Charts: "utility marks"
import io.data2viz.charts.*
import io.data2viz.charts.core.Padding
import io.data2viz.charts.core.*
import io.data2viz.charts.dimension.*
import io.data2viz.charts.chart.*
import io.data2viz.charts.chart.mark.*
import io.data2viz.charts.layout.*
import io.data2viz.charts.config.configs.*
import io.data2viz.charts.config.*
import io.data2viz.charts.core.CursorType
import io.data2viz.math.*
import io.data2viz.geom.*
import io.data2viz.viz.*
import io.data2viz.color.*
import kotlin.math.*
import kotlinx.datetime.Instant
val width = 450.0
val height = 300.0
data class Value(val index: Int, val value: Double?)
val values = listOf(
Value(2, 16.4),
Value(3, 18.2),
Value(4, 22.9),
Value(5, 23.3),
Value(6, 20.6),
Value(7, 15.9),
Value(8, 12.9),
Value(9, 12.4),
Value(10, 15.2),
Value(11, null),
Value(12, null),
Value(13, 16.2),
Value(14, 17.1),
Value(15, 18.8),
Value(15, 18.8),
)
fun main() {
// Creating and sizing the VizContainer
val vc = newVizContainer().apply { size = Size(width, height) }
vc.chart(values) {
config {
cursor {
show = true
type = CursorType.Vertical
}
events {
highlightMode = HighlightMode.None
}
}
val indexDim = discrete( { domain.index } )
val valueDim = quantitative( { domain.value } )
val lowDim = valueDim.child( { 14.0 } )
val hiDim = valueDim.child( { 20.0 } )
val stepDimLow = valueDim.child( { if (domain.value != null ) ((domain.value!! / 4).toInt() * 4.0) else null } )
val stepDimHi = valueDim.child( { if (domain.value != null ) (ceil(domain.value!! / 4) * 4.0) else null } )
val dashDimension = discrete( {
if (values[indexInData].value == null || (indexInData < values.size - 1 && values[indexInData+1].value == null)) {
doubleArrayOf(2.0, 4.0)
} else null
} )
line(indexDim, valueDim) {
showMarkers = true
strokeWidth = constant(2.0)
y {
start = 10.0
end = 24.0
}
}
line(indexDim, lowDim) {
strokeLine = dashDimension
strokeColor = constant(Colors.Web.black)
}
line(indexDim, hiDim){
strokeLine = dashDimension
strokeColor = constant(Colors.Web.black)
}
line(indexDim, stepDimLow){
curve = MarkCurves.Step
strokeColor = constant(Colors.Web.red)
}
line(indexDim, stepDimHi){
curve = MarkCurves.Step
strokeColor = constant(Colors.Web.red)
}
}
}
Sketch created by
pierre
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