Specifications

MIL-STD-1472E
5.15,3.6,8 Precisepo
sitioning.
Where data entry requires exwt placement of graphic elements,
users shall be provided the capability for expansion of the critical display area (e.g., zooming and
panning) to make the positioning task easier and more precise.
5.15 .3.6.9 Confirming cursor position. For most graphics data entry, pointing should be a dual
action, with the first action positioning the cursor at a desired position and the second action
confirming that position to the computer. An exception may be a design allowing “free-hand” drawing
of continuous lines where the computer must store and display a series of cursor positions as they are
entered by the user.
5.15.3.6.10 Selecting Rraphicelements. Users shall be provided some means for designating
and selecting displayed graphic elements for manipulation. Normally this function is performed by
pointing where a pointing device is provided for line drawing purposes.
5.15.3.6.11 Selecting from displayed attributes. During graphic data entry, users should be
allowed to specify attributes for displayed elements (e.g., text font, plotting symbol, line type) by
selecting from displayed samples illustrating the available options.
5.15.3.6.12 Disdayirw current attributes. During graphic data entrykditing, the sekctrxl
attributes that will affect cument actions shall be dkplayed for ready reference as a reminder of cummt
selections in effect.
5.15.3.6.13 Easv storage and retrieval. An easy and convenient means shall be provided for
saving and retrieving graphic displays for their possible re-use. The user should be allowed to
designate fdenarnes of his or her choice for the stored graphic data.
5.15.3.6.14 Automatic data re~istration. The computer should provide automatic registration or
alignment of canputex-generated graphic &@ so that variable data a.Rshown properly with respect to
fixed background or data map at any display scale.
5.15.3.6.15 Predeftimm
hic formats. Where graphic data must be plotted in predefine
standard
formats (e.g., target areas on maps, fight pians), templates or skeletal displays shall be
provided for those fotmats to aid data entry.
5.15.3.6.16 Computer derivation of aaphic data. When graphic data can be derived from data
already available in the computer, machine aids for that purpose shall be provided.
5.15.3.6.17 Drawing lines. When line drawing is required, users shall be provided with aids
for drawing straight line segments. When line segments must join or inters- computer aids shall be
provided to aid in such connection.
5.15.3.6.18 Drawing fitzures. When
a user must draw figures, computer aids shall be provided
for that purpose (e.g., templates, tracing techniques, stored forms).
5.15.3.6.19 ChanEin~ size, When editing graphic data, users shall be provided with the
capability to change the size (scale) of any x4ected element on the display, rather than delete and
recreate the element in a different size.
5.15.3.6.20 Hi@dlghting crmca!
data. When a user’s mtent]on must be dwtcted to a portion t)1a
graphic displa)’ showing critical m atmnrrna! dnta, that fraturr shmlki k highiightwi with some
distinctive means ofda[a coding.
S. IS,3.().2 I Relerence indqx.
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