mirror of
https://github.com/Relintai/pandemonium_engine_easy_charts.git
synced 2024-11-14 10:17:24 +01:00
495 lines
15 KiB
GDScript
495 lines
15 KiB
GDScript
tool
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extends Node2D
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"""
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[Linechart2D] - General purpose node for Line Charts
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A line chart or line plot or line graph or curve chart is a type of chart which
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displays information as a series of data points called 'markers'
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connected by straight line segments.
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It is a basic type of chart common in many fields. It is similar to a scatter plot
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except that the measurement points are ordered (typically by their x-axis value)
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and joined with straight line segments.
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A line chart is often used to visualize a trend in data over intervals of time –
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a time series – thus the line is often drawn chronologically.
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In these cases they are known as run charts.
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/ source : Wikipedia /
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"""
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onready var FunctionsTween : Tween = $FunctionsTween
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onready var OutlinesTween : Tween = $OutlinesTween
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onready var GridTween : Tween = $GridTween
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onready var Functions : Node2D = $Functions
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onready var PointData = $PointData/PointData
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onready var Outlines : Line2D = $Outlines
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onready var Grid : Node2D = $Grid
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var point_node : PackedScene = preload("../Utilities/Point/Point.tscn")
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var FunctionLegend : PackedScene = preload("../Utilities/Legend/FunctionLegend.tscn")
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var font_size : float = 16
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var const_height : float = font_size/2*font_size/20
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var const_width : float = font_size/2
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var OFFSET : Vector2 = Vector2(0,0)
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#-------------------------------------------------------------------------#
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var origin : Vector2
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# actual distance between x and y values
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var x_pass : float
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var y_pass : float
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# vertical distance between y consecutive points used for intervals
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var v_dist : float
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# quantization, representing the interval in which values will be displayed
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var x_decim : float = 1.0
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# define values on x an y axis
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var x_chors : Array
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var y_chors : Array
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# actual coordinates of points (in pixel)
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var x_coordinates : Array
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var y_coordinates : Array
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# datas contained in file
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var datas : Array
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# amount of functions to represent
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var functions : int = 0
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# database values
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var x_datas : Array
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var y_datas : Array
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# labels displayed on chart
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var x_label : String
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var y_labels : Array
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# actual values of point, from the database
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var point_values : Array
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# actual position of points in pixel
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var point_positions : Array
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var legend : Array setget set_legend,get_legend
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# ---------------------
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export (Vector2) var SIZE : Vector2 = Vector2()
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export (String, FILE) var source : String = ""
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export (String) var delimiter : String = ";"
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export (bool) var are_values_columns : bool = false
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export (bool) var invert_xy : bool = false
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export (int,0,100) var x_values : int = 0
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export (float,1,20,0.5) var column_width : float = 10
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export (float,0,10,0.5) var column_gap : float = 2
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export (float,0,10) var y_decim : float = 5.0
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export (PoolColorArray) var function_colors = [Color("#1e1e1e")]
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export (bool) var boxed : bool = true
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export (Color) var v_lines_color : Color = Color("#cacaca")
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export (Color) var h_lines_color : Color = Color("#cacaca")
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export (Color) var outline_color : Color = Color("#1e1e1e")
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export (float,0.01,1) var drawing_duration : float = 0.3
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export (Font) var font : Font
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export (Font) var bold_font : Font
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export (Color) var font_color : Color = Color("#1e1e1e")
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export (String,"Default","Clean","Gradient","Minimal","Invert") var template : String = "Default" setget apply_template
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var templates : Dictionary = {}
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signal chart_plotted(chart)
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signal point_pressed(point)
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func _point_plotted():
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pass
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func _ready():
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pass
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func _script_changed():
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_ready()
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func _process(delta):
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if Engine.editor_hint:
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Outlines.set_default_color(outline_color)
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Grid.get_node("VLine").set_default_color(v_lines_color)
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Grid.get_node("HLine").set_default_color(h_lines_color)
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if function_colors.size():
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Functions.get_node("Function").set_default_color(function_colors[0])
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else:
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Functions.get_node("Function").set_default_color(Color("#1e1e1e"))
