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我想要检测手指(或任何对象)是否指向某个框(在屏幕上),如下图所示。映射坐标以与2D交互框交互
以下代码可用于获取手指的xy坐标,但定义交互框然后映射坐标以查看它是否与屏幕外部的任何框匹配,最简单的方法是什么?
我上Windows
使用最新版本的leap motion SDK
(3.2.0)的。然后
def on_frame(self, controller):
app_width = 800
app_height = 600
# Get the most recent frame and report some basic information
frame = controller.frame()
pointable = frame.pointables.frontmost
if pointable.is_valid:
iBox = frame.interaction_box
leapPoint = pointable.stabilized_tip_position
normalizedPoint = iBox.normalize_point(leapPoint, False)
app_x = normalizedPoint.x * app_width
app_y = (1 - normalizedPoint.y) * app_height
#The z-coordinate is not used
print ("X: " + str(app_x) + " Y: " + str(app_y))
输出看起来是这样的:
所有的X: 467.883825302 Y: 120.019626617
X: 487.480115891 Y: 141.106081009
X: 505.537891388 Y: 164.418339729
X: 522.712898254 Y: 189.527964592
X: 539.482307434 Y: 213.160014153
X: 556.220436096 Y: 233.744287491
X: 573.109865189 Y: 253.145456314
嗨,我问一个简单的方法来定义框和解决此问题的方法! 这是一个更好的方法: 'import matplotlib.path as path' 'box_a = path.Path([(0,0),(0,100),(100,100),(100,0) ])'' = isInA box_a.contains_points([(app_x,app_y)])' – theAlse