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14 <div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="OpenLayers.Geometry.LineString"></a>OpenLayers.<wbr>Geometry.<wbr>LineString</h1><div class=CBody><p>A LineString is a Curve which, once two points have been added to it, can never be less than two points long.</p><h4 class=CHeading>Inherits from</h4><ul><li><a href="Curve-js.html#OpenLayers.Geometry.Curve" class=LClass id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">OpenLayers.Geometry.Curve</a></li></ul><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr class="SMain"><td class=SEntry><a href="#OpenLayers.Geometry.LineString" >OpenLayers.<wbr>Geometry.<wbr>LineString</a></td><td class=SDescription>A LineString is a Curve which, once two points have been added to it, can never be less than two points long.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.Constructor" >Constructor</a></td><td class=SDescription></td></tr><tr class="SConstructor SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.OpenLayers.Geometry.LineString" >OpenLayers.<wbr>Geometry.<wbr>LineString</a></td><td class=SDescription>Create a new LineString geometry</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.removeComponent" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">removeComponent</a></td><td class=SDescription>Only allows removal of a point if there are three or more points in the linestring. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.intersects" id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">intersects</a></td><td class=SDescription>Test for instersection between two geometries. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.getVertices" id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">getVertices</a></td><td class=SDescription>Return a list of all points in this geometry.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Geometry.LineString.distanceTo" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">distanceTo</a></td><td class=SDescription>Calculate the closest distance between two geometries (on the x-y plane).</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>
16 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.Constructor"></a>Constructor</h3></div></div>
18 <div class="CConstructor"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.OpenLayers.Geometry.LineString"></a>OpenLayers.<wbr>Geometry.<wbr>LineString</h3><div class=CBody><p>Create a new LineString geometry</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>points</td><td class=CDLDescription>{Array(<a href="Point-js.html#OpenLayers.Geometry.Point" class=LClass id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">OpenLayers.Geometry.Point</a>)} An array of points used to generate the linestring</td></tr></table></div></div></div>
20 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.Functions"></a>Functions</h3></div></div>
22 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.removeComponent"></a>removeComponent</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>removeComponent: function(</td><td class=PParameter nowrap>point</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Only allows removal of a point if there are three or more points in the linestring. (otherwise the result would be just a single point)</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>point</td><td class=CDLDescription>{<a href="Point-js.html#OpenLayers.Geometry.Point" class=LClass id=link7 onMouseOver="ShowTip(event, 'tt6', 'link7')" onMouseOut="HideTip('tt6')">OpenLayers.Geometry.Point</a>} The point to be removed</td></tr></table></div></div></div>
24 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.intersects"></a>intersects</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>intersects: function(</td><td class=PParameter nowrap>geometry</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Test for instersection between two geometries. This is a cheapo implementation of the Bently-Ottmann algorigithm. It doesn’t really keep track of a sweep line data structure. It is closer to the brute force method, except that segments are sorted and potential intersections are only calculated when bounding boxes intersect.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>geometry</td><td class=CDLDescription>{<a href="../Geometry-js.html#OpenLayers.Geometry" class=LClass id=link8 onMouseOver="ShowTip(event, 'tt7', 'link8')" onMouseOut="HideTip('tt7')">OpenLayers.Geometry</a>}</td></tr></table><h4 class=CHeading>Returns</h4><p>{Boolean} The input geometry intersects this geometry.</p></div></div></div>
26 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.getVertices"></a>getVertices</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>getVertices: function(</td><td class=PParameter nowrap>nodes</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Return a list of all points in this geometry.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>nodes</td><td class=CDLDescription>{Boolean} For lines, only return vertices that are endpoints. If false, for lines, only vertices that are not endpoints will be returned. If not provided, all vertices will be returned.</td></tr></table><h4 class=CHeading>Returns</h4><p>{Array} A list of all vertices in the geometry.</p></div></div></div>
28 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.LineString.distanceTo"></a>distanceTo</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>distanceTo: function(</td><td class=PParameter nowrap>geometry,</td></tr><tr><td></td><td class=PParameter nowrap>options</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Calculate the closest distance between two geometries (on the x-y plane).</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>geometry</td><td class=CDLDescription>{<a href="../Geometry-js.html#OpenLayers.Geometry" class=LClass id=link9 onMouseOver="ShowTip(event, 'tt7', 'link9')" onMouseOut="HideTip('tt7')">OpenLayers.Geometry</a>} The target geometry.</td></tr><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object} Optional properties for configuring the distance calculation.</td></tr></table><h4 class=CHeading>Valid options</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>details</td><td class=CDLDescription>{Boolean} Return details from the distance calculation. Default is false.</td></tr><tr><td class=CDLEntry>edge</td><td class=CDLDescription>{Boolean} Calculate the distance from this geometry to the nearest edge of the target geometry. Default is true. If true, calling distanceTo from a geometry that is wholly contained within the target will result in a non-zero distance. If false, whenever geometries intersect, calling distanceTo will return 0. If false, details cannot be returned.</td></tr></table><h4 class=CHeading>Returns</h4><p>{Number | Object} The distance between this geometry and the target. If details is true, the return will be an object with distance, x0, y0, x1, and x2 properties. The x0 and y0 properties represent the coordinates of the closest point on this geometry. The x1 and y1 properties represent the coordinates of the closest point on the target geometry.</p></div></div></div>
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44 <div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>removeComponent: function(</td><td class=PParameter nowrap>point</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Only allows removal of a point if there are three or more points in the linestring. </div></div><div class=CToolTip id="tt2"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>intersects: function(</td><td class=PParameter nowrap>geometry</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Test for instersection between two geometries. </div></div><div class=CToolTip id="tt3"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>getVertices: function(</td><td class=PParameter nowrap>nodes</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Return a list of all points in this geometry.</div></div><div class=CToolTip id="tt4"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>distanceTo: function(</td><td class=PParameter nowrap>geometry,</td></tr><tr><td></td><td class=PParameter nowrap>options</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Calculate the closest distance between two geometries (on the x-y plane).</div></div><div class=CToolTip id="tt5"><div class=CClass>A Curve is a MultiPoint, whose points are assumed to be connected. </div></div><div class=CToolTip id="tt6"><div class=CClass>Point geometry class.</div></div><div class=CToolTip id="tt7"><div class=CClass>A Geometry is a description of a geographic object. </div></div><!--END_ND_TOOLTIPS-->
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