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* Formatting and minor changes in Curve, Cylinder, PQTorus

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9303 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
3.0
Sha..rd 13 years ago
parent 0aa5efb028
commit f6b5335976
3 changed files with 124 additions and 119 deletions
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  1. 214
      engine/src/core/com/jme3/scene/shape/Curve.java
  2. 2
      engine/src/core/com/jme3/scene/shape/Cylinder.java
  3. 27
      engine/src/core/com/jme3/scene/shape/PQTorus.java

214
engine/src/core/com/jme3/scene/shape/Curve.java
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@ -39,11 +39,12 @@ import java.util.Iterator;
import java.util.List;
/**
* A <code>Curve</code> is a visual, line-based representation of a {@link Spline}.
* The underlying Spline will be sampled N times where N is the number of
* segments as specified in the constructor. Each segment will represent
* one line in the generated mesh.
*
* A
* <code>Curve</code> is a visual, line-based representation of a {@link Spline}.
* The underlying Spline will be sampled N times where N is the number of
* segments as specified in the constructor. Each segment will represent one
* line in the generated mesh.
*
* @author Nehon
*/
public class Curve extends Mesh {
@ -54,13 +55,12 @@ public class Curve extends Mesh {
/**
* Serialization only. Do not use.
*/
public Curve(){
public Curve() {
}
/**
* Create a curve mesh.
* Use a CatmullRom spline model that does not cycle.
*
* Create a curve mesh. Use a CatmullRom spline model that does not cycle.
*
* @param controlPoints the control points to use to create this curve
* @param nbSubSegments the number of subsegments between the control points
*/
@ -70,7 +70,7 @@ public class Curve extends Mesh {
/**
* Create a curve mesh from a Spline
*
*
* @param spline the spline to use
* @param nbSubSegments the number of subsegments between the control points
*/
@ -79,17 +79,17 @@ public class Curve extends Mesh {
this.spline = spline;
switch (spline.getType()) {
case CatmullRom:
this.createCatmullRomMesh(nbSubSegments);
this.createCatmullRomMesh(nbSubSegments);
break;
case Bezier:
this.createBezierMesh(nbSubSegments);
break;
this.createBezierMesh(nbSubSegments);
break;
case Nurb:
this.createNurbMesh(nbSubSegments);
break;
this.createNurbMesh(nbSubSegments);
break;
case Linear:
default:
this.createLinearMesh();
this.createLinearMesh();
break;
}
}
@ -122,7 +122,7 @@ public class Curve extends Mesh {
}
i = 0;
int k = 0;
int k;
for (int j = 0; j < (spline.getControlPoints().size() - 1) * nbSubSegments; j++) {
k = j;
indices[i] = (short) k;
@ -140,100 +140,101 @@ public class Curve extends Mesh {
}
/**
* This method creates the Bezier path for this curve.
*
* @param nbSubSegments
* amount of subsegments between position control points
*/
private void createBezierMesh(int nbSubSegments) {
if(nbSubSegments==0) {
nbSubSegments = 1;
}
int centerPointsAmount = (spline.getControlPoints().size() + 2) / 3;
//calculating vertices
float[] array = new float[((centerPointsAmount - 1) * nbSubSegments + 1) * 3];
int currentControlPoint = 0;
List<Vector3f> controlPoints = spline.getControlPoints();
int lineIndex = 0;
for (int i = 0; i < centerPointsAmount - 1; ++i) {
Vector3f vector3f = controlPoints.get(currentControlPoint);
array[lineIndex++] = vector3f.x;
array[lineIndex++] = vector3f.y;
array[lineIndex++] = vector3f.z;
for (int j = 1; j < nbSubSegments; ++j) {
spline.interpolate((float) j / nbSubSegments, currentControlPoint, temp);
array[lineIndex++] = temp.getX();
array[lineIndex++] = temp.getY();
array[lineIndex++] = temp.getZ();
}
currentControlPoint += 3;
}
Vector3f vector3f = controlPoints.get(currentControlPoint);
array[lineIndex++] = vector3f.x;
array[lineIndex++] = vector3f.y;
array[lineIndex++] = vector3f.z;
* This method creates the Bezier path for this curve.
*
* @param nbSubSegments amount of subsegments between position control
* points
*/
private void createBezierMesh(int nbSubSegments) {
if (nbSubSegments == 0) {
nbSubSegments = 1;
}
int centerPointsAmount = (spline.getControlPoints().size() + 2) / 3;
//calculating vertices
float[] array = new float[((centerPointsAmount - 1) * nbSubSegments + 1) * 3];
