Hi Esteban,
There's a tool that can be useful for doing this. Open the tools dialog box (Tools->Tool Manager) find the "Create Line by Length" item and check the checkbox "Loaded". When it loads, it adds a pencil icon to the tools toolbar.
Once you have selected the object in question, click at the pencil icon and a dialog will appear, then specify the parameters you want and a line will be created.
If you need to do this programatically, then you could use the source code provided with the MapBasic installation. The program is located at the [mapbasic_directory]\SAMPLES\MAPBASIC\COGOLINE\COGOLINE.MB. The point here is in the GetEndpoint function:
Declare Sub GetEndpoint(ByVal x1 As Float,
ByVal y1 As Float,
ByVal angle As Float,
ByVal length As Float,
ByVal iterations As Smallint,
x2 As Float, y2 As Float)As you can see, you specify the source coordinates, distance and angle and it calculates the values, returned by reference in the x2 and y2 variables.
Hope this helps,
Jes�s Orozco Olot (Girona) - Spain
S. Esteban Rodr�guez escribi�:
hi
someone have a *.mb sample source code of as add nodes at a specified distance to selection.obj???
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