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+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/graph/viewman makeGraph.c}
+\author{The Axiom Team}
+\maketitle
+\begin{abstract}
+\end{abstract}
+\eject
+\tableofcontents
+\eject
+\section{License}
+<<license>>=
+/*
+Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ - Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+
+ - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+ names of its contributors may be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+@
+<<*>>=
+<<license>>
+
+#define _MAKEGRAPH_C
+#include "axiom-c-macros.h"
+#include "useproto.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "viewman.h"
+
+#include "sockio-c.H1"
+#include "makeGraph.H1"
+
+graphStruct *
+#ifdef _NO_PROTO
+makeGraphFromSpadData()
+#else
+makeGraphFromSpadData(void)
+#endif
+{
+
+ graphStruct *graphData;
+ pointListStruct *pL;
+ pointStruct *p;
+ int i,j;
+
+ if (!(graphData = (graphStruct *)malloc(sizeof(graphStruct)))) {
+ fprintf(stderr,"The viewport manager ran out of memory trying to create a new graph (graphStruct).\n");
+ exit(-1);
+ }
+
+ graphData->xmin = get_float(spadSock); /* after everything is normalized */
+ graphData->xmax = get_float(spadSock);
+ graphData->ymin = get_float(spadSock); /* view2D */
+ graphData->ymax = get_float(spadSock);
+
+ graphData->xNorm = 1/(graphData->xmax - graphData->xmin);
+ graphData->yNorm = 1/(graphData->ymax - graphData->ymin);
+
+ graphData->spadUnitX = get_float(spadSock);
+ graphData->spadUnitY = get_float(spadSock);
+
+ graphData->unitX = graphData->spadUnitX * graphData->xNorm;
+ graphData->unitY = graphData->spadUnitY * graphData->yNorm;
+
+ graphData->originX = -graphData->xmin * graphData->xNorm - 0.5;
+ graphData->originY = -graphData->ymin * graphData->yNorm - 0.5;
+
+
+ graphData->numberOfLists = get_int(spadSock);
+ if (!(pL = (pointListStruct *)malloc(graphData->numberOfLists * sizeof(pointListStruct)))) {
+ fprintf(stderr,"The viewport manager ran out of memory trying to create a new graph (pointListStruct).\n");
+ exit(-1);
+ }
+ graphData->listOfListsOfPoints = pL;
+
+ for (i=0; i<graphData->numberOfLists; i++) {
+
+ pL->numberOfPoints = get_int(spadSock);
+ if (!(p = (pointStruct *)malloc(pL->numberOfPoints * sizeof(pointStruct)))) {
+ fprintf(stderr,"The viewport manager ran out of memory trying to create a new graph (pointStruct).\n");
+ exit(-1);
+ }
+ pL->listOfPoints = p; /** point to current point list **/
+
+ for (j=0; j<pL->numberOfPoints; j++) {
+ p->x = get_float(spadSock); /* get numbers from AXIOM */
+ p->y = get_float(spadSock);
+ p->hue = get_float(spadSock) - 1; /* make zero based */
+ p->shade = get_float(spadSock) - 1;
+ /* normalize to range [-0.5..0.5] */
+ p->x = (p->x - graphData->xmin) * graphData->xNorm - 0.5;
+ p->y = (p->y - graphData->ymin) * graphData->yNorm - 0.5;
+ p++;
+ }
+ /* for now, getting hue, shade - do hue * totalHues + shade */
+ pL->pointColor = get_int(spadSock);
+ pL->lineColor = get_int(spadSock);
+ pL->pointSize = get_int(spadSock);
+ pL++; /** advance to next point list **/
+ }
+
+
+ graphData->key = graphKey++;
+
+ send_int(spadSock,(graphKey-1)); /* acknowledge to spad */
+
+
+ return(graphData);
+
+}
+
+
+void
+#ifdef _NO_PROTO
+discardGraph (theGraph)
+ graphStruct *theGraph;
+#else
+discardGraph (graphStruct *theGraph)
+#endif
+{
+
+ pointListStruct *pL;
+ int j;
+
+ for (j=0, pL=theGraph->listOfListsOfPoints; j<theGraph->numberOfLists; j++,pL++)
+ free(pL->listOfPoints);
+ free(pL);
+ free(theGraph);
+
+}
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}