int currentControlPoint = 0;
List<Vector3f> controlPoints = spline.getControlPoints();
int lineIndex = 0;
for (int i = 0; i < centerPointsAmount - 1; ++i) {
Vector3f vector3f = controlPoints.get(currentControlPoint);
array[lineIndex++] = vector3f.x;
array[lineIndex++] = vector3f.y;
array[lineIndex++] = vector3f.z;
for (int j = 1; j < nbSubSegments; ++j) {
spline.interpolate((float) j / nbSubSegments, currentControlPoint, temp);
array[lineIndex++] = temp.getX();
array[lineIndex++] = temp.getY();
array[lineIndex++] = temp.getZ();
}
currentControlPoint += 3;
}
Vector3f vector3f = controlPoints.get(currentControlPoint);
array[lineIndex++] = vector3f.x;
array[lineIndex++] = vector3f.y;
array[lineIndex++] = vector3f.z;
//calculating indexes
int i = 0, k;
short[] indices = new short[(centerPointsAmount - 1) * nbSubSegments << 1];
for (int j = 0; j < (centerPointsAmount - 1) * nbSubSegments; ++j) {
k = j;
indices[i++] = (short) k;
++k;
indices[i++] = (short) k;
}
this.setMode(Mesh.Mode.Lines);
this.setBuffer(VertexBuffer.Type.Position, 3, array);
this.setBuffer(VertexBuffer.Type.Index, 2, indices);
this.updateBound();
this.updateCounts();
}
/**
* This method creates the Nurb path for this curve.
*
* @param nbSubSegments amount of subsegments between position control
* points
*/
private void createNurbMesh(int nbSubSegments) {
float minKnot = spline.getMinNurbKnot();
float maxKnot = spline.getMaxNurbKnot();
float deltaU = (maxKnot - minKnot) / nbSubSegments;
//calculating indexes
int i = 0, k = 0;
short[] indices = new short[(centerPointsAmount - 1) * nbSubSegments << 1];
for (int j = 0; j < (centerPointsAmount - 1) * nbSubSegments; ++j) {
k = j;
indices[i++] = (short) k;
++k;
indices[i++] = (short) k;
}
float[] array = new float[(nbSubSegments + 1) * 3];
this.setMode(Mesh.Mode.Lines);
this.setBuffer(VertexBuffer.Type.Position, 3, array);
this.setBuffer(VertexBuffer.Type.Index, 2, indices);
this.updateBound();
this.updateCounts();
}
/**
* This method creates the Nurb path for this curve.
* @param nbSubSegments
* amount of subsegments between position control points
*/
private void createNurbMesh(int nbSubSegments) {
float minKnot = spline.getMinNurbKnot();
float maxKnot = spline.getMaxNurbKnot();
float deltaU = (maxKnot - minKnot)/nbSubSegments;
float[] array = new float[(nbSubSegments + 1) * 3];
float u = minKnot;
Vector3f interpolationResult = new Vector3f();
for(int i=0;i<array.length;i+=3) {
spline.interpolate(u, 0, interpolationResult);
array[i] = interpolationResult.x;
array[i + 1] = interpolationResult.y;
array[i + 2] = interpolationResult.z;
u += deltaU;
}
//calculating indexes
int i = 0;
short[] indices = new short[nbSubSegments << 1];
for (int j = 0; j < nbSubSegments; ++j) {
indices[i++] = (short) j;
indices[i++] = (short) (j + 1);
}
float u = minKnot;
Vector3f interpolationResult = new Vector3f();
for (int i = 0; i < array.length; i += 3) {
spline.interpolate(u, 0, interpolationResult);
array[i] = interpolationResult.x;
array[i + 1] = interpolationResult.y;
array[i + 2] = interpolationResult.z;
u += deltaU;
}
//calculating indexes
int i = 0;
short[] indices = new short[nbSubSegments << 1];
for (int j = 0; j < nbSubSegments; ++j) {
indices[i++] = (short) j;
indices[i++] = (short) (j + 1);
}
this.setMode(Mesh.Mode.Lines);
this.setBuffer(VertexBuffer.Type.Position, 3, array);
this.setBuffer(VertexBuffer.Type.Index, 2, indices);
this.updateBound();
this.updateCounts();
}
this.setMode(Mesh.Mode.Lines);
this.setBuffer(VertexBuffer.Type.Position, 3, array);
this.setBuffer(VertexBuffer.Type.Index, 2, indices);
this.updateBound();
this.updateCounts();
}
private void createLinearMesh() {
float[] array = new float[spline.getControlPoints().size() * 3];
short[] indices = new short[(spline.getControlPoints().size() - 1) * 2];
int i = 0;
int cpt = 0;
int k = 0;
int k;
int j = 0;
for (Iterator<Vector3f> it = spline.getControlPoints().iterator(); it.hasNext();) {
Vector3f vector3f = it.next();
@ -260,12 +261,13 @@ public class Curve extends Mesh {
this.updateBound();
this.updateCounts();
}
/**
* This method returns the length of the curve.
*
* @return the length of the curve
*/
public float getLength() {
return spline.getTotalLength();
return spline.getTotalLength();
}
}

