Stroke erase method, terminal, and computer-readable storage medium

A terminal device, comprising a processor, a memory, and a communication bus;

• wherein
• the communication bus is configured to implement connection communication between the processor and the memory;
• and
• the processor is configured to execute one or more programs stored in the memory to perform steps of a stroke erasing method, wherein the method comprises:
• determining an intersecting stroke on an electronic whiteboard that intersects with an erasing region;
• traversing each of collection points of the intersecting stroke to determine whether a line of connection between each two adjacent ones of the collection points intersects with the erasing region;
• determining, in response to the line of connection intersecting with the erasing region, an approximate intersection point between the line of connection and the erasing region by means of midpoint recursion;
• and
• splitting the intersecting stroke into segments according to the approximate intersection point, and drawing the segments not erased by the erasing region.

A non-transitory computer-readable storage medium, storing one or more programs, wherein the one or more programs, when executed by one or more processors, cause the one or more processors to perform steps of a stroke erasing method, wherein the method comprises:

• determining an intersecting stroke on an electronic whiteboard that intersects with an erasing region;
• traversing each of collection points of the intersecting stroke to determine whether a line of connection between each two adjacent ones of the collection points intersects with the erasing region;
• determining, in response to the line of connection intersecting with the erasing region, an approximate intersection point between the line of connection and the erasing region by means of midpoint recursion;
• and
• splitting the intersecting stroke into segments according to the approximate intersection point, and drawing the segments not erased by the erasing region.