Function UpdateShapeAttributes

mapcluster.c:538–594

update the shape attributes (aggregate) */

/* update the shape attributes (aggregate) */
static void UpdateShapeAttributes(layerObj* layer, clusterInfo* base, clusterInfo* current)
{
    int i;
    int* itemindexes = layer->iteminfo;

    for (i = 0; i < layer->numitems; i++)
    {
        if (base->shape.numvalues <= i)
            break;

        if (itemindexes[i] == MSCLUSTER_FEATURECOUNTINDEX || 
            itemindexes[i] == MSCLUSTER_GROUPINDEX)
            continue;

        if (current->shape.numvalues <= i)
            break;
        
        if (current->shape.values[i])
        {
            if (EQUALN(layer->items[i], "Min:", 4))
            {
                if (strcasecmp(base->shape.values[i], current->shape.values[i]) > 0)
                {
                    msFree(base->shape.values[i]);
                    base->shape.values[i] = msStrdup(current->shape.values[i]);
                }
            }
            else if (EQUALN(layer->items[i], "Max:", 4))
            {
                if (strcasecmp(base->shape.values[i], current->shape.values[i]) < 0)
                {
                    msFree(base->shape.values[i]);
                    base->shape.values[i] = msStrdup(current->shape.values[i]);
                }
            }
            else if (EQUALN(layer->items[i], "Sum:", 4))
            {
                double sum = atof(base->shape.values[i]) + atof(current->shape.values[i]);
                msFree(base->shape.values[i]);
                base->shape.values[i] = msDoubleToString(sum, MS_FALSE);
            }
            else if (EQUALN(layer->items[i], "Count:", 6))
            {
                int count = atoi(base->shape.values[i]) + 1;
                msFree(base->shape.values[i]);
                base->shape.values[i] = msIntToString(count);
            }
            else if (!EQUAL(base->shape.values[i], current->shape.values[i]) 
                     && !EQUAL(base->shape.values[i], ""))
            {
                /* clear the value if that doesn't match */
                msFree(base->shape.values[i]);
                base->shape.values[i] = msStrdup("");
            }
        }
    }
}