacing, and line
width. See this widget's help for more details.
This widget allows a user to group widgets together. Grouped widgets can all
be displayed or hidden at once. In addition, widgets can be displayed by
selecting their name from a widget list shown in this widget.
Copyright 1995 by Lawrence M. Lifshitz and the University of
Massachusetts Medical School. All rights reserved.