绘制抛物线图

Question

我必须绘制填充抛物线，现在我只是使用抛物线拉伸抛物线：

double dt = 0.0001;
for(double x = -50; x < 50; x+= dt){ // drawing parabola from -50 to 50
    double y = x*x;
    pic.drawPoint(x, y, cr, cg, cb); // x point, y point , R G B
}

为了让它填满抛物线的内部，我应该在这里改变什么？

Answer 1

解决了我刚刚添加了另一个循环

double dt = 0.0001;
for(double x = -50; x < 50; x+= dt){ // drawing parabola from -50 to 50
   double y = x*x;
   for(double yy = y; yy < maxY; yy+=dt){ 
       pic.drawPoint(x, yy, cr, cg, cb); // x point, y point , R G B
  }  
}