Split points and multiline

build.gradle.kts

@@ -10,7 +10,7 @@ val kmathVersion: String by extra("0.3.1-dev-10")
 
 allprojects {
     group = "center.sciprog"
-    version = "0.2.2-dev-4"
+    version = "0.2.2-dev-5"
 
     repositories {
         mavenLocal()

demo/maps/src/jvmMain/kotlin/Main.kt

@@ -8,7 +8,6 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.DpSize
 import androidx.compose.ui.unit.dp
@@ -91,7 +90,7 @@ fun App() {
                 println("line 3 clicked")
             }
 
-            points(
+            multiLine(
                 points = listOf(
                     55.742465 to 37.615812,
                     55.742713 to 37.616370,
@@ -100,7 +99,6 @@ fun App() {
                     55.742086 to 37.616566,
                     55.741715 to 37.616716
                 ),
-                pointMode = PointMode.Polygon
             )
 
             //remember feature ID
@@ -138,13 +136,11 @@ fun App() {
                     println("Click on ${ref.id}")
                     //draw in top-level scope
                     with(this@MapView) {
-                        points(
+                        multiLine(
                             ref.resolve().points,
-                            stroke = 4f,
-                            pointMode = PointMode.Polygon,
                             attributes = Attributes(ZAttribute, 10f),
                             id = "selected",
-                        ).color(Color.Magenta)
+                        ).modifyAttribute(StrokeAttribute, 4f).color(Color.Magenta)
                     }
                 }
             }

demo/polygon-editor/src/jvmMain/kotlin/Main.kt

@@ -6,7 +6,6 @@ import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
 import androidx.compose.runtime.*
 import androidx.compose.runtime.snapshots.SnapshotStateList
-import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.input.pointer.isSecondaryPressed
 import androidx.compose.ui.window.Window
 import androidx.compose.ui.window.application
@@ -26,9 +25,8 @@ fun App() {
         val myPolygon: SnapshotStateList<XY> = remember { mutableStateListOf<XY>() }
 
         val featureState: FeatureGroup<XY> = FeatureGroup.remember(XYCoordinateSpace) {
-            points(
+            multiLine(
                 listOf(XY(0f, 0f), XY(0f, 1f), XY(1f, 1f), XY(1f, 0f), XY(0f, 0f)),
-                pointMode = PointMode.Polygon,
                 id = "frame"
             )
         }
@@ -36,9 +34,8 @@ fun App() {
 
         if(myPolygon.isNotEmpty()) {
             featureState.group("polygon") {
-                points(
+                multiLine(
                     myPolygon + myPolygon.first(),
-                    pointMode = PointMode.Polygon,
                 )
                 myPolygon.forEachIndexed { index, xy ->
                     circle(xy, id = "point[$index]").draggable { _, to ->

maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/mapFeatures.kt

@@ -1,6 +1,5 @@
 package center.sciprog.maps.compose
 
-import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.graphics.drawscope.DrawScope
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.unit.Dp
@@ -83,11 +82,13 @@ public fun FeatureGroup<Gmc>.arc(
 
 public fun FeatureGroup<Gmc>.points(
     points: List<Pair<Double, Double>>,
-    stroke: Float = 2f,
-    pointMode: PointMode = PointMode.Points,
     id: String? = null,
-): FeatureRef<Gmc, PointsFeature<Gmc>> =
+): FeatureRef<Gmc, PointsFeature<Gmc>> = feature(id, PointsFeature(space, points.map(::coordinatesOf)))
-    feature(id, PointsFeature(space, points.map(::coordinatesOf),  stroke,  pointMode))
+
+public fun FeatureGroup<Gmc>.multiLine(
+    points: List<Pair<Double, Double>>,
+    id: String? = null,
+): FeatureRef<Gmc, MultiLineFeature<Gmc>> = feature(id, MultiLineFeature(space, points.map(::coordinatesOf)))
 
 public fun FeatureGroup<Gmc>.image(
     position: Pair<Double, Double>,

maps-kt-features/src/commonMain/kotlin/center/sciprog/maps/features/Feature.kt

@@ -3,7 +3,10 @@ package center.sciprog.maps.features
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.Stable
 import androidx.compose.ui.geometry.Rect
-import androidx.compose.ui.graphics.*
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.Path
 import androidx.compose.ui.graphics.drawscope.DrawScope
 import androidx.compose.ui.graphics.drawscope.DrawStyle
 import androidx.compose.ui.graphics.drawscope.Fill
@@ -112,8 +115,6 @@ public data class PathFeature<T : Any>(
 public data class PointsFeature<T : Any>(
     override val space: CoordinateSpace<T>,
     public val points: List<T>,
-    public val stroke: Float = 2f,
-    public val pointMode: PointMode = PointMode.Points,
     override val attributes: Attributes = Attributes.EMPTY,
 ) : Feature<T> {
 
