Method drawVertices

examples/scenes/src/GeometryScene.java:117–163

(Canvas canvas)

    }

    public void drawVertices(Canvas canvas) {
        canvas.save();

        Point[] positions = new Point[] {
            new Point(0, 0), new Point(40, 0), new Point(20, 20), new Point(40, 20), new Point(0, 40), new Point(40, 40)
        };
        int[] colors = new int[] { 0xFFFF0000, 0xFF0000FF, 0xFFFFFF00, 0xFF00FFFF, 0xFF00FF00, 0xFFFF00FF,  };

        try (var paint = new Paint();
             var shader = Shader.makeLinearGradient( 0,  0, 40,  0, new int[] { 0xFF277da1, 0xFFffba08 });)
        {
            canvas.drawTriangles(positions, colors, paint);
            canvas.translate(50, 0);

            short[] indices = new short[] {
                    0, 1, 4
            };
            canvas.drawTriangles(positions, colors, null, indices, paint);
            canvas.translate(50, 0);

            canvas.drawTriangleStrip(positions, colors, paint);
            canvas.translate(50, 0);

            canvas.drawTriangleFan(positions, colors, paint);
            canvas.translate(50, 0);

            paint.setShader(shader);
            canvas.drawTriangles(positions, colors, paint);
            canvas.translate(50, 0);

            canvas.drawTriangleStrip(positions, colors, null, null, BlendMode.SRC_OVER, paint);
            canvas.translate(50, 0);

            colors = new int[] {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF};
            canvas.drawTriangleFan(positions, colors, paint);
            canvas.translate(50, 0);

            Point[] texCoords = new Point[] {
                new Point(0, 0), new Point(40, 0), new Point(20, 20), new Point(40, 40), new Point(0, 40), new Point(30, 30)
            };
            canvas.drawTriangles(positions, colors, texCoords, null, paint);
            canvas.translate(50, 0);            
        }        

        canvas.restore();
        canvas.translate(0, 50);
    }

    public void drawPatch(Canvas canvas) {
        canvas.save();