def lv_example_chart_8():
#Create a stacked_area_chart.obj
stacked_area_chart.obj = lv.chart(lv.scr_act())
stacked_area_chart.obj.set_size(200, 150)
stacked_area_chart.obj.center()
stacked_area_chart.obj.set_type(lv.chart.TYPE.LINE)
stacked_area_chart.obj.set_div_line_count(5, 7)
stacked_area_chart.obj.add_event_cb(draw_event_cb,
lv.EVENT.DRAW_PART_BEGIN, None)
# Set range to 0 to 100 for percentages. Draw ticks
stacked_area_chart.obj.set_range(lv.chart.AXIS.PRIMARY_Y, 0, 100)
stacked_area_chart.obj.set_axis_tick(lv.chart.AXIS.PRIMARY_Y, 3, 0, 5, 1,
True, 30)
#Set point size to 0 so the lines are smooth
stacked_area_chart.obj.set_style_size(0, 0, lv.PART.INDICATOR)
# Add some data series
stacked_area_chart.series_list[0] = stacked_area_chart.obj.add_series(
lv.palette_main(lv.PALETTE.RED), lv.chart.AXIS.PRIMARY_Y)
stacked_area_chart.series_list[1] = stacked_area_chart.obj.add_series(
lv.palette_main(lv.PALETTE.BLUE), lv.chart.AXIS.PRIMARY_Y)
stacked_area_chart.series_list[2] = stacked_area_chart.obj.add_series(
lv.palette_main(lv.PALETTE.GREEN), lv.chart.AXIS.PRIMARY_Y)
for point in range(10):
# Make some random data
vals = [lv.rand(10, 20), lv.rand(20, 30), lv.rand(20, 30)]
fixed_point_shift = 5
total = vals[0] + vals[1] + vals[2]
draw_heights = [0, 0, 0]
int_sum = 0
decimal_sum = 0
# Fixed point cascade rounding ensures percentages add to 100
for series_index in range(3):
decimal_sum += int(
((vals[series_index] * 100) << fixed_point_shift) // total)
int_sum += int((vals[series_index] * 100) / total)
modifier = (round_fixed_point(decimal_sum, fixed_point_shift) >>
fixed_point_shift) - int_sum
# The draw heights are equal to the percentage of the total each value is + the cumulative sum of the previous percentages.
# The accumulation is how the values get "stacked"
draw_heights[series_index] = int(int_sum + modifier)
# Draw to the series in the reverse order to which they were initialised.
# Without this the higher values will draw on top of the lower ones.
# This is because the Z-height of a series matches the order it was initialised
stacked_area_chart.obj.set_next_value(
stacked_area_chart.series_list[3 - series_index - 1],
draw_heights[series_index])
stacked_area_chart.obj.refresh()
def add_data(timer,chart):
# print("add_data")
x = lv.rand(0,200)
y = lv.rand(0,1000)
chart.set_next_value2(ser, x, y)
# chart.set_next_value2(chart.gx, y)
x_array.pop(0)
x_array.append(x)
y_array.pop(0)
y_array.append(y)
def __init__(self):
self.last_id = -1
#
# Show cursor on the clicked point
#
chart = lv.chart(lv.scr_act())
chart.set_size(200, 150)
chart.align(lv.ALIGN.CENTER, 0, -10)
chart.set_axis_tick(lv.chart.AXIS.PRIMARY_Y, 10, 5, 6, 5, True, 40)
chart.set_axis_tick(lv.chart.AXIS.PRIMARY_X, 10, 5, 10, 1, True, 30)
chart.add_event_cb(self.event_cb, lv.EVENT.ALL, None)
chart.refresh_ext_draw_size()
self.cursor = chart.add_cursor(lv.palette_main(lv.PALETTE.BLUE),
