Function plotMidText

Decision Tree/Decision Tree.py:276–279

(cntrPt, parentPt, txtString)

	2017-07-24
""" 
def plotMidText(cntrPt, parentPt, txtString):
	xMid = (parentPt[0]-cntrPt[0])/2.0 + cntrPt[0]											#计算标注位置					
	yMid = (parentPt[1]-cntrPt[1])/2.0 + cntrPt[1]
	createPlot.ax1.text(xMid, yMid, txtString, va="center", ha="center", rotation=30)

"""
函数说明:绘制决策树