Method tRowXValue

plot/plotcore/tablexy.go:172–190

tRowXValue returns an x value at given actual row in table

(row int)

// tRowXValue returns an x value at given actual row in table
func (txy *tableXY) tRowXValue(row int) float32 {
	if txy.table == nil || txy.table.Table == nil {
		return 0
	}
	xc := txy.table.Table.Columns[txy.xColumn]
	x := float32(0.0)
	switch {
	case xc.IsString():
		x = float32(row)
	case xc.NumDims() > 1:
		_, sz := xc.RowCellSize()
		if txy.xIndex < sz && txy.xIndex >= 0 {
			x = float32(xc.FloatRowCell(row, txy.xIndex))
		}
	default:
		x = float32(xc.Float1D(row))
	}
	return x
}

// xValue returns an x value at given row in table
func (txy *tableXY) xValue(row int) float32 {