I am working on GIS project.I want represent a line in different forms like railroad, airplane etc.
How can i acheive this
I know the standard forms like dashed, dotted line.My code is

bs = null;
bs = new BasicStroke(files[i].getSizeLineString(), files[i].getEndStyleLineString(), files[i].getJoinStyleLineString()/**,1.0f,new float[] {5},0*/);
g2.setStroke(bs);
//bs = null;
// bs = new BasicStroke(files[i].getSizeLineString(), files[i].getEndStyleLineString(), files[i].getJoinStyleLineString());

WGS_LineString[] lineString = files[i].getLineString();
for (int j = 0; j < lineString.length; j++) {
g2.setColor(files[i].getLineStringColor());
double[] x = lineString[j].getX();
double[] y = lineString[j].getY();
int[] x1 = new int[x.length];
int[] y1 = new int[y.length];
for (int k = 0; k < x.length; k++) {
x1[k] = (int) ((x[k] - deltaX) * zoomunit) + shiftUnit;
y1[k] = (int) ((deltaY - y[k]) * zoomunit) + shiftUnit;
}
if(Global.index1==0){

if(Global.getTrasperency()&& Global.FileWithTransparency.containsKey(files[i]))
{
int m=(Integer)Global.FileWithTransparency.get(files[i]);
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, m* 0.1f));
g2.drawPolyline(x1, y1, x1.length);
}
else
{
if(Global.isThematicMode() && files[i].isActive())
{
String value="";
if(Global.getThematicSubmode().equals("SingleField"))
value=(String)lineString[j].getRecordByAttribute(Global.getThematicAttribute());
else if(Global.getThematicSubmode().equals("MultiField"))
{
String key=Global.getThematicAttribute();
String []field1=new String[2];
if(key.contains("@@ "))
{
field1=key.split("@@ ");
value=((String)lineString[j].getRecordByAttribute(field1[0])).trim()+" , "+((String)lineString[j].getRecordByAttribute(field1[1])).trim();
}
else
value=(String) lineString[j].getRecordByAttribute(key);
}
else
value="FID"+Integer.toString(i).trim()+"."+Integer.toString(j).trim();
Color drawline=(Color)Global.thematicHash.get(value);
g2.setColor(drawline);
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 10* 0.1f));
g2.drawPolyline(x1, y1, x1.length);
value="";
}
else
{
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 10* 0.1f));
g2.drawPolyline(x1, y1, x1.length);
}
}
}