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base: kscience:91f860adf61a3d0ee49372a99c3dc385a30bed27
Branches Tags
kscience:master
kscience:simulation
kscience:dev-maxim
kscience:dev
kscience:feature/device-collective-demo
kscience:feature/templating_kts
kscience:refactor/df-0.7
kscience:specialized-messages
kscience:motors
kscience:ktor-io
kscience:v0.2.0
..
compare: kscience:9f21a14f96fae6588f4802903ca8dfb829db4fc7
Branches Tags
kscience:simulation
kscience:dev-maxim
kscience:dev
kscience:feature/device-collective-demo
kscience:feature/templating_kts
kscience:refactor/df-0.7
kscience:master
kscience:specialized-messages
kscience:motors
kscience:ktor-io
kscience:v0.2.0

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4 changed files with 45 additions and 58 deletions
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10
controls-constructor/src/commonMain/kotlin/space/kscience/controls/constructor/models/MaterialPoint.kt
View File

@ -26,23 +26,17 @@ public class MaterialPoint(
private var currentForce = force.value
private val movement = onTimer(
DefaultTimer.REALTIME,
reads = setOf(velocity, position),
writes = setOf(velocity, position)
) { prev, next ->
val dtSeconds = (next - prev).toDouble(DurationUnit.SECONDS)
// compute new value based on velocity and acceleration from the previous step
val deltaR = (velocity.value * dtSeconds).cast(Meters) +
position.value += (velocity.value * dtSeconds).cast(Meters) +
(currentForce / mass.value * dtSeconds.pow(2) / 2).cast(Meters)
position.value += deltaR
// compute new velocity based on acceleration on the previous step
val deltaV = (currentForce / mass.value * dtSeconds).cast(MetersPerSecond)
//TODO apply energy correction
//val work = deltaR.length.value * currentForce.length.value
velocity.value += deltaV
velocity.value += (currentForce / mass.value * dtSeconds).cast(MetersPerSecond)
currentForce = force.value
}
}

8
controls-constructor/src/commonMain/kotlin/space/kscience/controls/constructor/units/coordinates.kt
View File

@ -1,8 +1,5 @@
package space.kscience.controls.constructor.units
import kotlin.math.pow
import kotlin.math.sqrt
public data class XY<U : UnitsOfMeasurement>(val x: NumericalValue<U>, val y: NumericalValue<U>)
public fun <U : UnitsOfMeasurement> XY(x: Number, y: Number): XY<U> = XY(NumericalValue(x), NumericalValue((y)))
@ -21,11 +18,6 @@ public data class XYZ<U : UnitsOfMeasurement>(
val z: NumericalValue<U>,
)
public val <U : UnitsOfMeasurement> XYZ<U>.length: NumericalValue<U>
get() = NumericalValue(
sqrt(x.value.pow(2) + y.value.pow(2) + z.value.pow(2))
)
public fun <U : UnitsOfMeasurement> XYZ(x: Number, y: Number, z: Number): XYZ<U> =
XYZ(NumericalValue(x), NumericalValue((y)), NumericalValue(z))

6
demo/constructor/src/jvmMain/kotlin/BodyOnSprings.kt
View File

@ -16,6 +16,8 @@ import space.kscience.controls.constructor.models.MaterialPoint
import space.kscience.controls.constructor.units.*
import space.kscience.dataforge.context.Context
import java.awt.Dimension
import kotlin.math.pow
import kotlin.math.sqrt
private class Spring(
@ -31,7 +33,7 @@ private class Spring(
*/
val tension: DeviceState<XYZ<Newtons>> = combineState(begin, end) { begin: XYZ<Meters>, end: XYZ<Meters> ->
val delta = end - begin
val l = delta.length.value
val l = sqrt(delta.x.value.pow(2) + delta.y.value.pow(2) + delta.z.value.pow(2))
((delta / l) * k * (l - l0.value)).cast(Newtons)
}
}
@ -85,7 +87,7 @@ private class BodyOnSprings(
}
fun main() = application {
val initialState = XYZ<Meters>(0, 0.4, 0)
val initialState = XYZ<Meters>(0.01, 0.1, 0)
Window(title = "Ball on springs", onCloseRequest = ::exitApplication) {
window.minimumSize = Dimension(400, 400)

