2016-03-04 143 views
1

我试图使用jzy3d包创建曲面图。这里是我的代码:jzy3d更改颜色映射

int stepsX = 6; 
Range rX = new Range(1,6); 
int stepsY = 7; 
Range rY = new Range(0,6); 

Mapper mapper = new Mapper(){ 
    @Override 
    public double f(double x, double y) { 
     return //My function to get Z value; 
    } 
}; 

// Create a surface drawing that function 
org.jzy3d.plot3d.primitives.Shape surface = Builder.buildOrthonormal(new OrthonormalGrid(rX, stepsX, rY, stepsY), mapper); 
surface.setColorMapper(new ColorMapper(new ColorMapRainbow(), surface.getBounds().getZmin(), surface.getBounds().getZmax(), new org.jzy3d.colors.Color(1, 1, 1, .5f))); 
surface.setFaceDisplayed(true); 
surface.setWireframeDisplayed(false); 
//surface.setWireframeColor(org.jzy3d.colors.Color.GRAY); 

// Create a chart and add the surface 
org.jzy3d.chart.Chart chart = new org.jzy3d.chart.Chart(Quality.Advanced,"swing"); 
chart.getScene().getGraph().add(surface); 

JPanel p = new JPanel(new BorderLayout()); 
p.add((JPanel)chart.getCanvas(),BorderLayout.CENTER); 

用下面的代码我设置默认颜色映射(蓝色较低值,红色为更高)。

surface.setColorMapper(new ColorMapper(new ColorMapRainbow(), surface.getBounds().getZmin(), surface.getBounds().getZmax(), new org.jzy3d.colors.Color(1, 1, 1, .5f))); 

有什么方法可以颠倒颜色映射吗?即红色表示较低值,蓝色/绿色表示较高值。

回答

1

解决不当。

我所使用的方法setDirection(false)ColorMapRainbow

ColorMapRainbow colorScale = new ColorMapRainbow(); 
colorScale.setDirection(false); 
surface.setColorMapper(new ColorMapper(colorScale, surface.getBounds().getZmin(), surface.getBounds().getZmax())); 

的方法反转关联到每个值的默认颜色,使得蓝色来为更高的值,以及对于红色降低。