Magnifier and Navigator
Your image analysis program offers you Navigator and Magnifier to set measure- ment points as accurately as possible onto large images. Both settings can be found in the viewport manager. Click on the last button to get a list with the possible Navi- gator, Magnifier and Viewports views. Select the desired view.
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Working with Navigator:View the image in the image window with a zoom factor of 100%. When using a large image, only a part of the image will be shown. The Navigator view always shows the entire image. This way you can keep an eye on things and find your way around on large images. The red rectangle in Navigator shows which image section will be shown in the image window. Before a measurement, select a part of the image you are interested in directly in Navigator, by moving the red frame onto the overview image by keeping the left mouse button depressed.
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Working with magnifier.Select the automatic zoom factor for the image in the image window. A large im- age will be shown greatly reduced in size. The magnifier view in the viewport manager shows a magnified section of the image beneath the current position of your mouse. The current position of your mouse is shown by cross hairs in the magnifier. You can set the zoom factor for the magnifier by clicking on the image in the viewport manager with the right mouse button and selecting the de- sired zoom factor from the context menu.
Note You can move the image under the magnifier's cross hairs with the arrow keys of your keyboard during measurement. Use the arrow keys to set a point as accurately as possible.
The magnifier in the viewport manager on the left magnifies the im- age section under the current position of your mouse. (right)
Altering Measure- ment Settings
In the measurement display, click the Measurement Properties button to change the program's general settings which have to do with interactive measurements.
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Clear the Continuous measurements check box, when wanting to use various measurement methods or simply executing a single measurement. The pointer appears in the image only for one measurement. After a value has been mea- sured, the pointer returns back to the measurement button bar.•
You determine which files are to be written to the image overlay during a mea- surement in the Show labels group.•
You determine the color of the measurement objects located in the image over- lay in the Label style group. The font size and font thickness of the measure- ment overlay can be altered in the View tab.Origin of the Coordi- nate System
There are some measurements where the coordinate origin is important. Such a case is the measurement using the Points button. The measured point position is giv- en corresponding to the origin of the coordinate system.
By default, the origin of the coordinate system can be found in the upper left corner of the image. Click the Move Origin button to move the coordinate's origin to a de- sired position on the image. All values already measured are adapted to the new or- igin.
Interactive Image Measurement
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The coordinate origin is shown by a red coordi- nate system in the im- age's overlay.
In the measurement settings, mark the Use inverted Y axis check box to place the origin of the coordinate system in the lower left corner. The new position of the coor- dinate system will only be taken into consideration for newly acquired images. The origin of the coordinate system remains in the lower left corner for already exist- ing images. As it is mirrored with respect to the X axis, the resulting X values are pos- itive and the resulting Y values are now negative.
The drawing shows the origin (0,0) and the X and Y- directions of the coordinate system. You can see the values on the preset Y axis; the in- verted axis to the right.
Full Screen Mode
If you execute many interactive measurements, it is advisable to optimize the user interface for the measurement. Use the Full Screen mode, for example, to remove disruptive elements from the user interface and to create as much space for the im- age as possible. The modus can be activated by clicking the Switch context button located in the standard button bar.
To execute a measure- ment, switch to the Full Screen mode if you need as much room as possible to view the im- age. The measurement but- ton bar is not shown in Full Screen mode by de- fault. You must insert it in order to be able to ex- ecute measurements in Full Screen mode.
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Step-by-step
This is how you measure in Full Screen mode
The following step-by-step "How to..." is only an example of how an interactive mea- surement can proceed on numerous images in Full Screen mode. You can of course configure the Full Screen mode differently or you can measure in the preset mea- surement environment.
1) Load all the images you want to measure.
2) Click the Switch context button in the standard button bar.
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The image window is automatically maximized."
All but one of the button bars are hiden."
The buttons for image acquisition are additionally integrated in the image window's button bar."
The Switch context button bar appears on the left side.3) Click in the image window's button bar using the right mouse button.
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A list with all the available button bars appears .4) Select the measurement button bar from the list.
5) Pull the button bar to a preferred position, e.g. under the Switch context button bar.
6) Execute the measurement on the first image.
7) Click the Select next buffer button to display the image in the next image buffer and to measure it.
8) Exit the Full Screen mode after the measurement, in order to exit and save the measurement values.
Button Description
Close Switch context
Ends the Full Screen mode. The user interface once again looks like it did at the beginning of the Full Screen mode. Select previous
buffer
Activates the next image buffer, respectively the previous im- age buffer.
Select document Opens a list with all open windows (image window, database, graph window, 3D window, sheets and diagrams, ...) Display addi-
tional compo- nents
Opens a list with additional components, which can be added in Full Screen mode: standard button bar, image manager, and viewport manager.
Creating 3-D surfaces
Creating 3-D surfaces - Background information