Symbol Features

The Symbol options give you access to options allowing you to manipulate symbol features.

For each of the Symbol options at the top of the menu, you will be asked to indicate the symbol feature concerned before the require option is carried out.

The Symbol Delete option allows you to delete a symbol feature from the current model.  The option will also delete the points that were used to construct that symbol.  The Symbol Remove option also allows you to delete a symbol feature from the current model.  With this option, however, the points used to construct the symbol are left in the model but will be given no code.

The Symbol Recode option allows you to recode a symbol feature.  Note that you must use a code prefix whose symbol element uses the same number of points as the indicated symbol.

The Symbol Copy option can be used to copy the points that are used to construct a symbol feature in any of the backcloth models.  This has the effect of copying the symbol itself.

The Symbol More option generates a pop-up menu giving further symbol feature options.  The Modify Commit option allows you to commit any symbol feature to the dedicated CAD backcloth of a model.  After you have indicated a symbol, a CAD copy of it will be created.

Symbol Point Order

The Order options allow you to change the order in which points are used to create multi-point symbol features. 

Before Symbol Reverse	After Symbol Reverse

The Order Reverse option allows you to reverse the order of the points in a multi-point symbol feature.   For instance, if you have a symbol feature which is surveyed along one edge and the points have been surveyed in the wrong direction, the symbol will be displayed on the wrong side.  You can use this option to correct that.  Simply indicate the symbol feature and it will be redrawn to reflect the change in point order.

The Symbol Shuffle option allows you to change the order of the points in a 3-point symbol feature by taking the first point of the three and making it the last.  Therefore, the order in which the points are used to generate the symbol would change from 123 to 231.  A second shuffle will change the point order from 231 to 312.  A third shuffle would then return the points to the original order.

Rotating Symbols

The Rotate options allow you to change the rotation that has been applied to symbol features that use only one point.

The Rotate Angle option allows you to enter the new angle to which the symbol should be rotated.  In symbol rotation, the angle is applied using the Polar convention, where an angle of zero is the positive x-axis and an angle of 90° is the positive y-axis.  After indicating the symbol to rotate, enter the new angle.  The angle that you enter should use the units that are currently set for n4ce.

The Rotate Align option allows you to specify the angle of symbol rotation graphically.  After indicating the symbol, you will be asked to indicate an alignment point.  The polar angle from the symbol origin to the alignment point is then used to calculate the angle of the symbol.

The Rotate To Reference can only be used in conjunction with the List Mode.  You should select the points of any feature symbols you wish to align to a line feature.  After confirming you wish to carry this out, you will have to indicate which line feature you wish to use for the alignment.  Each of the selected points symbol will then be rotated so that they are aligned to the indicated line feature.  This option is generally intended for use on railway and road surveys.

Scaling Symbols

The Scale options allow you to change the scale that has been applied to symbol features.  These options can only be carried out on one point symbols.

The Scale Value option allows you to change the scale by entering a new value.  When selected, indicate the feature symbol to change.  You will then be offered the current symbol scale as the default.  If you choose a symbol generated from more than one point, a message beep will sound.

The Scale Indicate option allows you to adjust the scale of a feature symbol by sketching a new symbol size.  After indicating the symbol, you will be asked to indicate a second point using the symbol handle as a reference.  The new scale of the symbol is calculated from the length of the line between the two points