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