X-Git-Url: https://de.git.xonotic.org/?p=voretournament%2Fvoretournament.git;a=blobdiff_plain;f=misc%2Fmediasource%2Fextra%2Fnetradiant-src%2Fcontrib%2Fgtkgensurf%2Fview.cpp;fp=misc%2Fmediasource%2Fextra%2Fnetradiant-src%2Fcontrib%2Fgtkgensurf%2Fview.cpp;h=0000000000000000000000000000000000000000;hp=88acc4bde0d14ebdd8888238ac4a1c2b6e42c0a3;hb=65bc0125990fdbce3dd3232d61f1554cb7e317cb;hpb=4dab6b8497e278118a8237e150d276e91501bfb0

diff --git a/misc/mediasource/extra/netradiant-src/contrib/gtkgensurf/view.cpp b/misc/mediasource/extra/netradiant-src/contrib/gtkgensurf/view.cpp
deleted file mode 100644
index 88acc4bd..00000000
--- a/misc/mediasource/extra/netradiant-src/contrib/gtkgensurf/view.cpp
+++ /dev/null
@@ -1,1287 +0,0 @@
-/*
-GenSurf plugin for GtkRadiant
-Copyright (C) 2001 David Hyde, Loki software and qeradiant.com
-
-This library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
-License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
-
-This library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-*/
-
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "gensurf.h"
-
-#undef ISOMETRIC
-
-extern double backface;
-extern double dh, dv;
-extern double xmin,xmax,ymin,ymax,zmin,zmax;
-
-double    SF, SFG;         // Graphics scale factors
-double    XLo, XHi, YLo, YHi, ZLo, ZHi;
-double    yaw,roll;
-double    elevation,azimuth;
-int       cxChar = 10, cyChar = 16;
-int       X0, Y0;
-int       X0G, Y0G;
-
-static Rect rcCoord;   // where X= Y= is drawn
-static Rect rcGrid;    // rectangle within rcLower that forms the border of the grid, plus
-                       //   a 3 pixel slop.
-static Rect rcLower;   // lower half of window, where plan view is drawn
-static Rect rcUpper;   // upper half or entire window, where isometric projection is drawn
-
-void vertex_selected ();
-void texfont_init ();
-void texfont_write (const char *text, int l, int t);
-
-#define PEN_GRID { \
-  g_GLTable.m_pfn_qglLineWidth (1); \
-  g_GLTable.m_pfn_qglColor3f (0, 1, 0); \
-  g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE); }
-
-#define PEN_RED { \
-  g_GLTable.m_pfn_qglLineWidth (2); \
-  g_GLTable.m_pfn_qglColor3f (1, 0, 0); \
-  g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE); }
-
-#define PEN_DASH { \
-  g_GLTable.m_pfn_qglLineWidth (1); \
-  g_GLTable.m_pfn_qglColor3f (0, 1, 0); \
-  g_GLTable.m_pfn_qglLineStipple (1, 0xF0F0); \
-  g_GLTable.m_pfn_qglEnable (GL_LINE_STIPPLE); }
-
-#define DRAW_QUAD(rc,r,g,b) { \
-  g_GLTable.m_pfn_qglBegin (GL_QUADS); \
-  g_GLTable.m_pfn_qglColor3f (0,1,0); \
-  g_GLTable.m_pfn_qglVertex2i (rc.left-1, rc.bottom); \
-  g_GLTable.m_pfn_qglVertex2i (rc.right, rc.bottom); \
-  g_GLTable.m_pfn_qglVertex2i (rc.right, rc.top+1); \
-  g_GLTable.m_pfn_qglVertex2i (rc.left-1, rc.top+1); \
-  g_GLTable.m_pfn_qglColor3f (r,g,b); \
-  g_GLTable.m_pfn_qglVertex2i (rc.left, rc.bottom+1); \
-  g_GLTable.m_pfn_qglVertex2i (rc.right-1, rc.bottom+1); \
-  g_GLTable.m_pfn_qglVertex2i (rc.right-1, rc.top); \
-  g_GLTable.m_pfn_qglVertex2i (rc.left, rc.top); \
-  g_GLTable.m_pfn_qglEnd (); }
-
-
-#ifndef ISOMETRIC
-double    D=65536.;
-double    ct[3],st[3];
-double    Hhi, Hlo, Vhi, Vlo;
-#endif
-
-#define SUBDIVS 6
-
-
-void ShowPreview ()
-{
-  if (Preview)
-  {
-    if (g_pWndPreview == NULL)
-      CreateViewWindow ();
-    gtk_widget_show (g_pWndPreview);
-
-    UpdatePreview (true);
-  }
-  else
-    gtk_widget_hide (g_pWndPreview);
-}
-
-static void draw_preview ()
-{
-  int width = g_pPreviewWidget->allocation.width, height = g_pPreviewWidget->allocation.height;
-
-  g_GLTable.m_pfn_qglClearColor (0, 0, 0, 1);
-  g_GLTable.m_pfn_qglViewport (0, 0, width, height);
-  g_GLTable.m_pfn_qglMatrixMode (GL_PROJECTION);
-  g_GLTable.m_pfn_qglLoadIdentity ();
-  g_GLTable.m_pfn_qglOrtho (0, width, 0, height, -1, 1);
-  g_GLTable.m_pfn_qglClear (GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
-	
-	// ^Fishman - Antializing for the preview window.
