Submitted Issue https://github.com/gnuradio/gnuradio/issues/5359.
On Mon, Nov 29, 2021 at 7:31 PM Jeff Long <[email protected]> wrote: > The Variable Config is definitely a strange one, when used as you are > using it (read and write to runtime-selectable sections). Here's the code > it generates for handling a change in section (e.g., toggling between 40 > and 80 in your example). I've created two config variables, freq and lna. > > def set_section(self, section): > self.section = section > self._freq_config_config = configparser.ConfigParser() > self._freq_config_config.read('/tmp/testconfig.ini') > if not self._freq_config_config.has_section(self.section): > self._freq_config_config.add_section(self.section) > self._freq_config_config.set(self.section, 'freq', str(self.freq)) > self._freq_config_config.write(open('/tmp/testconfig.ini', 'w')) > self._lna_config_config = configparser.ConfigParser() > self._lna_config_config.read('/tmp/testconfig.ini') > if not self._lna_config_config.has_section(self.section): > self._lna_config_config.add_section(self.section) > self._lna_config_config.set(self.section, 'lna', str(self.lna)) > self._lna_config_config.write(open('/tmp/testconfig.ini', 'w')) > self._section_callback(self.section) > > which says it will do exactly what you're seeing. This is the first time > I've heard of the block, actually, so I'm sure it's not getting much > attention! > > I'll put in an Issue on this. You should probably find another way to do > what you are thinking of, since I don't think this will be addressed right > away. Thanks for the report. > > On Mon, Nov 29, 2021 at 6:22 PM Elmore's <[email protected]> wrote: > >> Variable Config >> ID: I_image_config >> Section: image_sections[image_chooser] >> Option: I_image_correct >> Write Back: I_Gain >> >> GUI Range >> ID: I_Gain >> Default: I_image_config >> >> I found a question similar to this one on the forum but no one answered >> it so I hope I can get a response to this one. >> >> I have shown above my configuration for two blocks in my flowgraph. >> >> I wish to write to and read from an INI file with 5 sections. >> >> I can successfully write the value of I_Gain to I_image_correct in a >> single section when I make an adjustment to the I_Gain Range control. I >> want to use a Chooser with the ID: image_chooser to select another section >> to write a value of I_Gain to that section. However, the Chooser callback >> writes the current value of I_Gain immediately to the file without my >> making a change to I_Gain. This is a major problem if I wish to select a >> Section that I had already stored a value in. Whatever the current value of >> I_Gain happens to be is written to the Section. For example: I change >> I_Gain to 1.1 for Section 40. I then select Section 80 which immediately >> upon selection has 1.1 written to it. I then select I_Gain = 1.5 which >> stores that value in Section 80. I then select Section 40 in hopes of using >> I_Gain = 1.1 but find that in the process of selection the value of I_Gain >> has changed to 1.5. This makes no sense since it defeats the purpose of >> saving a configuration in a file. >> >> How do I save parameters to different sections without the sections being >> overwritten? >> >> The other main issue is how do I read from the file so that I can set >> I_Gain when the Section is selected? I don’t see how to do this. The only >> time I have seen the file read is on initialization. I presume this is due >> to the fact that I set the default value of I_Gain to I_image_config. I >> need to to be able to read a value on demand. >> >> By the way, I have 3 parameters to save and recall in each of 5 Sections. >> >> Any help will be greatly appreciated. I have been wrestling with this >> issue for quite some time. >> >> >> >> >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> >> Virus-free. >> www.avg.com >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> >> <#m_8892035469763263520_m_-7819765792157969049_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> >
