Esempio n. 1
0
char *FLTGetSpatialComparisonCommonExpression(FilterEncodingNode *psNode, layerObj *lp)
{
  char *pszExpression = NULL;
  shapeObj *psQueryShape = NULL;
  double dfDistance = -1;
  int nUnit = -1, nLayerUnit = -1;
  char *pszWktText = NULL;
  char szBuffer[256];
  char *pszTmp=NULL;
  projectionObj sProjTmp;
  rectObj sQueryRect;
  shapeObj *psTmpShape=NULL;
  int bBBoxQuery = 0;
  int bAlreadyReprojected = 0;

  if (psNode == NULL || lp == NULL)
    return NULL;

  if (psNode->eType != FILTER_NODE_TYPE_SPATIAL)
    return NULL;

  /* get the shape */
  if (FLTIsBBoxFilter(psNode)) {
    char szPolygon[512];
    FLTGetBBOX(psNode, &sQueryRect);

    snprintf(szPolygon, sizeof(szPolygon),
             "POLYGON((%.18f %.18f,%.18f %.18f,%.18f %.18f,%.18f %.18f,%.18f %.18f))",
             sQueryRect.minx, sQueryRect.miny,
             sQueryRect.minx, sQueryRect.maxy,
             sQueryRect.maxx, sQueryRect.maxy,
             sQueryRect.maxx, sQueryRect.miny,
             sQueryRect.minx, sQueryRect.miny);

    psTmpShape = msShapeFromWKT(szPolygon);

    /* 
    ** This is a horrible hack to deal with world-extent requests and
    ** reprojection. msProjectRect() detects if reprojection from longlat to 
    ** projected SRS, and in that case it transforms the bbox to -1e-15,-1e-15,1e15,1e15
    ** to ensure that all features are returned.
    **
    ** Make wfs_200_cite_filter_bbox_world.xml and wfs_200_cite_postgis_bbox_world.xml pass
    */
    if (fabs(sQueryRect.minx - -180.0) < 1e-5 &&
        fabs(sQueryRect.miny - -90.0) < 1e-5 &&
        fabs(sQueryRect.maxx - 180.0) < 1e-5 &&
        fabs(sQueryRect.maxy - 90.0) < 1e-5)
    {
      if (lp->projection.numargs > 0) {
        if (psNode->pszSRS)
          msInitProjection(&sProjTmp);
        if (psNode->pszSRS) {
          /* Use the non EPSG variant since axis swapping is done in FLTDoAxisSwappingIfNecessary */
          if (msLoadProjectionString(&sProjTmp, psNode->pszSRS) == 0) {
            msProjectRect(&sProjTmp, &lp->projection, &sQueryRect);
          }
        } else if (lp->map->projection.numargs > 0)
          msProjectRect(&lp->map->projection, &lp->projection, &sQueryRect);
        if (psNode->pszSRS)
          msFreeProjection(&sProjTmp);
      }
      if (sQueryRect.minx <= -1e14) {
        msFreeShape(psTmpShape);
        msFree(psTmpShape);
        psTmpShape = (shapeObj*) msSmallMalloc(sizeof(shapeObj));
        msInitShape(psTmpShape);
        msRectToPolygon(sQueryRect, psTmpShape);
        bAlreadyReprojected = 1;
      }
    }

    bBBoxQuery = 1;
  } else {
    /* other geos type operations */

    /* project shape to layer projection. If the proj is not part of the filter query,
      assume that the cooredinates are in the map projection */

    psQueryShape = FLTGetShape(psNode, &dfDistance, &nUnit);

    if ((strcasecmp(psNode->pszValue, "DWithin") == 0 || strcasecmp(psNode->pszValue, "Beyond") == 0 ) && dfDistance > 0) {
      nLayerUnit = lp->units;
      if(nLayerUnit == -1) nLayerUnit = GetMapserverUnitUsingProj(&lp->projection);
      if(nLayerUnit == -1) nLayerUnit = lp->map->units;
      if(nLayerUnit == -1) nLayerUnit = GetMapserverUnitUsingProj(&lp->map->projection);

      if (nUnit >= 0 && nUnit != nLayerUnit)
        dfDistance *= msInchesPerUnit(nUnit,0)/msInchesPerUnit(nLayerUnit,0); /* target is layer units */
    }

