<div>Hi,</div><div><br></div><div>What are the advantages or disadvantages <span class="Apple-style-span" style="border-collapse: collapse; white-space: pre; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">of having the map file header extent the actual bounding box of the raster data that is displayed instead of the world wide extent </span></div>
<div><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">(i.e. -180 -90 180 90 ). I have listed the top of a map file below as an example with the world wide extent.</span></div>
<div><span class="Apple-style-span" style="border-collapse: collapse; white-space: pre; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px;"><br></span></div><div>Thanks,</div><div><br></div><div>
John</div><div><br></div><div>MAP</div><div><br></div><div> # all temp files get prefixed with this string</div><div> NAME All_Raster_Layers_ignore</div><div><br></div><div> # always returns a map</div><div> STATUS ON</div>
<div><br></div><div> # image format options</div><div> OUTPUTFORMAT</div><div> NAME png</div><div> DRIVER "GD/PNG"</div><div> MIMETYPE "image/png"</div><div> IMAGEMODE RGB</div><div> EXTENSION "png"</div>
<div> END</div><div><br></div><div> # projection of the INTERFACE that this mapfile supports</div><div> PROJECTION</div><div> "init=epsg:4326"</div><div> END</div><div><br></div><div> # minx miny maxx maxy</div>
<div> EXTENT -180 -90 180 90 # World</div><div><br></div><div> # units of map/app</div><div> UNITS DD</div><div><br></div><br>