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QGraphicsView에 경로를 그리려는 중입니다. 그러나 그 직책은 옳지 않은 것처럼 보입니다. 첫 번째 점 (빨간색)은 (0,0)이며, 왼쪽 위 모서리에 있어야합니다. 도면을 올바른 위치로 이동하려면 어떻게합니까?Pyqt4 : QGraphicsItem 위치를 수정하는 방법은 무엇입니까?
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import QPointF as qpf
import sys
from PyQt4.QtGui import QPainterPath
data= [qpf(0,0),qpf(40,30),qpf(30,60),qpf(70,90),qpf(20,120),qpf(60,150)]
class Window(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.view = View(self)
layout = QtGui.QVBoxLayout(self)
layout.addWidget(self.view)
class View(QtGui.QGraphicsView):
def __init__(self, parent):
QtGui.QGraphicsView.__init__(self, parent)
self.setScene(QtGui.QGraphicsScene(self))
item = QtGui.QGraphicsRectItem(data[0].x()-2,data[0].y()-2,4,4)
item.setBrush(QtCore.Qt.red)
self.scene().addItem(item)
self.path = path = QPainterPath(data[0])
for d in data[1:]:
path.lineTo(d)
item = QtGui.QGraphicsPathItem(path)
self.scene().addItem(item)
def mouseReleaseEvent(self, event):
pos = event.pos()
rect = QtCore.QRectF(pos.x()-2, pos.y()-2,4,4)
item = QtGui.QGraphicsRectItem(rect)
self.scene().addItem(item)
if self.path.intersects(rect):
print 'on line'
else:
print 'Not belong to line (%d, %d)' % (pos.x(), pos.y())
QtGui.QGraphicsView.mouseReleaseEvent(self, event)
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
window = Window()
window.resize(400, 400)
window.show()
sys.exit(app.exec_())