Interactive Measurements - Zeiss LSM 880 Operating Manual

LSM 880 Center Screen Area / Image Containers - Display and Image Analysis
6.9.10

Interactive Measurements

3D VisArt features three tools for interactive measurements in Euclidian space. Measurements can be
performed in all graphic-card accelerated modes (Transparency, Surface, Maximum and Mixed). The
measured tools are shown as shapes in the rendered volume and can be changed there interactively.
Measurement values can be exported as a table to the clipboard for downstream processing in other
programs.
First a suitable tool has to be chosen. In order for measurements to work, the mouse cursor must
"recognize" a structure. In the Surface mode this is a uniquely identifiable surface structure, for the
transparent modes the tools look for the highest local gray level maximum.
As a sign, that the mouse cursor has "found" a structure, the cursor shape changes from
The found measurement point is drawn as a blue circle
Interactive 3D-Measurement
The measurement dialog contains a toolbar with
the available measurement tools.
The Line tool measures the length along a line in
µm. First click on a starting point and move the
mouse to the desired end point while keeping the
left mouse key depressed. The measurement is
concluded upon releasing the left mouse key.
The Angle measurement tool defines an angle between two connected line segments. First define the
starting point by clicking, and then draw the first line segment until you click on the first endpoint. Now
draw the second line segment and conclude the measurement by clicking onto the second end point.
This measures the angle in degree.
The Curve tool measures the total length (µm) along a variable multi-segmented polygon line. Please
click from point to point and finish the measurement by clicking with the right mouse key.
Measurement values are compiled in a list. In order to delete a measurement, select it in the list and press
the Remove button. One can also delete all measurements by clicking on Remove all.
The measurements can be copied into the clipboard with the Copy button.
Measurements are only transiently drawn into the volume and are not stored automatically with the
image.
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CHAPTER 1 - SYSTEM OPERATION
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3D Measurement
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