@@ -125,6 +126,59 @@ public data class PointsFeature<T : Any>(
     override fun withAttributes(modify: (Attributes) -> Attributes): Feature<T> = copy(attributes = modify(attributes))
 }
 
+
+public interface LineSegmentFeature<T : Any> : Feature<T>
+
+@Stable
+public data class LineFeature<T : Any>(
+    override val space: CoordinateSpace<T>,
+    public val a: T,
+    public val b: T,
+    override val attributes: Attributes = Attributes.EMPTY,
+) : DomainFeature<T>, LineSegmentFeature<T> {
+    override fun getBoundingBox(zoom: Float): Rectangle<T> =
+        space.Rectangle(a, b)
+
+    override fun contains(viewPoint: ViewPoint<T>): Boolean = with(space) {
+        viewPoint.focus in getBoundingBox(viewPoint.zoom) && viewPoint.focus.distanceToLine(
+            a,
+            b,
+            viewPoint.zoom
+        ).value < clickRadius
+    }
+
+    override fun withAttributes(modify: (Attributes) -> Attributes): Feature<T> = copy(attributes = modify(attributes))
+}
+
+public data class MultiLineFeature<T : Any>(
+    override val space: CoordinateSpace<T>,
+    public val points: List<T>,
+    override val attributes: Attributes = Attributes.EMPTY,
+) : DomainFeature<T>, LineSegmentFeature<T> {
+
+    private val boundingBox by lazy {
+        with(space) { points.wrapPoints() }
+    }
+
+    override fun getBoundingBox(zoom: Float): Rectangle<T>? = boundingBox
+    override fun withAttributes(modify: (Attributes) -> Attributes): Feature<T> = copy(attributes = modify(attributes))
+
+    override fun contains(viewPoint: ViewPoint<T>): Boolean = with(space) {
+        val boundingBox = getBoundingBox(viewPoint.zoom) ?: return@with false
+        viewPoint.focus in boundingBox && points.zipWithNext().minOf { (a, b) ->
+            viewPoint.focus.distanceToLine(
+                a,
+                b,
+                viewPoint.zoom
+            ).value
+        } < clickRadius
+    }
+}
+
+
+private val <T : Any, F : LineSegmentFeature<T>> F.clickRadius get() = attributes[ClickRadius] ?: 10f
+
+
 @Stable
 public data class PolygonFeature<T : Any>(
     override val space: CoordinateSpace<T>,
@@ -176,29 +230,6 @@ public data class RectangleFeature<T : Any>(
     override fun withAttributes(modify: (Attributes) -> Attributes): Feature<T> = copy(attributes = modify(attributes))
 }
 
-@Stable
-public data class LineFeature<T : Any>(
-    override val space: CoordinateSpace<T>,
-    public val a: T,
-    public val b: T,
-    override val attributes: Attributes = Attributes.EMPTY,
-) : DomainFeature<T> {
-    override fun getBoundingBox(zoom: Float): Rectangle<T> =
-        space.Rectangle(a, b)
-
-    private val clickRadius get() = attributes[ClickRadius] ?: 10f
-
-    override fun contains(viewPoint: ViewPoint<T>): Boolean = with(space) {
-        viewPoint.focus in getBoundingBox(viewPoint.zoom) && viewPoint.focus.distanceToLine(
-            a,
-            b,
-            viewPoint.zoom
-        ).value < clickRadius
-    }
-
-    override fun withAttributes(modify: (Attributes) -> Attributes): Feature<T> = copy(attributes = modify(attributes))
-}
-
 /**
  * @param startAngle the angle from 3 o'clock downwards for the start of the arc in radians
  * @param arcLength arc length in radians

maps-kt-features/src/commonMain/kotlin/center/sciprog/maps/features/FeatureGroup.kt

