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I am working withe Cesium 3D at the moment and want to determine what the equivalent map scale the globe is being viewed at.

I am able to get the viewing altitude in Meters that he Camera is at, but according to thisthis discussion, I would need the eye distance from the surface as well, and I do not understand this.

My ultimate aim is to determine a map scale, convert that to an Openlayers 2 Zoom Level so I can sync the two views (approximately)

I am working withe Cesium 3D at the moment and want to determine what the equivalent map scale the globe is being viewed at.

I am able to get the viewing altitude in Meters that he Camera is at, but according to this discussion, I would need the eye distance from the surface as well, and I do not understand this.

My ultimate aim is to determine a map scale, convert that to an Openlayers 2 Zoom Level so I can sync the two views (approximately)

I am working withe Cesium 3D at the moment and want to determine what the equivalent map scale the globe is being viewed at.

I am able to get the viewing altitude in Meters that he Camera is at, but according to this discussion, I would need the eye distance from the surface as well, and I do not understand this.

My ultimate aim is to determine a map scale, convert that to an Openlayers 2 Zoom Level so I can sync the two views (approximately)

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Mark Cupitt
Mark Cupitt
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Cesium 3D - Determining the Map Scale of the viewed Globe

I am working withe Cesium 3D at the moment and want to determine what the equivalent map scale the globe is being viewed at.

I am able to get the viewing altitude in Meters that he Camera is at, but according to this discussion, I would need the eye distance from the surface as well, and I do not understand this.

My ultimate aim is to determine a map scale, convert that to an Openlayers 2 Zoom Level so I can sync the two views (approximately)