Twk: Lift_Cal_01

// Need G4P library

import g4p_controls.*;

import java.awt.Font;

​

//global variables

float volume = 100; //volume in l

float altitude = 0; //altitude over the sea [m]

float temperature = 25; //outside temperature [°C]

float superheat = 0; //difference of lifting gas to outside temperatuer [°C]

byte lifting_gas = 0; //0=He 1=Ballonium 2=H2 3=Air 4=Methan 5=N2

​

float lift = 102; //resulting lift in [g]

​

boolean update_flag = true;

​

​

public void setup() {

  size(320, 540, JAVA2D);

  createGUI();

  customGUI();

  // Place your setup code here

}

​

public void draw() {

  background(230);

​

  if (update_flag) {

    //updating variables

​

    volume = float(textfield2.getText());

    altitude = float(textfield3.getText());

    temperature = float(textfield4.getText());

    superheat = float(textfield5.getText());

    lift = float(textfield1.getText());

​

    float lift_gas_molar_mass = 0.004; //molar mass for helium [kg/mol]

​

    String lift_gas_name = "";

    switch(lifting_gas) {

    case 0:

      lift_gas_name = "Helium";

      lift_gas_molar_mass = 0.004; //molar mass Helium [kg/mol]

      break;

​

    case 1:

      lift_gas_name = "Ballonium";

      lift_gas_molar_mass = 0.0041; //molar mass Ballonium [kg/mol]

      break;

​

    case 2:

      lift_gas_name = "Hydrogen";

      lift_gas_molar_mass = 0.002; //molar mass H2 [kg/mol]

      break;

​

    case 3:

      lift_gas_name = "Air";

      lift_gas_molar_mass =  0.028949; //molar mass Air [kg/mol]

      break;

​

    case 4:

      lift_gas_name = "Methan";

      lift_gas_molar_mass =  0.01604; //molar mass Methan [kg/mol]

      break;

​

    case 5:

      lift_gas_name = "Nitrogen";

      lift_gas_molar_mass =  0.02802; //molar mass Methan [kg/mol]

      break;

    }

​

​

​

    //calculating air density

    float air_molar_mass = 0.028949; //average molar mass of air 

    float gas_constant = 8.314; //ideal gas constant

​

    float pressure = 101.35 * exp(-altitude/7990); //calculating air pressure in kPa for height, estimation only http://de.wikipedia.org/wiki/Luftdruck#Abnahme_mit_der_H.C3.B6he

    float air_mol_volume = (1 * gas_constant * (temperature+273.15)) / pressure; //universal gas formula: http://de.wikipedia.org/wiki/Ideales_Gas 

​

    float air_density = air_molar_mass / (air_mol_volume*0.001);

​

    //calculating lift gas density

    float lift_gas_temperature = temperature + superheat;

    float lift_gas_mol_volume = (1 * gas_constant * (lift_gas_temperature+273.15)) / pressure;

​

    float lift_gas_density = lift_gas_molar_mass / (lift_gas_mol_volume * 0.001);

​

    //calculating lift or volume 

​

    if (checkbox7.isSelected()) { //either update Lift or Volume

      volume = lift / (air_density - lift_gas_density);

      textfield2.setText(str(floor(volume)));

    }

    else {

      lift = (air_density - lift_gas_density) * volume;

      textfield1.setText(str(floor(lift)));

    }

​

    textarea1.setText("Pressure[hPa]=;" + nf(pressure*10, 1, 2) + "; Mol Air Volume[l]=;" + nf(air_mol_volume, 1, 2) + ";\nAir Density[kg/m³]=;" + nf(air_density, 1, 2) + ";Mol Gas Volume[l]=;" + nf(lift_gas_mol_volume, 1, 2) + ";\nGas Density[kg/m³]=;" + nf(lift_gas_density, 1, 3) + ";Gas=;"+lift_gas_name + ";\nGas Mol Mass[g/mol]=;"+nf(lift_gas_molar_mass*1000, 1, 2) + ";Lift[g]=;"+nf(lift, 1, 2) + ";\nVolume[l]=;" + nf(volume, 1, 2) + ";Altitude[m]=;" + str(round(altitude)) + ";\nTemperature[°C]=;"+nf(temperature,1,0)+";Superheat[°C]=;"+nf(superheat,1,0));

    update_flag = false;