    psTmpShape = psQueryShape;
  }

  if (psTmpShape) {

    /*
    ** target is layer projection
    */
    if (!bAlreadyReprojected && lp->projection.numargs > 0) {
      if (psNode->pszSRS)
        msInitProjection(&sProjTmp);
      if (psNode->pszSRS) {
        /* Use the non EPSG variant since axis swapping is done in FLTDoAxisSwappingIfNecessary */
        if (msLoadProjectionString(&sProjTmp, psNode->pszSRS) == 0) {
          msProjectShape(&sProjTmp, &lp->projection, psTmpShape);
        }
      } else if (lp->map->projection.numargs > 0)
        msProjectShape(&lp->map->projection, &lp->projection, psTmpShape);
      if (psNode->pszSRS)
        msFreeProjection(&sProjTmp);
    }

    /* function name */
    if (bBBoxQuery) {
      sprintf(szBuffer, "%s", "intersects");
    } else {
      if (strncasecmp(psNode->pszValue, "intersect", 9) == 0)
        sprintf(szBuffer, "%s", "intersects");
      else {
        pszTmp = msStrdup(psNode->pszValue);
        msStringToLower(pszTmp);
        sprintf(szBuffer, "%s", pszTmp);
        msFree(pszTmp);
      }
    }
    pszExpression = msStringConcatenate(pszExpression, szBuffer);
    pszExpression = msStringConcatenate(pszExpression, "(");

    /* geometry binding */
    sprintf(szBuffer, "%s", "[shape]");
    pszExpression = msStringConcatenate(pszExpression, szBuffer);
    pszExpression = msStringConcatenate(pszExpression, ",");

    /* filter geometry */
    pszWktText = msGEOSShapeToWKT(psTmpShape);
    sprintf(szBuffer, "%s", "fromText('");
    pszExpression = msStringConcatenate(pszExpression, szBuffer);
    pszExpression = msStringConcatenate(pszExpression, pszWktText);
    sprintf(szBuffer, "%s", "')");
    pszExpression = msStringConcatenate(pszExpression, szBuffer);
    msGEOSFreeWKT(pszWktText);

    /* (optional) beyond/dwithin distance, always 0.0 since we apply the distance as a buffer earlier */
    if ((strcasecmp(psNode->pszValue, "DWithin") == 0 || strcasecmp(psNode->pszValue, "Beyond") == 0)) {
      // pszExpression = msStringConcatenate(pszExpression, ",0.0");
      sprintf(szBuffer, ",%g", dfDistance);
      pszExpression = msStringConcatenate(pszExpression, szBuffer);      
    }

    /* terminate the function */
    pszExpression = msStringConcatenate(pszExpression, ") = TRUE");
  }

  /*
  ** Cleanup
  */
  if (bBBoxQuery) {
    msFreeShape(psTmpShape);
    msFree(psTmpShape);
  }

  return pszExpression;
}
Esempio n. 2
0
int msAddLabelGroup(mapObj *map, int layerindex, int classindex, shapeObj *shape, pointObj *point, double featuresize)
{
  int i, priority, numactivelabels=0;
  labelCacheSlotObj *cacheslot;

  labelCacheMemberObj *cachePtr=NULL;
  layerObj *layerPtr=NULL;
  classObj *classPtr=NULL;

  layerPtr = (GET_LAYER(map, layerindex)); /* set up a few pointers for clarity */
  classPtr = GET_LAYER(map, layerindex)->class[classindex];

  if(classPtr->numlabels == 0) return MS_SUCCESS; /* not an error just nothing to do */
  for(i=0; i<classPtr->numlabels; i++) {
    if(classPtr->labels[i]->status == MS_ON) {
      numactivelabels++;
    }
  }
  if(numactivelabels == 0) return MS_SUCCESS;

  /* if the number of labels is 1 then call msAddLabel() accordingly */
  if(numactivelabels == 1) {
    for(i=0; i<classPtr->numlabels; i++) {
      if(classPtr->labels[i]->status == MS_ON)
        return msAddLabel(map, classPtr->labels[i], layerindex, classindex, shape, point, NULL, featuresize);
    }
  }

  if (layerPtr->type == MS_LAYER_ANNOTATION && (classPtr->numlabels > 1 || classPtr->leader.maxdistance)) {
    msSetError(MS_MISCERR, "Multiple Labels and/or LEADERs are not supported with annotation layers", "msAddLabelGroup()");
    return MS_FAILURE;
  }

