fex.java

用java做的平面珩架结构有限元分析软件。 基本性能如下：结点数<500,单元数<1000

		repaint();
		
		
	}
	return;
}
/**
 * Comment
 */
public void button51_ActionEvents() {
	bNodeManul=false;
	bUnitManul=false;
	if(UnitNum>0)
	{
		
		String id=(ivjChoice11.getSelectedItem());
		Integer I=new Integer(id);		
		delunit(I.intValue());
		if(I.intValue()>1)
		unitselected(I.intValue()-1);
		else unitselected(1);
		repaint();
		
		
	}
	return;
}
/**
 * Comment
 */
public void button6_ActionEvents() {
	bNodeManul=false;
	bUnitManul=false;
	return;
}
/**
 * Comment
 */
public void button7_ActionEvents() {
	bNodeManul=false;
	bUnitManul=false;
	return;
}
/**
 * Comment
 */
public void button8_ActionEvents() {
	bNodeManul=false;
	bUnitManul=false;
	Integer I=new Integer(ivjChoice1.getSelectedItem());
	int i=I.intValue();
	nodes[i].X=(Integer.valueOf(ivjTextField1.getText())).intValue();
	nodes[i].Y=(Integer.valueOf(ivjTextField2.getText())).intValue();
	nodes[i].load.X=(Integer.valueOf(ivjTextField12.getText())).intValue();
	nodes[i].load.Y=(Integer.valueOf(ivjTextField22.getText())).intValue();
	repaint();
	for(int j=1;j<=UnitNum;j++)
		register(units[j],j);
	for(int j=1;j<=NodeNum;j++)
		register(nodes[j],j);
	return;
}
/**
 * Comment
 */
public void button9_ActionEvents() {
	bNodeManul=false;
	bUnitManul=false;
	Integer I=new Integer(ivjChoice11.getSelectedItem());
	int i=I.intValue();
	int Node1=(Integer.valueOf(ivjChoice12.getSelectedItem())).intValue();
	int Node2=(Integer.valueOf(ivjChoice13.getSelectedItem())).intValue();
	int A=(Integer.valueOf(ivjTextField3.getText())).intValue();
	int E=(Integer.valueOf(ivjTextField4.getText())).intValue();
	if(Node1!=Node2)
	{
		units[i].Node1=Node1;
		units[i].Node2=Node2;
	}
	if(A!=0)units[i].A=A;
	if(E!=0)units[i].E=E;
	repaint();	
	return;
}
/**
 * Insert the method's description here.
 * Creation date: (99-5-17 12:21:08)
 */
public void calculate() {	
	int n=2*NodeNum;
	double P[]=new double[n];
	double AK[][]=new double[n][n];
	double AKE[][]=new double[2][2];
	double AKEE[][]=new double[4][4];
	double T[][]=new double[2][4];
	int node[]=new int[2];
	double s;
	double c;
	int xx,yy;	
	for(int i=1;i<=UnitNum;i++)
	{
		
		xx=nodes[units[i].Node1].X-nodes[units[i].Node2].X;
		yy=nodes[units[i].Node1].Y-nodes[units[i].Node2].Y;
		s=Math.sqrt(xx*xx+yy*yy);
		c=units[i].A*units[i].E/s;
		AKE[0][0]=c;
		AKE[1][1]=c;
		AKE[0][1]=-c;
		AKE[1][0]=-c;
		c=xx/s;
		T[0][0]=c;
		T[1][2]=c;
		c=yy/s;
		T[0][1]=c;
		T[1][3]=c;
		double tkt[][]=matmult(2,2,4,AKE,T);
		//matmult(2,2,4,AKE,T);
		double tt[][]=matt(2,4,T);
		AKEE=matmult(4,2,4,tt,tkt);
		node[0]=units[i].Node1;
		node[1]=units[i].Node2;
		for(int ii=0;ii<4;ii++)
		{
			int a=(node[ii/2]-1)*2+ii%2;
			for(int jj=0;jj<4;jj++)
			{			
				int b=(node[jj/2]-1)*2+jj%2;
				AK[a][b]+=AKEE[ii][jj];
			}
		}
		
	}
	for(int i=0;i<n;i+=2)
	{
		P[i]=nodes[i/2+1].load.X;
		if(nodes[i/2+1].band.X)AK[i][i]=Double.MAX_VALUE;
	}
	for(int i=1;i<n;i+=2)
	{
		P[i]=nodes[i/2+1].load.Y;
		if(nodes[i/2+1].band.Y)AK[i][i]=Double.MAX_VALUE;
	}
	
	AK=lu(AK);
	
	for(int i=0;i<n;i++)
	{
		for(int j=0;j<=i-1;j++)
		P[i]-=AK[i][j]*AK[j][j]*P[j];
		P[i]=P[i]/AK[i][i];
	}
	for(int j=n-1;j>=0;j--)
	{
		
		for(int i=j+1;i<n;i++)
		P[j]-=AK[i][j]*P[i];
	}
	for(int i=0;i<n;i+=2)
	nodes[i/2+1].U=P[i];
	for(int i=1;i<n;i+=2)
	nodes[i/2+1].V=P[i] ;
	/*
	ivjTextArea1.append("\n			计算总刚\n");//Now computing AK;
	for(int i=0;i<n;i++)
	for(int j=0;j<i+1;j++)
	ivjTextArea1.append("AK"+"("+(i+1)+","+(j+1)+")"+"="+AK[i][j]+"\n");