-	if (Antialiasing)
-	{
-		g_GLTable.m_pfn_qglEnable(GL_BLEND);
-		g_GLTable.m_pfn_qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-		g_GLTable.m_pfn_qglEnable(GL_LINE_SMOOTH);
-	}
-	else
-	{
-		g_GLTable.m_pfn_qglDisable(GL_BLEND);
-		g_GLTable.m_pfn_qglDisable(GL_LINE_SMOOTH);
-	}
-
-  texfont_init ();
-
-  if (!ValidSurface ())
-    return;
-
-  rcUpper.left = 0;
-  rcUpper.right = width;
-  rcUpper.bottom = 0;
-  rcUpper.top = height;
-  rcLower.left = 0;
-  rcLower.right = width;
-  rcLower.bottom = 0;
-  rcLower.top = height;
-
-  if (VertexMode)
-  {
-    rcUpper.bottom = rcUpper.top/2;
-    DrawPreview (rcUpper);
-    g_GLTable.m_pfn_qglBegin (GL_LINES);
-    g_GLTable.m_pfn_qglVertex2i (rcUpper.left, rcUpper.bottom);
-    g_GLTable.m_pfn_qglVertex2i (rcUpper.right, rcUpper.bottom);
-    g_GLTable.m_pfn_qglEnd ();
-    rcLower.top = rcUpper.bottom-1;
-    DrawGrid (rcLower);
-    rcCoord.left = rcLower.left;
-    rcCoord.right = rcLower.right;
-    rcCoord.bottom = rcLower.bottom;
-    rcCoord.top = rcLower.top;
-    rcCoord.top = rcCoord.bottom+cyChar;
-    rcCoord.right = rcCoord.left + 15*cxChar;
-    rcGrid.left   = X0G - 3;
-    rcGrid.bottom = Y0G - 3;
-    rcGrid.right  = X0G + (int)(SFG*(Hur-Hll)) + 3;
-    rcGrid.top    = Y0G + (int)(SFG*(Vur-Vll)) + 3;
-  }
-  else
-    DrawPreview (rcUpper);
-}
-
-static gint expose (GtkWidget *widget, GdkEventExpose *event, gpointer data)
-{
-  if (event->count > 0)
-    return TRUE;
-
-  if (!g_UIGtkTable.m_pfn_glwidget_make_current (g_pPreviewWidget))
-  {
-    g_FuncTable.m_pfnSysPrintf ("GtkGenSurf: glMakeCurrent failed\n");
-    return TRUE;
-  }
-
-  draw_preview ();
-
-  g_UIGtkTable.m_pfn_glwidget_swap_buffers (g_pPreviewWidget);
-  g_GLTable.m_pfn_QE_CheckOpenGLForErrors ();
-
-  return TRUE;
-}
-
-static void button_press (GtkWidget *widget, GdkEventButton *event, gpointer data)
-{
-  Point pt = { (long)event->x, widget->allocation.height - (long)event->y };
-  bool        Selected;
-  double      x,y;
-  int         i, j, k, ks;
-  int         i0, i1, j0, j1;
-
-  if ((!VertexMode) || (event->button != 1))
-    return;
-
-  if (!PtInRect (&rcGrid,pt))
-  {
-    gdk_beep ();
-    return;
-  }
-
-  x = Hll + (pt.x-X0G)/SFG;
-  y = Vur - (pt.y-Y0G)/SFG;
-  i = (int)(floor( (x-Hll)/dh - 0.5) + 1);
-  j = (int)(floor( (y-Vll)/dv - 0.5) + 1);
-  if (i < 0 || i > NH || j < 0 || j > NV)
-  {
-    gdk_beep ();
-    return;
-  }
-
-  if(!CanEdit(i,j))
-  {
-    gdk_beep ();
-    return;
-  }
-
-  // Control key pressed - add this point, or remove it if already selected
-  if ((event->state & GDK_CONTROL_MASK) != 0)
-  {
-    Selected = FALSE;
-    if (NumVerticesSelected)
-    {
-      for (k=0; k<NumVerticesSelected && !Selected; k++)
-      {
-        if(Vertex[k].i == i && Vertex[k].j == j)
-        {
-          Selected = TRUE;
-          ks = k;
-        }
-      }
-    }
-
-    // Already selected - unselect it.
-    if (Selected)
-    {
-      if (ks < NumVerticesSelected)
-      {
-        for (k=ks;k<NumVerticesSelected-1;k++)
-        {
-          Vertex[k].i = Vertex[k+1].i;
-          Vertex[k].j = Vertex[k+1].j;
-        }
-        NumVerticesSelected--;
-      }
-    }
-    else
-    {
-      Vertex[NumVerticesSelected].i = i;
-      Vertex[NumVerticesSelected].j = j;
-      NumVerticesSelected++;
-    }
-  }
-  else if ((event->state & GDK_SHIFT_MASK) != 0)
-  {
-    if (NumVerticesSelected)
-    {
-      NumVerticesSelected = 1;
-      i0 = min(Vertex[0].i, i);
-      i1 = max(Vertex[0].i, i);
-      j0 = min(Vertex[0].j, j);
-      j1 = max(Vertex[0].j, j);
-      for(i=i0; i<=i1; i++)
-      {
-        for(j=j0; j<=j1; j++)
-        {
-          if(i==0  && j==0 ) continue;
-          if(i==NH && j==0 ) continue;
-          if(i==0  && j==NV) continue;
-          if(i==NH && j==NV) continue;
-          if(i != Vertex[0].i || j != Vertex[0].j)
-          {
-            Vertex[NumVerticesSelected].i = i;
-            Vertex[NumVerticesSelected].j = j;
-            NumVerticesSelected++;
-          }
-        }
-      }
-    }
-    else
-    {
-      Vertex[0].i = i;
-      Vertex[0].j = j;
-      NumVerticesSelected = 1;
-    }
-  }
-  else
-  {
-    Vertex[0].i = i;
-    Vertex[0].j = j;
-    NumVerticesSelected = 1;
-  }
-
-  vertex_selected ();
-}
-
-static void motion (GtkWidget *widget, GdkEventMotion *event, gpointer data)
-{
-  Point pt = { (long)event->x, widget->allocation.height - (long)event->y };
-
-  if (!VertexMode)
-    return;
-
-  if (!g_UIGtkTable.m_pfn_glwidget_make_current (g_pPreviewWidget))
-  {
-    g_FuncTable.m_pfnSysPrintf ("GtkGenSurf: glMakeCurrent failed\n");
-    return;
-  }
-
-  g_GLTable.m_pfn_qglEnable (GL_SCISSOR_TEST);
-  g_GLTable.m_pfn_qglScissor (rcCoord.left, rcCoord.bottom, rcCoord.right-rcCoord.left,
