kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
75 wiersze
2.8 KiB
Python
75 wiersze
2.8 KiB
Python
# NanoVNASaver
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#
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# A python program to view and export Touchstone data from a NanoVNA
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# Copyright (C) 2019, 2020 Rune B. Broberg
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# Copyright (C) 2020 NanoVNA-Saver Authors
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import logging
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import serial
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import numpy as np
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from PyQt5 import QtGui
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from NanoVNASaver.Hardware.NanoVNA import NanoVNA
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logger = logging.getLogger(__name__)
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class NanoVNA_F(NanoVNA):
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name = "NanoVNA-F"
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screenwidth = 800
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screenheight = 480
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def getScreenshot(self) -> QtGui.QPixmap:
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logger.debug("Capturing screenshot...")
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if not self.connected():
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return QtGui.QPixmap()
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try:
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rgba_array = self._capture_data()
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unwrapped_array = np.empty(
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self.screenwidth*self.screenheight,
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dtype=np.uint32)
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for y in range(self.screenheight // 2):
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for x in range(self.screenwidth // 2):
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unwrapped_array[
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2 * x + 2 * y * self.screenwidth
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] = rgba_array[x + y * self.screenwidth]
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unwrapped_array[
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(2 * x) + 1 + 2 * y * self.screenwidth
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] = rgba_array[
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x + (self.screenheight//2 + y) * self.screenwidth
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]
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unwrapped_array[
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2 * x + (2 * y + 1) * self.screenwidth
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] = rgba_array[
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x + self.screenwidth // 2 + y * self.screenwidth
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]
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unwrapped_array[
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(2 * x) + 1 + (2 * y + 1) * self.screenwidth
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] = rgba_array[
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x + self.screenwidth // 2 +
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(self.screenheight//2 + y) * self.screenwidth
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]
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image = QtGui.QImage(
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unwrapped_array,
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self.screenwidth, self.screenheight,
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QtGui.QImage.Format_ARGB32)
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logger.debug("Captured screenshot")
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return QtGui.QPixmap(image)
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except serial.SerialException as exc:
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logger.exception("Exception while capturing screenshot: %s", exc)
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return QtGui.QPixmap()
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