Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | 1x 1x 38094x 38094x 38094x 1x 1x 417x 417x 417x 417x | import Cartesian3 from "./Cartesian3.js";
import Cartographic from "./Cartographic.js";
import DeveloperError from "./DeveloperError.js";
import defined from "./defined.js";
/**
* @private
*/
const VerticalExaggeration = {};
/**
* Scales a height relative to an offset.
*
* @param {number} height The height.
* @param {number} scale A scalar used to exaggerate the terrain. If the value is 1.0 there will be no effect.
* @param {number} relativeHeight The height relative to which terrain is exaggerated. If the value is 0.0 terrain will be exaggerated relative to the ellipsoid surface.
*/
VerticalExaggeration.getHeight = function (height, scale, relativeHeight) {
//>>includeStart('debug', pragmas.debug);
Iif (!Number.isFinite(scale)) {
throw new DeveloperError("scale must be a finite number.");
}
Iif (!Number.isFinite(relativeHeight)) {
throw new DeveloperError("relativeHeight must be a finite number.");
}
//>>includeEnd('debug');
return (height - relativeHeight) * scale + relativeHeight;
};
const scratchCartographic = new Cartographic();
/**
* Scales a position by exaggeration.
*
* @param {Cartesian3} position The position.
* @param {Ellipsoid} ellipsoid The ellipsoid.
* @param {number} verticalExaggeration A scalar used to exaggerate the terrain. If the value is 1.0 there will be no effect.
* @param {number} verticalExaggerationRelativeHeight The height relative to which terrain is exaggerated. If the value is 0.0 terrain will be exaggerated relative to the ellipsoid surface.
* @param {Cartesian3} [result] The object onto which to store the result.
*/
VerticalExaggeration.getPosition = function (
position,
ellipsoid,
verticalExaggeration,
verticalExaggerationRelativeHeight,
result,
) {
const cartographic = ellipsoid.cartesianToCartographic(
position,
scratchCartographic,
);
// If the position is too near the center of the ellipsoid, exaggeration is undefined.
Iif (!defined(cartographic)) {
return Cartesian3.clone(position, result);
}
const newHeight = VerticalExaggeration.getHeight(
cartographic.height,
verticalExaggeration,
verticalExaggerationRelativeHeight,
);
return Cartesian3.fromRadians(
cartographic.longitude,
cartographic.latitude,
newHeight,
ellipsoid,
result,
);
};
export default VerticalExaggeration;
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