  /* check that the label intersects the layer mask */
  if(layerPtr->mask) {
    int maskLayerIdx = msGetLayerIndex(map,layerPtr->mask);
    layerObj *maskLayer = GET_LAYER(map,maskLayerIdx);
    unsigned char *alphapixptr;
    if(maskLayer->maskimage && MS_IMAGE_RENDERER(maskLayer->maskimage)->supports_pixel_buffer) {
      rasterBufferObj rb;
      int x,y;
      memset(&rb,0,sizeof(rasterBufferObj));
      MS_IMAGE_RENDERER(maskLayer->maskimage)->getRasterBufferHandle(maskLayer->maskimage,&rb);
      x = MS_NINT(point->x);
      y = MS_NINT(point->y);
      /* Using label repeatdistance, we might have a point with x/y below 0. See #4764 */
      if (x >= 0 && x < rb.width && y >= 0 && y < rb.height) {
#ifdef USE_GD
        if(rb.type == MS_BUFFER_BYTE_RGBA) {
          alphapixptr = rb.data.rgba.a+rb.data.rgba.row_step*y + rb.data.rgba.pixel_step*x;
          if(!*alphapixptr) {
            /* label point does not intersect mask */
            return MS_SUCCESS;
          }
        } else {
          if(!gdImageGetPixel(rb.data.gd_img,x,y))
            return MS_SUCCESS;
        }
#else
        assert(rb.type == MS_BUFFER_BYTE_RGBA);
        alphapixptr = rb.data.rgba.a+rb.data.rgba.row_step*y + rb.data.rgba.pixel_step*x;
        if(!*alphapixptr) {
          /* label point does not intersect mask */
          return MS_SUCCESS;
        }
#endif
      }
    } else {
      msSetError(MS_MISCERR, "Layer (%s) references references a mask layer, but the selected renderer does not support them", "msAddLabelGroup()", layerPtr->name);
      return (MS_FAILURE);
    }
  }



  /* Validate label priority value and get ref on label cache for it */
  priority = classPtr->labels[0]->priority; /* take priority from the first label */
  if (priority < 1)
    priority = 1;
  else if (priority > MS_MAX_LABEL_PRIORITY)
    priority = MS_MAX_LABEL_PRIORITY;

  cacheslot = &(map->labelcache.slots[priority-1]);

  if(cacheslot->numlabels == cacheslot->cachesize) { /* just add it to the end */
    cacheslot->labels = (labelCacheMemberObj *) realloc(cacheslot->labels, sizeof(labelCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT));
    MS_CHECK_ALLOC(cacheslot->labels, sizeof(labelCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT), MS_FAILURE);
    cacheslot->cachesize += MS_LABELCACHEINCREMENT;
  }

  cachePtr = &(cacheslot->labels[cacheslot->numlabels]);

  cachePtr->layerindex = layerindex; /* so we can get back to this *raw* data if necessary */
  cachePtr->classindex = classindex;
  if(shape) {
    cachePtr->shapetype = shape->type;
  } else {
    cachePtr->shapetype = MS_SHAPE_POINT;
  }

  cachePtr->point = *point; /* the actual label point */
  cachePtr->labelpath = NULL;

  cachePtr->leaderline = NULL;
  cachePtr->leaderbbox = NULL;

  // cachePtr->text = msStrdup(string); /* the actual text */

  /* TODO: perhaps we can get rid of this next section and just store a marker size? Why do we cache the styles for a point layer? */

  /* copy the styles (only if there is an accompanying marker)
   * We cannot simply keep refs because the rendering code  might alters some members of the style objects
   */
  cachePtr->styles = NULL;
  cachePtr->numstyles = 0;
  if(layerPtr->type == MS_LAYER_ANNOTATION && classPtr->numstyles > 0) {
    cachePtr->numstyles = classPtr->numstyles;
    cachePtr->styles = (styleObj *) msSmallMalloc(sizeof(styleObj)*classPtr->numstyles);
    if (classPtr->numstyles > 0) {
      for(i=0; i<classPtr->numstyles; i++) {
        initStyle(&(cachePtr->styles[i]));
        msCopyStyle(&(cachePtr->styles[i]), classPtr->styles[i]);
      }
    }
  }

