mirror of
https://github.com/bilawalsidhu/gods-eye-view.git
synced 2026-11-04 10:24:02 +00:00
Mazeyar Moeini Feizabadi
5ea6d81310
Normalize GeoJSON ground footprints, preserve explicit KML track heights, and tessellate ground paths before native loading. Validate coordinates, geometry types and decoded image budgets before allocating native resources; strip loader-sensitive metadata and settle deferred failures and cancellation. Render static pins in owned billboard collections instead of walking tens of thousands of point entities each frame. Refine nearby ground heights in batches, isolate imported pins from height picks, and release owned resources and point selections on removal. Use safe ray origins above a hidden coarse globe and retain valid mesh heights outside the current footprint. Frame complete geometry with viewport-aware nadir arrivals, including walls and rotated overlays; respect camera gestures and accept document file drops. Strengthen real-loader, native 3D Tiles, paint, clock and lifecycle coverage. Addresses both P1 and all 25 P2 findings in the follow-up review of #1122.
16 lines
819 B
JavaScript
16 lines
819 B
JavaScript
import * as Cesium from 'cesium';
|
|
|
|
/** Camera range with breathing room in both viewport dimensions. */
|
|
export function rangeForBoundingSphere(viewer, radius) {
|
|
const frustum = viewer.camera?.frustum;
|
|
const verticalFov = Number(frustum?.fov) || Cesium.Math.toRadians(60);
|
|
const aspectRatio = Math.max(0.5, Number(frustum?.aspectRatio) || 1);
|
|
const horizontalFov = 2 * Math.atan(Math.tan(verticalFov / 2) * aspectRatio);
|
|
const limitingFov = Math.min(verticalFov, horizontalFov);
|
|
// Target 57% sphere occupancy so perspective still leaves at least 40%
|
|
// measured roof-to-base breathing room in ordinary oblique building views.
|
|
const occupiedViewportFraction = 0.57;
|
|
const desiredAngularRadius = (limitingFov * occupiedViewportFraction) / 2;
|
|
return (radius / Math.sin(desiredAngularRadius)) * 1.05;
|
|
}
|