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if SIZE!=Vector2():
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build_chart()
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Outlines.set_point_position(0,Vector2(origin.x,0))
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Outlines.set_point_position(1,Vector2(SIZE.x,0))
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Outlines.set_point_position(2,Vector2(SIZE.x,origin.y))
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Outlines.set_point_position(3,origin)
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Outlines.set_point_position(4,Vector2(origin.x,0))
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Grid.get_node("VLine").set_point_position(0,Vector2((OFFSET.x+SIZE.x)/2,0))
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Grid.get_node("VLine").set_point_position(1,Vector2((OFFSET.x+SIZE.x)/2,origin.y))
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Grid.get_node("HLine").set_point_position(0,Vector2(origin.x,origin.y/2))
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Grid.get_node("HLine").set_point_position(1,Vector2(SIZE.x,origin.y/2))
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if function_colors.size():
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Functions.get_node("Function").set_point_position(0,origin)
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Functions.get_node("Function").set_point_position(1,Vector2(SIZE.x,0))
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#func _ready():
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# plot_line_chart("res://ChartNode/datas2.csv",";",false,0,invert_xy,function_colors,drawing_duration,SIZE)
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func clear():
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Outlines.points = []
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Grid.get_node("HLine").queue_free()
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Grid.get_node("VLine").queue_free()
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Functions.get_node("Function").queue_free()
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func load_font():
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if font != null:
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font_size = font.get_height()
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var theme : Theme = Theme.new()
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theme.set_default_font(font)
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PointData.set_theme(theme)
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if bold_font != null:
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PointData.Data.set("custom_fonts/font",bold_font)
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func _plot(source_ : String, delimiter_ : String, are_values_columns_ : bool, x_values_ : int):
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randomize()
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clear()
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load_font()
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PointData.hide()
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datas = read_datas(source_,delimiter_)
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count_functions()
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structure_datas(datas,are_values_columns_,x_values_)
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build_chart()
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calculate_pass()
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calculate_coordinates()
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calculate_colors()
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draw_chart()
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create_legend()
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emit_signal("chart_plotted", self)
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func plot():
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randomize()
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clear()
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load_font()
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PointData.hide()
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if source == "" or source == null:
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Utilities._print_message("Can't plot a chart without a Source file. Please, choose it in editor, or use the custom function _plot().",1)
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return
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datas = read_datas(source,delimiter)
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count_functions()
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structure_datas(datas,are_values_columns,x_values)
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build_chart()
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calculate_pass()
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calculate_coordinates()
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calculate_colors()
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draw_chart()
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create_legend()
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emit_signal("chart_plotted", self)
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func calculate_colors():
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if function_colors.empty() or function_colors.size() < functions:
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for function in functions:
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function_colors.append(Color("#1e1e1e"))
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func draw_chart():
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draw_outlines()
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draw_v_grid()
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draw_h_grid()
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draw_functions()
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func draw_outlines():
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if boxed:
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Outlines.set_default_color(outline_color)
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OutlinesTween.interpolate_method(Outlines,"add_point",
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Vector2(origin.x,0),Vector2(SIZE.x,0),drawing_duration*0.5,Tween.TRANS_QUINT,Tween.EASE_OUT)
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OutlinesTween.start()
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yield(OutlinesTween,"tween_all_completed")
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OutlinesTween.interpolate_method(Outlines,"add_point",
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Vector2(SIZE.x,0),Vector2(SIZE.x,origin.y),drawing_duration*0.5,Tween.TRANS_QUINT,Tween.EASE_OUT)
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OutlinesTween.start()
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yield(OutlinesTween,"tween_all_completed")
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OutlinesTween.interpolate_method(Outlines,"add_point",
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Vector2(SIZE.x,origin.y),origin,drawing_duration*0.5,Tween.TRANS_QUINT,Tween.EASE_OUT)
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OutlinesTween.start()
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yield(OutlinesTween,"tween_all_completed")
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OutlinesTween.interpolate_method(Outlines,"add_point",
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origin,Vector2(origin.x,0),drawing_duration*0.5,Tween.TRANS_QUINT,Tween.EASE_OUT)
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OutlinesTween.start()
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yield(OutlinesTween,"tween_all_completed")
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func draw_v_grid():
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for p in x_chors.size():
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var point : Vector2 = origin+Vector2((p)*x_pass,0)
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var v_grid : Line2D = Line2D.new()
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Grid.add_child(v_grid)
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v_grid.set_width(1)
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v_grid.set_default_color(v_lines_color)
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add_label(point+Vector2(-const_width/2*x_chors[p].length(),font_size/2), x_chors[p])
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GridTween.interpolate_method(v_grid,"add_point",point,point-Vector2(0,SIZE.y-OFFSET.y),drawing_duration/(x_chors.size()),Tween.TRANS_EXPO,Tween.EASE_OUT)
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GridTween.start()