  /*
  ** copy the labels (we are guaranteed to have more than one):
  **   we cannot simply keep refs because the rendering code alters some members of the style objects
  */

  cachePtr->numlabels = 0;
  cachePtr->labels = (labelObj *) msSmallMalloc(sizeof(labelObj)*numactivelabels);
  for(i=0; i<classPtr->numlabels; i++) {
    if(classPtr->labels[i]->status == MS_OFF) continue;
    initLabel(&(cachePtr->labels[cachePtr->numlabels]));
    msCopyLabel(&(cachePtr->labels[cachePtr->numlabels]), classPtr->labels[i]);
    cachePtr->numlabels++;
  }
  assert(cachePtr->numlabels == numactivelabels);

  cachePtr->markerid = -1;

  cachePtr->featuresize = featuresize;

  //cachePtr->poly = (shapeObj *) msSmallMalloc(sizeof(shapeObj));
  //msInitShape(cachePtr->poly);
  cachePtr->poly = NULL;

  cachePtr->status = MS_FALSE;

  if(layerPtr->type == MS_LAYER_POINT && classPtr->numstyles > 0) {
    /* cache the marker placement, it's already on the map */
    /* TO DO: at the moment only checks the bottom style, perhaps should check all of them */
    /* #2347: after RFC-24 classPtr->styles could be NULL so we check it */
    rectObj rect;
    double w, h;
    if(msGetMarkerSize(&map->symbolset, classPtr->styles[0], &w, &h, layerPtr->scalefactor) != MS_SUCCESS)
      return(MS_FAILURE);

    if(cacheslot->nummarkers == cacheslot->markercachesize) { /* just add it to the end */
      cacheslot->markers = (markerCacheMemberObj *) realloc(cacheslot->markers, sizeof(markerCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT));
      MS_CHECK_ALLOC(cacheslot->markers, sizeof(markerCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT), MS_FAILURE);
      cacheslot->markercachesize+=MS_LABELCACHEINCREMENT;
    }

    i = cacheslot->nummarkers;

    cacheslot->markers[i].poly = (shapeObj *) msSmallMalloc(sizeof(shapeObj));
    msInitShape(cacheslot->markers[i].poly);

    rect.minx = (point->x - .5 * w);
    rect.miny = (point->y - .5 * h);
    rect.maxx = rect.minx + (w-1);
    rect.maxy = rect.miny + (h-1);
    msRectToPolygon(rect, cacheslot->markers[i].poly);
    cacheslot->markers[i].id = cacheslot->numlabels;

    cachePtr->markerid = i;

    cacheslot->nummarkers++;
  }

  cacheslot->numlabels++;

  /* Maintain main labelCacheObj.numlabels only for backwards compatibility */
  map->labelcache.numlabels++;

  return(MS_SUCCESS);
}
Esempio n. 3
0
int msAddLabel(mapObj *map, labelObj *label, int layerindex, int classindex, shapeObj *shape, pointObj *point, labelPathObj *labelpath, double featuresize)
{
  int i;
  labelCacheSlotObj *cacheslot;

  labelCacheMemberObj *cachePtr=NULL;
  layerObj *layerPtr=NULL;
  classObj *classPtr=NULL;

  if(!label) return(MS_FAILURE); // RFC 77 TODO: set a proper message
  if(label->status == MS_OFF) return(MS_SUCCESS); /* not an error */
  if(!label->annotext) {
    /* check if we have a labelpnt style */
    for(i=0; i<label->numstyles; i++) {
      if(label->styles[i]->_geomtransform.type == MS_GEOMTRANSFORM_LABELPOINT)
        break;
    }
    if(i==label->numstyles) {
      /* label has no text or marker symbols */
      return MS_SUCCESS;
    }
  }

  layerPtr = (GET_LAYER(map, layerindex)); /* set up a few pointers for clarity */
  classPtr = GET_LAYER(map, layerindex)->class[classindex];

  if(classPtr->leader.maxdistance) {
    if (layerPtr->type == MS_LAYER_ANNOTATION) {
      msSetError(MS_MISCERR, "LEADERs are not supported on annotation layers", "msAddLabel()");
      return MS_FAILURE;
    }
    if(labelpath) {
      msSetError(MS_MISCERR, "LEADERs are not supported on ANGLE FOLLOW labels", "msAddLabel()");
      return MS_FAILURE;
    }
  }
  /* check that the label intersects the layer mask */

