Private Functions | |
private | _draw_data |
draw the data | |
private array | _find_y_range () |
Find minimum and maximum value of y data sets. |
Some Mountain chart details:
The effective y data value for a given x point and dataset is the sum of the actual y data values of that dataset and all datasets "below" it (i.e., with higher dataset indexes).
If the y data value in any dataset is undef or negative for a given x, then all datasets are treated as missing for that x.
The y minimum is always forced to zero.
To avoid a dataset area "cutting into" the area of the dataset below it, the y pixel for each dataset point will never be below the y pixel for the same point in the dataset below the dataset.
private array Chart::Mountain::_find_y_range | ( | ) |
Find minimum and maximum value of y data sets.
Reimplemented from Chart::Base.