Отчет_Разработка мобильных приложений_ЛР3. РМП_лр3. Необработанные
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else //многосегментный { seg.name=header[0]; seg.number_of_segments=Integer.parseInt(header[0].substring(header[0].indexOf("/") + 1)); } // читаемформатсигналов while ((str = br.readLine()) != null) { if (str.startsWith("#", 0)) { str1+= str.replaceAll("#","")+"\n\r"; } else { if (cnt<=seg.number_of_signals) { signal[cnt-1]=new SignHeader(); signal[cnt-1].index=cnt; str=str.replaceAll("\\n",""); str=str.replaceAll("\\r",""); str=str.trim(); if (str!="") { SignalHeader(str,cnt-1); cnt++; } }} } } catch (FileNotFoundException e) { e.printStackTrace(); return; } catch (IOException e) { tvOut.setText("IOException"); e.printStackTrace(); return; } tvHeader.setText(str1+"\n\rname: "+ seg.name+"\n\rnumber_of_segments: "+seg.number_of_segments+"\n\rnumber_of_signals: "+seg.number_of_signals+ "\n\rsampling_frequency: "+seg.sampling_frequency+"\n\rcounter_frequency: "+seg.counter_frequency+ "\n\rbase_counter_value: "+seg.base_counter_value+"\n\rnumber_of_samples_per_signal: "+seg.number_of_samples_per_signal+ "\n\rbase_time: "+seg.base_time+"\n\rbase_date: "+seg.base_date); int i=signal_spinner.getSelectedItemPosition(); if (cnt-1 "\n\rskew: "+signal[i].skew+"\n\rbyte_offset: "+signal[i].byte_offset+ "\n\radc_gain: "+signal[i].adc_gain+"\n\rbaseline: "+signal[i].baseline+ "\n\runits: "+signal[i].units+"\n\radc_resolution: "+signal[i].adc_resolution+"\n\radc_zero: "+signal[i].adc_zero+ "\n\rinitial_value: "+signal[i].initial_value+"\n\rchecksum: "+signal[i].checksum+"\n\rblock_size: " +signal[i].block_size+ "\n\rdescription: "+signal[i].description); return; } //Чтениеописанияформатадлякаждогосигналаиззаголовочногофайла void SignalHeader(String str,int cnt) { String arr[] = str.split(" "); // разбиваемстрокупопробелу if (arr[0]==" ") return; signal[cnt].file_name=arr[0]; if (arr[1].indexOf("x") == -1) signal[cnt].format=Integer.parseInt(arr[1]); else { signal[cnt].format = Integer.parseInt(arr[1].substring(0,arr[1].indexOf("x"))); if (arr[1].indexOf(":") == -1) signal[cnt].samples_per_frame=Integer.parseInt(arr[1].substring(arr[1].indexOf("x")+1)); else { signal[cnt].samples_per_frame=Integer.parseInt(arr[1].substring(arr[1].indexOf("x")+1,arr[1].indexOf(":"))); if (arr[1].indexOf("+") == -1) signal[cnt].skew=Integer.parseInt(arr[1].substring(arr[1].indexOf(":")+1)); else { signal[cnt].skew=Integer.parseInt(arr[1].substring(arr[1].indexOf(":")+1,arr[1].indexOf("+"))); signal[cnt].byte_offset=Integer.parseInt(arr[1].substring(arr[1].indexOf("+")+1)); } max_skew = Math.max(max_skew, signal[cnt].skew); } } if (arr.length>2) { if (arr[2].indexOf("(") == -1){ signal[cnt].adc_gain = Float.parseFloat(arr[2]); if (arr.length>4) signal[cnt].baseline=Integer.parseInt(arr[4]); else signal[cnt].baseline=0; } else { signal[cnt].adc_gain = Float.parseFloat(arr[2].substring(0,arr[2].indexOf("(")-1)); signal[cnt].baseline=Integer.parseInt(arr[2].substring(arr[2].indexOf("(")+1,arr[2].indexOf(")"))); } if (arr[2].indexOf("/") == -1) signal[cnt].units="mv"; else signal[cnt].units=arr[2].substring(arr[2].indexOf("/")+1); } else signal[cnt].adc_gain=200; if (arr.length>3) { signal[cnt].adc_resolution = Integer.parseInt(arr[3]); if (arr.length>4) { signal[cnt].adc_zero = Integer.parseInt(arr[4]); if (arr.length>5) { signal[cnt].initial_value = Integer.parseInt(arr[5]); if (arr.length>6) { signal[cnt].checksum = Integer.parseInt(arr[6]); if (arr.length>7) { signal[cnt].block_size = Integer.parseInt(arr[7]); if (arr.length>8) signal[cnt].description=arr[8]; else signal[cnt].description=""; } else signal[cnt].block_size=0; } else signal[cnt].checksum=0; } else signal[cnt].initial_value=signal[cnt].adc_zero; } else signal[cnt].adc_zero=0; } else signal[cnt].adc_resolution=12; // covers only amplitude formats if(signal[cnt].adc_resolution>highest_adc_resolution) { highest_adc_resolution = signal[cnt].adc_resolution; } int bits_per_frame = signal[cnt].format * signal[cnt].samples_per_frame; total_bits_per_frame += bits_per_frame; total_bytes_per_frame = total_bits_per_frame / 8; if(signal[cnt].samples_per_frame>highest_samples_per_frame) { highest_samples_per_frame = signal[cnt].samples_per_frame; } } //------------------------------------------------------------------------------------------- void SignalFile() { cntPoints=0; //отступдляданногоинтервалаотначалавыбранногосегмента: int BaseInterval= (int) ((Nint-1)*Integer.parseInt(Intervals[interval_spinner.getSelectedItemPosition()])*seg.sampling_frequency*total_bytes_per_frame); //количествобайтмеждуточкфмиграфика int tim= (int) (Integer.parseInt(Intervals[interval_spinner.getSelectedItemPosition()])*seg.sampling_frequency*total_bytes_per_frame/100); int sig=signal_spinner.getSelectedItemPosition(); int signalBase=sig*signal[sig].format;//началоотсчетадляданногосигналавофрейме int skewedSignalBase; short num = 0; int i=0; byte[] buffer = new byte[tim]; try { FileInputStream inputStream = new FileInputStream(fileD); // открываемпотокдлячтения BufferedInputStream br = new BufferedInputStream(inputStream); br.skip(BaseInterval);//пропускаемучастокдоначалаинтервала // читаемсодержимоефрейма while (br.read(buffer,0,tim) !=-1) { skewedSignalBase = signalBase + signal[sig].skew *tim; num= ByteBuffer.wrap(buffer).getShort(skewedSignalBase); if(num != -1 << 15) { // WFDB calls this value VFILL // } // else samples[cntPoints]=(float)-0.123456789; samples[cntPoints]=((float)(num - signal[sig].baseline)) / signal[sig].adc_gain; cntPoints++; if (cntPoints==101) break;} i++; if (i>101) break; } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } ShowGraph(); return; } //Формированиеграфика void ShowGraph() { float Sec=Integer.parseInt(Intervals[interval_spinner.getSelectedItemPosition()]); DataPoint[] points = new DataPoint[cntPoints]; DataPoint p; for (int i = 0; i < cntPoints; i++) { p=new DataPoint(i, samples[i]); points[i] = p; } LineGraphSeries linegraph.removeAllSeries(); linegraph.addSeries(lineSeries); // set manual X bounds StaticLabelsFormatter staticLabelsFormatter = new StaticLabelsFormatter(linegraph); staticLabelsFormatter.setHorizontalLabels(new String[] {"0",String.valueOf(Sec*0.25), String.valueOf(Sec*0.5), String.valueOf(Sec*0.75), String.valueOf(Sec)}); linegraph.getGridLabelRenderer().setLabelFormatter(staticLabelsFormatter); } } |