本文介绍了JavaFX应用程序中出现意外的ArrayIndexOutOfBoundsException，请参考无数组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有以下代码：
public void setContent(Importer3D importer) {
if (DEBUG) {
System.out.println("Initialization of Mesh's arrays");
}
coords = importer.getCoords();
texCoords = importer.getTexCoords();
faces = importer.getFaces();
if (DEBUG) {
System.out.println("Applying Mesh's arrays");
}
mesh = new TriangleMesh();
mesh.getPoints().setAll(coords);
mesh.getTexCoords().setAll(texCoords);
mesh.getFaces().setAll(faces);
if (DEBUG) {
System.out.println("Initialization of the material");
}
initMaterial();
if (DEBUG) {
System.out.println("Setting the MeshView");
}
meshView.setMesh(mesh);
meshView.setMaterial(material);
meshView.setDrawMode(DrawMode.FILL);
if (DEBUG) {
System.out.println("Adding to 3D scene");
}
root3d.getChildren().clear();
root3d.getChildren().add(meshView);
if (DEBUG) {
System.out.println("3D model is ready!");
}
}
Imporeter3D类部分：
The Imporeter3D class part:
private void load(File file) {
stlLoader = new STLLoader(file);
}
public float[] getCoords() {
return stlLoader.getCoords();
}
public float[] getTexCoords() {
return stlLoader.getTexCoords();
}
public int[] getFaces() {
return stlLoader.getFaces();
}
STLLoader：
The STLLoader:
public class STLLoader{
public STLLoader(File file) {
stlFile = new STLFile(file);
loadManager = stlFile.loadManager;
pointsArray = new PointsArray(stlFile);
texCoordsArray = new TexCoordsArray();
}
public float[] getCoords() {
return pointsArray.getPoints();
}
public float[] getTexCoords() {
return texCoordsArray.getTexCoords();
}
public int[] getFaces() {
return pointsArray.getFaces();
}
private STLFile stlFile;
private PointsArray pointsArray;
private TexCoordsArray texCoordsArray;
private FacesArray facesArray;
public SimpleBooleanProperty finished = new SimpleBooleanProperty(false);
public LoadManager loadManager;}
PointsArray文件：
PointsArray file:
public class PointsArray {
public PointsArray(STLFile stlFile) {
this.stlFile = stlFile;
initPoints();
}
private void initPoints() {
ArrayList<Double> pointsList = stlFile.getPoints();
ArrayList<Double> uPointsList = new ArrayList<>();
faces = new int[pointsList.size()*2];
int n = 0;
for (Double d : pointsList) {
if (uPointsList.indexOf(d) == -1) {
uPointsList.add(d);
}
faces[n] = uPointsList.indexOf(d);
faces[++n] = 0;
n++;
}
int i = 0;
points = new float[uPointsList.size()];
for (Double d : uPointsList) {
points[i] = d.floatValue();
i++;
}
}
public float[] getPoints() {
return points;
}
public int[] getFaces() {
return faces;
}
private float[] points;
private int[] faces;
private STLFile stlFile;
public static boolean DEBUG = true;
}
和STLFile： p>
And STLFile:
ArrayList<Double> coords = new ArrayList<>();
double temp;
private void readV(STLParser parser) {
for (int n = 0; n < 3; n++) {
if(!(parser.ttype==STLParser.TT_WORD && parser.sval.equals("vertex"))) {
System.err.println("Format Error:expecting 'vertex' on line " + parser.lineno());
} else {
if (parser.getNumber()) {
temp = parser.nval;
coords.add(temp);
if(DEBUG) {
System.out.println("Vertex:");
System.out.print("X=" + temp + " ");
}
if (parser.getNumber()) {
temp = parser.nval;
coords.add(temp);
if(DEBUG) {
System.out.print("Y=" + temp + " ");
}
if (parser.getNumber()) {
temp = parser.nval;
coords.add(temp);
if(DEBUG) {
System.out.println("Z=" + temp + " ");
}
readEOL(parser);
} else System.err.println("Format Error: expecting coordinate on line " + parser.lineno());
} else System.err.println("Format Error: expecting coordinate on line " + parser.lineno());
} else System.err.println("Format Error: expecting coordinate on line " + parser.lineno());
}
if (n < 2) {
try {
parser.nextToken();
} catch (IOException e) {
System.err.println("IO Error on line " + parser.lineno() + ": " + e.getMessage());
}
}
}
}
public ArrayList<Double> getPoints() {
return coords;
}
由于所有这些代码，我希望得到3d模型MeshView。但是目前的结果是非常奇怪的：一切正常，在 DEBUG 模式我得到 3d模型准备好了从 setContent（），然后意外 ArrayIndexOutOfBoundsException ：
As a result of all of this code, I expected to get 3d model in MeshView. But the present result is very strange: everything works and in DEBUG mode I get 3d model is ready! from setContent(), and then unexpected ArrayIndexOutOfBoundsException:
File readed
Initialization of Mesh's arrays
Applying Mesh's arrays
Initialization of the material
Setting the MeshView
Adding to 3D scene
3D model is ready!
java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 32252
at com.sun.javafx.collections.ObservableFloatArrayImpl.rangeCheck(ObservableFloatArrayImpl.java:276)
at com.sun.javafx.collections.ObservableFloatArrayImpl.get(ObservableFloatArrayImpl.java:184)
at javafx.scene.shape.TriangleMesh.computeBounds(TriangleMesh.java:262)
at javafx.scene.shape.MeshView.impl_computeGeomBounds(MeshView.java:151)
at javafx.scene.Node.updateGeomBounds(Node.java:3497)
at javafx.scene.Node.getGeomBounds(Node.java:3450)
at javafx.scene.Node.getLocalBounds(Node.java:3432)
at javafx.scene.Node.updateTxBounds(Node.java:3510)
at javafx.scene.Node.getTransformedBounds(Node.java:3350)
at javafx.scene.Node.updateBounds(Node.java:516)
at javafx.scene.Parent.updateBounds(Parent.java:1668)
at javafx.scene.SubScene.updateBounds(SubScene.java:556)
at javafx.scene.Parent.updateBounds(Parent.java:1668)
at javafx.scene.Parent.updateBounds(Parent.java:1668)
at javafx.scene.Parent.updateBounds(Parent.java:1668)
at javafx.scene.Parent.updateBounds(Parent.java:1668)
at javafx.scene.Parent.updateBounds(Parent.java:1668)
at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2309)
at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:329)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:479)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:459)
at com.sun.javafx.tk.quantum.QuantumToolkit$13.run(QuantumToolkit.java:326)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:101)
at java.lang.Thread.run(Thread.java:724)
Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 32252
at com.sun.javafx.collections.ObservableFloatArrayImpl.rangeCheck(ObservableFloatArrayImpl.java:276)
at com.sun.javafx.collections.ObservableFloatArrayImpl.get(ObservableFloatArrayImpl.java:184)
陌生人的事情是，这个堆栈在我关闭程序之前不会停止。而且它不指向我的任何阵列。这是什么？为什么会这样呢？
The stranger thing is that this stack doesn't stop until I close the program. And moreover it doesn't point to any my array. What is this? And why does it happen?
推荐答案
TriangleMesh将此数组视为点坐标（x，y，z，因为它是3D），因此总数组长度应为 cords.length％3 == 0 。
TriangleMesh treats this array as point coordinates (x,y,z since it is 3D), so total array length should be cords.length % 3 == 0.
这篇关于JavaFX应用程序中出现意外的ArrayIndexOutOfBoundsException，请参考无数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！