/*

*?@Description:?坐標(biāo)轉(zhuǎn)換工具，下面的坐標(biāo)轉(zhuǎn)換默認(rèn)都是基于WGS84?橢球體

*/

class?Degrees?{

constructor(longitude,?latitude,?height?=?0)?{

this.longitude?=?longitude;

this.latitude?=?latitude;

this.height?=?height;

}

}

Cesium.Degrees?=?Degrees;//不建議這樣直接修改Cesium原始對象

class?Tramsform?{

/**

*?@description:?弧度轉(zhuǎn)度

*?@param?{Number}?value

*?@return?{Number}

*/

toDegrees(value)?{

return?Cesium.Math.toDegrees(value)

}

/**

*?@description:?度轉(zhuǎn)弧度

*/

toRadians(value)?{

return?Cesium.Math.toRadians(value)

}

/**

*?@description:?經(jīng)緯度(度)轉(zhuǎn)世界坐標(biāo)

*?@param?{Degrees}?degrees.longitude?經(jīng)度?degrees.latitude?緯度?degrees.height高度

*?@return?{Cartesian3}?世界坐標(biāo)

*/

degreesToCartesian(degrees)?{

return?Cesium.Cartesian3.fromDegrees(degrees.longitude,?degrees.latitude,?degrees.height)

}

/*

*?@description:?世界坐標(biāo)轉(zhuǎn)?經(jīng)緯度(度)

*?@param?{Cartesian3}?cartesian?世界坐標(biāo)

*?@return?{Cartographic}??返回轉(zhuǎn)換之后的經(jīng)緯度

*/

degreesFromCartesian(cartesian)?{

let?cartographic?=?this.cartographicFromCartesian(cartesian);

return?this.degreesFromCartographic(cartographic);

}

/*

*?@description:?經(jīng)緯度(度)轉(zhuǎn)經(jīng)緯度(弧度)

*?@param?{*}?degrees

*?@return?{*}

*/

degreesToCartographic(degrees)?{

degrees.longitude?=?this.toRadians(degrees.longitude);

degrees.latitude?=?this.toRadians(degrees.latitude);

return?degrees;

}

/**

*?@description:?經(jīng)緯度(弧度)轉(zhuǎn)經(jīng)緯度(度)

*?@param?{Cartographic}?cartographic

*?@return?{*}?返回經(jīng)緯度(度)

*/

degreesFromCartographic(cartographic)?{

cartographic.longitude?=?this.toDegrees(cartographic.longitude);

cartographic.latitude?=?this.toDegrees(cartographic.latitude);

return?cartographic;

}

/**

*?@description:?經(jīng)緯度(度)坐標(biāo)轉(zhuǎn)web墨卡托坐標(biāo)

*?@param?{Cartographic}?degrees

*?@return?{Cartesian3}?web墨卡托坐標(biāo)

*/

degreesToWebMercatorProjection(degrees)?{

var?webMercatorProjection?=?new?Cesium.WebMercatorProjection();

return?webMercatorProjection.project(this.degreesToCartesian(degrees))

}

/**

*?@description:?web墨卡托轉(zhuǎn)經(jīng)緯度(度)

*?@param?{Cartesian3}?cartesian

*?@return?{Cartographic}?經(jīng)緯度(度)坐標(biāo)

*/

degreesFromWebMercatorProjection(cartesian)?{

var?webMercatorProjection?=?new?Cesium.WebMercatorProjection();

return?this.degreesFromCartographic(webMercatorProjection.unproject(cartesian))

}

/**

*?@description:?弧度坐標(biāo)轉(zhuǎn)世界坐標(biāo)

*?@param?{Cartographic}???cartographic.longitude?經(jīng)度

*?@param?{Cartographic}???cartographic.latitude?緯度

*?@param?{Cartographic}???cartographic.height?高度

*?@return?{Cartesian3}?世界坐標(biāo)

*/

cartographicToCartesian(cartographic)?{

return?Cesium.Cartographic.toCartesian(cartographic)

}

/**

*?@description:?世界坐標(biāo)轉(zhuǎn)經(jīng)緯度弧度

*?@param?{Cartesian3}?cartesian?世界坐標(biāo)

*?@return?{Cartographic}??返回轉(zhuǎn)換之后的經(jīng)緯度弧度坐標(biāo)

*/

cartographicFromCartesian(cartesian)?{

return?Cesium.Cartographic.fromCartesian(cartesian)

