"addPolylineToLayer"
Adds a polyline to a layer.
Synopsis
int addPolylineToLayer(string strLayer, string strName,
long iNumPoints);
Parameters
| Parameter | Description |
|---|---|
| strLayer | The name of the layer the polyline will be added to. |
| strName | The name of the polyline that will be added to a layer. |
| iNumPoints | Number of points that will be added to a polyline. |
Description
Adds a polyline to a layer.
Example
The following code adds a polyline to a layer and the points to the polyline.
main()
{
int i;
GisViewer_ewo1.addEmptyLayer("EWO");
GisViewer_ewo1.setLayerFillColor("EWO","blue");
GisViewer_ewo1.setLayerLineColor("EWO","blue");
i = GisViewer_ewo1.addPolylineToLayer("EWO", "Helsinki", 4);
GisViewer_ewo1.addPointToPolyline("EWO", i, 0, 25, 60);
GisViewer_ewo1.addPointToPolyline("EWO", i, 1, 26, 61);
GisViewer_ewo1.addPointToPolyline("EWO", i, 2, 24, 62);
GisViewer_ewo1.addPointToPolyline("EWO", i, 3, 25, 60);
}The code above will add a polyline above Helsinki Finland.
The layer the polyline will be added to must be a layer that was added using the function "addEmptyLayer". The function addPolylineToLayer() is not supported on an existing "normal"; layer.
Assignment
GIS Viewer
