Viewer.camera.pitch

CesiumJS
1

We need a source that will fix the camera when the cesium ‘viewer.camera.pitch’ value goes below a certain value.

2

Hi @11167
I hope this code can help you.

var viewer = new Cesium.Viewer("cesiumContainer", {
  terrainProvider: await Cesium.createWorldTerrainAsync()
});

var pitchLimit = Cesium.Math.toRadians(-15); //set pitch limit as -15

viewer.scene.preRender.addEventListener(function () {
  var camera = viewer.camera;

  var pitch = camera.pitch;

  if (pitch < pitchLimit) {
    var clampedPitch = Cesium.Math.clamp(pitch, pitchLimit, Cesium.Math.PI_OVER_TWO);
    camera.setView({
      destination: camera.position,
      orientation: {
        heading: camera.heading,
        pitch: clampedPitch,
        roll: camera.roll,
      },
    });
  }
});

viewer.entities.add({
  position: Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883, 100),
  point: {
    pixelSize: 10,
    color: Cesium.Color.RED,
  },
});

viewer.zoomTo(viewer.entities);

Cesium sandcastle here: