My map projection is: "EPSG:900913" ,Display projection is "EPSG:4326" and units is "m", however does not equal the length in Direction/length with the length is calculated in measuring in OpenLayers, in fact Openlayers show the length more than the actual length when i use measure control. I've set the option geodesic: true to my measure control.
for Example:
the enter length is: 100m
the length after measuring is: 85.29m
define measure control:
measureLine = new OpenLayers.Control.DynamicMeasure(OpenLayers.Handler.Path);measureLine.geodesic = true;function insertDirectionLength(drawType) { var values = parseInput( window.prompt( "Enter direction and length offset values for new point (e.g. '-45, 10')", "direction, length" ) ); if (values != null) { var controlKey,key; for (key in controls) { controlKey = controls[key]; if (drawType == key) { controlKey.insertDirectionLength(values[0], values[1]); } } } }How to resolve this problem? Please help me.
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for Example:
the enter length is: 100m
the length after measuring is: 85.29m
define measure control:
measureLine = new OpenLayers.Control.DynamicMeasure(OpenLayers.Handler.Path);measureLine.geodesic = true;function insertDirectionLength(drawType) { var values = parseInput( window.prompt( "Enter direction and length offset values for new point (e.g. '-45, 10')", "direction, length" ) ); if (values != null) { var controlKey,key; for (key in controls) { controlKey = controls[key]; if (drawType == key) { controlKey.insertDirectionLength(values[0], values[1]); } } } }How to resolve this problem? Please help me.
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