  }//end of update if

}

​

// Use this method to add additional statements

// to customise the GUI controls

public void customGUI() {

​

  label1.setFont(new Font("Arial", Font.PLAIN, 28));

  label2.setFont(new Font("Arial", Font.PLAIN, 20));

  label3.setFont(new Font("Arial", Font.PLAIN, 20));

  label4.setFont(new Font("Arial", Font.PLAIN, 20));

  label5.setFont(new Font("Arial", Font.PLAIN, 20));

  label6.setFont(new Font("Arial", Font.PLAIN, 20));

​

  textfield1.setFont(new Font("Arial", Font.PLAIN, 23));

  textfield2.setFont(new Font("Arial", Font.PLAIN, 23));

  textfield3.setFont(new Font("Arial", Font.PLAIN, 23));

  textfield4.setFont(new Font("Arial", Font.PLAIN, 23));

  textfield5.setFont(new Font("Arial", Font.PLAIN, 23));

}

​

/* =========================================================

 * ====                   WARNING                        ===

 * =========================================================

 * The code in this tab has been generated from the GUI form

 * designer and care should be taken when editing this file.

 * Only add/edit code inside the event handlers i.e. only

 * use lines between the matching comment tags. e.g.

​

 void myBtnEvents(GButton button) { //_CODE_:button1:12356:

     // It is safe to enter your event code here  

 } //_CODE_:button1:12356:

 * Do not rename this tab!

 * =========================================================

 */

​

public void textfield1_change1(GTextField source, GEvent event) { //_CODE_:textfield1:674616:

  update_flag = true;

} //_CODE_:textfield1:674616:

​

public void textfield2_change1(GTextField source, GEvent event) { //_CODE_:textfield2:581358:

    update_flag = true;

} //_CODE_:textfield2:581358:

​

public void custom_slider1_change1(GCustomSlider source, GEvent event) { //_CODE_:custom_slider1:316299:

   textfield2.setText(str(floor(custom_slider1.getValueF())));

  update_flag = true;

} //_CODE_:custom_slider1:316299:

​

public void textfield3_change1(GTextField source, GEvent event) { //_CODE_:textfield3:943852:

    update_flag = true;

} //_CODE_:textfield3:943852:

​

public void custom_slider2_change1(GCustomSlider source, GEvent event) { //_CODE_:custom_slider2:239720:

  textfield3.setText(str(floor(custom_slider2.getValueF())));

  update_flag = true;

} //_CODE_:custom_slider2:239720:

​

public void textfield4_change1(GTextField source, GEvent event) { //_CODE_:textfield4:418942:

    update_flag = true;

} //_CODE_:textfield4:418942:

​

public void custom_slider3_change1(GCustomSlider source, GEvent event) { //_CODE_:custom_slider3:809491:

  textfield4.setText(str(floor(custom_slider3.getValueF())));

  update_flag = true;

} //_CODE_:custom_slider3:809491:

​

public void textfield5_change1(GTextField source, GEvent event) { //_CODE_:textfield5:315544:

​

   update_flag = true;

} //_CODE_:textfield5:315544:

​

public void custom_slider4_change1(GCustomSlider source, GEvent event) { //_CODE_:custom_slider4:548807:

  textfield5.setText(str(floor(custom_slider4.getValueF()))); 

  update_flag = true;

} //_CODE_:custom_slider4:548807:

​

public void checkbox1_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox1:690664:

​

​

  if (checkbox1.isSelected()) {

    lifting_gas = 0;

    checkbox2.setSelected(false);

    checkbox3.setSelected(false);

    checkbox4.setSelected(false);

    checkbox5.setSelected(false);

    checkbox6.setSelected(false);

  }

  update_flag = true;

} //_CODE_:checkbox1:690664:

​

public void checkbox2_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox2:795569:

  if (checkbox2.isSelected()) {

    lifting_gas = 1;

    checkbox1.setSelected(false);

    checkbox3.setSelected(false);

    checkbox4.setSelected(false);

    checkbox5.setSelected(false);

    checkbox6.setSelected(false);

  }

  update_flag = true;

} //_CODE_:checkbox2:795569:

​

public void checkbox3_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox3:577526:

  if (checkbox3.isSelected()) {

    lifting_gas = 2;

    checkbox1.setSelected(false);

    checkbox2.setSelected(false);

    checkbox4.setSelected(false);

    checkbox5.setSelected(false);

    checkbox6.setSelected(false);

  }

  update_flag = true;

} //_CODE_:checkbox3:577526:

​

public void checkbox4_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox4:218252:

  if (checkbox4.isSelected()) {

    lifting_gas = 3;

    checkbox1.setSelected(false);

    checkbox2.setSelected(false);

    checkbox3.setSelected(false);

    checkbox5.setSelected(false);

    checkbox6.setSelected(false);

  }

  update_flag = true;

} //_CODE_:checkbox4:218252:

​

public void checkbox5_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox5:912287:

  if (checkbox5.isSelected()) {

    lifting_gas = 4;

    checkbox1.setSelected(false);

    checkbox2.setSelected(false);

    checkbox3.setSelected(false);

    checkbox4.setSelected(false);

    checkbox6.setSelected(false);

  }

  update_flag = true;

} //_CODE_:checkbox5:912287:

​

public void checkbox6_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox6:470862:

  if (checkbox6.isSelected()) {

    lifting_gas = 5;

    checkbox1.setSelected(false);

    checkbox2.setSelected(false);

    checkbox3.setSelected(false);

    checkbox4.setSelected(false);

    checkbox5.setSelected(false);

  }

  update_flag = true;

} //_CODE_:checkbox6:470862:

​

public void textarea1_change1(GTextArea source, GEvent event) { //_CODE_:textarea1:357472:

} //_CODE_:textarea1:357472:

​

public void checkbox7_clicked1(GCheckbox source, GEvent event) { //_CODE_:checkbox7:676745:

​

} //_CODE_:checkbox7:676745:

​

​

​

// Create all the GUI controls. 

// autogenerated do not edit

public void createGUI(){

  G4P.messagesEnabled(false);

  G4P.setGlobalColorScheme(GCScheme.BLUE_SCHEME);

  G4P.setCursor(ARROW);

  if(frame != null)

    frame.setTitle("Sketch Window");

  textfield1 = new GTextField(this, 112, 16, 136, 32, G4P.SCROLLBARS_NONE);

  textfield1.setText("102");

  textfield1.setOpaque(true);

  textfield1.addEventHandler(this, "textfield1_change1");

  textfield2 = new GTextField(this, 184, 80, 128, 32, G4P.SCROLLBARS_NONE);

  textfield2.setText("100");

  textfield2.setOpaque(true);

  textfield2.addEventHandler(this, "textfield2_change1");

  label1 = new GLabel(this, 8, 16, 136, 32);

  label1.setText("Lift [g] = ");

  label1.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  label1.setOpaque(false);

  label2 = new GLabel(this, 8, 80, 176, 32);

  label2.setText("Volume [l]");

  label2.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  label2.setOpaque(false);

  custom_slider1 = new GCustomSlider(this, 8, 112, 304, 24, "blue18px");

  custom_slider1.setLimits(100.0, 0.0, 2000.0);

  custom_slider1.setNbrTicks(100);

  custom_slider1.setNumberFormat(G4P.INTEGER, 0);

  custom_slider1.setOpaque(false);

  custom_slider1.addEventHandler(this, "custom_slider1_change1");

  label3 = new GLabel(this, 8, 152, 176, 32);

  label3.setText("Altitude [m]");

  label3.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  label3.setOpaque(false);

  textfield3 = new GTextField(this, 184, 152, 128, 32, G4P.SCROLLBARS_NONE);

  textfield3.setText("0");

  textfield3.setOpaque(true);

  textfield3.addEventHandler(this, "textfield3_change1");

  custom_slider2 = new GCustomSlider(this, 8, 184, 304, 24, "blue18px");

  custom_slider2.setLimits(0.0, 0.0, 2000.0);

  custom_slider2.setNumberFormat(G4P.INTEGER, 0);

  custom_slider2.setOpaque(false);

  custom_slider2.addEventHandler(this, "custom_slider2_change1");

  label4 = new GLabel(this, 8, 224, 176, 32);

  label4.setText("Temperature [°C]");

  label4.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  label4.setOpaque(false);

  textfield4 = new GTextField(this, 184, 224, 128, 32, G4P.SCROLLBARS_NONE);