}

/**

*?@description:?經(jīng)緯度度轉(zhuǎn)經(jīng)緯度弧度

*?@param?{Degrees}?degrees.longitude?經(jīng)度?degrees.latitude?緯度?degrees.height高度

*?@return?{*}

*/

cartographicFromDegrees(degrees)?{

return?this.degreesToCartographic(degrees)

}

/**

*?@description:?經(jīng)緯度(弧度)轉(zhuǎn)經(jīng)緯度(度)

*?@param?{Cartographic}?cartographic

*?@return?{*}?返回經(jīng)緯度(度)

*/

cartographicToDegrees(cartographic)?{

return?this.degreesFromCartographic(cartographic)

}

/**

*?@description:?經(jīng)緯度(弧度)坐標(biāo)轉(zhuǎn)web墨卡托坐標(biāo)

*?@param?{Cartographic}?cartographic

*?@return?{Cartesian3}?web墨卡托坐標(biāo)

*/

cartographicToWebMercatorProjection(cartographic)?{

var?webMercatorProjection?=?new?Cesium.WebMercatorProjection();

return?webMercatorProjection.project(cartographic)

}

/**

*?@description:?web墨卡托轉(zhuǎn)經(jīng)緯度(弧度)

*?@param?{Cartesian3}?cartesian

*?@return?{Cartographic}?弧度坐標(biāo)

*/

cartographicFromWebMercatorProjection(cartesian)?{

var?webMercatorProjection?=?new?Cesium.WebMercatorProjection();

return?webMercatorProjection.unproject(cartesian)

}

/*

*?@description:?世界坐標(biāo)轉(zhuǎn)?經(jīng)緯度(度)

*?@param?{Cartesian3}?cartesian?世界坐標(biāo)

*?@return?{Cartographic}??返回轉(zhuǎn)換之后的經(jīng)緯度

*/

cartesianToDegrees(cartesian)?{

return?this.degreesFromCartesian(cartesian)

}

/**

*?@description:?經(jīng)緯度(度)轉(zhuǎn)世界坐標(biāo)

*?@param?{Degrees}?degrees.longitude?經(jīng)度?degrees.latitude?緯度?degrees.height高度

*?@return?{Cartesian3}?世界坐標(biāo)

*/

cartesianFormDegrees(degrees)?{

return?this.degreesToCartesian(degrees)

}

/**

*?@description:?世界坐標(biāo)轉(zhuǎn)經(jīng)緯度(弧度)

*?@param?{Cartesian3}?cartesian?世界坐標(biāo)

*?@return?{Cartographic}??返回轉(zhuǎn)換之后的經(jīng)緯度弧度坐標(biāo)

*/

cartesianToCartographic(cartesian)?{

return?this.cartographicFromCartesian(cartesian)

}

/**

*?@description:?弧度坐標(biāo)轉(zhuǎn)世界坐標(biāo)

*?@param?{Cartographic}??cartographic.longitude?經(jīng)度

*?@param?{Cartographic}??cartographic.latitude?緯度

*?@param?{Cartographic}??cartographic.height?高度

*?@return?{Cartesian3}?世界坐標(biāo)

*/

cartesianFromCartographic(cartographic)?{

return?this.cartographicToCartesian(cartographic)

}

/**

*?@description:?世界坐標(biāo)坐標(biāo)轉(zhuǎn)web墨卡托坐標(biāo)

*?@param?{Cartographic}?degrees

*?@return?{Cartesian3}?web墨卡托坐標(biāo)

*/

cartesianToWebMercatorProjection(cartesian)?{

var?webMercatorProjection?=?new?Cesium.WebMercatorProjection();

return?webMercatorProjection.project(this.cartesianToCartographic(cartesian))

}

/**

*?@description:?web墨卡托轉(zhuǎn)世界坐標(biāo)

*?@param?{Cartesian3}?cartesian

*?@return?{Cartographic}?世界坐標(biāo)

*/

cartesianFromWebMercatorProjection(cartesian)?{

var?webMercatorProjection?=?new?Cesium.WebMercatorProjection();

return?this.cartesianFromCartographic(webMercatorProjection.unproject(cartesian))

}

/**

*?@description:?世界坐標(biāo)轉(zhuǎn)屏幕坐標(biāo)

*?@param?{Cartesian3}?cartesian

*?@return?{Cartesian2}?屏幕坐標(biāo)

*/

cartesianToWindowCoordinates(scene,?cartesian)?{

return?Cesium.SceneTransforms.wgs84ToWindowCoordinates(scene,?cartesian)