@@ -4,7 +4,6 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.mutableStateMapOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.snapshots.SnapshotStateMap
-import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.graphics.drawscope.DrawScope
 import androidx.compose.ui.graphics.painter.Painter
 import androidx.compose.ui.graphics.vector.ImageVector
@@ -156,56 +155,68 @@ public inline fun <T : Any, reified F : Feature<T>> FeatureGroup<T>.forEachWithT
 public fun <T : Any> FeatureGroup<T>.circle(
     center: T,
     size: Dp = 5.dp,
+    attributes: Attributes = Attributes.EMPTY,
     id: String? = null,
 ): FeatureRef<T, CircleFeature<T>> = feature(
-    id, CircleFeature(space, center, size)
+    id, CircleFeature(space, center, size, attributes)
 )
 
 public fun <T : Any> FeatureGroup<T>.rectangle(
     centerCoordinates: T,
     size: DpSize = DpSize(5.dp, 5.dp),
+    attributes: Attributes = Attributes.EMPTY,
     id: String? = null,
 ): FeatureRef<T, RectangleFeature<T>> = feature(
-    id, RectangleFeature(space, centerCoordinates, size)
+    id, RectangleFeature(space, centerCoordinates, size, attributes)
 )
 
 public fun <T : Any> FeatureGroup<T>.draw(
     position: T,
+    attributes: Attributes = Attributes.EMPTY,
     id: String? = null,
     draw: DrawScope.() -> Unit,
 ): FeatureRef<T, DrawFeature<T>> = feature(
     id,
-    DrawFeature(space, position, drawFeature = draw)
+    DrawFeature(space, position, drawFeature = draw, attributes = attributes)
 )
 
 public fun <T : Any> FeatureGroup<T>.line(
     aCoordinates: T,
     bCoordinates: T,
+    attributes: Attributes = Attributes.EMPTY,
     id: String? = null,
 ): FeatureRef<T, LineFeature<T>> = feature(
     id,
-    LineFeature(space, aCoordinates, bCoordinates)
+    LineFeature(space, aCoordinates, bCoordinates, attributes)
 )
 
 public fun <T : Any> FeatureGroup<T>.arc(
     oval: Rectangle<T>,
     startAngle: Angle,
     arcLength: Angle,
+    attributes: Attributes = Attributes.EMPTY,
     id: String? = null,
 ): FeatureRef<T, ArcFeature<T>> = feature(
     id,
-    ArcFeature(space, oval, startAngle, arcLength)
+    ArcFeature(space, oval, startAngle, arcLength, attributes)
 )
 
 public fun <T : Any> FeatureGroup<T>.points(
     points: List<T>,
-    stroke: Float = 2f,
-    pointMode: PointMode = PointMode.Points,
     attributes: Attributes = Attributes.EMPTY,
     id: String? = null,
 ): FeatureRef<T, PointsFeature<T>> = feature(
     id,
-    PointsFeature(space, points, stroke, pointMode, attributes)
+    PointsFeature(space, points, attributes)
+)
+
+public fun <T : Any> FeatureGroup<T>.multiLine(
+    points: List<T>,
+    attributes: Attributes = Attributes.EMPTY,
+    id: String? = null,
+): FeatureRef<T, MultiLineFeature<T>> = feature(
+    id,
+    MultiLineFeature(space, points, attributes)
 )
 
 public fun <T : Any> FeatureGroup<T>.polygon(

maps-kt-features/src/commonMain/kotlin/center/sciprog/maps/features/mapFeatureAttributes.kt

@@ -32,8 +32,18 @@ public object VisibleAttribute : Attribute<Boolean>
 
 public object ColorAttribute : Attribute<Color>
 
+
+public fun <T : Any, F : Feature<T>> FeatureRef<T, F>.color(color: Color): FeatureRef<T, F> =
+    modifyAttribute(ColorAttribute, color)
+
+
 public object ZoomRangeAttribute : Attribute<FloatRange>
 