lv.DIR.LEFT | lv.DIR.BOTTOM)
self.ser = chart.add_series(lv.palette_main(lv.PALETTE.RED),
lv.chart.AXIS.PRIMARY_Y)
self.ser_p = []
for i in range(10):
self.ser_p.append(lv.rand(10, 90))
self.ser.y_points = self.ser_p
newser = chart.get_series_next(None)
# print("length of data points: ",len(newser.points))
chart.set_zoom_x(500)
label = lv.label(lv.scr_act())
label.set_text("Click on a point")
label.align_to(chart, lv.ALIGN.OUT_TOP_MID, 0, -5)
def add_data(timer):
# LV_UNUSED(timer);
cnt = 0
char1.set_next_value(ser1, lv.rand(20, 90))
if cnt % 4 == 0:
chart1.set_next_value(ser2, lv_rand(40, 60))
cnt += 1
def add_data(t):
chart.set_next_value(ser, lv.rand(10, 90))
p = chart.get_point_count()
s = chart.get_x_start_point(ser)
a = chart.get_y_array(ser)
a[(s + 1) % p] = lv.CHART_POINT_NONE
a[(s + 2) % p] = lv.CHART_POINT_NONE
a[(s + 3) % p] = lv.CHART_POINT_NONE
chart.refresh()
chart.align(lv.ALIGN.CENTER, 0, 0)
chart.add_event_cb(draw_event_cb, lv.EVENT.DRAW_PART_BEGIN, None)
chart.set_style_line_width(0, lv.PART.ITEMS) # Remove the lines
chart.set_type(lv.chart.TYPE.SCATTER)
chart.set_axis_tick(lv.chart.AXIS.PRIMARY_X, 5, 5, 5, 1, True, 30)
chart.set_axis_tick(lv.chart.AXIS.PRIMARY_Y, 10, 5, 6, 5, True, 50)
chart.set_range(lv.chart.AXIS.PRIMARY_X, 0, 200)
chart.set_range(lv.chart.AXIS.PRIMARY_Y, 0, 1000)
chart.set_point_count(50)
ser = chart.add_series(lv.palette_main(lv.PALETTE.RED), lv.chart.AXIS.PRIMARY_Y)
x_array = []
y_array = []
for i in range(50):
x_array.append(lv.rand(0, 200))
y_array.append(lv.rand(0, 1000))
ser.x_points = x_array
ser.y_points = y_array
# Create an `lv_timer` to update the chart.
timer = lv.timer_create_basic()
timer.set_period(100)
timer.set_cb(lambda src: add_data(timer,chart))
def add_data(t):
chart.set_next_value(ser, lv.rand(10, 90))
p = chart.get_point_count()
s = chart.get_x_start_point(ser)
a = chart.get_y_array(ser)
a[(s + 1) % p] = lv.CHART_POINT.NONE
a[(s + 2) % p] = lv.CHART_POINT.NONE
a[(s + 2) % p] = lv.CHART_POINT.NONE
chart.refresh()
#
# Circular line chart with gap
#
chart = lv.chart(lv.scr_act())
chart.set_update_mode(lv.chart.UPDATE_MODE.CIRCULAR)
chart.set_size(200, 150)
chart.center()
chart.set_point_count(30)
ser = chart.add_series(lv.palette_main(lv.PALETTE.RED), lv.chart.AXIS.PRIMARY_Y)
#Prefill with data
for i in range(0, 30):
chart.set_next_value(ser, lv.rand(10, 90))
lv.timer_create(add_data, 200, None)
def createPage(self):
global value
global sound_ttf_alive
print("Enter SoundTTF")
# init scr
scr = lv.obj()
win = lv.obj(scr)
win.set_size(scr.get_width(), scr.get_height())
win.set_style_border_opa(0, 0)
win.set_style_radius(0, 0)
win.set_style_bg_color(lv.color_black(), 0)
win.clear_flag(lv.obj.FLAG.SCROLLABLE)
win.set_style_pad_right(30, 0)
title = lv.label(win)
title.set_text("Sound TTF")
title.set_style_text_color(lv.color_white(), 0)
title.set_style_text_font(lv.font_montserrat_28, 0)
