lv_point_array_transform() function

Transform an array of points

Syntax

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Summary

Declaration

Definition

void lv_point_array_transform(lv_point_t * points, size_t count, int32_t angle, int32_t scale_x, int32_t scale_y, const lv_point_t * pivot, bool zoom_first);

Implemented in lv_area.c:449

Argument

Description

points

pointer to an array of points

count

number of points in the array

angle

angle with 0.1 resolutions (123 means 12.3°)

scale_x

horizontal zoom, 256 means 100%

scale_y

vertical zoom, 256 means 100%

pivot

pointer to the pivot point of the transformation

zoom_first

true: zoom first and rotate after that; else: opposite order

from examples