Python QLineF.angle方法代码示例

# 需要导入模块: from PyQt5.QtCore import QLineF [as 别名]
# 或者: from PyQt5.QtCore.QLineF import angle [as 别名]
    def setWedgeGizmo(self, neighbor_virtual_helix: int,
                            neighbor_virtual_helix_item: GridVirtualHelixItemT):
        """Adds a WedgeGizmo to oriented toward the specified neighbor vhi.

        Called by NucleicAcidPartItem _refreshVirtualHelixItemGizmos, in between
        with beginAddWedgeGizmos and endAddWedgeGizmos.

        Args:
            neighbor_virtual_helix: the id_num of neighboring virtual helix
            neighbor_virtual_helix_item:
            the neighboring virtual helix item
        """
        wg_dict = self.wedge_gizmos
        nvhi = neighbor_virtual_helix_item

        nvhi_name = nvhi.getProperty('name')
        pos = self.scenePos()
        line = QLineF(pos, nvhi.scenePos())
        line.translate(_RADIUS, _RADIUS)
        if line.length() > (_RADIUS*1.99):
            color = '#5a8bff'
        else:
            color = '#cc0000'
            nvhi_name = nvhi_name + '*'  # mark as invalid
        line.setLength(_RADIUS)
        if neighbor_virtual_helix in wg_dict:
            wedge_item = wg_dict[neighbor_virtual_helix]
        else:
            wedge_item = WedgeGizmo(_RADIUS, WEDGE_RECT, self)
            wg_dict[neighbor_virtual_helix] = wedge_item
        wedge_item.showWedge(line.angle(), color, outline_only=False)
        self._added_wedge_gizmos.add(neighbor_virtual_helix)

# 需要导入模块: from PyQt5.QtCore import QLineF [as 别名]
# 或者: from PyQt5.QtCore.QLineF import angle [as 别名]
 def image(cls, **kwargs):
     """
     Returns an image suitable for the palette.
     :rtype: QPixmap
     """
     # INITIALIZATION
     pixmap = QPixmap(kwargs['w'], kwargs['h'])
     pixmap.fill(Qt.transparent)
     painter = QPainter(pixmap)
     # INIT THE LINE
     p1 = QPointF(((kwargs['w'] - 54) / 2), kwargs['h'] / 2)
     p2 = QPointF(((kwargs['w'] - 54) / 2) + 54 - 2, kwargs['h'] / 2)
     line = QLineF(p1, p2)
     # CLACULATE HEAD COORDS
     angle = line.angle()
     p1 = QPointF(line.p2().x() + 2, line.p2().y())
     p2 = p1 - QPointF(sin(angle + M_PI / 3.0) * 8, cos(angle + M_PI / 3.0) * 8)
     p3 = p1 - QPointF(sin(angle + M_PI - M_PI / 3.0) * 8, cos(angle + M_PI - M_PI / 3.0) * 8)
     # INITIALIZE HEAD
     head = QPolygonF([p1, p2, p3])
     # DRAW EDGE LINE
     painter.setRenderHint(QPainter.Antialiasing)
     painter.setPen(QPen(QColor(0, 0, 0), 1.1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
     painter.drawLine(line)
     # DRAW EDGE HEAD
     painter.setPen(QPen(QColor(0, 0, 0), 1.1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
     painter.setBrush(QColor(0, 0, 0))
     painter.drawPolygon(head)
     return pixmap

# 需要导入模块: from PyQt5.QtCore import QLineF [as 别名]
# 或者: from PyQt5.QtCore.QLineF import angle [as 别名]
    def image(cls, **kwargs):
        """
        Returns an image suitable for the palette.
        :rtype: QPixmap
        """
        # INITIALIZATION
        pixmap = QPixmap(kwargs['w'], kwargs['h'])
        pixmap.fill(Qt.transparent)
        painter = QPainter(pixmap)
        # INITIALIZE EDGE LINE
        pp1 = QPointF(((kwargs['w'] - 52) / 2), kwargs['h'] / 2)
        pp2 = QPointF(((kwargs['w'] - 52) / 2) + 52 - 2, kwargs['h'] / 2)
        line = QLineF(pp1, pp2)
        # CALCULATE HEAD COORDINATES
        angle = radians(line.angle())
        p1 = QPointF(line.p2().x() + 2, line.p2().y())
        p2 = p1 - QPointF(sin(angle + M_PI / 3.0) * 8, cos(angle + M_PI / 3.0) * 8)
        p3 = p1 - QPointF(sin(angle + M_PI - M_PI / 3.0) * 8, cos(angle + M_PI - M_PI / 3.0) * 8)
        # INITIALIZE EDGE HEAD
        head = QPolygonF([p1, p2, p3])
        # DRAW THE POLYGON
        painter.setRenderHint(QPainter.Antialiasing)
        painter.setPen(QPen(QColor(0, 0, 0), 1.1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
        painter.drawLine(line)
        # DRAW HEAD
        painter.setPen(QPen(QColor(0, 0, 0), 1.1, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
        painter.setBrush(QColor(0, 0, 0))
        painter.drawPolygon(head)
        # DRAW THE TEXT ON TOP OF THE EDGE
        space = 2 if Platform.identify() is Platform.Darwin else 0
        painter.setFont(Font('Arial', 9, Font.Light))
        painter.drawText(pp1.x() + space, (kwargs['h'] / 2) - 4, 'instanceOf')

        return pixmap

# 需要导入模块: from PyQt5.QtCore import QLineF [as 别名]
# 或者: from PyQt5.QtCore.QLineF import angle [as 别名]
 def mouseMoveEvent(self, event):
     path, text = self._rulerObject
     baseElem = path.elementAt(0)
     canvasPos = event.localPos()
     if event.modifiers() & Qt.ShiftModifier:
         basePos = QPointF(baseElem.x, baseElem.y)
         canvasPos = self.clampToOrigin(canvasPos, basePos)
     canvasPos = self.magnetPos(canvasPos)
     x, y = canvasPos.x(), canvasPos.y()
     path.setElementPositionAt(1, x, baseElem.y)
     path.setElementPositionAt(2, x, y)
     path.setElementPositionAt(3, baseElem.x, baseElem.y)
     line = QLineF(baseElem.x, baseElem.y, x, y)
     l = line.length()
     # angle() doesnt go by trigonometric direction. Weird.
     # TODO: maybe split in positive/negative 180s (ff)
     a = 360 - line.angle()
     line.setP2(QPointF(x, baseElem.y))
     h = line.length()
     line.setP1(QPointF(x, y))
     v = line.length()
     text = "%d\n↔ %d\n↕ %d\nα %dº" % (l, h, v, a)
     self._rulerObject = (path, text)
     self.parent().update()