comparison liboctave/mx-inlines.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 aa4a23337a0f
children c3d401562410
comparison
equal deleted inserted replaced
13755:8cd08124cb59 13756:6dfebfa334cb
207 mx_inline_any_negative (size_t n, const T* x) throw () 207 mx_inline_any_negative (size_t n, const T* x) throw ()
208 { 208 {
209 for (size_t i = 0; i < n; i++) 209 for (size_t i = 0; i < n; i++)
210 { 210 {
211 if (x[i] < 0) 211 if (x[i] < 0)
212 return true;
213 }
214
215 return false;
216 }
217
218 template <class T>
219 inline bool
220 mx_inline_any_positive (size_t n, const T* x) throw ()
221 {
222 for (size_t i = 0; i < n; i++)
223 {
224 if (x[i] > 0)
212 return true; 225 return true;
213 } 226 }
214 227
215 return false; 228 return false;
216 } 229 }