-                              rcCoord.top-rcCoord.bottom);
-  g_GLTable.m_pfn_qglClear (GL_COLOR_BUFFER_BIT);
-
-  if (PtInRect(&rcGrid,pt))
-  {
-    GdkCursor *cursor = gdk_cursor_new (GDK_CROSS);
-    gdk_window_set_cursor (g_pWndPreview->window, cursor);
-    gdk_cursor_unref (cursor);
-
-    char Text[32];
-    int x, y;
-
-    x = (int)(Hll + (pt.x-X0G)/SFG);
-    y = (int)(Vur - (pt.y-Y0G)/SFG);
-    switch(Plane)
-    {
-    case PLANE_XZ0:
-    case PLANE_XZ1:
-      sprintf(Text," x=%d, z=%d   ",(int)(floor(x-0.5)+1.) ,(int)(floor(y-0.5)+1.) );
-      break;
-    case PLANE_YZ0:
-    case PLANE_YZ1:
-      sprintf(Text," y=%d, z=%d   ",(int)(floor(x-0.5)+1.) ,(int)(floor(y-0.5)+1.) );
-      break;
-    default:
-      sprintf(Text," x=%d, y=%d   ",(int)(floor(x-0.5)+1.) ,(int)(floor(y-0.5)+1.) );
-    }
-
-    texfont_write (Text, rcCoord.left, rcCoord.top);
-  }
-  else
-  {
-    gdk_window_set_cursor (g_pWndPreview->window, NULL);
-  }
-
-  g_UIGtkTable.m_pfn_glwidget_swap_buffers (g_pPreviewWidget);
-  g_GLTable.m_pfn_QE_CheckOpenGLForErrors ();
-  g_GLTable.m_pfn_qglDisable (GL_SCISSOR_TEST);
-}
-
-static gint preview_close (GtkWidget *widget, gpointer data)
-{
-  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (g_object_get_data (G_OBJECT (g_pWnd), "main_preview")), FALSE);
-  return TRUE;
-}
-
-static void preview_focusout (GtkSpinButton *spin, GdkEventFocus *event, double *data)
-{
-  *data = DegreesToRadians ((double)(gtk_spin_button_get_value_as_int (spin) % 360));
-  UpdatePreview (false);
-}
-
-static gint doublevariable_spinfocusout(GtkWidget* widget, GdkEventFocus* event, gpointer data)
-{
-  preview_focusout(GTK_SPIN_BUTTON(widget), event, reinterpret_cast<double*>(data));
-  return FALSE;
-}
-
-static void preview_spin (GtkAdjustment *adj, double *data)
-{
-  *data = DegreesToRadians (adj->value);
-  UpdatePreview (false);
-}
-
-void CreateViewWindow ()
-{
-  GtkWidget *dlg, *vbox, *hbox, *label, *spin, *frame;
-  GtkObject *adj;
-
-#ifndef ISOMETRIC
-  elevation = PI/6.;
-  azimuth   = PI/6.;
-#endif
-
-  g_pWndPreview = dlg = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-  gtk_window_set_title (GTK_WINDOW (dlg), "GtkGenSurf Preview");
-  gtk_signal_connect (GTK_OBJECT (dlg), "delete_event", GTK_SIGNAL_FUNC (preview_close), NULL);
-  gtk_signal_connect (GTK_OBJECT (dlg), "destroy", GTK_SIGNAL_FUNC (gtk_widget_destroy), NULL);
-  gtk_window_set_transient_for (GTK_WINDOW (dlg), GTK_WINDOW (g_pWnd));
-  gtk_window_set_default_size (GTK_WINDOW (dlg), 300, 400);
-
-  vbox = gtk_vbox_new (FALSE, 5);
-  gtk_widget_show (vbox);
-  gtk_container_add (GTK_CONTAINER (dlg), vbox);
-
-#ifndef ISOMETRIC
-  hbox = gtk_hbox_new (TRUE, 5);
-  gtk_widget_show (hbox);
-  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0);
-  gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
-
-  label = gtk_label_new ("Elevation");
-  gtk_widget_show (label);
-  gtk_misc_set_alignment (GTK_MISC (label), 1, 0.5);
-  gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);
-
-  adj = gtk_adjustment_new (30, -90, 90, 1, 10, 0);
-  gtk_signal_connect (adj, "value_changed", GTK_SIGNAL_FUNC (preview_spin), &elevation);
-  spin = gtk_spin_button_new (GTK_ADJUSTMENT (adj), 1, 0);
-  gtk_widget_show (spin);
-  gtk_box_pack_start (GTK_BOX (hbox), spin, FALSE, TRUE, 0);
-  g_signal_connect (G_OBJECT (spin), "focus_out_event", G_CALLBACK (doublevariable_spinfocusout), &elevation);
-
-  adj = gtk_adjustment_new (30, 0, 359, 1, 10, 0);
-  gtk_signal_connect (adj, "value_changed", GTK_SIGNAL_FUNC (preview_spin), &azimuth);
-  spin = gtk_spin_button_new (GTK_ADJUSTMENT (adj), 1, 0);
-  gtk_widget_show (spin);
-  gtk_spin_button_set_wrap (GTK_SPIN_BUTTON (spin), TRUE);
-  gtk_box_pack_end (GTK_BOX (hbox), spin, FALSE, TRUE, 0);
-
-  label = gtk_label_new ("Azimuth");
-  gtk_widget_show (label);
-  gtk_misc_set_alignment (GTK_MISC (label), 1, 0.5);
-  gtk_box_pack_end (GTK_BOX (hbox), label, FALSE, TRUE, 0);
-  g_signal_connect (G_OBJECT (spin), "focus_out_event", G_CALLBACK (doublevariable_spinfocusout), &azimuth);
-#endif
-
-  frame = gtk_frame_new (NULL);
-  gtk_widget_show (frame);
-  gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
-  gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
-
-  g_pPreviewWidget = g_UIGtkTable.m_pfn_glwidget_new (FALSE, NULL);
-
-  gtk_widget_set_events (g_pPreviewWidget, GDK_EXPOSURE_MASK|GDK_BUTTON_PRESS_MASK|GDK_POINTER_MOTION_MASK);
-  gtk_signal_connect (GTK_OBJECT (g_pPreviewWidget), "expose_event", GTK_SIGNAL_FUNC (expose), NULL);
-  gtk_signal_connect (GTK_OBJECT (g_pPreviewWidget), "motion_notify_event", GTK_SIGNAL_FUNC (motion), NULL);
-  gtk_signal_connect (GTK_OBJECT (g_pPreviewWidget), "button_press_event",
