Clip lines so they don't run into a set of boxes. Useful for labeling isolines, as it allows removal of line segments that would run into any text labels.
Arguments
- x
Numeric vector of x coordinates
- y
Numeric vector of y coordinates
- id
Integer vector of id numbers indicating which lines are connected
- clip_boxes
Data frame specifying the locations of boxes to clip to. Should have five columns, named
x,y,width,height,theta, which specify the x and y positions of each box midpoint, as well as the box width, box height, and box angle in radians. Each box is specified by one data row.- asp
Aspect ratio (width/height) of the target canvas. This is used to convert widths to heights and vice versa for rotated boxes