Accessing the VarHeader information.

[byteinsight]

Hi,

Please can you explain how I can access the VarHeader information. I'd like to be able to automatically generate an output like the telemetry_11_23_15.pdf thats available on the iRacing forum but with all the available vars including those in the SessionInfo blocks.

I already have a recusive dictionary function that outputs to json but without the types, units and descriptions. Is this something thats possible?

Thanks Chris

[kutu]

with open('vars.txt', 'w') as f:
    headers = ir._var_headers_dict
    f.write('\n'.join([
        '{0:34}{1.desc}, {1.unit}'.format(k, headers[k]).strip()
        for k in sorted(headers.keys(), key=str.lower)
    ]))

[byteinsight]

Thanks :)

[byteinsight]

Morning Kutu,

Thank you for your code snippet. I have been able to use it to access the details regarding the 'race' variables. This is the current output. sdk_vars.json

My next question is "Do we have access to the same information for WeekendInfo etc.?"

Thanks as always.

Chris :)

 def get_the_vars(self):
        self.check_sim_connection()
        if self.state.ir_connected:

            # This is so we get consistent data from inside that tick
            # and the data isn't updated by apis inbetween calls.
            self.ir.freeze_var_buffer_latest()

            print(f"Getting the SDK Vars from Session ID: {self.ir['WeekendInfo']['SessionID']}")

            race_vars = {}
            var_headers = self.ir._var_headers_dict
            for k, v in var_headers.items():
                race_vars[k] = {'desc': v.desc, 'unit': v.unit}

            sdk_dictionary = {
                'RaceVars': race_vars,
                'WeekendInfo': self.get_dict_keys(self.ir['WeekendInfo']),
                'SessionInfo': self.get_dict_keys(self.ir['SessionInfo']),
                'QualifyResultsInfo': self.get_dict_keys(self.ir['QualifyResultsInfo']),
                'CameraInfo': self.get_dict_keys(self.ir['CameraInfo']),
                'RadioInfo': self.get_dict_keys(self.ir['RadioInfo']),
                'DriverInfo': self.get_dict_keys(self.ir['DriverInfo']),
                'SplitTimeInfo': self.get_dict_keys(self.ir['SplitTimeInfo']),
            }

            json_file_name = os.path.join(self.config.get('root_path', ""), "static", "data", "sdk_vars.json")
            with open(json_file_name, 'w') as fp:
                json.dump(sdk_dictionary, fp, indent=4)

get_dict_keys looks like:

def get_dict_keys(self, current_dict):
        key_dict = {}
        if current_dict:
            for key, value in current_dict.items():
                if isinstance(value, dict):
                    sub_key_dict = self.get_dict_keys(value)
                    key_dict[key] = sub_key_dict
                elif isinstance(value, list):
                    sub_key_dict = self.get_dict_keys(value[0])
                    key_dict[key] = sub_key_dict
                else:
                    key_dict[key] = ""
        return key_dict