-                      GTK_SIGNAL_FUNC (button_press), NULL);
-
-  gtk_widget_show (g_pPreviewWidget);
-  gtk_container_add (GTK_CONTAINER (frame), g_pPreviewWidget);
-
-  if (Preview)
-    gtk_widget_show (g_pWndPreview);
-
-  UpdatePreview (true);
-}
-
-//=============================================================
-/* DrawPreview */
-void DrawPreview (Rect rc)
-{
-#define COSXA 0.8660254037844
-#define SINXA 0.5
-#define COSYA 0.8660254037844
-#define SINYA 0.5
-
-  double     L;
-  double     x,y;
-  int        i, j;
-  Point      pt[8];
-  XYZ        v[8];
-  char axis[3][2] = {"X","Y","Z"};
-
-#ifndef ISOMETRIC
-  evaluate();
-#endif
-
-  XLo = xmin;
-  XHi = xmax;
-  YLo = ymin;
-  YHi = ymax;
-  ZLo = zmin;
-  ZHi = zmax;
-  switch (Plane)
-  {
-  case PLANE_XY1:
-    ZHi = backface;
-    break;
-  case PLANE_XZ0:
-    YLo = backface;
-    break;
-  case PLANE_XZ1:
-    YHi = backface;
-    break;
-  case PLANE_YZ0:
-    XLo = backface;
-    break;
-  case PLANE_YZ1:
-    XHi = backface;
-    break;
-  default:
-    ZLo = backface;
-  }
-
-
-
-  GetScaleFactor(rc);
-	//PEN_GRID
-	g_GLTable.m_pfn_qglLineWidth (1);
-	g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-	g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-
-    if (Decimate > 0 && (Game != QUAKE3 || UsePatches==0) )
-    {
-      XYZ  *vv;
-
-      vv   = (XYZ *) malloc(gNumNodes * sizeof(XYZ));
-      for(i=0; i<gNumNodes; i++)
-      {
-        for(j=0; j<3; j++)
-          vv[i].p[j] = (double)(gNode[i].p[j]);
-        project(&vv[i]);
-      }
-
-      for(i=0; i<gNumTris; i++)
-      {
-        for(j=0; j<3; j++)
-          Scale(rc,vv[gTri[i].v[j]],&pt[j]);
-
-        g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-        g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglVertex2i (pt[1].x, pt[1].y);
-        g_GLTable.m_pfn_qglVertex2i (pt[2].x, pt[2].y);
-        g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglEnd ();
-      }
-      free(vv);
-    }
-    else if (Game==QUAKE3 && UsePatches!=0)
-    {
-      int		axis, ii, jj, k;
-      float	u, v;
-      XYZ		uv[3][3];
-      XYZ		Ctrl[3],out;
-
-      switch (Plane)
-      {
-      case PLANE_XY0:
-      case PLANE_XY1:
-        k = 2;
-        break;
-      case PLANE_XZ0:
-      case PLANE_XZ1:
-        k = 1;
-        break;
-      default:
-        k = 0;
-      }
-      for(i=0; i<NH; i+=2)
-      {
-        for(j=0; j<NV; j+=2)
-        {
-          VectorCopy(xyz[i  ][j  ].p,uv[0][0].p);
-          VectorCopy(xyz[i+1][j  ].p,uv[1][0].p);
-          VectorCopy(xyz[i+2][j  ].p,uv[2][0].p);
-          VectorCopy(xyz[i  ][j+1].p,uv[0][1].p);
-          VectorCopy(xyz[i+1][j+1].p,uv[1][1].p);
-          VectorCopy(xyz[i+2][j+1].p,uv[2][1].p);
-          VectorCopy(xyz[i  ][j+2].p,uv[0][2].p);
-          VectorCopy(xyz[i+1][j+2].p,uv[1][2].p);
-          VectorCopy(xyz[i+2][j+2].p,uv[2][2].p);
-          uv[1][0].p[k] = (4*xyz[i+1][j  ].p[k] - xyz[i  ][j  ].p[k] - xyz[i+2][j  ].p[k])/2;
-          uv[0][1].p[k] = (4*xyz[i  ][j+1].p[k] - xyz[i  ][j  ].p[k] - xyz[i  ][j+2].p[k])/2;
-          uv[2][1].p[k] = (4*xyz[i+2][j+1].p[k] - xyz[i+2][j  ].p[k] - xyz[i+2][j+2].p[k])/2;
-          uv[1][2].p[k] = (4*xyz[i+1][j+2].p[k] - xyz[i  ][j+2].p[k] - xyz[i+2][j+2].p[k])/2;
-          uv[1][1].p[k] = (16*xyz[i+1][j+1].p[k] -
-                           xyz[i  ][j  ].p[k] - 2*xyz[i+1][j  ].p[k] -  xyz[i+2][j  ].p[k] -
-                           2*xyz[i  ][j+1].p[k]                        -2*xyz[i+2][j+1].p[k] -
-                           xyz[i  ][j+2].p[k] - 2*xyz[i+1][j+2].p[k] -  xyz[i+2][j+2].p[k]   )/4;
-
-          for(ii=0; ii<=SUBDIVS; ii++)
-          {
-            if(ii==0 || ii==SUBDIVS/2 || ii==SUBDIVS)
-						{
-							g_GLTable.m_pfn_qglLineWidth (1);
-							g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-							g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-							// PEN_GRID
-						}
-            else
-						{
-							g_GLTable.m_pfn_qglLineWidth (1);
-							g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-							g_GLTable.m_pfn_qglLineStipple (1, 0xF0F0);
-							g_GLTable.m_pfn_qglEnable (GL_LINE_STIPPLE);
-              // PEN_DASH
-						}
-
-            u = (float)(ii)/(float)(SUBDIVS);
-            for(jj=0; jj<3; jj++)
-            {
-              for(axis=0; axis<3; axis++)
-              {
-                float	a, b, c;
-                float	qA, qB, qC;
-                a = (float)uv[0][jj].p[axis];
-                b = (float)uv[1][jj].p[axis];
-                c = (float)uv[2][jj].p[axis];
-                qA = a - 2 * b + c;
-                qB = 2 * b - 2 * a;
-                qC = a;
-                Ctrl[jj].p[axis] = qA * u * u + qB * u + qC;
-              }
-            }
-            VectorCopy(Ctrl[0].p,out.p);
