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SourceVuESP-IDF Framework and Examplesi80_controller samplelv_arc_rotate_obj_to_angle()

lv_arc_rotate_obj_to_angle() function

Rotate an object to the current position of the arc (knob)

Syntax

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Summary

Declaration

Definition

from lv_arc.h:235

void lv_arc_rotate_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_rotate, int32_t r_offset);

Implemented in lv_arc.c:381

Arguments

Argument

Description

obj

pointer to an arc object

obj_to_rotate

pointer to an object to rotate

r_offset

consider the radius larger with this value (< 0: for smaller radius)

References

Code

Location

Referrer

void lv_arc_rotate_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_rotate, int32_t r_offset)

lv_arc.c:381

void lv_arc_rotate_obj_to_angle(const lv_obj_t * obj, lv_obj_t * obj_to_rotate, int32_t r_offset);

lv_arc.h:235

lv_arc_rotate_obj_to_angle(arc, label, 25);

lv_example_arc_1.c:32

value_changed_event_cb()

Call Tree

lv_arc_rotate_obj_to_angle() is called by 1 function and calls 8 functions:

value_changed_event_cb()

lv_arc_rotate_obj_to_angle()

lv_obj_get_style_arc_width()

lv_obj_update_layout()

lv_obj_align_to()

lv_obj_set_style_transform_rotation()

lv_obj_set_style_transform_pivot_x()

lv_obj_set_style_transform_pivot_y()

get_angle()

get_center()

Data Use

lv_arc_rotate_obj_to_angle() reads 7 variables:

lv_align_t::LV_ALIGN_CENTER

::LV_PART_INDICATOR

lv_obj_t::coords

lv_arc_rotate_obj_to_angle()

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