next up previous contents index
Next: Plot text Up: Graphics Interfaces Previous: Plot a coordinate box

Plot data

Data points can be presented either by symbols or by connecting lines with the routine PCDATA  (PTDATA) . The coordinates of the data ponits are expected to refer to the current graphic mode, i.e. USER (world) coordinates or NORMalized (clip) coordinates. PCDATA (PTDATA) connects the data points with lines if the line type is not equal to zero, else it will present the data points with symbols. PCDATA (PTDATA) produces a simple staircase if the bin mode flag is set.

Data can also be represented by a histogram using PCHIST (PTHIST). It offers some sophisticated options so you can draw a histogram according to your taste.

Send comments to
Last update: 1998-10-23