-            project(&out);
-            Scale(rc,out,&pt[0]);
-            g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-            g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-            for(jj=1; jj<=SUBDIVS; jj++)
-            {
-              v = (float)(jj)/(float)(SUBDIVS);
-              for (axis = 0 ; axis < 3 ; axis++) 
-              {
-                float	a, b, c;
-                float	qA, qB, qC;
-                a = (float)Ctrl[0].p[axis];
-                b = (float)Ctrl[1].p[axis];
-                c = (float)Ctrl[2].p[axis];
-                qA = a - 2 * b + c;
-                qB = 2 * b - 2 * a;
-                qC = a;
-                out.p[axis] = qA * v * v + qB * v + qC;
-              }
-              project(&out);
-              Scale(rc,out,&pt[0]);
-              g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-            }
-            g_GLTable.m_pfn_qglEnd ();
-          }
-          for(jj=0; jj<=SUBDIVS; jj++)
-          {
-            if(jj==0 || jj==SUBDIVS/2 || jj==SUBDIVS)
-						{
-							g_GLTable.m_pfn_qglLineWidth (1);
-							g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-							g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-              // PEN_GRID
-						}
-            else
-						{
-							g_GLTable.m_pfn_qglLineWidth (1);
-							g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-							g_GLTable.m_pfn_qglLineStipple (1, 0xF0F0);
-							g_GLTable.m_pfn_qglEnable (GL_LINE_STIPPLE);
-							// PEN_DASH
-						}
-
-            v = (float)(jj)/(float)(SUBDIVS);
-            for(ii=0; ii<3; ii++)
-            {
-              for(axis=0; axis<3; axis++)
-              {
-                float	a, b, c;
-                float	qA, qB, qC;
-                a = (float)uv[ii][0].p[axis];
-                b = (float)uv[ii][1].p[axis];
-                c = (float)uv[ii][2].p[axis];
-                qA = a - 2 * b + c;
-                qB = 2 * b - 2 * a;
-                qC = a;
-                Ctrl[ii].p[axis] = qA * v * v + qB * v + qC;
-              }
-            }
-            VectorCopy(Ctrl[0].p,out.p);
-            project(&out);
-            Scale(rc,out,&pt[0]);
-            g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-            g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-            for(ii=1; ii<=SUBDIVS; ii++)
-            {
-              u = (float)(ii)/(float)(SUBDIVS);
-              for (axis = 0 ; axis < 3 ; axis++) 
-              {
-                float	a, b, c;
-                float	qA, qB, qC;
-                a = (float)Ctrl[0].p[axis];
-                b = (float)Ctrl[1].p[axis];
-                c = (float)Ctrl[2].p[axis];
-                qA = a - 2 * b + c;
-                qB = 2 * b - 2 * a;
-                qC = a;
-                out.p[axis] = qA * u * u + qB * u + qC;
-              }
-              project(&out);
-              Scale(rc,out,&pt[0]);
-              g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-            }
-            g_GLTable.m_pfn_qglEnd ();
-          }
-        }
-      }
-    }
-    else
-    {
-      for(i=0; i<=NH; i++)
-      {
-        Scale(rc,xyz[i][0],&pt[0]);
-        g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-        g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        for(j=1; j<=NV; j++)
-        {
-          Scale(rc,xyz[i][j],&pt[0]);
-          g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        }
-        g_GLTable.m_pfn_qglEnd ();
-      }
-      for(j=0; j<=NV; j++)
-      {
-        Scale(rc,xyz[0][j],&pt[0]);
-        g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-        g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        for(i=1; i<=NH; i++)
-        {
-          Scale(rc,xyz[i][j],&pt[0]);
-          g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        }
-        g_GLTable.m_pfn_qglEnd ();
-      }
-    }
-
-  if(Game!=QUAKE3 || UsePatches==0)
-  {
-    // Draw lines from corners to base, and lines around base
-    for(i=0; i<=NH; i+=NH)
-    {
-      for(j=0; j<=NV; j+=NV)
-      {
-        VectorCopy(xyz[i][j].p, v[0].p);
-        switch(Plane)
-        {
-        case PLANE_XZ0:
-        case PLANE_XZ1:
-          v[0].p[1] = backface;
-          break;
-        case PLANE_YZ0:
-        case PLANE_YZ1:
-          v[0].p[0] = backface;
-          break;
-        default:
-          v[0].p[2] = backface;
-        }
-        Scale(rc,xyz[i][j],&pt[0]);
-#ifndef ISOMETRIC
-        project(&v[0]);
-#endif
-        Scale(rc,v[0],&pt[1]);
-        g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-        g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-        g_GLTable.m_pfn_qglVertex2i (pt[1].x, pt[1].y);
-        g_GLTable.m_pfn_qglEnd ();
