The a-dimension is determined as follows:
Click on the points 1, 2 and 3. An isosceles triangle appears, with a help
line at point 1.
The value resulting is the height from the base. When making fine adjustments
(measure function off) to the corners or to the help line, the isosceles nature
of the triangle is preserved.
The z-dimension is determined as follows:
After clicking on points 1, 2 and 3 a triangle appears. After entering into the
table, two measured values are displayed.
Value 1 is the length of side a and value 2 the length of side b. A fine adjustment
(measure function off) can be made at click points 1, 2 and 3.