mapfile.h 

// add these defines. I added them near the bottom. About line 222.

#define COLORITEM 1200
#define OUTLINECOLORITEM 1201
#define SYMBOLITEM 1202

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mapsymbol.h

#define MS_MAXSYMBOLS 1024 //change line 59 to allow for more symbols Obviously this is a little overboard...

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maplexer.l  

// add items to maplexer.l line 136~. I added them above the COLORRANGE items.
<INITIAL,OBJECT_STRING>coloritem              { return(COLORITEM); }
<INITIAL,OBJECT_STRING>outlinecoloritem       { return(OUTLINECOLORITEM); }
<INITIAL,OBJECT_STRING>symbolitem              { return(SYMBOLITEM); }

When make is run maplexer.c will be remade. But flex (Fast Lexical Analyzer)
must be installed on the system before running make or these changes occur.

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maplayer.c 

//line 451
	for(i=0; i<layer->numclasses; i++) {
		for(j=0; j<layer->class[i].numstyles; j++) {
			if(layer->class[i].styles[j].angleitem) nt++;
			if(layer->class[i].styles[j].sizeitem) nt++;
			if(layer->class[i].styles[j].rangeitem) nt++;
			if(layer->class[i].styles[j].coloritem) nt++;        //<------Append this
			if(layer->class[i].styles[j].outlinecoloritem) nt++; //<------Append this
			if(layer->class[i].styles[j].symbolitem) nt++;       //<------Append this
		}
	}

//line 535 replace the for loop with this one
			for(i=0; i<layer->numclasses; i++) {
				for(j=0; j<layer->class[i].numstyles; j++) {
					styleObj *style = &(layer->class[i].styles[j]);
					if(style->angleitem) style->angleitemindex = string2list(layer->items, &(layer->numitems), style->angleitem);
					if(style->sizeitem) style->sizeitemindex = string2list(layer->items, &(layer->numitems), style->sizeitem); 
					if(style->rangeitem) style->rangeitemindex = string2list(layer->items, &(layer->numitems), style->rangeitem); 
					if(style->coloritem) style->coloritemindex = string2list(layer->items, &(layer->numitems), style->coloritem);
					if(style->outlinecoloritem) style->outlinecoloritemindex = string2list(layer->items, &(layer->numitems), style->outlinecoloritem);
					if(style->symbolitem) style->symbolitemindex = string2list(layer->items, &(layer->numitems), style->symbolitem);
				}
			}

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mapfile.c

// initStyle(styleObj *style) append the following at about line 1843
  style->coloritem = NULL;
  style->coloritemindex = -1;
  style->outlinecoloritem = NULL;
  style->outlinecoloritemindex = -1;
  style->symbolitem = NULL;
  style->symbolitemindex = -1;

// loadStyle(styleObj *style) append the following at about line 1882
    case(COLORITEM):
      if(getString(&style->coloritem) == MS_FAILURE) return(-1);
      break;
    case(OUTLINECOLORITEM):
      if(getString(&style->outlinecoloritem) == MS_FAILURE) return(-1);
      break;
    case(SYMBOLITEM):
      if(getString(&style->symbolitem) == MS_FAILURE) return(-1);
      break;

// freeStyle() append the following at about line 1970
  msFree(style->coloritem);
  msFree(style->outlinecoloritem);
  msFree(style->symbolitem);

// writeStyle(styleObj *style, FILE *stream) append the following at about line 2004
  if(style->coloritem) {
    fprintf(stream, "        COLORITEM \"%s\"\n", style->coloritem);
  }
  if(style->outlinecoloritem) {
    fprintf(stream, "        OUTLINECOLORITEM \"%s\"\n", style->outlinecoloritem);
  }
  if(style->symbolitem) {
    fprintf(stream, "        SYMBOLITEM \"%s\"\n", style->symbolitem);
  }

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mappostgis.c

//About Line 1179
//Change this:
                 case MS_LAYER_CIRCLE:
                    msDebug( "Ignoring MS_LAYER_RASTER in mappostgis.c\n" );
                    break;
//To this:
                 case MS_LAYER_CIRCLE:
                    result = force_to_lines(wkb, shape);
                    break;