-      }
-    }
-    VectorCopy(xyz[ 0][ 0].p, v[0].p);
-    VectorCopy(xyz[NH][ 0].p, v[1].p);
-    VectorCopy(xyz[NH][NV].p, v[2].p);
-    VectorCopy(xyz[ 0][NV].p, v[3].p);
-    switch(Plane)
-    {
-    case PLANE_XZ0:
-    case PLANE_XZ1:
-      v[0].p[1] = backface;;
-      v[1].p[1] = v[0].p[1];
-      v[2].p[1] = v[0].p[1];
-      v[3].p[1] = v[0].p[1];
-      break;
-    case PLANE_YZ0:
-    case PLANE_YZ1:
-      v[0].p[0] = backface;
-      v[1].p[0] = v[0].p[0];
-      v[2].p[0] = v[0].p[0];
-      v[3].p[0] = v[0].p[0];
-      break;
-    default:
-      v[0].p[2] = backface;
-      v[1].p[2] = v[0].p[2];
-      v[2].p[2] = v[0].p[2];
-      v[3].p[2] = v[0].p[2];
-    }
-#ifndef ISOMETRIC
-    project(&v[3]);
-#endif
-    Scale(rc,v[3],&pt[0]);
-    g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-    g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-    for(i=0; i<3; i++)
-    {
-#ifndef ISOMETRIC
-      project(&v[i]);
-#endif
-      Scale(rc,v[i],&pt[1]);
-      g_GLTable.m_pfn_qglVertex2i (pt[1].x, pt[1].y);
-    }
-    g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-    g_GLTable.m_pfn_qglEnd ();
-  }
-
-  g_GLTable.m_pfn_qglLineWidth (1);
-  g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-  g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-
-#ifdef ISOMETRIC
-  // Draw small depiction of coordinate axes
-  pt[0].x = rc.right  - cxChar   - cxChar/2 -  cyChar;
-  pt[0].y = rc.bottom - cyChar/2 - cxChar/2;
-  pt[1].x = pt[0].x + (int)(cyChar*COSXA);
-  pt[1].y = pt[0].y - (int)(cyChar*SINXA);
-  MoveToEx(hdc,pt[0].x,pt[0].y,NULL);
-  LineTo(hdc,pt[1].x,pt[1].y);
-  SetTextAlign(hdc,TA_LEFT | TA_TOP);
-  TextOut(hdc,pt[1].x,pt[1].y-cyChar/2,"X",1);
-  pt[1].x = pt[0].x - (int)(cyChar*COSYA);
-  pt[1].y = pt[0].y - (int)(cyChar*SINYA);
-  MoveToEx(hdc,pt[0].x,pt[0].y,NULL);
-  LineTo(hdc,pt[1].x,pt[1].y);
-  SetTextAlign(hdc,TA_RIGHT | TA_TOP);
-  TextOut(hdc,pt[1].x,pt[1].y-cyChar/2,"Y",1);
-  pt[1].x = pt[0].x;
-  pt[1].y = pt[0].y - cyChar;
-  MoveToEx(hdc,pt[0].x,pt[0].y,NULL);
-  LineTo(hdc,pt[1].x,pt[1].y);
-  SetTextAlign(hdc,TA_CENTER | TA_BOTTOM);
-  TextOut(hdc,pt[1].x,pt[1].y,"Z",1);
-#else
-  L = 2*(double)cyChar/SF;
-  v[0].p[0] = 0.;
-  v[0].p[1] = 0.;
-  v[0].p[2] = 0.;
-  v[1].p[0] = L;
-  v[1].p[1] = 0.;
-  v[1].p[2] = 0.;
-  v[2].p[0] = 0.;
-  v[2].p[1] = L;
-  v[2].p[2] = 0.;
-  v[3].p[0] = 0.;
-  v[3].p[1] = 0.;
-  v[3].p[2] = L;
-  for(i=0; i<=3; i++)
-  {
-    project(&v[i]);
-    Scale(rc,v[i],&pt[i]);
-  }
-  for(i=1; i<=3; i++)
-  {
-    pt[i].x += -pt[0].x + rc.right  - 2*cyChar;
-    pt[i].y += -pt[0].y + rc.bottom + 2*cyChar;
-  }
-  pt[0].x = rc.right  - 2*cyChar;
-  pt[0].y = rc.bottom + 2*cyChar;
-
-  for(i=1; i<=3; i++)
-  {
-    g_GLTable.m_pfn_qglBegin (GL_LINES);
-    g_GLTable.m_pfn_qglVertex2i (pt[0].x, pt[0].y);
-    g_GLTable.m_pfn_qglVertex2i (pt[i].x, pt[i].y);
-    g_GLTable.m_pfn_qglEnd ();
-    texfont_write (axis[i-1], pt[i].x-cxChar/2,pt[i].y+cyChar/2);
-  }
-#endif
-
-  // Draw player model's bounding box in red to give a sense of scale
-  // PEN_RED
-	g_GLTable.m_pfn_qglLineWidth (2);
-	g_GLTable.m_pfn_qglColor3f (1, 0, 0);
-	g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-
-  switch(Plane)
-  {
-  case PLANE_XY1:
-    v[0].p[0] = xyz[NH/2][NV/2].p[0] + PlayerBox[Game].x[0];
-    v[0].p[1] = xyz[NH/2][NV/2].p[1] + PlayerBox[Game].y[0];
-    v[0].p[2] = zmin - PlayerBox[Game].z[0] - 32;
-    break;
-  case PLANE_XZ0:
-    v[0].p[0] = (xmax+xmin)/2 + PlayerBox[Game].x[0];
-    v[0].p[1] = ymax+64;
-    v[0].p[2] = zmin;
-    break;
-  case PLANE_XZ1:
-    v[0].p[0] = (xmax+xmin)/2 + PlayerBox[Game].x[0];
-    v[0].p[1] = ymin-64;
-    v[0].p[2] = zmin;
-    break;
-  case PLANE_YZ0:
-    v[0].p[0] = xmax+64;
-    v[0].p[1] = (ymax+ymin)/2 + PlayerBox[Game].y[0];
-    v[0].p[2] = zmin;
-    break;
-  case PLANE_YZ1:
-    v[0].p[0] = xmin-64;
-    v[0].p[1] = (ymax+ymin)/2 + PlayerBox[Game].y[0];
-    v[0].p[2] = zmin;
-    break;
-  default:
-    // Put player on a node. For patches, put on an even numbered node.
-    if(Game==QUAKE3 && UsePatches!=0)
-    {
-      if(NH > 2)
-        x = Hll + dh * (int)(NH/2 + 1);
-      else
-        x = Hll + dh * (int)(NH/2);
-      if(NV > 2)
-        y = Vll + dv * (int)(NV/2 + 1);
-      else
-        y = Vll + dv * (int)(NV/2);
-    }
-    else
-    {
-      if(NH > 1)
-        x = Hll + dh * (int)(NH/2);
-      else
-        x = Hll + dh/2;
-      if(NV > 1)
-        y = Vll + dv * (int)(NV/2);
-      else
-        y = Vll + dv/2;
-    }
-//		x = (Hll+Hur)/2.;
-//		y = (Vll+Vur)/2.;
-    v[0].p[0] = x + PlayerBox[Game].x[0];
-    v[0].p[1] = y + PlayerBox[Game].y[0];
-    v[0].p[2] = PlayerStartZ(x,y) + PlayerBox[Game].z[0] + 8; // add 8 cuz I'm a pessimist
-  }
-  v[1].p[0] = v[0].p[0] + PlayerBox[Game].x[1] - PlayerBox[Game].x[0];
-  v[1].p[1] = v[0].p[1];
-  v[1].p[2] = v[0].p[2];
-  v[2].p[0] = v[1].p[0];
-  v[2].p[1] = v[1].p[1] + PlayerBox[Game].y[1] - PlayerBox[Game].y[0];
-  v[2].p[2] = v[0].p[2];
-  v[3].p[0] = v[0].p[0];
-  v[3].p[1] = v[2].p[1];
-  v[3].p[2] = v[0].p[2];
-  VectorCopy(v[0].p,v[4].p);
-  VectorCopy(v[1].p,v[5].p);
-  VectorCopy(v[2].p,v[6].p);
-  VectorCopy(v[3].p,v[7].p);
-  v[4].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-  v[5].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-  v[6].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-  v[7].p[2] += PlayerBox[Game].z[1] - PlayerBox[Game].z[0];
-  for(i=0; i<=7; i++)
-  {
-#ifndef ISOMETRIC
-    project(&v[i]);
-#endif
-    Scale(rc,v[i],&pt[i]);
-  }
-  g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-  g_GLTable.m_pfn_qglVertex2i (pt[3].x, pt[3].y);
-  for(i=0; i<=3; i++)
-    g_GLTable.m_pfn_qglVertex2i (pt[i].x, pt[i].y);
-  g_GLTable.m_pfn_qglEnd ();
-  g_GLTable.m_pfn_qglBegin (GL_LINE_STRIP);
-  g_GLTable.m_pfn_qglVertex2i (pt[7].x, pt[7].y);
-  for(i=4; i<=7; i++)
-    g_GLTable.m_pfn_qglVertex2i (pt[i].x, pt[i].y);
-  g_GLTable.m_pfn_qglEnd ();
-  g_GLTable.m_pfn_qglBegin (GL_LINES);
-  for(i=0; i<=3; i++)
-  {
-    g_GLTable.m_pfn_qglVertex2i (pt[i].x,pt[i].y);
-    g_GLTable.m_pfn_qglVertex2i (pt[i+4].x,pt[i+4].y);
-  }
-  g_GLTable.m_pfn_qglEnd ();
-
-  g_GLTable.m_pfn_qglLineWidth (1);
-  g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-  g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-}
-//=============================================================
-void DrawGrid(Rect rc)
-{
-  int        i, j, k;
-  double     h,w,x,y;
-  Point      pt[2];
-  Rect       rcBox;
-
-  w = (double)(rc.right-rc.left+1) - cxChar;
-  h = (double)(rc.top-rc.bottom+1) - cxChar - cyChar;
-
-  SFG = w/(Hur-Hll);
-  SFG = min(SFG, h/(Vur-Vll));
-
-  // Center drawing
-  X0G = (int)(rc.left + rc.right - (int)(SFG*(Hur-Hll)))/2;
-  Y0G = (int)(rc.top + rc.bottom + cyChar - (int)(SFG*(Vur-Vll)))/2;
-
-  g_GLTable.m_pfn_qglLineWidth (2);
-  g_GLTable.m_pfn_qglColor3f (0, 1, 0);
-  g_GLTable.m_pfn_qglDisable (GL_LINE_STIPPLE);
-
-  pt[0].y = Y0G;
-  pt[1].y = Y0G + (int)(SFG*(Vur-Vll));
-  g_GLTable.m_pfn_qglBegin (GL_LINES);
-  for(i=0; i<=NH; i++)
-  {
-    x = Hll + i * dh;
-    pt[0].x = X0G + (int)(SFG*(x-Hll));
-    g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[0].y);
-    g_GLTable.m_pfn_qglVertex2i(pt[0].x, pt[1].y);
-  }
-  g_GLTable.m_pfn_qglEnd ();
-  pt[0].x = X0G;
-  pt[1].x = X0G + (int)(SFG*(Hur-Hll));
-  g_GLTable.m_pfn_qglBegin (GL_LINES);
-  for(i=0; i<=NV; i++)
-  {
-    y = Vll + i * dv;
-    pt[0].y = Y0G + (int)(SFG*(Vur-y));
-    g_GLTable.m_pfn_qglVertex2i (pt[0].x,pt[0].y);
-    g_GLTable.m_pfn_qglVertex2i (pt[1].x,pt[0].y);
-  }
-  g_GLTable.m_pfn_qglEnd ();
-
-  g_GLTable.m_pfn_qglLineWidth (1);
-
-  // Draw axes
-  pt[0].x = rc.right  - cyChar - cxChar - cyChar/2;
-  pt[0].y = rc.bottom + cyChar/2;
-  pt[1].x = pt[0].x + cyChar;
-  pt[1].y = pt[0].y;
-  g_GLTable.m_pfn_qglBegin (GL_LINES);
-  g_GLTable.m_pfn_qglVertex2i (pt[0].x,pt[0].y);
-  g_GLTable.m_pfn_qglVertex2i (pt[1].x,pt[1].y);
-  g_GLTable.m_pfn_qglEnd ();
-  switch(Plane)
-  {
-  case PLANE_YZ0:
-  case PLANE_YZ1:
-    texfont_write ("Y", pt[1].x, pt[1].y+cyChar/2);
-    break;
-  default:
-    texfont_write ("X", pt[1].x, pt[1].y+cyChar/2);
-  }
-  pt[1].x = pt[0].x;
-  pt[1].y = pt[0].y + cyChar;
-  g_GLTable.m_pfn_qglBegin (GL_LINES);
-  g_GLTable.m_pfn_qglVertex2i (pt[0].x,pt[0].y);
-  g_GLTable.m_pfn_qglVertex2i (pt[1].x,pt[1].y);
-  g_GLTable.m_pfn_qglEnd ();
-  switch(Plane)
-  {
-  case PLANE_XY0:
-  case PLANE_XY1:
-    texfont_write ("Y", pt[1].x-cyChar/2, pt[1].y+cyChar);
-    break;
-  default:
-    texfont_write ("Z", pt[1].x-cyChar/2, pt[1].y+cyChar);
-  }
-
-  // Denote fixed points with a 5x5 red rectangle
-  for(i=0; i<=NH; i++)
-  {
-    for(j=0; j<=NV; j++)
-    {
-      if(xyz[i][j].fixed)
-      {
-        x = Hll + i*dh;
-        y = Vll + j*dv;
-        rcBox.left   = X0G + (int)(SFG*(x-Hll)) - 2;
-        rcBox.top    = Y0G + (int)(SFG*(Vur-y)) + 2;
-        rcBox.right  = rcBox.left + 5;
-        rcBox.bottom = rcBox.top  - 5;
-
-        DRAW_QUAD (rcBox, 1,0,0);
-      }
-    }
-  }
-
-  // Denote currently selected point with a 5x5 green rectangle
-  if (NumVerticesSelected)
-  {
-    for(k=0; k<NumVerticesSelected; k++)
-    {
-      x = Hll + Vertex[k].i*dh;
-      y = Vll + Vertex[k].j*dv;
-      rcBox.left   = X0G + (int)(SFG*(x-Hll)) - 2;
-      rcBox.top    = Y0G + (int)(SFG*(Vur-y)) + 2;
-      rcBox.right  = rcBox.left + 5;
-      rcBox.bottom = rcBox.top  - 5;
-
-      DRAW_QUAD (rcBox, 0,1,0);
-    }
-  }
-
