The command Create BestFit Alignment on the basis of the given sequence of points or the polyline calculates and draws BestFit alignment that best fits the given elements.
Click on the Create BestFit Alignment icon.
After the start of the command, Bestfit Alignment dialog box appears.
As input data, it is possible to give one or two (parallel) sequences of points or one or two (parallel) polylines, where the program can read points from.
First specified whether BestFit alignment will be created from one or two sets of input objects.
- If you select option One string, the alignment will be created through a single set of blocks or Polyline vertices, representing roadway/railway alignment.
- If you select option Two strings, then it's required to select two different values for block's attributes, representing right and left roadway edges.
In the next step define what kind of data will be used.
- If you select the AutoCAD blocks, you can define Weeding setting under Parameters button, which opens the right dialog box.
After defining the weeding options press OK and continue with the selection of the value of a point attribute that will be used for creating the BestFit alignment. In the Attribute name pull down menu select the attribute name of points and then in the Point attribute choose the value of a point attribute that will be used to create the BestFit alignment.
- If you want to create a BestFit alignment from polyline, choose Polyline check box and select the polyline that will be used to create the alignment.
Check Draw as Tangent Polygon to design an alignment with tangent polygon.
Check the Show report check box to draw BestFit reports, including the regression analysis result.
Confirm with OK.
In Draw lanes and widenings select vehicle combination and confirm with OK to draw the widenings.
Output data is the alignment with main elements that best follows the course of the given elements. To input regression analysis results in the drawing select Place diagram in DWG and define the location of the report in the drawing.
An example of a sequence of points:
An example of a sequence of two polylines:
