def plot(self, qp, curve, yaxis):
w = self.width()
h = self.height()
qp.setPen(curve.pen)
qp.setBrush(curve.brush)
if curve.is_path:
if curve._path.elementCount() == 0:
curve._path.moveTo(toPixelCords(w, h, 0, self.xaxis, 0, yaxis))
for x, y in zip(curve.xdata, curve.ydata):
curve._path.lineTo(toPixelCords(w, h, x, self.xaxis, y, yaxis))
qp.drawPath(curve._path)
else:
poly = QPolygon()
for x, y in zip(curve.xdata, curve.ydata):
poly << toPixelCords(w, h, x, self.xaxis, y, yaxis)
qp.drawPolyline(poly)
def updateHandles(self):
for i, filter in enumerate(self.parent().chain._filters):
if filter._enabled is True:
fc = filter._fc * fs * 0.5
if filter._type not in (FilterType.Peak, FilterType.LShelving, FilterType.HShelving):
y = 0
else:
y = filter._g
self.handles[i] = toPixelCords(self.width(), self.height(), fc, self.xaxis, y, self.raxis)
self.parent().nodes[i].ctrls[2].setText(str(int(fc)))
self.parent().nodes[i].ctrls[3].setText("{:.1f}".format(filter._g))
else:
self.handles[i] = None
def drawTicks(self, qp, axis):
tick_pen = QPen(QColor(200, 200, 200))
qp.setPen(tick_pen)
grid_major_pen = QPen(QColor(255, 255, 255, 80))
grid_major_pen.setStyle(Qt.DashLine)
grid_minor_pen = QPen(QColor(255, 255, 255, 40))
grid_minor_pen.setStyle(Qt.DashLine)
majors = []
minors = []
ticklen = 10
w = self.width()
h = self.height()
xaxis = self.xaxis
bgap = self.height() - self.rect.height()
if axis.type == 'bottom':
majors = [100, 1000, 10000]
for i in range(1,5):
minors.extend([j * 10 ** i for j in range(2,10)])
qp.drawLine(self.rect.bottomLeft(), self.rect.bottomRight())
for tick in majors:
qp.setPen(tick_pen)
qp.drawLine(toPixelCords(w, h, tick, xaxis), h - bgap, toPixelCords(w, h, tick, xaxis), h - bgap - ticklen)
qp.drawText(toPixelCords(w, h, tick, xaxis) - bgap, h, str(tick))
qp.setPen(grid_major_pen)
qp.drawLine(toPixelCords(w, h, tick, xaxis), h - bgap - ticklen, toPixelCords(w, h, tick, xaxis), 0)
for tick in minors:
qp.setPen(tick_pen)
qp.drawLine(toPixelCords(w, h, tick, xaxis), h - bgap, toPixelCords(w, h, tick, xaxis), h - bgap - ticklen * 0.5)
qp.setPen(grid_minor_pen)
qp.drawLine(toPixelCords(w, h, tick, xaxis), h - bgap - ticklen * 0.5, toPixelCords(w, h, tick, xaxis), 0)
elif axis.type == 'left':
i = 1
while -i * 10 > axis.min:
majors.append(-i * 10)
i = i + 1
qp.drawLine(0, 0, 0, self.height() - bgap)
qp.drawText(ticklen, 15, '[dB]')
for tick in majors:
qp.setPen(tick_pen)
yp = toPixelCords(w, h, 0, xaxis, tick, self.laxis).y()
qp.drawLine(0, yp, ticklen * 0.5, yp)
qp.drawText(ticklen, yp + 4, str(tick))
qp.setPen(grid_major_pen)
qp.drawLine(ticklen * 0.5, yp, self.width(), yp)
elif axis.type == 'right':
n = 11
majors = np.linspace(axis.min, axis.max, n)
qp.drawLine(self.rect.topRight(), self.rect.bottomRight())
for tick in majors:
yp = toPixelCords(w, h, 0, xaxis, tick, axis).y()
qp.drawLine(self.width() - ticklen * 0.5, yp,
self.width(), yp)
qp.drawText(self.width() - ticklen - 10, yp + 4, str(int(tick)))