-  // Unmovable vertices
-  for(i=0; i<=NH; i++)
-  {
-    for(j=0; j<=NV; j++)
-    {
-      if(!CanEdit(i,j))
-      {
-        x = Hll + i*dh;
-        y = Vll + j*dv;
-        rcBox.left   = X0G + (int)(SFG*(x-Hll)) - 2;
-        rcBox.top    = Y0G + (int)(SFG*(Vur-y)) + 2;
-        rcBox.right  = rcBox.left + 5;
-        rcBox.bottom = rcBox.top  - 5;
-
-        DRAW_QUAD (rcBox, 1,1,0);
-      }
-    }
-  }
-
-  // Legend
-  rcBox.left   = rc.left + cxChar/2 - 2;
-  rcBox.top    = rc.top  - cyChar/2 - 2;
-  rcBox.right  = rcBox.left + 5;
-  rcBox.bottom = rcBox.top  - 5;
-  DRAW_QUAD (rcBox, 1,0,0);
-  texfont_write ("Fixed points", rcBox.right+cxChar,rcBox.top-4+cyChar/2);
-
-  rcBox.top    -= cyChar;
-  rcBox.bottom -= cyChar;
-  DRAW_QUAD (rcBox, 1,1,0);
-  texfont_write ("Not movable", rcBox.right+cxChar, rcBox.top-4+cyChar/2);
-
-  rcBox.top    -= cyChar;
-  rcBox.bottom -= cyChar;
-  DRAW_QUAD (rcBox, 0,1,0);
-  texfont_write ("Selected", rcBox.right+cxChar, rcBox.top-4+cyChar/2);
-}
-
-//=============================================================
-void GetScaleFactor(Rect rc)
-{
-#ifdef ISOMETRIC
-	double      h, w;
-
-	w = (double)(rc.right-rc.left+1) - cxChar;
-	h = (double)(rc.top-rc.bottom+1) - cxChar;
-
-	SF = w/( (XHi-XLo)*COSXA + (YHi-YLo)*COSYA );
-	SF = min(SF, h/( (XHi-XLo)*SINXA + (YHi-YLo)*SINYA + ZHi-ZLo ) );
-	// Center drawing
-	X0 = (int)(rc.left + rc.right - (int)(SF*( (XHi-XLo)*COSXA + (YHi-YLo)*COSYA )) )/2;
-	Y0 = (int)(rc.top + rc.bottom - (int)(SF*( (XHi-XLo)*SINXA + (YHi-YLo)*SINYA + ZHi-ZLo) ))/2;
-
-#else
-	double      h, w;
-
-	w = (double)(rc.right-rc.left+1) - cxChar;
-	h = (double)(rc.top-rc.bottom+1) - cxChar;
-
-	SF = w/(Hhi-Hlo);
-	SF = min(SF, h/(Vhi-Vlo) );
-	X0 = (int)(rc.left + rc.right - (int)(SF*(Hhi-Hlo)))/2;
-	Y0 = (int)(rc.top + rc.bottom + (int)(SF*(Vhi-Vlo)))/2;
-#endif
-}
-
-//=============================================================
-void Scale(Rect rc,XYZ xyz,Point *pt)
-{
-
-#ifdef ISOMETRIC
-
-	pt[0].x = X0 + (int)(SF*( (xyz.p[0]-XLo)*COSXA +
-                              (YHi-xyz.p[1])*COSYA   ));
-	pt[0].y = Y0 + (int)(SF*(  ZHi-xyz.p[2] +
-	                          (YHi-xyz.p[1])*SINYA +
-					          (XHi-xyz.p[0])*SINXA   ));
-#else
-	pt[0].x = X0 + (int)(SF*( xyz.pp[0] - Hlo ) );
-	pt[0].y = Y0 - (int)(SF*( Vhi - xyz.pp[1] ) );
-#endif
-
-}
-
-#ifndef ISOMETRIC
-/* ======================================================================= */
-void project(XYZ *v)
-{
-	// project a 3D point (x,y,z) onto view plane
-	double x, y, z, xa, ya, za;
-
-	x = v->p[0];
-	y = v->p[1];
-	z = v->p[2];
-
-	// yaw
-	xa = ct[0]*x - st[0]*z;
-	za = st[0]*x + ct[0]*z;
-
-	// roll
-	x  = ct[1]*xa + st[1]*y;
-	ya = ct[1]*y  - st[1]*xa;
-
-	// azimuth
-	z  = ct[2]*za - st[2]*ya;
-	y  = ct[2]*ya + st[2]*za;
-
-	// horizontal and vertical projections:
-//	v->pp[0] = D*x/z;
-//	v->pp[1] = D*y/z;
-	v->pp[0] = -y;
-	v->pp[1] =  x;
-	v->pp[2] =  z;
-
-	// NOTE: if perspective transformation is desired,
-	// set "persp" to the range from the surface,
-	// then:
-	// v->projected_h = -v->projected_h * persp/(v->projected_z-persp);
-	// v->projected_v = -v->projected_v * persp/(v->projected_z-persp);
-}
-/*=======================================================================*/
-void evaluate()
-{
-	int i, j;
-	XYZ v[4];
-	
-	if(elevation > PI) elevation -= 2.*PI;
-	roll = elevation * sin(azimuth);
-	yaw  = 1.5*PI + elevation*cos(azimuth);
-
-	//	Find angles from midpoint to viewpoint:
-	st[0] = sin(yaw);
-	st[1] = sin(roll);
-	st[2] = sin(azimuth);
-	ct[0] = cos(yaw);
-	ct[1] = cos(roll);
-	ct[2] = cos(azimuth);
-
-	for(i=0; i<=NH; i++)
-	{
-		for(j=0; j<=NV; j++)
-		{
-			project(&xyz[i][j]);
-		}
-	}
-
-	Hhi = xyz[0][0].pp[0];
-	Hlo = Hhi;
-	Vhi = xyz[0][0].pp[1];
-	Vlo = Vhi;
-	for(i=0; i<=NH; i++)
-	{
-		for(j=0; j<=NV; j++)
-		{
-			Hlo = min(Hlo,xyz[i][j].pp[0]);
-			Hhi = max(Hhi,xyz[i][j].pp[0]);
-			Vlo = min(Vlo,xyz[i][j].pp[1]);
-			Vhi = max(Vhi,xyz[i][j].pp[1]);
-		}
-	}
-
-	// Include backface in min-max
-	VectorCopy(xyz[ 0][ 0].p,v[0].p);
-	VectorCopy(xyz[NH][ 0].p,v[1].p);
-	VectorCopy(xyz[NH][NV].p,v[2].p);
-	VectorCopy(xyz[ 0][NV].p,v[3].p);
-	switch(Plane)
-	{
-	case PLANE_XZ0:
-	case PLANE_XZ1:
-		v[0].p[1] = backface;
-		v[1].p[1] = v[0].p[1];
-		v[2].p[1] = v[0].p[1];
-		v[3].p[1] = v[0].p[1];
-		break;
-	case PLANE_YZ0:
-	case PLANE_YZ1:
-		v[0].p[0] = backface;
-		v[1].p[0] = v[0].p[0];
-		v[2].p[0] = v[0].p[0];
-		v[3].p[0] = v[0].p[0];
-		break;
-	default:
-		v[0].p[2] = backface;
-		v[1].p[2] = v[0].p[2];
-		v[2].p[2] = v[0].p[2];
-		v[3].p[2] = v[0].p[2];
-	}
-	for(i=0; i<=3; i++)
-	{
-		project(&v[i]);
-		Hlo = min(Hlo,v[i].pp[0]);
-		Hhi = max(Hhi,v[i].pp[0]);
-		Vlo = min(Vlo,v[i].pp[1]);
-		Vhi = max(Vhi,v[i].pp[1]);
-	}
-
-}
-#endif