Forces - Friction

import io.data2viz.color.* import io.data2viz.geom.* import io.data2viz.math.* import io.data2viz.timer.* import io.data2viz.force.* import io.data2viz.viz.* import io.data2viz.random.* //test < TOTO > fun main() { val vizSize = 200.0 val randPos = RandomDistribution.uniform(.0, vizSize) data class LayeredPoint(val position:Point, val layer:Int) val items = (0..500).map { LayeredPoint(point(randPos(), randPos()), it%12 ) } lateinit var viz:Viz val viewCenter = point(vizSize / 2, vizSize / 2) val simulation1 = forceSimulation<LayeredPoint> { initForceNode = { position = domain.position } forceRadial { centerGet = { viewCenter } radiusGet = { domain.layer * 7.0 } } domainObjects = items intensityMin = 10.pct intensityDecay = 1.pct } val simulation2 = forceSimulation<LayeredPoint> { initForceNode = { position = domain.position } forceRadial { centerGet = { viewCenter } radiusGet = { domain.layer * 7.0 } } domainObjects = items intensityMin = 10.pct intensityDecay = 1.pct friction = 50.pct } val simulation3 = forceSimulation<LayeredPoint> { initForceNode = { position = domain.position } forceRadial { centerGet = { viewCenter } radiusGet = { domain.layer * 7.0 } } domainObjects = items intensityMin = 10.pct intensityDecay = 1.pct friction = 5.pct on(SimulationEvent.END, "End of simulation", { viz.stopAnimations() }) } val particles1 = mutableListOf<CircleNode>() val particles2 = mutableListOf<CircleNode>() val particles3 = mutableListOf<CircleNode>() viz = viz { size = size(600, 200) simulation1.nodes.forEach { forceNode -> particles1 += circle { radius = 2.0 fill = Colors.hsl((forceNode.domain.layer * 30).deg, 100.pct, 50.pct) } } simulation2.nodes.forEach { forceNode -> particles2 += circle { radius = 2.0 fill = Colors.hsl((forceNode.domain.layer * 30).deg, 100.pct, 50.pct) } } simulation3.nodes.forEach { forceNode -> particles3 += circle { radius = 2.0 fill = Colors.hsl((forceNode.domain.layer * 30).deg, 100.pct, 50.pct) } } animation { simulation1.nodes.forEach { forceNode -> particles1[forceNode.index].apply { x = forceNode.x y = forceNode.y } } simulation2.nodes.forEach { forceNode -> particles2[forceNode.index].apply { x = 200 + forceNode.x y = forceNode.y } } simulation3.nodes.forEach { forceNode -> particles3[forceNode.index].apply { x = 400 + forceNode.x y = forceNode.y } } } } viz.bindRendererOnNewCanvas() }
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