FORMS LAYOUT CONSIDERATIONS
Locating the closest box
When you specify text to be placed in a box, the system locates the closest box within a
Example: If text is to be placed in a box located two grid units by two grid units from the origin of the form, the system selects the box closest to this point and within ten dots square. The upper left corner of this box becomes the relative origin for subsequent text placement.
•If text is to be placed in the next box horizontally, FDL begins searching at the upper right corner of the box in which previous text was placed.
•If text is to be placed in the next box vertically, the search begins at the lower left corner.
Error calculations
The calculations made for horizontal errors (for example too many characters in a line) are usually accurate. FDL uses the following formula for reporting horizontal errors:
S = P * (B/T)
S target point size
Poriginal font point size B width of the box in dots T width of the text in dots
Vertical errors The calculation made by FDL for vertical errors (for example too many lines in the box) is only a rough approximation of the actual size of text, and the computation may, in fact, be larger than the font for which an error message was given. This is because the FDL system of reckoning does not take into account the leading used within the font or provided by line spacing specifications.
The formula used by the
S = (72/300) * (D/N)
S target point size
72number of points in an inch
300number of dots in an inch
D distance between the top and bottom of the box N number of lines that are involved
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