+
+public fun <T : Any, F : Feature<T>> FeatureRef<T, F>.zoomRange(range: FloatRange): FeatureRef<T, F> =
+    modifyAttribute(ZoomRangeAttribute, range)
+
+
 public object AlphaAttribute : Attribute<Float>
 
 public fun <T : Any, F : Feature<T>> FeatureRef<T, F>.modifyAttributes(modify: AttributesBuilder.() -> Unit): FeatureRef<T, F> {
@@ -47,7 +57,10 @@ public fun <T : Any, F : Feature<T>> FeatureRef<T, F>.modifyAttributes(modify: A
     return this
 }
 
-public fun <T : Any, F : Feature<T>, V>  FeatureRef<T, F>.modifyAttribute(key: Attribute<V>, value: V?): FeatureRef<T, F>{
+public fun <T : Any, F : Feature<T>, V> FeatureRef<T, F>.modifyAttribute(
+    key: Attribute<V>,
+    value: V?,
+): FeatureRef<T, F> {
     @Suppress("UNCHECKED_CAST")
     parent.feature(id, resolve().withAttributes { withAttribute(key, value) } as F)
     return this
@@ -59,10 +72,10 @@ public fun <T : Any, F : Feature<T>, V>  FeatureRef<T, F>.modifyAttribute(key: A
  * @param constraint optional drag constraint
  */
 @Suppress("UNCHECKED_CAST")
-public fun <T: Any, F : DraggableFeature<T>> FeatureRef<T, F>.draggable(
+public fun <T : Any, F : DraggableFeature<T>> FeatureRef<T, F>.draggable(
     constraint: ((T) -> T)? = null,
     listener: (PointerEvent.(from: ViewPoint<T>, to: ViewPoint<T>) -> Unit)? = null,
-): FeatureRef<T, F> = with(parent){
+): FeatureRef<T, F> = with(parent) {
     if (attributes[DraggableAttribute] == null) {
         val handle = DragHandle.withPrimaryButton<Any> { event, start, end ->
             val feature = featureMap[id] as? DraggableFeature<T> ?: return@withPrimaryButton DragResult(end)
@@ -112,7 +125,7 @@ public fun <T : Any, F : DomainFeature<T>> FeatureRef<T, F>.onClick(
 
 @OptIn(ExperimentalFoundationApi::class)
 @Suppress("UNCHECKED_CAST")
-public fun <T: Any, F : DomainFeature<T>> FeatureRef<T, F>.onClick(
+public fun <T : Any, F : DomainFeature<T>> FeatureRef<T, F>.onClick(
     pointerMatcher: PointerMatcher,
     keyboardModifiers: PointerKeyboardModifiers.() -> Boolean = { true },
     onClick: PointerEvent.(click: ViewPoint<T>) -> Unit,
@@ -127,7 +140,7 @@ public fun <T: Any, F : DomainFeature<T>> FeatureRef<T, F>.onClick(
 }
 
 @Suppress("UNCHECKED_CAST")
-public fun <T: Any, F : DomainFeature<T>> FeatureRef<T, F>.onHover(
+public fun <T : Any, F : DomainFeature<T>> FeatureRef<T, F>.onHover(
     onClick: PointerEvent.(move: ViewPoint<T>) -> Unit,
 ): FeatureRef<T, F> = modifyAttributes {
     HoverListenerAttribute.add(
@@ -147,15 +160,13 @@ public fun <T: Any, F : DomainFeature<T>> FeatureRef<T, F>.onHover(
 //        )
 //    }
 
-public fun <T: Any, F : Feature<T>> FeatureRef<T, F>.color(color: Color): FeatureRef<T, F> =
-    modifyAttribute(ColorAttribute, color)
 
-public fun <T: Any, F : Feature<T>> FeatureRef<T, F>.zoomRange(range: FloatRange): FeatureRef<T, F> =
+public object PathEffectAttribute : Attribute<PathEffect>
-    modifyAttribute(ZoomRangeAttribute, range)
 
