Set gesture password and show pressed coordinate error using 1.6.2 appium-desktop on Android simulator

Test Environment:
PC system: Win7
Appium-Server Version: appium-desktop-setup-1.6.2
Android Simulator: Nox Simulator
Android System Version: 5.5.1
Development Langument: Python 3.4.4

When I use python+appuim draw a gesture password on APP screen . find that move_to(x=0, y=0) or press(x=0, y=0), appium log show the coordinate is (360, 640) ,why not left top?

Attach screenshot and log screenshot

The code as below:

from appium import webdriver
from import WebDriverWait
from import expected_conditions as EC
from appium.webdriver.common.mobileby import MobileBy
from appium.webdriver.common.touch_action import TouchAction
import time

ta = TouchAction(driver)
ele = driver.find_element_by_id(“com.xxzb.fenwoo:id/gesturepwd_create_lockview”)
size = ele.size

start_point = ele.location, y=0).release().wait().perform()