  if (layerPtr->mask) {
    int maskLayerIdx = msGetLayerIndex(map, layerPtr->mask);
    layerObj *maskLayer = GET_LAYER(map, maskLayerIdx);
    unsigned char *alphapixptr;
    if (maskLayer->maskimage && MS_IMAGE_RENDERER(maskLayer->maskimage)->supports_pixel_buffer) {
      rasterBufferObj rb;
      memset(&rb, 0, sizeof (rasterBufferObj));
      MS_IMAGE_RENDERER(maskLayer->maskimage)->getRasterBufferHandle(maskLayer->maskimage, &rb);
      if (point) {
        int x = MS_NINT(point->x);
        int y = MS_NINT(point->y);
        /* Using label repeatdistance, we might have a point with x/y below 0. See #4764 */
        if (x >= 0 && x < rb.width && y >= 0 && y < rb.height) {
#ifdef USE_GD
          if(rb.type == MS_BUFFER_BYTE_RGBA) {
            alphapixptr = rb.data.rgba.a+rb.data.rgba.row_step*y + rb.data.rgba.pixel_step*x;
            if(!*alphapixptr) {
              /* label point does not intersect mask */
              return MS_SUCCESS;
            }
          } else {
            if(!gdImageGetPixel(rb.data.gd_img,x,y)) {
              return MS_SUCCESS;
            }
          }
#else
          assert(rb.type == MS_BUFFER_BYTE_RGBA);
          alphapixptr = rb.data.rgba.a+rb.data.rgba.row_step*y + rb.data.rgba.pixel_step*x;
          if(!*alphapixptr) {
            /* label point does not intersect mask */
            return MS_SUCCESS;
          }
#endif
        }
      } else if (labelpath) {
        int i = 0;
        for (i = 0; i < labelpath->path.numpoints; i++) {
          int x = MS_NINT(labelpath->path.point[i].x);
          int y = MS_NINT(labelpath->path.point[i].y);
          /* Using label repeatdistance, we might have a point with x/y below 0. See #4764 */
          if (x >= 0 && x < rb.width && y >= 0 && y < rb.height) {
#ifdef USE_GD
            if (rb.type == MS_BUFFER_BYTE_RGBA) {
              alphapixptr = rb.data.rgba.a + rb.data.rgba.row_step * y + rb.data.rgba.pixel_step*x;
              if (!*alphapixptr) {
                /* label point does not intersect mask */
                msFreeLabelPathObj(labelpath);
                return MS_SUCCESS;
              }
            } else {
              if (!gdImageGetPixel(rb.data.gd_img, x, y)) {
                msFreeLabelPathObj(labelpath);
                return MS_SUCCESS;
              }
            }
#else
            assert(rb.type == MS_BUFFER_BYTE_RGBA);
            alphapixptr = rb.data.rgba.a + rb.data.rgba.row_step * y + rb.data.rgba.pixel_step*x;
            if (!*alphapixptr) {
              /* label point does not intersect mask */
              msFreeLabelPathObj(labelpath);
              return MS_SUCCESS;
            }
#endif
          }
        }
      }
    } else {
      msSetError(MS_MISCERR, "Layer (%s) references references a mask layer, but the selected renderer does not support them", "msAddLabel()", layerPtr->name);
      return (MS_FAILURE);
    }
  }



  /* Validate label priority value and get ref on label cache for it */
  if (label->priority < 1)
    label->priority = 1;
  else if (label->priority > MS_MAX_LABEL_PRIORITY)
    label->priority = MS_MAX_LABEL_PRIORITY;

  cacheslot = &(map->labelcache.slots[label->priority-1]);

  if(cacheslot->numlabels == cacheslot->cachesize) { /* just add it to the end */
    cacheslot->labels = (labelCacheMemberObj *) realloc(cacheslot->labels, sizeof(labelCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT));
    MS_CHECK_ALLOC(cacheslot->labels, sizeof(labelCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT), MS_FAILURE);
    cacheslot->cachesize += MS_LABELCACHEINCREMENT;
  }

  cachePtr = &(cacheslot->labels[cacheslot->numlabels]);

  cachePtr->layerindex = layerindex; /* so we can get back to this *raw* data if necessary */
  cachePtr->classindex = classindex;
  if(shape) {
    cachePtr->shapetype = shape->type;
  } else {
    cachePtr->shapetype = MS_SHAPE_POINT;
  }
  cachePtr->leaderline = NULL;
  cachePtr->leaderbbox = NULL;

