To ensure that the map scale matches the field of view distance defined for cameras
on the map, you can set the scale of the imported map image after the map is
created.
What you should know
As an alternative to setting the scale of the map, you can georeference the map.
NOTE: Map scaling and georeferencing cannot be set at the same time.
Procedure
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Open the Map designer task and select the map that you
want to scale.
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Click .
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From the Scale list, select
Specific scale.
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From the drop-down list at the top of the screen, select the units to use for the measurement (for example, meters or feet) and define the number of units to match your known measurement.
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Click Draw line.
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Click and drag your mouse across the map to draw the line.
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Move the endpoints of the line until they match the two known points of your measurement.
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In the Map designer toolbar, click
Save ().
The camera field of view and the map zoom level automatically adjust to
the scale that you defined.