Modelica web颜色

Question

我认为将某些颜色定义为常量可能比较方便，以便稍后在Modelica颜色注释中使用。由于web颜色似乎是一个公认的标准，我将所有这些颜色复制到一个由常量数组组成的包中：

• https://en.wikipedia.org/wiki/Web_colors
• https://gist.github.com/thorade/a1298571938231ef90d3bedf6b514967

但是我似乎不能按预期使用它们，下面的示例失败了。如果我在同一个类中定义常量，但如果导入它，它似乎是有效的。我是做错了什么，还是我所使用的工具的限制？

within ;
package Modelica_Colors
  type RealColor = Modelica.Icons.TypeReal[3] (each min=0, each max=255);
  package BasicColors
    final constant RealColor Aqua={0,255,255};
    final constant RealColor Black={0,0,0};
    final constant RealColor Blue={0,0,255};
    final constant RealColor Fuchsia={255,0,255};
    final constant RealColor Gray={128,128,128};
    final constant RealColor Grey={128,128,128};
    final constant RealColor Green={0,128,0};
    final constant RealColor Lime={0,255,0};
    final constant RealColor Maroon={128,0,0};
    final constant RealColor Navy={0,0,128};
    final constant RealColor Olive={128,128,0};
    final constant RealColor Purple={128,0,128};
    final constant RealColor Red={255,0,0};
    final constant RealColor Silver={192,192,192};
    final constant RealColor Teal={0,128,128};
    final constant RealColor White={255,255,255};
    final constant RealColor Yellow={255,255,0};
  end BasicColors;

  package Colors
    final constant RealColor Crimson={220,20,60};
    final constant RealColor Cyan={0,255,255};
    final constant RealColor DarkBlue={0,0,139};
    final constant RealColor DarkCyan={0,139,139};
    final constant RealColor OliveDrab={107,142,35};
    final constant RealColor Orange={255,165,0};
    final constant RealColor OrangeRed={255,69,0};
    final constant RealColor Orchid={218,112,214};
    final constant RealColor PaleGoldenRod={238,232,170};
    final constant RealColor PaleGreen={152,251,152};
    final constant RealColor Yellow={255,255,0};
    final constant RealColor YellowGreen={154,205,50};
  end Colors;

model Test
  // works
  constant RealColor test_const1={255,20,147}; // pinkish

  // does not work
  final constant RealColor test_equal=Modelica_Colors.Colors.OrangeRed;
  constant RealColor test_pi={Modelica.Constants.pi,2*Modelica.Constants.pi,3*Modelica.Constants.pi};
  import Modelica_Colors.BasicColors.Yellow;

protected 
  // works
  constant RealColor test_const2={147,20,255};

  annotation (Icon(coordinateSystem(preserveAspectRatio=false), graphics={
          Rectangle(
          extent={{-100,100},{0,0}},
          lineColor=test_const2,
          fillColor=test_const1,
          fillPattern=FillPattern.Solid),
          
          Rectangle(
          extent={{0,0},{100,-100}},
          lineColor=Modelica_Colors.Colors.Cyan,
          fillColor=Yellow,
          fillPattern=FillPattern.Solid),
          
          Rectangle(
          extent={{0,100},{100,0}},
          lineColor=test_equal,
          fillColor=test_equal,
          fillPattern=FillPattern.Solid),
          
          Rectangle(
          extent={{-100,0},{0,-100}},
          lineColor=test_equal,
          fillColor=test_pi,
          fillPattern=FillPattern.Solid)}), Diagram(coordinateSystem(
          preserveAspectRatio=false)));

end Test;

  annotation (uses(Modelica(version="3.2.3")));
end Modelica_Colors;

Answer 1

原因很简单:图形注释取决于变量，只有在结果文件中存在变量时才能工作。因此，当您的颜色注释使用导入调用数据时，结果文件中不包含黄色代码，因此您的测试框无法着色。同样的逻辑可以应用于受保护的变量:它将不能应用于任何图形注释。