-
+public fun <T : Any> FeatureRef<T, LineSegmentFeature<T>>.pathEffect(effect: PathEffect): FeatureRef<T, LineSegmentFeature<T>> =
-
-public object PathEffectAttribute: Attribute<PathEffect>
-
-public fun <T: Any> FeatureRef<T, PointsFeature<T>>.pathEffect(effect: PathEffect): FeatureRef<T, PointsFeature<T>> =
     modifyAttribute(PathEffectAttribute, effect)
+
+public object StrokeAttribute : Attribute<Float>
+
+public fun <T : Any, F : LineSegmentFeature<T>> FeatureRef<T, F>.stroke(width: Float): FeatureRef<T, F> =
+    modifyAttribute(StrokeAttribute, width)

maps-kt-features/src/jvmMain/kotlin/center/sciprog/maps/compose/clickGestures.kt

@@ -94,13 +94,13 @@ public suspend fun PointerInputScope.detectClicks(
             if (upOrCancel != null) {
                 // tap was successful.
                 if (onDoubleClick == null) {
-                    onClick?.invoke(this, upOrCancel) // no need to check for double-tap.
+                    onClick?.invoke(this, down) // no need to check for double-tap.
                 } else {
                     // check for second tap
                     val secondDown = awaitSecondDown(upOrCancel.firstChange)
 
                     if (secondDown == null) {
-                        onClick?.invoke(this, upOrCancel) // no valid second tap started
+                        onClick?.invoke(this, down) // no valid second tap started
                     } else {
                         // Second tap down detected
                         pressScope.reset()
@@ -115,16 +115,16 @@ public suspend fun PointerInputScope.detectClicks(
                                 if (secondUp != null) {
                                     secondUp.consume()
                                     pressScope.release()
-                                    onDoubleClick(down)
+                                    onDoubleClick(secondDown)
                                 } else {
                                     pressScope.cancel()
-                                    onClick?.invoke(this, upOrCancel)
+                                    onClick?.invoke(this, down)
                                 }
                             }
                         } catch (e: PointerEventTimeoutCancellationException) {
                             // The first tap was valid, but the second tap is a long press.
                             // notify for the first tap
-                            onClick?.invoke(this, upOrCancel)
+                            onClick?.invoke(this, down)
 
                             // notify for the long press
                             onLongClick?.invoke(this, secondDown)
@@ -209,7 +209,6 @@ private suspend fun AwaitPointerEventScope.awaitSecondDown(
 /**
  * Reads events until the first down is received. If [requireUnconsumed] is `true` and the first
  * down is consumed in the [PointerEventPass.Main] pass, that gesture is ignored.
- * If it was down caused by [PointerType.Mouse], this function reacts only on primary button.
  */
 internal suspend fun AwaitPointerEventScope.awaitFirstDownEvent(
     requireUnconsumed: Boolean = true,

maps-kt-features/src/jvmMain/kotlin/center/sciprog/maps/features/drawFeature.kt

@@ -2,15 +2,12 @@ package center.sciprog.maps.features
 
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.geometry.Size
-import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.*
-import androidx.compose.ui.graphics.Path
 import androidx.compose.ui.graphics.drawscope.DrawScope
 import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.graphics.drawscope.drawIntoCanvas
 import androidx.compose.ui.graphics.drawscope.translate
-import androidx.compose.ui.graphics.nativeCanvas
 import androidx.compose.ui.graphics.painter.Painter
-import androidx.compose.ui.graphics.toArgb
 import center.sciprog.attributes.plus
 import org.jetbrains.skia.Font
 import org.jetbrains.skia.Paint
@@ -28,7 +25,7 @@ public fun <T : Any> DrawScope.drawFeature(
     feature: Feature<T>,
 ): Unit = with(state) {
     val color = feature.color ?: Color.Red
-    val alpha = feature.attributes[AlphaAttribute]?:1f
+    val alpha = feature.attributes[AlphaAttribute] ?: 1f
     fun T.toOffset(): Offset = toOffset(this@drawFeature)
 
     when (feature) {
@@ -48,7 +45,14 @@ public fun <T : Any> DrawScope.drawFeature(
             size = feature.size.toSize()
         )
 
-        is LineFeature -> drawLine(color, feature.a.toOffset(), feature.b.toOffset())
+        is LineFeature -> drawLine(
+            color,
+            feature.a.toOffset(),
+            feature.b.toOffset(),
+            strokeWidth = feature.attributes[StrokeAttribute] ?: Stroke.HairlineWidth,
+            pathEffect = feature.attributes[PathEffectAttribute]
+        )
+
         is ArcFeature -> {
             val dpRect = feature.oval.toDpRect().toRect()
 
