Chart::Mountain Class Reference
Mountain class derived class for Chart to implement mountain type of plots. More...
Inheritance diagram for Chart::Mountain:
Collaboration diagram for Chart::Mountain:
Private Functions | |
| private | _draw_data |
| draw the data | |
| private array | _find_y_range () |
| Find minimum and maximum value of y data sets. | |
Additional Inherited Members | |
 Public Member Functions inherited from Chart::Base | |
| object | new () |
| Standard normal constructor. Calls. | |
| int | set (hash opts) |
| Set all options. | |
| hash | getopts () |
| get all options | |
| int | add_pt (list data) |
| Graph API Add one dataset (as a list) to the dataref. | |
| add_pt (\\\list data) | |
| Graph API Add one dataset (as a reference to a list) to the dataref via. | |
| int | add_dataset (list data) |
| Graph API Add many datasets (implemented as a list) to the dataref,. | |
| int | add_dataset (\\\list data) |
| Graph API Add many datasets (implemented as a references to alist) to the dataref,. | |
| int | add_datafile (scalar filename, scalar format) |
| Graph API it's also possible to add a complete datafile Uses. | |
| int | clear_data () |
| Clear Graph API (by undefining 'dataref'. | |
| arrayref | get_data () |
| Get array of data of the last graph. | |
| int | png (scalar file, scalar dataref) |
| Produce the graph of options set in png format. | |
| int | cgi_png (scalar dataref) |
| Produce the graph of options set in png format to be directly written for CGI. | |
| int | scalar_png (scalar dataref) |
| Produce the graph of options set in PNG format to be directly returned. | |
| int | jpeg (scalar file, scalar dataref) |
| Produce the graph of options set in JPG format to be directly plotted. | |
| int | cgi_jpeg (scalar dataref) |
| Produce the graph of options set in JPG format to be directly for CGI. | |
| int | scalar_jpeg (scalar dataref) |
| Produce the graph of options set in JPG format to be directly returned. | |
| int | make_gd (scalar dataref) |
| Produce the graph of options set in GD format to be directly. | |
| imagemap_dump () | |
| get the information to turn the chart into an imagemap | |
| minimum (list array) | |
| determine minimum of an array of values | |
| maximum (list array) | |
| determine maximum of an array of values | |
| arccos (scalar a) | |
| Function arccos(a) | |
| arcsin (scalar a) | |
| Function arcsin(a) | |
| true (scalar arg) | |
| determine true value of argument | |
| false (scalar arg) | |
| determine false value of argument | |
| modulo (scalar a, scalar b) | |
| Calculate float($a % $b) as the internal operator '' does only calculate in integers. | |
| private int | _init (scalar x, scalar y) |
| Initialize all default options here. | |
| private int | _copy_data (scalar extern_ref) |
| Copy external data via a reference to internal memory. | |
| private array | _color_spec_to_rgb (scalar role, scalar spec) |
| Return an array (list of) rgb values for spec. | |
| private int | _draw_sub_title () |
| draw the sub-title for the chart | |
| private int | _sort_data () |
| sort the data nicely (mostly for the pareto charts and xy-plots) | |
| private int | _find_x_scale () |
| For a xy-plot do the same for the x values, as '_find_y_scale' does for the y values! | |
| private int | _find_y_scale () |
| find good values for the minimum and maximum y-value on the chart | |
| private | _calcTickInterval (scalar dataset_min, scalar dataset_max, scalar flag_fixed_min, scalar flag_fixed_max, scalar minTicks, scalar maxTicks) |
| Calculate the Interval between ticks in y direction. | |
| private int | _calcXTickInterval (scalar min, scalar max, scalar minF, scalar maxF, scalar minTicks, scalar maxTicks) |
| Calculate the Interval between ticks in x direction. | |
| private int | _countTicks (scalar min, scalar max, scalar interval) |
| Works out how many ticks would be displayed at that interval. | |
| private int | _round2Tick (scalar input, scalar interval, scalar roundUP) |
| Rounds up or down to the next tick of interval size. | |
| private array | _sepFP (scalar num) |
| Seperates a number into it's base 10 floating point exponent & mantisa. | |
| private array | _find_x_range () |
| Find minimum and maximum value of x data sets. | |
| private int | _plot () |
| main sub that controls all the plotting of the actual chart | |
| private int | _draw_legend () |
| let the user know what all the pretty colors mean. | |
| private int | _draw_bottom_legend () |
| put the legend on the bottom of the chart | |
| private int | _draw_right_legend () |
| put the legend on the right of the chart | |
| private int | _draw_top_legend () |
| put the legend on top of the chart | |
| private int | _draw_left_legend () |
| put the legend on the left of the chart | |
| private int | _draw_none_legend () |
| no legend to draw. | |
| private int | _draw_x_label () |
| draw the label for the x-axis | |
| private int | _draw_y_label () |
| draw the label for the y-axis | |
| private int | _draw_ticks () |
| draw the ticks and tick labels | |
| private int | _draw_x_number_ticks () |
| draw the ticks and tick labels | |
| private int | _draw_x_ticks () |
| draw the x-ticks and their labels | |
| private int | _draw_y_ticks () |
| draw the y-ticks and their labels | |
| private int | _grey_background () |
| put a grey background on the plot of the data itself | |
| private int | _draw_grid_lines () |
| draw grid_lines | |
| private int | _draw_x_grid_lines () |
| draw grid_lines for x | |
| private int | _draw_y_grid_lines () |
| draw grid_lines for y | |
| private int | _draw_y2_grid_lines () |
| draw grid_lines for y | |
| private int | _prepare_brush (scalar color, scalar type, scalar role) |
| prepare brush | |
| Public Attributes inherited from Chart::Base | |
| Hash | named_colors |
| RGB values of named colors. | |
| private int | _check_data |
| Check the internal data to be displayed. | |
| private int | _draw |
| Plot the chart to the gd object Calls: | |
| private int | _set_colors |
| specify my colors | |
| private int | _color_role_to_index |
| return a (list of) color index(es) corresponding to the (list of) role(s) | |
| private int | _brushStyles_of_roles |
| return a (list of) brushStyles corresponding to the (list of) role(s) | |
| private int | _draw_title |
| draw the title for the chart | |
| private int | _default_f_tick |
| default tick conversion function This function is pointed to be $self->{f_x_tick} resp. | |
| private float | _xyRatio |
| Get ratio width_x/width_y. | |
| private float | _xPixelInReal |
| Get width of one Pixel in real coordinates in x-direction. | |
| private float | _yPixelInReal |
| Get width of one Pixel in real coordinates in y-direction. | |
Detailed Description
Mountain class derived class for Chart to implement mountain type of plots.
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.
Member Function Documentation
| private array Chart::Mountain::_find_y_range | ( | ) |
Find minimum and maximum value of y data sets.
- Returns
- ( min, max, flag_all_integers )
Reimplemented from Chart::Base.
The documentation for this class was generated from the following file:
- Chart/Mountain.pm
