comparison liboctave/fNDArray.cc @ 13756:6dfebfa334cb

allow negative data log plots with OpenGL+FLTK graphics (bug #34232) * mx-inlines.cc (mx_inline_any_positive): New function. * lo-mappers.h (xpositive_sign (double), xpositive_sign (float)): New functions. * fNDArray.h, fNDArray.cc (FloatNDArray::any_element_is_positive): New function. * fMatrix.h, fMatrix.cc (FloatMatrix::any_element_is_positive): New function. * dNDArray.h, dNDArray.cc (NDArray::any_element_is_positive): New function. * dMatrix.h, dMatrix.cc (Matrix::any_element_is_positive): New function. * graphics.h.in (log_scaler::do_neg_scale): New function. (log_scaler::scale (const Matrix&) const, log_scaler::scale (const NDArray&) const): Call do_neg_scale if no array elements are positive. * graphics.cc (axes::properties::get_axis_limits): Omit zero from positive values for log plots. Correctly widen range for all negative log plots.
author John W. Eaton <jwe@octave.org>
date Wed, 26 Oct 2011 14:19:54 -0400
parents 15eefbd9d4e8
children 72c96de7a403
comparison
equal deleted inserted replaced
13755:8cd08124cb59 13756:6dfebfa334cb
512 return (neg_zero ? test_all (xnegative_sign) 512 return (neg_zero ? test_all (xnegative_sign)
513 : do_mx_check<float> (*this, mx_inline_any_negative)); 513 : do_mx_check<float> (*this, mx_inline_any_negative));
514 } 514 }
515 515
516 bool 516 bool
517 FloatNDArray::any_element_is_positive (bool neg_zero) const
518 {
519 return (neg_zero ? test_all (xpositive_sign)
520 : do_mx_check<float> (*this, mx_inline_any_positive));
521 }
522
523 bool
517 FloatNDArray::any_element_is_nan (void) const 524 FloatNDArray::any_element_is_nan (void) const
518 { 525 {
519 return do_mx_check<float> (*this, mx_inline_any_nan); 526 return do_mx_check<float> (*this, mx_inline_any_nan);
520 } 527 }
521 528