@@ -119,8 +123,20 @@ public fun <T : Any> DrawScope.drawFeature(
             drawPoints(
                 points = points,
                 color = color,
-                strokeWidth = feature.stroke,
+                strokeWidth = feature.attributes[StrokeAttribute] ?: Stroke.HairlineWidth,
-                pointMode = feature.pointMode,
+                pointMode = PointMode.Points,
+                pathEffect = feature.attributes[PathEffectAttribute],
+                alpha = alpha
+            )
+        }
+
+        is MultiLineFeature -> {
+            val points = feature.points.map { it.toOffset() }
+            drawPoints(
+                points = points,
+                color = color,
+                strokeWidth = feature.attributes[StrokeAttribute] ?: Stroke.HairlineWidth,
+                pointMode = PointMode.Polygon,
                 pathEffect = feature.attributes[PathEffectAttribute],
                 alpha = alpha
             )
@@ -131,8 +147,8 @@ public fun <T : Any> DrawScope.drawFeature(
             val last = points.last()
             val polygonPath = Path()
             polygonPath.moveTo(last.x, last.y)
-            for ((x,y) in points){
+            for ((x, y) in points) {
-                polygonPath.lineTo(x,y)
+                polygonPath.lineTo(x, y)
             }
             drawPath(
                 path = polygonPath,

maps-kt-geojson/src/commonMain/kotlin/center/sciprog/maps/geojson/geoJsonToMap.kt

@@ -1,7 +1,6 @@
 package center.sciprog.maps.geojson
 
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.PointMode
 import center.sciprog.attributes.NameAttribute
 import center.sciprog.maps.coordinates.Gmc
 import center.sciprog.maps.features.*
@@ -17,23 +16,18 @@ public fun FeatureGroup<Gmc>.geoJsonGeometry(
     geometry: GeoJsonGeometry,
     id: String? = null,
 ): FeatureRef<Gmc, Feature<Gmc>> = when (geometry) {
-    is GeoJsonLineString -> points(
+    is GeoJsonLineString -> multiLine(
         geometry.coordinates,
-        pointMode = PointMode.Lines
     )
 
     is GeoJsonMultiLineString -> group(id = id) {
         geometry.coordinates.forEach {
-            points(
+            multiLine(it)
-                it,
-                pointMode = PointMode.Lines
-            )
         }
     }
 
     is GeoJsonMultiPoint -> points(
         geometry.coordinates,
-        pointMode = PointMode.Points
     )
 
     is GeoJsonMultiPolygon -> group(id = id) {

maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/schemeFeatures.kt

@@ -51,7 +51,7 @@ fun FeatureGroup<XY>.line(
     aCoordinates: Pair<Number, Number>,
     bCoordinates: Pair<Number, Number>,
     id: String? = null,
-): FeatureRef<XY, LineFeature<XY>> = line(aCoordinates.toCoordinates(), bCoordinates.toCoordinates(), id)
+): FeatureRef<XY, LineFeature<XY>> = line(aCoordinates.toCoordinates(), bCoordinates.toCoordinates(), id = id)
 
 
 public fun FeatureGroup<XY>.arc(

maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/svg/exportToSvg.kt

@@ -4,6 +4,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.graphics.drawscope.drawIntoCanvas
 import androidx.compose.ui.graphics.drawscope.translate
@@ -77,6 +78,30 @@ fun FeatureStateSnapshot<XY>.generateSvg(
                 alpha = alpha
             )
 
+            is PointsFeature -> {
+                val points = feature.points.map { it.toOffset() }
+                drawPoints(
+                    points = points,
+                    color = color,
+                    strokeWidth = feature.attributes[StrokeAttribute] ?: Stroke.HairlineWidth,
+                    pointMode = PointMode.Points,
+                    pathEffect = feature.attributes[PathEffectAttribute],
+                    alpha = alpha
+                )
+            }
+
+            is MultiLineFeature -> {
+                val points = feature.points.map { it.toOffset() }
+                drawPoints(
+                    points = points,
+                    color = color,
+                    strokeWidth = feature.attributes[StrokeAttribute] ?: Stroke.HairlineWidth,
+                    pointMode = PointMode.Polygon,
+                    pathEffect = feature.attributes[PathEffectAttribute],
+                    alpha = alpha
+                )
+            }
+
             is ArcFeature -> {
                 val topLeft = feature.oval.leftTop.toOffset()
                 val bottomRight = feature.oval.rightBottom.toOffset()