Examples of javax.media.j3d.PolygonAttributes

javax.media.j3d.PolygonAttributes
The PolygonAttributes object defines attributes for rendering polygon primitives. Polygon primitives include triangles, triangle strips, triangle fans, and quads. The polygon attributes that can be defined are:

Rasterization mode - defines how the polygon is drawn: as points, outlines, or filled.
- POLYGON_POINT - the polygon is rendered as points drawn at the vertices.
- POLYGON_LINE - the polygon is rendered as lines drawn between consecutive vertices.
- POLYGON_FILL - the polygon is rendered by filling the interior between the vertices. The default mode.
Face culling - defines which polygons are culled (discarded) before they are converted to screen coordinates.
- CULL_NONE - disables face culling.
- CULL_BACK - culls all back-facing polygons. The default.
- CULL_FRONT - culls all front-facing polygons.
Back-face normal flip - specifies whether vertex normals of back-facing polygons are flipped (negated) prior to lighting. The setting is either true, meaning to flip back-facing normals, or false. The default is false.

Offset - the depth values of all pixels generated by polygon rasterization can be offset by a value that is computed for that polygon. Two values are used to specify the offset:

Offset bias - the constant polygon offset that is added to the final device coordinate Z value of polygon primitives.

Offset factor - the factor to be multiplied by the slope of the polygon and then added to the final, device coordinate Z value of the polygon primitives.

        setTransform(new Transform3D(C.nullRot, new Vector3d(0,0,0.1), 1.0));


        if (bg != null) {
            app = new Appearance();
            app.setColoringAttributes(new ColoringAttributes(bg, ColoringAttributes.SHADE_FLAT));
            app.setPolygonAttributes(new PolygonAttributes(PolygonAttributes.POLYGON_FILL, PolygonAttributes.CULL_BACK, 10.0f));
            addChild(makeQuad(lower.x-0.5, lower.y-0.1, upper.x-lower.x+1, upper.y-lower.y+.6, -.1, app));
        }
    }

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    Appearance greenApp = new Appearance();
    setToMyDefaultAppearance(greenApp,new Color3f(0.0f,0.7f,0.0f));


    //The following lines enforce that objects with the
    //Appearance greenApp wil be displayed as wire frame models.
    PolygonAttributes polygAttr = new PolygonAttributes();
    polygAttr.setPolygonMode(PolygonAttributes.POLYGON_LINE);
    greenApp.setPolygonAttributes(polygAttr);






    //Radius of the cockpit.

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    }
  
  private static Appearance createMaterialAppearance(boolean bleu){


        Appearance materialAppear = new Appearance();
        PolygonAttributes polyAttrib = new PolygonAttributes();
        polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
        materialAppear.setPolygonAttributes(polyAttrib);


        if(bleu){
          Material material = new Material();
            material.setDiffuseColor(new Color3f(1.0f, 0.0f, 0.0f));

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    }
  
  public static Appearance createMaterialAppearance(){


        Appearance materialAppear = new Appearance();
        PolygonAttributes polyAttrib = new PolygonAttributes();
        polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
        materialAppear.setPolygonAttributes(polyAttrib);


        Material material = new Material();
        material.setDiffuseColor(new Color3f(0.2f, 0.2f, 0.2f));
        materialAppear.setMaterial(material);

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    }
  
  public static Appearance createWireFrameAppearance(){


        Appearance materialAppear = new Appearance();
        PolygonAttributes polyAttrib = new PolygonAttributes();
        polyAttrib.setPolygonMode(PolygonAttributes.POLYGON_LINE);
        materialAppear.setPolygonAttributes(polyAttrib);
        ColoringAttributes redColoring = new ColoringAttributes();
        redColoring.setColor(1.0f, 0.0f, 0.0f);
        materialAppear.setColoringAttributes(redColoring);

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    Appearance blackApp = new Appearance();
    setToMyDefaultAppearance(blackApp,new Color3f(0.0f,0.0f,0.0f));


    //The following lines change the display style of the Appearance blackApp
    //to wire frame instead of solid.
    PolygonAttributes polygAttr = new PolygonAttributes();
    polygAttr.setPolygonMode(PolygonAttributes.POLYGON_LINE);
    blackApp.setPolygonAttributes(polygAttr);

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            mode = PolygonAttributes.POLYGON_LINE;
        }


        // Default culls back facing polygons, which is weird.
        // We disable that here.
        _polygonAttributes = new PolygonAttributes(mode,
                PolygonAttributes.CULL_NONE, 0.0f);
        _appearance.setPolygonAttributes(_polygonAttributes);


        // Turn on antialiasing.
        LineAttributes lineAttributes = new LineAttributes(1.0f,

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        material.setSpecularColor(specularColor);
        appearance.setMaterial(material);
    }


    public static void setCullFace(Appearance appearance, int cullFace) {
        PolygonAttributes polygonAttributes = new PolygonAttributes();
        polygonAttributes.setCullFace(cullFace);
        if (cullFace == PolygonAttributes.CULL_NONE) {
            polygonAttributes.setBackFaceNormalFlip(true);
        }
        appearance.setPolygonAttributes(polygonAttributes);
    }

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    final LineAttributes lineAttr = new LineAttributes();
    lineAttr.setLineAntialiasingEnable(true);
    appear.setLineAttributes(lineAttr);


    final PolygonAttributes polyAttr = new PolygonAttributes();
    polyAttr.setPolygonMode(PolygonAttributes.POLYGON_FILL);
    appear.setPolygonAttributes(polyAttr);


    final Color3f orange = new Color3f(1f, 0.5f, 0f);


    final ColoringAttributes colorAttr = new ColoringAttributes();
    colorAttr.setColor(orange);
    colorAttr.setShadeModel(ColoringAttributes.NICEST);
    appear.setColoringAttributes(colorAttr);


    final Material material = new Material();
    material.setAmbientColor(orange);
    material.setDiffuseColor(orange);
    material.setSpecularColor(orange);
    material.setEmissiveColor(orange);
    appear.setMaterial(material);


    final Box box = new Box();
    box.setAppearance(appear);


    final Appearance appear2 = new Appearance();


    final PointAttributes pointAttr2 = new PointAttributes();
    pointAttr2.setPointAntialiasingEnable(true);
    appear2.setPointAttributes(pointAttr2);


    final LineAttributes lineAttr2 = new LineAttributes();
    lineAttr2.setLineAntialiasingEnable(true);
    appear2.setLineAttributes(lineAttr2);


    final PolygonAttributes polyAttr2 = new PolygonAttributes();
    polyAttr2.setPolygonMode(PolygonAttributes.POLYGON_LINE);
    appear2.setPolygonAttributes(polyAttr2);


    final ColoringAttributes colorAttr2 = new ColoringAttributes();
    colorAttr2.setColor(new Color3f(1f, 0.5f, 0f));
    colorAttr2.setShadeModel(ColoringAttributes.NICEST);

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    appearR.setRenderingAttributes(appear.getRenderingAttributes());
    final LineAttributes lineAttr2 = new LineAttributes();
    lineAttr2.setLineAntialiasingEnable(true);
    appearR.setLineAttributes(lineAttr2);


    final PolygonAttributes polyAttr2 = new PolygonAttributes();
    polyAttr2.setPolygonMode(PolygonAttributes.POLYGON_LINE);
    appearR.setPolygonAttributes(polyAttr2);


    this.rahmen.setAppearance(appearR);
  }

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