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mapdraw.c
//At about line 1353 added a new variable. This variable is a point guaranteed to be on the circle.
//I use this to calculate the radius

  pointObj center, pntOnCircle; /* circle origin */

// msDrawShape(mapObj *map, layerObj *layer, shapeObj *shape, imageObj *image, int style) 
// line 1378 replace the for loop with this one
	for(s=0; s<layer->class[c].numstyles; s++) {
		styleObj *style = &(layer->class[c].styles[s]);
		if (style->rangeitem !=  NULL) {
			msShapeToRange(style, shape);
		}
		if (style->coloritem !=  NULL) {
			msShapeToColor(style->coloritemindex, &(style->color), shape);
		}
		if (style->outlinecoloritem !=  NULL) {
			msShapeToColor(style->outlinecoloritemindex, &(style->outlinecolor), shape);
		}
		if (style->symbolitem !=  NULL) {
			if((style->symbol = msGetSymbolIndex(&(map->symbolset), shape->values[style->symbolitemindex], MS_TRUE)) == -1) {
				msSetError(MS_EOFERR, "Undefined symbol.", "loadClassString()");
			}
		}
	}

//At line about line 1393 I changed the hard != to <
//This allows the line to be a multilinestring and also the line can contain the bounding information if you want

    if(shape->numlines < 1) return(MS_SUCCESS); /* invalid shape */
    if(shape->line[0].numpoints < 2) return(MS_SUCCESS); /* invalid shape */

//Removed this line and placed it into the else case below

    r = MS_ABS(center.x - shape->line[0].point[0].x);

//Add this. This sets the point on the circle to the X coordinate of the first  
//point on the line and the Y coordinate to the same as the center Y coordinate.
    pntOnCircle.x = shape->line[0].point[0].x;
    pntOnCircle.y = center.y;

//Changed this:
    if(layer->project && msProjectionsDiffer(&(layer->projection), &(map->projection)))
       msProjectPoint(&layer->projection, &map->projection, &center);
    else
       layer->project = MS_FALSE;

//To this:
    if(layer->project && msProjectionsDiffer(&(layer->projection), &(map->projection))) {
       msProjectPoint(&layer->projection, &map->projection, &center);
       msProjectPoint(&layer->projection, &map->projection, &pntOnCircle);
    } else {
       layer->project = MS_FALSE;
    }
//The added code projects the point on the circle if there is a projection object.
//Before this the radius was never projected and therefore screwed if there was a projection.

//Replace this:
      r /= map->cellsize;      
//With this:
      pntOnCircle.x = MS_MAP2IMAGE_X(pntOnCircle.x, map->extent.minx, map->cellsize);      
      r = MS_ABS(center.x-pntOnCircle.x);
//This transforms the translated point on the circle into image coordinates and calculates the radius using those values.

//Append these 2 functions. I appended at line about line 2176
int msValueToColor(colorObj *color, char *fieldStr) {
	char *rgb[3]={0, 0, 0}, flg=0;
	int i=0, cIndex=0, r, g, b;

	while(fieldStr[i]) {
		if(!flg && fieldStr[i] >= '0' && fieldStr[i] <= '9') {
			if(cIndex > 2) break;
			rgb[cIndex++] = &fieldStr[i];
			flg = 1;
		} else if(flg && (fieldStr[i] < '0' || fieldStr[i] > '9')) {
			fieldStr[i] = 0;
			flg = 0;
		}
		i++;
	}
	r = rgb[0]?(int)atof(rgb[0]):0;
	if(r > 255) r = 255;
	if(r < 0) r = 0;
	g = rgb[1]?(int)atof(rgb[1]):0;
	if(g > 255) g = 255;
	if(g < 0) g = 0;
	b = rgb[2]?(int)atof(rgb[2]):0;
	if(b > 255) b = 255;
	if(b < 0) b = 0;
	color->red = r;
	color->green = g;
	color->blue = b;
	color->pen = MS_PEN_UNSET; /*so it will recalculate pen*/
	return MS_SUCCESS;
}

int msShapeToColor(int index, colorObj *color, shapeObj *shape) {
	char* fieldStr;
	fieldStr = shape->values[index];
	if (fieldStr == NULL) {/*if there's not value, bail*/
		return MS_FAILURE;
	}
	return msValueToColor(color, fieldStr);
}

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map.h

// at about line 663 append the following
  char *coloritem;
  int coloritemindex;

  char *outlinecoloritem;
  int outlinecoloritemindex;

  char *symbolitem;
  int symbolitemindex;

// line 1679 append the following
MS_DLL_EXPORT int msShapeToColor(int index, colorObj *color, shapeObj *shape);
MS_DLL_EXPORT int msValueToColor(colorObj *color, char *fieldStr);

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