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3D Surface Plot

The 3D Surface Plot view displays the selected image with color-coded height information in a three-dimensional, oblique perspective. 3D Surface Plot allows selection of the viewing angle and illumination angle for a modeled light source.

3D Image Procedure

  1. Select an image file from the file Browse window at the right of the main window. Double click the thumbnail image to select and open the image
  2. You can view the 3D Surface Plot view using one of the following methods:
Or
Or
Or
  1. The Projection, Plot Type and Label Type parameters can be changed by clicking in the related window and selecting from the drop-down menus. The remaining parameters may be changed by typing the desired information in the related window or by using the keyboard and mouse keys. 
  2. To zoom in or out on the image, hold the control key down and slide the mouse up and down on the image while holding the left mouse button.
  3. To pan, hold the shift key down and move the mouse up, down, left, or right on the image while holding the left mouse button.
  4. Clicking and holding the right mouse button down while moving the mouse left and right changes the light rotation on the image. This is only available when Plot Type is set to Mixed.
  5. Clicking and holding the right button while moving the mouse up and down changes the light pitch. This is only available when Plot Type is set to Mixed.

Figure 1: 3D Surface Plot menu & window

Parameter Description
Projection

Settings:

  • Parallel: In Parallel mode, the viewing volume does not change, which has the effect keeping objects the same size as they are projected. This is useful for maintaining the size and angle of objects between the front and back of the view.
  • Perspective: objects appear to get smaller the further away they are from the eye. This is how the objects are perceived in the real world.
Plot Type

Settings:

  • Height displays the image with the surface of the image painted according to the skin channel and the color table.
  • Wire displays the image as a line representation of the scanned data. The color of the line is determined by the skin channel and the color table.
  • Mixed adds the effect of illumination to the height display.
Rotation The Rotation parameter changes as the viewing angle by rotating the displayed image about the Z axis relative to its captured orientation. Zero degrees indicates the image is rendered as captured (straight on).
Pitch The Pitch parameter changes the viewing angle by manually changing the pitch of the Y axis in the three-dimensional surface plot image. Zero degreed indicates a top down view of the captured image.
Light Rotation The Light Rotation parameter rotates the light source in the horizontal plane (xy plane). This is only available when the Plot Type is set to Mixed. 90 degrees of Light Rotation indicates the light source is on the right.
Light Pitch The Light Pitch parameter changes the viewing angle by selecting the pitch of the Z axis in the three-dimensional surface plot image. This is only available when the Plot Type is set to Mixed. 90 degrees indicates the light pitch is coming from above (high noon).
Light Intensity Selects the percentage of the imaginary light source mixed with the color-encoded height information when the Plot Type is set to Mixed.
Label Type

The Label Type parameter selects whether labels or axes are displayed with the image.

Settings:

  • All displays the axes with labels.
  • Axis displays all the axes without labeling.
  • None displays the image without labels.
Channel Displays the current channel of multiple channel scan displays

Table 1: 3D Surface Plot parameters

The Export button allows the operator to export the image in the window to either JPEG or bitmap (bmp) format.

 

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