Chartsanimated

Treemap

A treemap of proportional tiles that scale in to map a hierarchy's weights.

Installation

caveui components are copy-paste Jetpack Compose built entirely on Material 3 — there's no caveui dependency to add. Make sure Material 3 is on your classpath (it ships with the Compose BOM), then copy the Usage snippet below into your project.

kotlin

// build.gradle.kts (module)
dependencies {
    implementation(platform("androidx.compose:compose-bom:2025.06.00"))
    implementation("androidx.compose.material3:material3")
}

Usage

kotlin

@Composable
fun Treemap(
    tiles: List<Pair<Rect, Color>> = remember { sampleTreemap() },
    modifier: Modifier = Modifier,
) {
    val grow by animateFloatAsState(1f, tween(800, easing = EaseOutBack), label = "g")
    Canvas(modifier.size(180.dp, 130.dp)) {
        tiles.forEach { (rect, color) ->
            val cx = rect.center.x * size.width
            val cy = rect.center.y * size.height
            val w = rect.width * size.width * grow
            val h = rect.height * size.height * grow
            drawRoundRect(
                color,
                Offset(cx - w / 2, cy - h / 2),
                Size(w, h),
                CornerRadius(4.dp.toPx()),
            )
        }
    }
}