title.align(lv.ALIGN.TOP_LEFT, 20, 0)
decibel = lv.label(win)
decibel.set_text(str(value) + "dB")
decibel.set_style_text_color(lv.color_make(0xFF, 0xA8, 0x48), 0)
decibel.set_style_text_font(lv.font_montserrat_28, 0)
decibel.align(lv.ALIGN.TOP_RIGHT, 0, 0)
chart = lv.chart(win)
chart.set_type(lv.chart.TYPE.BAR)
chart.set_style_border_opa(0, 0)
chart.set_style_bg_opa(0, 0)
chart.set_style_line_opa(0, 0)
chart.set_width(280)
chart.set_height(160)
chart.set_div_line_count(6, 0)
chart.set_point_count(12)
chart.align(lv.ALIGN.BOTTOM_MID, 20, -5)
chart.add_event_cb(chart_event_cb, lv.EVENT.DRAW_PART_END, None)
ser1 = chart.add_series(lv.color_make(0x56, 0x56, 0x56),
lv.chart.AXIS.PRIMARY_Y)
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
chart.set_next_value(ser1, lv.rand(30, 100))
backImg = lv.img(win)
backImg.set_src(RESOURCES_ROOT + "images/back.png")
backImg.set_style_align(lv.ALIGN.LEFT_MID, 0)
backImg.add_flag(lv.obj.FLAG.CLICKABLE)
backImg.add_event_cb(lambda e: sound_ttf_back_click_callback(e, win),
lv.EVENT.CLICKED, None)
backImg.set_ext_click_area(30)
backImg.add_event_cb(
lambda e: sound_ttf_back_press_callback(e, backImg),
lv.EVENT.PRESSED, None)
backImg.add_event_cb(
lambda e: sound_ttf_back_release_callback(e, backImg),
lv.EVENT.RELEASED, None)
from smart_panel import needAnimation
if (needAnimation):
lv.scr_load_anim(scr, lv.SCR_LOAD_ANIM.MOVE_LEFT, 500, 0, True)
else:
lv.scr_load_anim(scr, lv.SCR_LOAD_ANIM.NONE, 0, 0, True)
sound_ttf_alive = True
# Add ticks and labels to the axis and demonstrate scrolling
#
# Create a chart
chart = lv.chart(lv.scr_act())
chart.set_size(200, 150)
chart.center()
chart.add_event_cb(event_cb, lv.EVENT.ALL, None)
chart.refresh_ext_draw_size()
# Zoom in a little in X
chart.set_zoom_x(800)
# Add two data series
ser1 = chart.add_series(lv.palette_main(lv.PALETTE.RED),
lv.chart.AXIS.PRIMARY_Y)
ser2 = chart.add_series(lv.palette_main(lv.PALETTE.GREEN),
lv.chart.AXIS.PRIMARY_Y)
ser1_p = []
ser2_p = []
for i in range(10):
ser1_p.append(lv.rand(60, 90))
ser2_p.append(lv.rand(10, 40))
ser1.y_points = ser1_p
ser2.y_points = ser2_p
series = [ser1, ser2]
series_points = [ser1_p, ser2_p]
if cnt % 4 == 0:
chart1.set_next_value(ser2, lv_rand(40, 60))
cnt += 1
#
# Add a faded area effect to the line chart
#
# Create a chart1
chart1 = lv.chart(lv.scr_act())
chart1.set_size(200, 150)
chart1.center()
chart1.set_type(lv.chart.TYPE.LINE) # Show lines and points too
chart1.add_event_cb(draw_event_cb, lv.EVENT.DRAW_PART_BEGIN, None)
chart1.set_update_mode(lv.chart.UPDATE_MODE.CIRCULAR)
# Add two data series
ser1 = chart1.add_series(lv.palette_main(lv.PALETTE.RED),
lv.chart.AXIS.PRIMARY_Y)
ser2 = chart1.add_series(lv.palette_main(lv.PALETTE.BLUE),
lv.chart.AXIS.SECONDARY_Y)
for i in range(10):
chart1.set_next_value(ser1, lv.rand(20, 90))
chart1.set_next_value(ser2, lv.rand(30, 70))
# timer = lv.timer_t(add_data, 200, None)
