Direction class derived class for Chart to implement direction charts. More...
Public Object Methods | |
| |
int | set (hash opts) |
Set all options. | |
int | add_dataset (list data) |
Add many datasets to the dataref. |
Protected Object Methods | |
protected retval | _calcTickInterval () |
Private Functions | |
private | _draw_data |
finally get around to plotting the data for direction charts | |
private int | _find_y_scale () |
we use the find_y_scale methode to determine the labels of the circles and the amount of them | |
private | _calcTickInterval (scalar dataset_min, scalar dataset_max, scalar flag_fixed_min, scalar flag_fixed_max, scalar minTicks, scalar maxTicks) |
Calculates the ticks for direction in normalised units. | |
private int | _draw_y_ticks () |
draw the circles and the axes | |
private int | _draw_x_ticks () |
We don't need x ticks, it's all done in _draw_y_ticks. | |
private int | _prepare_brush (scalar color, scalar type) |
set the gdBrush object to trick GD into drawing fat lines | |
private int | _draw_legend () |
let them know what all the pretty colors mean | |
private array | _find_y_range () |
Find minimum and maximum value of y data sets. |
Additional Inherited Members | |
![]() | |
object | new () |
Standard normal constructor. Calls. | |
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 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 | _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_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 | _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 | |
![]() | |
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. |
Direction class derived class for Chart to implement direction charts.
private Chart::Direction::_calcTickInterval | ( | scalar | dataset_min, |
scalar | dataset_max, | ||
scalar | flag_fixed_min, | ||
scalar | flag_fixed_max, | ||
scalar | minTicks, | ||
scalar | maxTicks | ||
) |
Calculates the ticks for direction in normalised units.
Calculate the Interval between ticks in y direction and compare the number of ticks to the user given values min_y_ticks, max_y_ticks
[in] | dataset_min | Minimal value in y direction |
[in] | dataset_max | Maximal value in y direction |
[in] | flag_fixed_min | Indicator whether the dataset_min value is fixed |
[in] | flag_fixed_max | Indicator whether the dataset_max value is fixed |
[in] | minTicks | Minimal number of ticks wanted |
[in] | maxTicks | Maximal number of ticks wanted |
Reimplemented from Chart::Base.
private int Chart::Direction::_draw_legend | ( | ) |
let them know what all the pretty colors mean
Overwrite corresponding function of Base
Reimplemented from Chart::Base.
private int Chart::Direction::_draw_x_ticks | ( | ) |
We don't need x ticks, it's all done in _draw_y_ticks.
Overwrites the corresponding function in Base
Reimplemented from Chart::Base.
private int Chart::Direction::_draw_y_ticks | ( | ) |
draw the circles and the axes
Overwrites _draw_y_ticks() of Base class
Reimplemented from Chart::Base.
private array Chart::Direction::_find_y_range | ( | ) |
Find minimum and maximum value of y data sets.
Overwrites corresponding Base function
Reimplemented from Chart::Base.
private int Chart::Direction::_find_y_scale | ( | ) |
we use the find_y_scale methode to determine the labels of the circles and the amount of them
This function is an overwrite to the same function found in the base class Chart::Base
Reimplemented from Chart::Base.
private int Chart::Direction::_prepare_brush | ( | scalar | color, |
scalar | type | ||
) |
set the gdBrush object to trick GD into drawing fat lines
[in] | color | Color to be used |
[in] | type | Type of line |
int Chart::Direction::add_dataset | ( | list | data | ) |
Add many datasets to the dataref.
Graph API
Overwrite Base method
@data | Dataset to add |
Reimplemented from Chart::Base.
int Chart::Direction::set | ( | hash | opts | ) |
Set all options.
[in] | %opts | Hash of options to the Chart |
main method for customizing the chart, lets users specify values for different parameters
dont check the number of points in the added datasets in a polarplot
overwrite Base method
Reimplemented from Chart::Base.