  textfield4.setText("25");

  textfield4.setOpaque(true);

  textfield4.addEventHandler(this, "textfield4_change1");

  custom_slider3 = new GCustomSlider(this, 8, 256, 304, 24, "blue18px");

  custom_slider3.setLimits(25.0, -20.0, 50.0);

  custom_slider3.setNumberFormat(G4P.INTEGER, 0);

  custom_slider3.setOpaque(false);

  custom_slider3.addEventHandler(this, "custom_slider3_change1");

  textfield5 = new GTextField(this, 184, 296, 128, 32, G4P.SCROLLBARS_NONE);

  textfield5.setText("0");

  textfield5.setOpaque(true);

  textfield5.addEventHandler(this, "textfield5_change1");

  label5 = new GLabel(this, 8, 296, 176, 32);

  label5.setText("Superheat [°C]");

  label5.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  label5.setOpaque(false);

  custom_slider4 = new GCustomSlider(this, 8, 328, 304, 24, "blue18px");

  custom_slider4.setLimits(0.0, -10.0, 200.0);

  custom_slider4.setNbrTicks(200);

  custom_slider4.setNumberFormat(G4P.INTEGER, 0);

  custom_slider4.setOpaque(false);

  custom_slider4.addEventHandler(this, "custom_slider4_change1");

  checkbox1 = new GCheckbox(this, 24, 392, 80, 16);

  checkbox1.setText("Helium He");

  checkbox1.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox1.setOpaque(false);

  checkbox1.addEventHandler(this, "checkbox1_clicked1");

  checkbox1.setSelected(true);

  checkbox2 = new GCheckbox(this, 24, 408, 80, 24);

  checkbox2.setText("Ballonium");

  checkbox2.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox2.setOpaque(false);

  checkbox2.addEventHandler(this, "checkbox2_clicked1");

  checkbox3 = new GCheckbox(this, 120, 392, 96, 16);

  checkbox3.setText("Hydrogen H2");

  checkbox3.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox3.setOpaque(false);

  checkbox3.addEventHandler(this, "checkbox3_clicked1");

  checkbox4 = new GCheckbox(this, 120, 408, 56, 24);

  checkbox4.setText("Air");

  checkbox4.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox4.setOpaque(false);

  checkbox4.addEventHandler(this, "checkbox4_clicked1");

  label6 = new GLabel(this, 8, 368, 160, 24);

  label6.setText("Lifting gas");

  label6.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  label6.setOpaque(false);

  checkbox5 = new GCheckbox(this, 224, 392, 72, 16);

  checkbox5.setText("Methan");

  checkbox5.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox5.setOpaque(false);

  checkbox5.addEventHandler(this, "checkbox5_clicked1");

  checkbox6 = new GCheckbox(this, 224, 408, 96, 24);

  checkbox6.setText("Nitrogen N2");

  checkbox6.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox6.setOpaque(false);

  checkbox6.addEventHandler(this, "checkbox6_clicked1");

  textarea1 = new GTextArea(this, 8, 432, 304, 104, G4P.SCROLLBARS_NONE);

  textarea1.setOpaque(true);

  textarea1.addEventHandler(this, "textarea1_change1");

  checkbox7 = new GCheckbox(this, 248, 16, 72, 32);

  checkbox7.setText("fix vs. Volume");

  checkbox7.setTextAlign(GAlign.LEFT, GAlign.MIDDLE);

  checkbox7.setOpaque(false);

  checkbox7.addEventHandler(this, "checkbox7_clicked1");

}

​

// Variable declarations 

// autogenerated do not edit

GTextField textfield1; 

GTextField textfield2; 

GLabel label1; 

GLabel label2; 

GCustomSlider custom_slider1; 

GLabel label3; 

GTextField textfield3; 

GCustomSlider custom_slider2; 

GLabel label4; 

GTextField textfield4; 

GCustomSlider custom_slider3; 

GTextField textfield5; 

GLabel label5; 

GCustomSlider custom_slider4; 

GCheckbox checkbox1; 

GCheckbox checkbox2; 

GCheckbox checkbox3; 

GCheckbox checkbox4; 

GLabel label6; 

GCheckbox checkbox5; 

GCheckbox checkbox6; 

GTextArea textarea1; 

GCheckbox checkbox7; 

​

​

​