Method AdjustRange

Rendering/Annotation/vtkCubeAxesActor.cxx:956–1012

------------------------------------------------------------------------------ Method: vtkCubeAxesActor::AdjustRange Purpose: If the range is small, adjust the precision of the values displayed. Arguments: ranges The minimum and maximum specified values in each coordinate direction (min_x, max_x, min_y, max_y, min_z, max_z). NOTE: This may not the bounds of the box in physical space if the user

//    max_z). NOTE: This may not the bounds of the box in physical space
//    if the user has specified a custom axis range.
void vtkCubeAxesActor::AdjustRange(const double ranges[6])
{
  double xrange[2], yrange[2], zrange[2];

  xrange[0] = ranges[0];
  xrange[1] = ranges[1];
  yrange[0] = ranges[2];
  yrange[1] = ranges[3];
  zrange[0] = ranges[4];
  zrange[1] = ranges[5];

  if (this->LastXPow != 0)
  {
    xrange[0] /= pow(10., this->LastXPow);
    xrange[1] /= pow(10., this->LastXPow);
  }
  if (this->LastYPow != 0)
  {
    yrange[0] /= pow(10., this->LastYPow);
    yrange[1] /= pow(10., this->LastYPow);
  }
  if (this->LastZPow != 0)
  {
    zrange[0] /= pow(10., this->LastZPow);
    zrange[1] /= pow(10., this->LastZPow);
  }

  int xAxisDigits = this->Digits(xrange[0], xrange[1]);
  if (xAxisDigits != this->LastXAxisDigits)
  {
    char format[16];
    auto result = vtk::format_to_n(format, sizeof(format), "{{:.{:d}f}}", xAxisDigits);
    *result.out = '\0';
    this->SetXLabelFormat(format);
    this->LastXAxisDigits = xAxisDigits;
  }

  int yAxisDigits = this->Digits(yrange[0], yrange[1]);
  if (yAxisDigits != this->LastYAxisDigits)
  {
    char format[16];
    auto result = vtk::format_to_n(format, sizeof(format), "{{:.{:d}f}}", yAxisDigits);
    *result.out = '\0';
    this->SetYLabelFormat(format);
    this->LastYAxisDigits = yAxisDigits;
  }

  int zAxisDigits = this->Digits(zrange[0], zrange[1]);
  if (zAxisDigits != this->LastZAxisDigits)
  {
    char format[16];
    auto result = vtk::format_to_n(format, sizeof(format), "{{:.{:d}f}}", zAxisDigits);
    *result.out = '\0';
    this->SetZLabelFormat(format);
    this->LastZAxisDigits = zAxisDigits;
  }
}