<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi devs,<div><br></div><div>how was WMS GetFeatureInfo implemented in Mapserver for WMS 1.3?</div><div><br></div><div>Does I and J follow the axis order like it says in the spec?</div><div><br></div><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Arial; "><b>7.4.3.7<span class="Apple-tab-span" style="white-space:pre"> </span>I, J</b></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Arial; ">The mandatory I and J request parameters are integers that indicate a point of interest on the map that was produced by the embedded GetMap request (the “map request part” described in 7.4.3.3). The point (I,J) is a point in the (<span style="font: 10.0px 'Times New Roman'"><i>i</i></span>,<span style="font: 10.0px 'Times New Roman'"><i>j</i></span>) space defined by the Map CS (see 6.7.2). Therefore:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Arial; "><span style="font: 10.0px Helvetica">⎯<span class="Apple-tab-span" style="white-space:pre"> </span></span>the value of I shall be between 0 and the maximum value of the <span style="font: 10.0px 'Times New Roman'"><i>i </i></span>axis; <span style="font: 10.0px Helvetica">⎯<span class="Apple-tab-span" style="white-space:pre"> </span></span>the value of J shall be between 0 and the maximum value of the <span style="font: 10.0px 'Times New Roman'"><i>j </i></span>axis; <span style="font: 10.0px Helvetica">⎯<span class="Apple-tab-span" style="white-space:pre"> </span></span>the point I=0, J=0 indicates the pixel at the upper left corner of the map; <span style="font: 10.0px Helvetica">⎯<span class="Apple-tab-span" style="white-space:pre"> </span></span>I increases to the right and J increases downward.</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Arial; ">The point (I,J) represents the centre of the indicated pixel. If the value of I or of J is invalid, the server shall issue a service exception (code = InvalidPoint).</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 10px/normal Arial; "><br></div><div><br></div><div><div>Best regards,</div><div>Bart</div><div><br></div><div>
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>-- </div><div>Looking for flexible support on OpenLayers or GeoExt? Please check out <a href="http://www.osgis.nl/support.html">http://www.osgis.nl/support.html</a></div><div><br></div><div>Bart van den Eijnden</div><div>OSGIS</div><div><a href="mailto:bartvde@osgis.nl">bartvde@osgis.nl</a></div></div></div></span></div>
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