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yield(GridTween,"tween_all_completed")
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func draw_h_grid():
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for p in y_chors.size():
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var point : Vector2 = origin-Vector2(0,(p)*y_pass)
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var h_grid : Line2D = Line2D.new()
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Grid.add_child(h_grid)
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h_grid.set_width(1)
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h_grid.set_default_color(h_lines_color)
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add_label(point-Vector2(y_chors[p].length()*const_width+font_size,font_size/2), y_chors[p])
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GridTween.interpolate_method(h_grid,"add_point",point,Vector2(SIZE.x,point.y),drawing_duration/(y_chors.size()),Tween.TRANS_EXPO,Tween.EASE_OUT)
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GridTween.start()
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yield(GridTween,"tween_all_completed")
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func add_label(point : Vector2, text : String):
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var lbl : Label = Label.new()
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if font != null:
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lbl.set("custom_fonts/font",font)
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lbl.set("custom_colors/font_color",font_color)
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Grid.add_child(lbl)
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lbl.rect_position = point
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lbl.set_text(text)
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func draw_functions():
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for function in point_positions.size():
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draw_function(function,point_positions[function])
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func draw_function(f_index : int, function : Array):
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var line : Line2D = Line2D.new()
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var backline : Line2D = Line2D.new()
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construct_line(line,backline,f_index,function)
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var pointv : Control
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for point in function.size():
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pointv = point_node.instance()
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line.add_child(pointv)
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pointv.connect("_mouse_entered",self,"show_data",[pointv])
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pointv.connect("_mouse_exited",self,"hide_data")
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pointv.connect("_point_pressed",self,"point_pressed")
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pointv.create_point(function_colors[f_index], Color.white, function[point],pointv.format_value(point_values[f_index][point],false,true),(x_datas[f_index] if invert_xy else y_labels[f_index]))
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if point < function.size()-1:
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FunctionsTween.interpolate_method(line,"add_point",function[point],function[point+1],drawing_duration/function.size(),Tween.TRANS_QUINT,Tween.EASE_OUT)
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# FunctionsTween.interpolate_method(backline,"add_point",function[point],function[point+1],drawing_duration/function.size(),Tween.TRANS_QUINT,Tween.EASE_OUT)
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FunctionsTween.start()
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yield(FunctionsTween,"tween_all_completed")
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func construct_line(line : Line2D, backline : Line2D, f_index : int, function : Array):
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var midtone = Color(Color(function_colors[f_index]).r,Color(function_colors[f_index]).g,Color(function_colors[f_index]).b,Color(function_colors[f_index]).a/2)
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backline.set_width(3)
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backline.set_default_color(midtone)
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backline.antialiased = true
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Functions.add_child(backline)
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line.set_width(4)
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line.set_default_color(function_colors[f_index])
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line.antialiased = true
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Functions.add_child(line)
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func read_datas(source : String, delimiter : String):
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var file : File = File.new()
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file.open(source,File.READ)
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var content : Array
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while not file.eof_reached():
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var line : PoolStringArray = file.get_csv_line(delimiter)
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content.append(line)
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file.close()
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for data in content:
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if data.size() < 2:
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content.erase(data)
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return content
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func structure_datas(database : Array, are_values_columns : bool, x_values : int):
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# @x_values can be either a column or a row relative to x values
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# @y_values can be either a column or a row relative to y values
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self.are_values_columns = are_values_columns
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match are_values_columns:
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true:
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for row in database.size():
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var t_vals : Array
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for column in database[row].size():
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if column == x_values:
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x_datas.append(database[row][column])
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else:
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if row != 0:
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t_vals.append(float(database[row][column]))
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else:
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y_labels.append(str(database[row][column]))
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if not t_vals.empty():
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y_datas.append(t_vals)
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x_label = str(x_datas.pop_front())
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false:
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for row in database.size():
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if row == x_values:
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x_datas = (database[row])
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x_label = x_datas.pop_front() as String
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else:
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var values = database[row] as Array
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y_labels.append(values.pop_front() as String)
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y_datas.append(values)
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for data in y_datas:
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for value in data.size():
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data[value] = data[value] as float
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var to_order : Array
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for cluster in y_datas.size():
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# define x_chors and y_chors
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var margin = y_datas[cluster][y_datas[cluster].size()-1]
