-int
-ImageFile::display (void) const
-{
- double pmin, pmax;
-
- getMinMax (pmin, pmax);
-
- return (displayScaling (1, pmin, pmax));
-}
-
-int
-ImageFile::displayScaling (const int scale, const ImageFileValue pmin, const ImageFileValue pmax) const
-{
- int nx = m_nx;
- int ny = m_ny;
- ImageFileArrayConst v = getArray();
- if (v == NULL || nx == 0 || ny == 0)
- return 0;
-
-#if HAVE_G2_H
- int* pPens = new int [nx * ny * scale * scale ];
-
- double view_scale = 255 / (pmax - pmin);
- int id_X11 = g2_open_X11 (nx * scale, ny * scale);
- int grayscale[256];
- for (int i = 0; i < 256; i++) {
- double cval = i / 255.;
- grayscale[i] = g2_ink (id_X11, cval, cval, cval);
- }
-
- for (int iy = ny - 1; iy >= 0; iy--) {
- int iRowPos = ((ny - 1 - iy) * scale) * (nx * scale);
- for (int ix = 0; ix < nx; ix++) {
- int cval = static_cast<int>((v[ix][iy] - pmin) * view_scale);
- if (cval < 0)
- cval = 0;
- else if (cval > 255)
- cval = 255;
- for (int sy = 0; sy < scale; sy++)
- for (int sx = 0; sx < scale; sx++)
- pPens[iRowPos+(sy * nx * scale)+(sx + (ix * scale))] = grayscale[cval];
- }
- }
-
- g2_image (id_X11, 0., 0., nx * scale, ny * scale, pPens);
-
- delete pPens;
- return (id_X11);
-#else
- return 0;
-#endif
-}
-
-