in plot-api/src/commonMain/kotlin/org/jetbrains/letsPlot/bistro/corr/OptionsConfigurator.kt [188:197]
fun getKeepMatrixDiag(
tiles: LayerParams,
points: LayerParams,
labels: LayerParams
): Boolean {
val tilesDiag = if (tiles.added) tiles.diag!! else false
val pointsDiag = if (points.added) points.diag!! else false
val labelsDiag = if (labels.added) labels.diag!! else false
return tilesDiag || pointsDiag || labelsDiag
}