BLT supports three types of charts with the graph, stripchart, and barchart commands. The methods and options for each of these widgets are nearly identical; therefore, all three are described here with the differences noted as appropriate.
The graph command creates a new
graph widget named
plotting two-dimensional data (x- and y-coordinates) using
symbols and/or connecting lines. A graph widget is composed of
several components: coordinate axes, data elements, a legend,
a grid, crosshairs, pens, a PostScript generator, and
annotation markers. Methods exist for creating (if necessary)
and manipulating each of these components.
The stripchart command creates a
new strip chart widget named
pathName. A strip chart widget is
almost exactly the same as a graph widget except that the
x-axis typically refers to time points and has better support
for maintaining a view of recent data. The primary difference
is support for the -autorange and
-shiftby axis options.
The barchart command creates a new
bar chart widget named
bar chart widget is essentially the same as a graph widget
except that vertical bars are used to represent the data
rather than symbols and lines. Therefore the bar chart has
very different element and pen configuration options. It also
supports the additions to the axis configuration used by the
strip chart to handle dynamic data.
Any number ...