Add two symbols for the same vertex.
- A point that requires two symbols.
- The diameter of the first symbol.
- The diameter of the second symbol.
- The layer of the second point.
{1} is the diameter of the first symbol.
{2} is the diameter of the second symbol.
Control Code Definition
A control code action Symbol Add is given a value '{0:Tree} {1:Spread} {2} Trunk', where 'Trunk' is the layer for the second point.
Measured Points
A point is assigned a code 'Tree 0.5', where 'Tree' is the feature code for a tree (and the name of the control code) and '0.5' is the diameter of the tree trunk.
The points 'Spread' attribute is given a value '8.2' and is used to size the symbol on the TR layer.
The diameter is used to size the second symbol that is placed on the Trunk layer.
- Two points are created using the same vertex.
- If the optional layer is not specified in the control code definition the second point is placed on the same layer as the first and the symbol S028 (unfilled circle) is used.
- Ensure symbols are defined for the points layers.
- The parameters determine the size of the symbol for each point.
- If a layer for the vertices second point is not specified a circle symbol is drawn and the same layer is used for both points.
- The parameter values are in ground units.
- Attributes of any type can be used to define parameters providing the attribute value is numeric.
- If a symbol is not circular the parameter is used to define both the width and length.
- You can input the symbols diameters, in the code or as an attribute, depending on the definition in Edit Control Codes.
