Bridge Parameters
Location: Select the support lines
Longitudinal Offset [ft]: Longitudinal offset along the PGL (Projected Grade Line) from the support line.
Transverse Offset [ft]: Transverse Offset from the PGL
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When working with a support line that has a skew angle greater than 0 in OpenBrIM, it is important for users to specify the transverse offset(T) along the support line, not along the PGL(Y). This is demonstrated in the figure below.
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If a support line has a skew angle greater than 0 and longitudinal offsets greater than 0 are being used, then the longitudinal offset parameter is applied perpendicular to the support line. (Need screenshot to explain clearly)