	
	if(AK==null)ivjTextArea1.append("结构非静定");
	else
	{
		ivjTextArea1.append("\n			进行LU分解\n");//Now computing LU of AK;
		for(int i=0;i<n;i++)
		for(int j=0;j<i+1;j++)
		ivjTextArea1.append("LU"+"("+(i+1)+","+(1+j)+")"+"="+AK[i][j]+"\n");
	}
	//ivjTextArea1.append("=====================================\n");*/
	ivjTextArea1.append("运算成功\n");
	ivjPanel9.setVisible(true);
	return;
}
/**
 * Comment
 */
public void checkbox1_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	nodes[currentNode].band.X=ivjCheckbox1.getState();
	repaint();
	return;
}
/**
 * Comment
 */
public void checkbox2_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	nodes[currentNode].band.Y=ivjCheckbox2.getState();
	repaint();
	return;
}
/**
 * Comment
 */
public void checkbox3_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	if(ivjCheckbox3.getState())bGrid=true;
	else bGrid=false;
	repaint();
	return;
}
/**
 * Comment
 */
public void checkbox4_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	if(ivjCheckbox4.getState())bally=true;
	else bally=false;
	//repaint();
	return;
}
/**
 * Comment
 */
public void choice1_ItemStateChanged(java.awt.event.ItemEvent itemEvent)  
{
	bNodeManul=false;
	bUnitManul=false;
	Integer I=new Integer(ivjChoice1.getSelectedItem());
	int i=I.intValue();
	nodeselected(i);
	repaint();
	return;
}
/**
 * Comment
 */
public void choice11_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	bNodeManul=false;
	bUnitManul=false;
	Integer I=new Integer(ivjChoice11.getSelectedItem());
	int i=I.intValue();
	unitselected(i);
	repaint();
	return;
}
/**
 * Comment
 */
public void choice111_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	Integer I=new Integer(ivjChoice111.getSelectedItem());
	int i=I.intValue();
	unitselected(i);
	repaint();
	return;
}
/**
 * Comment
 */
public void choice14_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	
	Integer I=new Integer(ivjChoice14.getSelectedItem());
	int i=I.intValue();
	nodeselected(i);
	return;
}
/**
 * Comment
 */
public void choice3_ItemStateChanged(java.awt.event.ItemEvent itemEvent) {
	
	Integer I=new Integer(ivjChoice3.getSelectedItem());
	int i=I.intValue();
	coif=100*i;
	repaint();
	return;
}
/**
 * connEtoC1:  (Button1.action. --> FEX.button1_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC1() {
	try {
		// user code begin {1}
		// user code end
		this.button1_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC10:  (FEX.mouse.mouseClicked(java.awt.event.MouseEvent) --> FEX.fEX_MouseClicked(Ljava.awt.event.MouseEvent;)V)
 * @param arg1 java.awt.event.MouseEvent
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC10(java.awt.event.MouseEvent arg1) {
	try {
		// user code begin {1}
		// user code end
		this.fEX_MouseClicked(arg1);
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC11:  (Checkbox1.item.itemStateChanged(java.awt.event.ItemEvent) --> FEX.checkbox1_ItemStateChanged(Ljava.awt.event.ItemEvent;)V)
 * @param arg1 java.awt.event.ItemEvent
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC11(java.awt.event.ItemEvent arg1) {
	try {
		// user code begin {1}
		// user code end
		this.checkbox1_ItemStateChanged(arg1);
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC12:  (Checkbox2.item.itemStateChanged(java.awt.event.ItemEvent) --> FEX.checkbox2_ItemStateChanged(Ljava.awt.event.ItemEvent;)V)
 * @param arg1 java.awt.event.ItemEvent
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC12(java.awt.event.ItemEvent arg1) {
	try {
		// user code begin {1}
		// user code end
		this.checkbox2_ItemStateChanged(arg1);
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC13:  (Button15.action. --> FEX.button15_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC13() {
	try {
		// user code begin {1}
		// user code end
		this.button15_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC14:  (Button16.action. --> FEX.button16_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC14() {
	try {
		// user code begin {1}
		// user code end
		this.button16_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC15:  (FEX.mouseMotion.mouseMoved(java.awt.event.MouseEvent) --> FEX.fEX_MouseMoved(Ljava.awt.event.MouseEvent;)V)
 * @param arg1 java.awt.event.MouseEvent
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC15(java.awt.event.MouseEvent arg1) {
	try {
		// user code begin {1}
		// user code end
		this.fEX_MouseMoved(arg1);
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC16:  (Choice11.item.itemStateChanged(java.awt.event.ItemEvent) --> FEX.choice11_ItemStateChanged(Ljava.awt.event.ItemEvent;)V)
 * @param arg1 java.awt.event.ItemEvent
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC16(java.awt.event.ItemEvent arg1) {
	try {
		// user code begin {1}
		// user code end
		this.choice11_ItemStateChanged(arg1);
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC17:  (Button51.action. --> FEX.button51_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC17() {
	try {
		// user code begin {1}
		// user code end
		this.button51_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC18:  (Button9.action. --> FEX.button9_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC18() {
	try {
		// user code begin {1}
		// user code end
		this.button9_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC19:  (Button7.action. --> FEX.button7_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC19() {
	try {
		// user code begin {1}
		// user code end
		this.button7_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC2:  (Button2.action. --> FEX.button2_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC2() {
	try {
		// user code begin {1}
		// user code end
		this.button2_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC20:  (Button6.action. --> FEX.button6_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC20() {
	try {
		// user code begin {1}
		// user code end
		this.button6_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC21:  (Button10.action. --> FEX.button10_ActionEvents()V)
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private void connEtoC21() {
	try {
		// user code begin {1}
		// user code end
		this.button10_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**