  /* Store the label point or the label path (Bug #1620) */
  if ( point ) {
    cachePtr->point = *point; /* the actual label point */
    cachePtr->labelpath = NULL;
  } else {
    assert(labelpath);
    cachePtr->labelpath = labelpath;
    /* Use the middle point of the labelpath for mindistance calculations */
    cachePtr->point = labelpath->path.point[labelpath->path.numpoints / 2];
  }

  /* TODO: perhaps we can get rid of this next section and just store a marker size? Why do we cache the styles for a point layer? */

  /* copy the styles (only if there is an accompanying marker)
   * We cannot simply keeep refs because the rendering code alters some members of the style objects
   */
  cachePtr->styles = NULL;
  cachePtr->numstyles = 0;
  if(layerPtr->type == MS_LAYER_ANNOTATION && classPtr->numstyles > 0) {
    cachePtr->numstyles = classPtr->numstyles;
    cachePtr->styles = (styleObj *) msSmallMalloc(sizeof(styleObj)*classPtr->numstyles);
    if (classPtr->numstyles > 0) {
      for(i=0; i<classPtr->numstyles; i++) {
        initStyle(&(cachePtr->styles[i]));
        msCopyStyle(&(cachePtr->styles[i]), classPtr->styles[i]);
      }
    }
  }

  /* copy the label */
  cachePtr->numlabels = 1;
  cachePtr->labels = (labelObj *) msSmallMalloc(sizeof(labelObj));
  initLabel(cachePtr->labels);
  msCopyLabel(cachePtr->labels, label);

  cachePtr->markerid = -1;

  cachePtr->featuresize = featuresize;

  //cachePtr->poly = (shapeObj *) msSmallMalloc(sizeof(shapeObj));
  //msInitShape(cachePtr->poly);
  cachePtr->poly = NULL;

  cachePtr->status = MS_FALSE;

  if(layerPtr->type == MS_LAYER_POINT && classPtr->numstyles > 0) { /* cache the marker placement, it's already on the map */
    rectObj rect;
    double w, h;

    if(cacheslot->nummarkers == cacheslot->markercachesize) { /* just add it to the end */
      cacheslot->markers = (markerCacheMemberObj *) realloc(cacheslot->markers, sizeof(markerCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT));
      MS_CHECK_ALLOC(cacheslot->markers, sizeof(markerCacheMemberObj)*(cacheslot->cachesize+MS_LABELCACHEINCREMENT), MS_FAILURE);
      cacheslot->markercachesize+=MS_LABELCACHEINCREMENT;
    }

    i = cacheslot->nummarkers;

    cacheslot->markers[i].poly = (shapeObj *) msSmallMalloc(sizeof(shapeObj));
    msInitShape(cacheslot->markers[i].poly);

    /* TO DO: at the moment only checks the bottom style, perhaps should check all of them */
    /* #2347: after RFC-24 classPtr->styles could be NULL so we check it */
    if(classPtr->styles != NULL) {
      if(msGetMarkerSize(&map->symbolset, classPtr->styles[0], &w, &h, layerPtr->scalefactor) != MS_SUCCESS)
        return(MS_FAILURE);
      rect.minx = point->x - .5 * w;
      rect.miny = point->y - .5 * h;
      rect.maxx = rect.minx + (w-1);
      rect.maxy = rect.miny + (h-1);
      msRectToPolygon(rect, cacheslot->markers[i].poly);
      cacheslot->markers[i].id = cacheslot->numlabels;

      cachePtr->markerid = i;

      cacheslot->nummarkers++;
    }
  }

  cacheslot->numlabels++;