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to_order.append(margin)
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to_order.sort()
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var margin = to_order.pop_back()
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v_dist = y_decim * pow(10.0,str(margin).length()-2)
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var multi = 0
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var p = v_dist*multi
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y_chors.append(p as String)
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while p < margin:
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multi+=1
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p = v_dist*multi
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y_chors.append(p as String)
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func build_chart():
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origin = Vector2(OFFSET.x,SIZE.y-OFFSET.y)
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func calculate_pass():
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if invert_xy:
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x_chors = y_labels as PoolStringArray
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else:
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x_chors = x_datas as PoolStringArray
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# calculate distance in pixel between 2 consecutive values/datas
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x_pass = (SIZE.x - OFFSET.x) / (x_chors.size()-1)
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y_pass = origin.y / (y_chors.size()-1)
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func calculate_coordinates():
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x_coordinates.clear()
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y_coordinates.clear()
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point_values.clear()
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point_positions.clear()
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if invert_xy:
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for column in y_datas[0].size():
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var single_coordinates : Array
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for row in y_datas:
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single_coordinates.append((row[column]*y_pass)/v_dist)
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y_coordinates.append(single_coordinates)
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else:
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for cluster in y_datas:
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var single_coordinates : Array
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for value in cluster.size():
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single_coordinates.append((cluster[value]*y_pass)/v_dist)
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y_coordinates.append(single_coordinates)
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for x in x_chors.size():
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x_coordinates.append(x_pass*x)
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for f in functions:
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point_values.append([])
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point_positions.append([])
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if invert_xy:
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for function in y_coordinates.size()-1:
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for function_value in y_coordinates[function].size():
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point_positions[function].append(Vector2(x_coordinates[function_value]+origin.x,origin.y-y_coordinates[function][function_value]))
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point_values[function].append([x_chors[function_value],y_datas[function_value][function]])
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else:
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for cluster in y_coordinates.size():
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for y in y_coordinates[cluster].size():
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point_values[cluster].append([x_chors[y],y_datas[cluster][y]])
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point_positions[cluster].append(Vector2(x_coordinates[y]+origin.x,origin.y-y_coordinates[cluster][y]))
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func redraw():
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pass
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func invert_chart():
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invert_xy = !invert_xy
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count_functions()
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redraw()
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create_legend()
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func count_functions():
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if are_values_columns:
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if not invert_xy:
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functions = datas[0].size()-1
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else:
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functions = datas.size()-1
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else:
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if invert_xy:
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functions = datas[0].size()-1
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else:
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functions = datas.size()-1
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func show_data(point):
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PointData.update_datas(point)
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PointData.show()
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func hide_data():
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PointData.hide()
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func clear_points():
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function_colors.clear()
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if Functions.get_children():
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for function in Functions.get_children():
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function.queue_free()
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func create_legend():
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legend.clear()
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for function in functions:
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var function_legend = FunctionLegend.instance()
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var f_name : String
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if invert_xy:
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f_name = x_datas[function]
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else:
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f_name = y_labels[function]
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var legend_font : Font
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if font != null:
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legend_font = font
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if bold_font != null:
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legend_font = bold_font
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function_legend.create_legend(f_name,function_colors[function],bold_font,font_color)
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legend.append(function_legend)
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func set_legend(l : Array):
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legend = l
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func get_legend() -> Array:
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return legend
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|
||
func apply_template(template_name : String):
|
||
if Engine.editor_hint:
|
||
if template_name!=null and template_name!="":
|
||
template = template_name
|
||
var custom_template = templates[template_name.to_lower()]
|
||
function_colors.resize(0)
|
||
for color in custom_template.function_colors:
|
||
function_colors.append(Color(color))
|
||
v_lines_color = Color(custom_template.v_lines_color)
|
||
h_lines_color = Color(custom_template.h_lines_color)
|
||
outline_color = Color(custom_template.outline_color)
|
||
font_color = Color(custom_template.font_color)
|
||
property_list_changed_notify()
|
||
|
||
func point_pressed(point : Point):
|
||
emit_signal("point_pressed",point)
|
||
|
||
func _enter_tree():
|
||
templates = Utilities._load_templates()
|