2
engine/src/core/com/jme3/scene/shape/Cylinder.java
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@ -392,6 +392,7 @@ public class Cylinder extends Mesh {
updateBound();
}
@Override
public void read(JmeImporter e) throws IOException {
super.read(e);
InputCapsule capsule = e.getCapsule(this);
@ -404,6 +405,7 @@ public class Cylinder extends Mesh {
inverted = capsule.readBoolean("inverted", false);
}
@Override
public void write(JmeExporter e) throws IOException {
super.write(e);
OutputCapsule capsule = e.getCapsule(this);

27
engine/src/core/com/jme3/scene/shape/PQTorus.java
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@ -105,17 +105,6 @@ public class PQTorus extends Mesh {
return width;
}
public void read(JmeImporter e) throws IOException {
super.read(e);
InputCapsule capsule = e.getCapsule(this);
p = capsule.readFloat("p", 0);
q = capsule.readFloat("q", 0);
radius = capsule.readFloat("radius", 0);
width = capsule.readFloat("width", 0);
steps = capsule.readInt("steps", 0);
radialSamples = capsule.readInt("radialSamples", 0);
}
/**
* Rebuilds this torus based on a new set of parameters.
*
@ -145,9 +134,9 @@ public class PQTorus extends Mesh {
FloatBuffer fnb = createVector3Buffer(vertCount);
FloatBuffer ftb = createVector2Buffer(vertCount);
Vector3f pointB = new Vector3f(), T = new Vector3f(), N = new Vector3f(), B = new Vector3f();
Vector3f pointB, T, N, B;
Vector3f tempNorm = new Vector3f();
float r, x, y, z, theta = 0.0f, beta = 0.0f;
float r, x, y, z, theta = 0.0f, beta;
int nvertex = 0;
// Move along the length of the pq torus
@ -224,6 +213,18 @@ public class PQTorus extends Mesh {
setBuffer(Type.Index, 3, sib);
}
@Override
public void read(JmeImporter e) throws IOException {
super.read(e);
InputCapsule capsule = e.getCapsule(this);
p = capsule.readFloat("p", 0);
q = capsule.readFloat("q", 0);
radius = capsule.readFloat("radius", 0);
width = capsule.readFloat("width", 0);
steps = capsule.readInt("steps", 0);
radialSamples = capsule.readInt("radialSamples", 0);
}
@Override
public void write(JmeExporter e) throws IOException {
super.write(e);

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