1 package net.sf.openrocket.android.thrustcurve;
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3 import java.io.ByteArrayInputStream;
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4 import java.io.InputStream;
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5 import java.util.Vector;
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7 import org.xml.sax.Attributes;
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9 import android.sax.Element;
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10 import android.sax.RootElement;
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11 import android.sax.StartElementListener;
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12 import android.util.Log;
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13 import android.util.Xml;
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15 class RSEBurnFile extends MotorBurnFile {
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17 private final static String TAG = "RSEBurnFile";
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19 static void parse( MotorBurnFile that, String filecontents ) {
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21 parse(that, new ByteArrayInputStream(filecontents.getBytes()) );
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24 private final static String root_tag = "engine-database";
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25 private final static String engine_list_tag = "engine-list";
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26 private final static String engine_tag = "engine";
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28 private final static String delays_attr = "delays";
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29 private final static String len_attr = "len";
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30 private final static String propwgt_attr = "propWt";
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31 private final static String totwgt_attr = "initWt";
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33 private final static String data_tag = "data";
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34 private final static String eng_data_tag = "eng-data";
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36 private final static String time_attr="t";
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37 private final static String force_attr="f";
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39 static void parse( final MotorBurnFile that, InputStream in ) {
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41 RootElement rootEl = new RootElement(root_tag);
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42 Element engineEl = rootEl.getChild(engine_list_tag).getChild(engine_tag);
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44 final Vector<Double> datapoints = new Vector<Double>();
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46 Log.d(TAG,"parsing start");
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48 engineEl.setStartElementListener(
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49 new StartElementListener() {
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51 public void start(Attributes arg0) {
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52 Log.d(TAG,"start engineEl");
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53 that.setPropWeightG(Double.parseDouble(arg0.getValue(propwgt_attr)));
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54 that.setTotWeightG(Double.parseDouble(arg0.getValue(totwgt_attr)));
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55 that.setLength(Float.parseFloat(arg0.getValue(len_attr)));
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56 that.setDelays(arg0.getValue(delays_attr));
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57 Log.d(TAG, "me is now " + that.toString());
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62 Element datapointEl = engineEl.getChild(data_tag).getChild(eng_data_tag);
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63 datapointEl.setStartElementListener(
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64 new StartElementListener() {
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66 public void start(Attributes attributes) {
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67 Double x = Double.parseDouble(attributes.getValue(time_attr));
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68 Double y = Double.parseDouble(attributes.getValue(force_attr));
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69 Log.d(TAG, "add data point " + x + "," + y);
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77 Xml.parse(in, Xml.Encoding.UTF_8, rootEl.getContentHandler());
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78 } catch (Exception e) {
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79 throw new RuntimeException(e);
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82 that.setDatapoints(datapoints);
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86 // <engine-database>
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88 // <engine FDiv="10" FFix="1" FStep="-1." Isp="202.11" Itot="8.919" Type="single-use" auto-calc-cg="1" auto-calc-mass="1" avgThrust="3.795" burn-time="2.35" cgDiv="10" cgFix="1" cgStep="-1." code="C4" delays="3,5,7" dia="18." exitDia="0." initWt="17." len="50." mDiv="10" mFix="1" mStep="-1." massFrac="26.47" mfg="Apogee" peakThrust="11.31" propWt="4.5" tDiv="10" tFix="1" tStep="-1." throatDia="0.">
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89 // <comments>Apogee C4 RASP.ENG file made from NAR published data
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90 // File produced September 4, 2000
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91 // The total impulse, peak thrust, average thrust and burn time are
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92 // the same as the averaged static test data on the NAR web site in
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93 // the certification file. The curve drawn with these data points is as
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94 // close to the certification curve as can be with such a limited
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95 // number of points (32) allowed with wRASP up to v1.6.
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98 // <eng-data cg="25." f="0." m="4.5" t="0."/>
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99 // <eng-data cg="25." f="3.23" m="4.48533" t="0.018"/>
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100 // <eng-data cg="25." f="6.874" m="4.42671" t="0.041"/>
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101 // <eng-data cg="25." f="8.779" m="4.00814" t="0.147"/>
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102 // <eng-data cg="25." f="10.683" m="3.28643" t="0.294"/>
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103 // <eng-data cg="25." f="11.31" m="2.89252" t="0.365"/>
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104 // <eng-data cg="25." f="10.521" m="2.76585" t="0.388"/>
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105 // <eng-data cg="25." f="8.779" m="2.649" t="0.412"/>
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106 // <eng-data cg="25." f="7.04" m="2.53328" t="0.441"/>
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107 // <eng-data cg="25." f="4.555" m="2.46308" t="0.465"/>
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108 // <eng-data cg="25." f="3.479" m="2.33337" t="0.529"/>
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109 // <eng-data cg="25." f="2.981" m="2.1704" t="0.629"/>
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110 // <eng-data cg="25." f="3.23" m="2.1328" t="0.653"/>
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111 // <eng-data cg="25." f="2.816" m="2.03366" t="0.718"/>
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112 // <eng-data cg="25." f="2.733" m="1.84469" t="0.853"/>
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113 // <eng-data cg="25." f="2.65" m="1.5568" t="1.065"/>
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114 // <eng-data cg="25." f="2.567" m="1.30938" t="1.253"/>
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115 // <eng-data cg="25." f="2.401" m="1.05873" t="1.453"/>
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116 // <eng-data cg="25." f="2.484" m="0.761739" t="1.694"/>
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117 // <eng-data cg="25." f="2.484" m="0.636413" t="1.794"/>
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118 // <eng-data cg="25." f="2.733" m="0.612724" t="1.812"/>
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119 // <eng-data cg="25." f="2.401" m="0.575165" t="1.841"/>
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120 // <eng-data cg="25." f="2.401" m="0.446759" t="1.947"/>
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121 // <eng-data cg="25." f="2.401" m="0.246881" t="2.112"/>
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122 // <eng-data cg="25." f="2.401" m="0.0978809" t="2.235"/>
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123 // <eng-data cg="25." f="2.236" m="0.0429024" t="2.282"/>
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124 // <eng-data cg="25." f="1.656" m="0.0134478" t="2.312"/>
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125 // <eng-data cg="25." f="0.662" m="0.003507" t="2.329"/>
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126 // <eng-data cg="25." f="0." m="-0." t="2.35"/>
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130 // </engine-database>
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projects / debian / openrocket / blob