Fix clipping planes in EmulGL

jzy3d-core-awt/src/main/java/org/jzy3d/chart/controllers/mouse/camera/AWTCameraMouseController.java

@@ -47,8 +47,7 @@ public class AWTCameraMouseController extends AbstractCameraController
   MousePosition mousePosition = new MousePosition();
 
   MouseSelectionSettings selectionSettings = new MouseSelectionSettings();
-
-
+  
   public AWTCameraMouseController() {}
 
   public AWTCameraMouseController(Chart chart) {
@@ -154,6 +153,7 @@ public class AWTCameraMouseController extends AbstractCameraController
 
     // 2D mode
     else {
+      
       // stop displaying mouse position on roll over
       mousePosition = new MousePosition();
 
@@ -344,9 +344,10 @@ public class AWTCameraMouseController extends AbstractCameraController
       mouseSelection = new MouseSelection();
 
       // Crop and zoom
-      if (allowCrop)
-        getChart().getScene().getGraph().setClipBox(bounds, true, false);
-
+      if (allowCrop) {
+        boolean includeLimits = false; // to avoid inacurrate box scale
+        getChart().getScene().getGraph().setClipBox(bounds, includeLimits, false);
+      }
       view.setBoundsManual(bounds);
 
 

jzy3d-core/src/main/java/org/jzy3d/maths/Array.java

@@ -625,6 +625,13 @@ public class Array {
     System.out.println("");
   }
 
+  public static void print(boolean input[]) {
+    for (int i = 0; i < input.length; i++) {
+      System.out.print(input[i] + "|");
+    }
+    System.out.println("");
+  }
+
   public static void print(double input[][]) {
     for (int i = 0; i < input.length; i++) {
       for (int j = 0; j < input[i].length; j++) {
@@ -663,7 +670,12 @@ public class Array {
     System.out.print(info);
     print(input);
   }
-  
+
+  public static void print(String info, boolean input[]) {
+    System.out.print(info);
+    print(input);
+  }
+
   public static void print(String info, int input[]) {
     System.out.print(info);
     print(input);

jzy3d-core/src/main/java/org/jzy3d/painters/AbstractPainter.java

@@ -222,6 +222,20 @@ public abstract class AbstractPainter implements IPainter {
     glDisable_ClipPlane(4);
     glDisable_ClipPlane(5);
   }
+  
+  @Override
+  public boolean[] clipStatus() {
+    boolean[] status = new boolean[6];
+    
+    int[] v = {-1};
+    
+    for(int i=0; i<6; i++) {
+      glGetIntegerv(clipPlaneId(i), v, 0);
+      status[i] = (v[0]==1);
+    }
+    return status;
+  }
+
 
   /**
    * A convenient shortcut to invoke a clipping plane using an ID in [0;5] instead of the original

jzy3d-core/src/main/java/org/jzy3d/painters/IPainter.java

@@ -193,6 +193,9 @@ public interface IPainter {
   /** Disable all clipping planes */
   public void clipOff();
 
+  /** Indicates status of clipping planes (on/off) */
+  public boolean[] clipStatus();
+
   /**
    * A convenient shortcut to glColor4f which overrides the color's alpha channel
    */

jzy3d-core/src/main/java/org/jzy3d/plot3d/rendering/scene/Graph.java

@@ -2,6 +2,7 @@ package org.jzy3d.plot3d.rendering.scene;
 
 import java.util.ArrayList;
 import java.util.List;
+import org.jzy3d.maths.Array;
 import org.jzy3d.maths.BoundingBox3d;
 import org.jzy3d.painters.IPainter;
 import org.jzy3d.plot3d.primitives.Composite;
@@ -205,6 +206,8 @@ public class Graph {
       painter.clipOn();
     }
     
+    //Array.print("Clipping planes : ", painter.clipStatus());
+    
     // draw
     draw(painter, components, sort);
     

jzy3d-emul-gl-awt/src/main/java/org/jzy3d/painters/EmulGLPainter.java

@@ -983,7 +983,7 @@ public class EmulGLPainter extends AbstractPainter implements IPainter {
   
   @Override
   public void glClipPlane(int plane, double[] equation) {
-    gl.glClipPlane(GL.GL_CLIP_PLANE0, equation); 
+    gl.glClipPlane(plane, equation); 
   }
   
   @Override
@@ -1013,10 +1013,10 @@ public class EmulGLPainter extends AbstractPainter implements IPainter {
       case 5:
         return GL.GL_CLIP_PLANE5;
       default:
-        throw new IllegalArgumentException("Expect a plane ID in [0;5]");
+        throw new IllegalArgumentException("Expect a plane ID in [0;5], received " + id);
     }
   }
-
+  
   
   @Override
   public boolean gluUnProject(float winX, float winY, float winZ, float[] model, int model_offset,

jzy3d-jGL/jzy3d-jGL-awt/src/main/java/jgl/GL.java

@@ -1323,6 +1323,14 @@ public abstract class GL<ImageType, FontType> {
       case GL_MAX_CLIP_PLANES:
         params[0] = Context.MAX_CLIP_PLANES;
         break;
+      case GL_CLIP_PLANE0:
+      case GL_CLIP_PLANE1:
+      case GL_CLIP_PLANE2:
+      case GL_CLIP_PLANE3:
+      case GL_CLIP_PLANE4:
+      case GL_CLIP_PLANE5:
+        params[0] = Context.Transform.ClipEnable[pname - GL_CLIP_PLANE0]?1:0;
+        break;
       case GL_MAX_MODELVIEW_STACK_DEPTH:
       case GL_MAX_PROJECTION_STACK_DEPTH:
       case GL_MAX_TEXTURE_STACK_DEPTH: