<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I have a bar charts layer, and some of the bar charts don't show up. Strangely, when I'm using openlayers to display a zoom-and-pan map different bar charts go missing at different levels of zoom. Is this a bug, or some feature?<div><br></div><div>Here's a bit of my mapfile:</div><div><br></div><div><div><font class="Apple-style-span" face="Menlo"> MAP</font></div><div><font class="Apple-style-span" face="Menlo"> NAME "luzs-MAP"</font></div><div><font class="Apple-style-span" face="Menlo"> # Map image size</font></div><div><font class="Apple-style-span" face="Menlo"> SIZE 1000 800</font></div><div><font class="Apple-style-span" face="Menlo"> UNITS meters</font></div><div><font class="Apple-style-span" face="Menlo"> EXTENT -85.3382299999 33.1785600011 -83.5057259973 34.5140960012</font></div><div><font class="Apple-style-span" face="Menlo"> PROJECTION</font></div><div><font class="Apple-style-span" face="Menlo"> "init=epsg:4326"</font></div><div><font class="Apple-style-span" face="Menlo"> END</font></div><div><font class="Apple-style-span" face="Menlo"> </font></div><div><font class="Apple-style-span" face="Menlo"> #TEMPLATEPATTERN 'mapserv_template*' </font></div><div><font class="Apple-style-span" face="Menlo"> </font></div><div><font class="Apple-style-span" face="Menlo"> # Background color for the map canvas -- change as desired</font></div><div><font class="Apple-style-span" face="Menlo"> IMAGECOLOR 255 255 255</font></div><div><font class="Apple-style-span" face="Menlo"> IMAGEQUALITY 95</font></div><div><font class="Apple-style-span" face="Menlo"> IMAGETYPE agg</font></div><div><font class="Apple-style-span" face="Menlo"> </font></div><div><font class="Apple-style-span" face="Menlo"> OUTPUTFORMAT</font></div><div><font class="Apple-style-span" face="Menlo"> NAME agg</font></div><div><font class="Apple-style-span" face="Menlo"> DRIVER AGG/PNG</font></div><div><font class="Apple-style-span" face="Menlo"> IMAGEMODE RGB</font></div><div><font class="Apple-style-span" face="Menlo"> END</font></div></div><div><br></div><div>skipping over to the bar charts layer definition:</div><div><br></div><div><div><font class="Apple-style-span" face="Menlo"> LAYER</font></div><div><font class="Apple-style-span" face="Menlo"> NAME "years"</font></div><div><font class="Apple-style-span" face="Menlo"> TYPE CHART</font></div><div><font class="Apple-style-span" face="Menlo"> CONNECTIONTYPE postgis</font></div><div><font class="Apple-style-span" face="Menlo"> </font></div><div><font class="Apple-style-span" face="Menlo"> CONNECTION "dbname='atlanta_db' host=localhost port=5433 user='usrPostgres' password='usrPostgres'"</font></div><div><font class="Apple-style-span" face="Menlo"> DATA 'graph_point_geom FROM analysis."W01a_CA35DetResid_120501_170604_with_geom" USING UNIQUE gid USING srid=4326'</font></div><div><font class="Apple-style-span" face="Menlo"> PROCESSING "CHART_TYPE=bar" </font></div><div><font class="Apple-style-span" face="Menlo"> PROCESSING "CHART_BAR_MINVAL=-0.180638991133"</font></div><div><font class="Apple-style-span" face="Menlo"> PROCESSING "CHART_BAR_MAXVAL=154895170.852"</font></div><div><font class="Apple-style-span" face="Menlo"> PROCESSING "CHART_SIZE=30 50"</font></div><div><font class="Apple-style-span" face="Menlo"> </font></div><div><font class="Apple-style-span" face="Menlo"> STATUS ON </font></div><div><font class="Apple-style-span" face="Menlo"> CLASS</font></div><div><font class="Apple-style-span" face="Menlo"> NAME "sum2005demand"</font></div><div><font class="Apple-style-span" face="Menlo"> STYLE</font></div><div><font class="Apple-style-span" face="Menlo"> SIZE [sum2005demand]</font></div><div><font class="Apple-style-span" face="Menlo"> COLOR 189 163 26</font></div><div><font class="Apple-style-span" face="Menlo"> END </font></div><div><font class="Apple-style-span" face="Menlo"> END </font></div><div><font class="Apple-style-span" face="Menlo"><br></font></div><div><font class="Apple-style-span" face="Menlo"> </font></div><div><font class="Apple-style-span" face="Menlo"> CLASS</font></div><div><font class="Apple-style-span" face="Menlo"> NAME "sum2006demand"</font></div><div><font class="Apple-style-span" face="Menlo"> STYLE</font></div><div><font class="Apple-style-span" face="Menlo"> SIZE [sum2006demand]</font></div><div><font class="Apple-style-span" face="Menlo"> COLOR 235 7 177</font></div><div><font class="Apple-style-span" face="Menlo"> END </font></div><div><font class="Apple-style-span" face="Menlo"> END </font></div><div>etc.</div></div><div><br></div><div>--</div><div>John Abraham</div><div><a href="mailto:jea@hbaspecto.com">jea@hbaspecto.com</a></div></body></html>