fix bug in line calc leading to incorrect widths
fix bug in line calc leading to incorrect widths

TitoAgudelo/tangram,ceseale/tangram,TitoAgudelo/tangram,taylorhxu/tangram,zerebubuth/tangram,xvilan/tangram,xvilan/tangram,ceseale/tangram,rosamcgee/tangram,TitoAgudelo/tangram,DHaylock/tangram,ceseale/tangram,taylorhxu/tangram,zerebubuth/tangram,xvilan/tangram,DHaylock/tangram,rosamcgee/tangram,zerebubuth/tangram,tangrams/tangram,rosamcgee/tangram,tangrams/tangram,taylorhxu/tangram,DHaylock/tangram