Question:
Can you provide an example of the linking codes available in OpenRoads Survey?
Answer:
Point Coding example files
The link above contains zip file that has an example DGN/CSV file that demonstrates each of the linking codes available in OpenRoads Survey. Contents include:
Below is a clip from the Help file explaining the various linking/control codes:
Linking Codes
Start
begins creating a Linear Feature
StartPC
starts a linear feature in Arc Mode
ArcPC
specifies the beginning of a tangential arc or curve within a Linear Feature
NonTanPC
specifies the beginning of a non-tangential arc or curve within a Linear Feature
ArcSingle
creates a three point arc with previous and next points (does not work at beginning or end of a Linear Feature)
ArcToArc
ends previous tangent arc and begins another tangent arc (must be preceded by ArcPC)
NonTanPT
specifies the end of a non-tangential arc or curve within a Linear Feature
ArcPT
specifies the end of a tangential arc or curve within a Linear Feature
ArcToggle
toggles between NonTanPC and NonTanPT (depends on pairing)
End
ends the linear feature (not necessary in most cases)
CloseShape
closes the ends of the linear feature by adding right angle at both ends and intersecting
Close
closes the Linear Feature back to the first point
Control Codes:
Control codes must be assigned after the Field code. Control codes can only be Alpha values.
Control and Linking codes can both be used on the same point as long as the Control code is last.
Control codes must be separated from the Field or Linking code with a space.
CircleDiameter
draws a circle of specified diameter around this point (must be within Linear Feature)
CircleRadius
draws a circle with specified radius around this point (must be within Linear Feature)
RectangleWidth
draws a rectangle from two points and specified width (must be within Linear Feature)
TapeDistance
applies field measured distances to the Linear Feature. All measurements are applied 90 degrees from previous segment. Positive values turn right, and negative values turn left. (must be within Linear Feature)
JoinPoint
joins this point to specified point name (does NOT have to be in linear feature)
NewTemplate
same as InRoads TMPL Consecutive Start codes will get this linear feature paralleled and translated based off of initial points
Elevation
sets the Elevation of this point
UpDown
changes final elevation coordinate of point by value entered
LeftRight
changes final coordinate of point by adjusting left (-) or right (+) of measured observation by value entered
FrontBack
Changes final coordinate of point by adding or subtracting a distance from the measured distance
AttributeName
one method of getting attributes for a point (pairs with Value)
AttributeValue
One method of getting attributes for a point (pairs with Name)
AttributeArray
one method of getting attributes for a point (Names and Value in array)
TerrainSpot
include in DTM as spot
TerrainNoSpot
do not Include in DTM
TerrainBreak
include in DTM as break
TerrainNoBreak
do not include in DTM