  /* Maintain main labelCacheObj.numlabels only for backwards compatibility */
  map->labelcache.numlabels++;

  return(MS_SUCCESS);
}
Esempio n. 4
0
char *FLTGetSpatialComparisonCommonExpression(FilterEncodingNode *psNode, layerObj *lp)
{
    char *pszExpression = NULL;
    shapeObj *psQueryShape = NULL;
    double dfDistance = -1;
    int nUnit = -1;
    char *pszWktText = NULL;
    char szBuffer[256];
    char *pszTmp=NULL;
    projectionObj sProjTmp;
    char *pszEPSG= NULL;
    rectObj sQueryRect;
    shapeObj *psTmpShape=NULL, *psBufferShape=NULL;
    int bBBoxQuery = 0;
    
    if (psNode == NULL || lp == NULL)
      return NULL;

    if (psNode->eType != FILTER_NODE_TYPE_SPATIAL)
      return NULL;

    /* get the shape*/
    /*BBOX case: replace it with NOT DISJOINT.*/
    if(FLTIsBBoxFilter(psNode))
    {
        pszEPSG = FLTGetBBOX(psNode, &sQueryRect);
        /*this should be removed and bbox should parse and strore the srs properly, 
          using now legacy code*/
        if (pszEPSG)
          psNode->pszSRS = msStrdup(pszEPSG);
        
        psTmpShape = (shapeObj *)msSmallMalloc(sizeof(shapeObj));
        msInitShape(psTmpShape);
        msRectToPolygon(sQueryRect, psTmpShape);
        bBBoxQuery = 1;

    }
    else
    {
        /*other geos type operations*/

        /*project shape to layer projection. If the proj is not part of the filter query,
          assume that the cooredinates are in the map projection*/
      
        psQueryShape = FLTGetShape(psNode, &dfDistance, &nUnit);
    
        if ((strcasecmp(psNode->pszValue, "DWithin") == 0 ||
             strcasecmp(psNode->pszValue, "Beyond") == 0 ) &&
            dfDistance > 0)
        {
            if (nUnit >=0 && nUnit != lp->map->units)
              dfDistance *= msInchesPerUnit(nUnit,0)/msInchesPerUnit(lp->map->units,0);

            psBufferShape = msGEOSBuffer(psQueryShape, dfDistance);
        }
        if (psBufferShape)
          psTmpShape = psBufferShape;
        else
          psTmpShape = psQueryShape;
    }

    if (psTmpShape)
    {
        if( lp->projection.numargs > 0)
        {
            if (psNode->pszSRS && FTLParseEpsgString(psNode->pszSRS, &sProjTmp))
            {
              msProjectShape(&sProjTmp, &lp->projection, psTmpShape);
              msFreeProjection(&sProjTmp);
            }
            else if (lp->map->projection.numargs > 0)
              msProjectShape(&lp->map->projection, &lp->projection, psTmpShape);
        }
/* ==================================================================== */
/*      use within for bbox. Not Disjoint does not work.                */
/* ==================================================================== */
        if (bBBoxQuery)
          sprintf(szBuffer, "%s", " ([shape] ");
        /* sprintf(szBuffer, "%s", " (NOT ([shape] "); */
        else
          sprintf(szBuffer, "%s", " ([shape] ");

        pszExpression = msStringConcatenate(pszExpression, szBuffer);


        if (strncasecmp(psNode->pszValue, "intersect", 9) == 0)
          pszTmp = msStrdup("intersects");
        else
          pszTmp = msStrdup(psNode->pszValue);
        msStringToLower(pszTmp);
        if (bBBoxQuery)
          sprintf(szBuffer, " %s ", "intersects");
        /* sprintf(szBuffer, " %s ", "disjoint"); */
        else
           sprintf(szBuffer, " %s ", pszTmp);

        pszExpression = msStringConcatenate(pszExpression, szBuffer);
        msFree(pszTmp);

        pszWktText = msGEOSShapeToWKT(psTmpShape);
        sprintf(szBuffer, "%s", " fromText('");
        pszExpression = msStringConcatenate(pszExpression, szBuffer);
        pszExpression = msStringConcatenate(pszExpression, pszWktText);
        sprintf(szBuffer, "%s", "')");
        pszExpression = msStringConcatenate(pszExpression, szBuffer);
        msGEOSFreeWKT(pszWktText);
    }
    if (psBufferShape)
      msFreeShape(psBufferShape);

    
    sprintf(szBuffer, "%s", ")");
    pszExpression = msStringConcatenate(pszExpression, szBuffer);

    if (0) /* bBBoxQuery */
     {
          sprintf(szBuffer, "%s", ")");
          pszExpression = msStringConcatenate(pszExpression, szBuffer);
     }
    return pszExpression;
}