77
demo/constructor/src/jvmMain/kotlin/Plotter.kt
View File

@ -11,10 +11,11 @@ import androidx.compose.ui.graphics.Color
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.application
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.flow.onEach
import kotlinx.coroutines.isActive
import space.kscience.controls.constructor.*
import kotlinx.coroutines.launch
import space.kscience.controls.constructor.DeviceConstructor
import space.kscience.controls.constructor.MutableDeviceState
import space.kscience.controls.constructor.device
import space.kscience.controls.constructor.devices.StepDrive
import space.kscience.controls.constructor.devices.angle
import space.kscience.controls.constructor.models.ScrewDrive
@ -27,7 +28,7 @@ import java.awt.Dimension
import kotlin.random.Random
private class Plotter(
class Plotter(
context: Context,
xDrive: StepDrive,
yDrive: StepDrive,
@ -41,16 +42,16 @@ private class Plotter(
yDrive.target.value = y.toLong()
}
val ticks = combineState(xDrive.position, yDrive.position) { x, y ->
x to y
}
// val position = combineState(xDrive.position, yDrive.position) { x, y ->
// space.kscience.controls.constructor.models.XY(x, y)
// }
//TODO add calibration
// TODO add draw as action
}
private suspend fun Plotter.modernArt(xRange: IntRange, yRange: IntRange) {
suspend fun Plotter.modernArt(xRange: IntRange, yRange: IntRange) {
while (isActive) {
val randomX = Random.nextInt(xRange.first, xRange.last)
val randomY = Random.nextInt(yRange.first, yRange.last)
@ -61,7 +62,7 @@ private suspend fun Plotter.modernArt(xRange: IntRange, yRange: IntRange) {
}
}
private suspend fun Plotter.square(xRange: IntRange, yRange: IntRange) {
suspend fun Plotter.square(xRange: IntRange, yRange: IntRange) {
while (isActive) {
moveToXY(xRange.first, yRange.first)
delay(1000)
@ -93,33 +94,12 @@ private data class PlotterPoint(
val color: Color = Color.Black,
)
private class PlotterModel(
context: Context,
val callback: (PlotterPoint) -> Unit,
) : ModelConstructor(context) {
private val xDrive = StepDrive(context, ticksPerSecond)
private val xTransmission = ScrewDrive(context, NumericalValue(0.01))
val x = xTransmission.degreesToMeters(xDrive.angle(step)).coerceIn(xRange)
private val yDrive = StepDrive(context, ticksPerSecond)
private val yTransmission = ScrewDrive(context, NumericalValue(0.01))
val y = yTransmission.degreesToMeters(yDrive.angle(step)).coerceIn(yRange)
val xy: DeviceState<XY<Meters>> = combineState(x, y) { x, y -> XY(x, y) }
val plotter = Plotter(context, xDrive, yDrive) { color ->
println("Point X: ${x.value.value}, Y: ${y.value.value}, color: $color")
callback(PlotterPoint(x.value, y.value, color))
}
}
suspend fun main() = application {
Window(title = "Pid regulator simulator", onCloseRequest = ::exitApplication) {
window.minimumSize = Dimension(400, 400)
val points = remember { mutableStateListOf<PlotterPoint>() }
var position by remember { mutableStateOf(XY<Meters>(0, 0)) }
var position by remember { mutableStateOf(PlotterPoint(NumericalValue(0), NumericalValue(0))) }
LaunchedEffect(Unit) {
val context = Context {
@ -129,23 +109,42 @@ suspend fun main() = application {
/* Here goes the device definition block */
val plotterModel = PlotterModel(context) { plotterPoint ->
points.add(plotterPoint)
val xDrive = StepDrive(context, ticksPerSecond)
val xTransmission = ScrewDrive(context, NumericalValue(0.01))
val x = xTransmission.degreesToMeters(xDrive.angle(step)).coerceIn(xRange)
val yDrive = StepDrive(context, ticksPerSecond)
val yTransmission = ScrewDrive(context, NumericalValue(0.01))
val y = yTransmission.degreesToMeters(yDrive.angle(step)).coerceIn(yRange)
val plotter = Plotter(context, xDrive, yDrive) { color ->
println("Point X: ${x.value.value}, Y: ${y.value.value}, color: $color")
points.add(PlotterPoint(x.value, y.value, color))
}
/* Start visualization program */
plotterModel.xy.valueFlow.onEach {
position = it
}.launchIn(this)
launch {
x.valueFlow.collect {
position = position.copy(x = it)
}
}
launch {
y.valueFlow.collect {
position = position.copy(y = it)
}
}
/* run program */
launch {
val range = -1000..1000
// plotter.modernArt(range, range)
plotterModel.plotter.square(range, range)
plotter.square(range, range)
}
}