Current Page:
NeXtMidas Training
Working with Files
Plotting Files
Features
|
|
- Plot Features:
- A feature is a single element of data rendered on a plot.
- Features can include: boxes, ellipses, points (with various symbols), lines, etc.
- Features can be added to
PLOT with the FEATURE command.
- There are several types of features; a few of them include:
- Box
- A rectangular box with center at
(x,y) and length/height
(dx,dy) .
- Elps (Ellipse)
- Draws an ellipse.
- HLine / VLine
- Draws horizontal/vertical lines.
- Symbol
- A point rendered with one of the various symbols, including:
CROSS - A 'x' symbol. TRIANGLE - A triangle symbol.
PLUS - A '+' symbol. UTRIANGLE - A triangle (up).
STAR - A '*' symbol. DTRIANGLE - A triangle (down).
CIRCLE - A circle symbol. RTRIANGLE - A triangle (right).
SQUARE - A square symbol. LTRIANGLE - A triangle (left).
DIAMOND - A diamond Symbol. ASCII-<s> - An ASCII string <s>.
DOT - A small dot/pixel. ARROW - A block arrow.
AERO - An airplane symbol.
- Symbols have a number of options, including size, fill/no-fill, rotation,
etc.
- A complete list of the feature types and a complete list of symbols is included in
the
FEATURE explain file.
- A plot can have many different features.
- Features are not necessarily homogeneous.
- Attributes of different features may vary greatly.
- Features typically have a large amount of variability while elements in a layer
are usually homogeneous.
- Like layers, it is possible to create your own feature types, see the
FEATURE explain file for details.
- For more details see the
FEATURE explain file or see
%test_feature in the test area of SYS.
Don't Make This Mistake: |
Take care when sizing features. The type Symbol uses Pixel-Size
(i.e. feature is the same size on screen regardless of zoom level), others use
Real-World-Coordinates (i.e. feature zooms in relation to the
plot).
|
|
|
|