topic Re: How to move a point along a line? in ArcGIS JavaScript Maps SDK Questions https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/how-to-move-a-point-along-a-line/m-p/341734#M31597 <HTML><HEAD></HEAD><BODY><P>I think your best bet is some math and the <A href="https://developers.arcgis.com/javascript/3/jsapi/point-amd.html#update">update(x, y)</A>&nbsp;method from Point.&nbsp;</P><P></P><P>You have the two points that make the line, from the Polyline Object. You know that</P><P></P><P>y=mx+b, and m = (y2-y1)/(x2-x1)</P><P></P><P>so you can find the equation for the line. Then you can produce x values, and find the associated y values, and then use the update method to set the point.&nbsp;</P><P></P><P>Low level graphics manipulation is a bit involved. Good luck man <IMG src="https://community.esri.com/legacyfs/online/emoticons/grin.png" /></P></BODY></HTML> Mon, 19 Nov 2018 20:39:03 GMT deleted-user----ypwdOWHsd 2018-11-19T20:39:03Z How to move a point along a line? https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/how-to-move-a-point-along-a-line/m-p/341733#M31596 <HTML><HEAD></HEAD><BODY><P>I have a polyline showing a delivery route. How can I move/animate a point along the line from start to the end?</P></BODY></HTML> Fri, 16 Nov 2018 18:44:42 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/how-to-move-a-point-along-a-line/m-p/341733#M31596 AbdulKhan 2018-11-16T18:44:42Z Re: How to move a point along a line? https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/how-to-move-a-point-along-a-line/m-p/341734#M31597 <HTML><HEAD></HEAD><BODY><P>I think your best bet is some math and the <A href="https://developers.arcgis.com/javascript/3/jsapi/point-amd.html#update">update(x, y)</A>&nbsp;method from Point.&nbsp;</P><P></P><P>You have the two points that make the line, from the Polyline Object. You know that</P><P></P><P>y=mx+b, and m = (y2-y1)/(x2-x1)</P><P></P><P>so you can find the equation for the line. Then you can produce x values, and find the associated y values, and then use the update method to set the point.&nbsp;</P><P></P><P>Low level graphics manipulation is a bit involved. Good luck man <IMG src="https://community.esri.com/legacyfs/online/emoticons/grin.png" /></P></BODY></HTML> Mon, 19 Nov 2018 20:39:03 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/how-to-move-a-point-along-a-line/m-p/341734#M31597 deleted-user----ypwdOWHsd 2018-11-19T20:39:03Z