3D Viewer

1.      Click Generate 3D button. This command will activate a 3D INTERACTIVE panel on the right.

2.      Mouse control is activated:

a.      Rotate 3D View by clicking, holding, and moving the left button of the mouse.

b.      Zoom 3D View by clicking, holding, and moving the right button of the mouse.

c.      Zoom can also be activated by the scroll wheel.

3.      3D INTERACTIVE panel enables the following options:

a.      Volume type.

• Volume render (default). Shows all data with or without the alpha values. Alpha values provide transparency of the object.

• Isosurface. The isosurface function computes and draws a surface by connecting points of a constant value within a volume of space. Activates the following options (NOTE: Other functions will not work when Isosurface is selected).

• Isovalue. This value defines the surface properties where each point has the same value (the slider shows the range from 0 to 1).

• Surface Color. Shows the color of the isosurface.

b.      Alpha map: alpha value sets the face transparency for objects. Alpha Map uses a vector of values ranging from 0 to 1. This alpha map displays the lowest alpha data values as completely transparent and the highest alpha data values as opaque. There are preset sets of vectors:

• Linear

• Profile 1- 9

• Custom. The user selects the alpha value and the intensity value. When this function is selected, two sliders corresponding to the alpha value and the intensity values are activated. Only a linear profile is currently implemented.

c.      Dimension Control. Is used to multiply the size of the object in X, Y, and Z directions to visually increase/decrease the dimensions for better visualization. No changes are introduced to the actual values in the dataset.

d.      Select a 3D Colormap under Generate 3D. Available colormaps are black&white, autumn, bone, cool, copper, gray, hot, pink, spring, summer, winter, jet, hsv, colorcube, flag, lines, prism, CT-bone, white, and contrast.

3D Slice View

Click Get 3D Slice button. This command will activate a SLICER OF AXES panel on the right. The panel has three slicers corresponding to the X, Y, and Z axes.

Click Reset to return to the default view.

Orthogonal Slice View

Click Get Orthogonal slice button. This command will activate an ORTHOGONAL SLICE SCALE CONTROL panel on the right. Enter the values to adjust the dimension (the value is used to multiply the dimension with default values equal to 1). It will only affect visualization.

Grab the intersection of the two lines and move it across the image to see different slices.

To change the intensity of the image, left-click on the image and drag the cursor up or down.