Dynamic Map Layer with Mapserver C # MapScript
I am developing a web application that will show the location of a project on a map. I have this function which adds the data that I want to show to the map layer.
protected void AgregarPunto(DataTable result)
{
layerObj thislayer = util.MSMap.getLayerByName("poi");
foreach (DataRow dr in result.Rows)
{
shapeObj shp = new shapeObj(mapscript.MS_SHP_POINTM);
shp = shapeObj.fromWKT(dr["the_geom"].ToString());
thislayer.addFeature(shp);
}
}
This was recommended by the guys on the #mapserver IRC Channel. But it won't work! Can anyone help figure out why the points are not showing?
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1 answer
Are you creating classObj and styleObj for your layer?
Here's my sample code:
myLayer.type = OSGeo.MapServer.MS_LAYER_TYPE.MS_LAYER_LINE;
myLayer.status = 1;
myLayer.symbolscaledenom = 1;
// Create a mapping class
OSGeo.MapServer.classObj myClass = new OSGeo.MapServer.classObj(myLayer);
// Create a style
OSGeo.MapServer.styleObj style = new OSGeo.MapServer.styleObj(myClass);
// unitColor = new Color(12, 34, 56);
int red = Convert.ToInt32(unitColor.R);
int green = Convert.ToInt32(unitColor.G);
int blue = Convert.ToInt32(unitColor.B);
style.color.setRGB(red, green, blue);
style.outlinecolor.setRGB(255, 255, 255);
//style.symbol = _map.symbolset.index("circle"); // Here '_map' is an instance of mapObj, this line is not strictly necessary
style.size = 10;
style.minsize = 3; // Change this to your needs
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