}

/**

*?@description:?從4*4矩陣中得到平移位置

*?@param?{Matrix4}?mat4?4*4矩陣

*?@return?{Cartesian3}?返回位置信息

*/

getTranslationFromMatrix4(mat4,?result)?{

if?(!result)?result?=?new?Cesium.Cartesian3();

return?Cesium.Matrix4.getTranslation(mat4,?result)

}

/**

*?@description:?返回x,y,z方向的比例尺信息

*?@param?{Matrix4}?mat4?4*4矩陣

*?@param?{Cartesian3}?result?用于儲存結(jié)果

*?@return?{Cartesian3}?返回x,y,z方向的比例尺信息

*/

getScaleFromMatrix4(mat4,?result)?{

if?(!result)?result?=?new?Cesium.Cartesian3();

return?Cesium.Matrix4.getScale(mat4,?result)

}

/**

*?@description:?將3*3旋轉(zhuǎn)矩陣轉(zhuǎn)換成齊次坐標(biāo)

*?@param?{Matrix4}?matrix?3*3矩陣

*?@param?{Quaternion}?result?儲存結(jié)果

*?@return?{Quaternion}?返回齊次坐標(biāo)

*/

quaternionFromRotationMatrix(matrix,?result)?{

return?Cesium.Quaternion.fromRotationMatrix(matrix,?result)

}

/**

*?@description:?將歐拉角轉(zhuǎn)成齊次坐標(biāo)

*?@param?{HeadingPitchRoll}?headingPitchRoll

*?@param?{Quaternion}?result?儲存結(jié)果

*?@return?{Quaternion}?返回齊次坐標(biāo)

*/

quaternionfromHeadingPitchRoll(headingPitchRoll,?result)?{

return?Cesium.Quaternion.fromHeadingPitchRoll(headingPitchRoll,?result)

}

/**

*?@description:?將齊次坐標(biāo)轉(zhuǎn)成歐拉角表示，和quaternionfromHeadingPitchRoll方法互逆

*?@param?{Quaternion}?quaternion?齊次坐標(biāo)

*?@param?{HeadingPitchRoll}?result??儲存結(jié)果

*?@return?{HeadingPitchRoll}?返回歐拉角

*/

headingPitchRollFromQuaternion(quaternion,?result)?{

return?Cesium.HeadingPitchRoll.fromQuaternion(quaternion,?result)

}

/**

*?@description:?從4*4矩陣中得到歐拉角

*?@param?{Matrix4}?transform?4*4矩陣

*?@param?{Ellipsoid}?ellipsoid?84橢球體

*?@param?{Transforms.LocalFrameToFixedFrame}?fixedFrameTransform?參考系，默認(rèn)東-北-上參考系

*?@param?{HeadingPitchRoll}?result?儲存結(jié)果

*?@return?{HeadingPitchRoll}

*/

fixedFrameToHeadingPitchRoll(transform,?ellipsoid,?fixedFrameTransform,?result)?{

return?Cesium.Transforms.fixedFrameToHeadingPitchRoll(transform,?ellipsoid,?fixedFrameTransform,?result)

}

/**

*?@description:?將歐拉角轉(zhuǎn)成3*3矩陣

*?@param?{HeadingPitchRoll}?headingPitchRoll

*?@param?{Matrix3}?result?儲存結(jié)果

*?@return?{Matrix3}?返回一個(gè)3*3矩陣

*/

matrixFromHeadingPitchRoll(headingPitchRoll,?result)?{

return?Cesium.Matrix3.fromHeadingPitchRoll(headingPitchRoll,?result)

}

/**

*?@description:?根據(jù)東-北-上方向參考系生成4*4矩陣,已知道地球上的某個(gè)位置，可以根據(jù)這個(gè)方法生成一個(gè)4*4矩陣

*?@param?{Cartesian3}?origin?原點(diǎn)坐標(biāo)

*?@param?{Ellipsoid}?ellipsoid?84橢球體

*?@param?{Matrix4}?result?儲存結(jié)果

*?@return?{Matrix4}?返回4*4矩陣

*/

eastNorthUpToFixedFrame(origin,?ellipsoid,?result)?{

return?Cesium.Transforms.eastNorthUpToFixedFrame(origin,?ellipsoid,?result)

}

/**

*?@description:?根據(jù)原點(diǎn)和歐拉角生成4*4矩陣

*?@param?{Cartesian3}?origin?原點(diǎn)坐標(biāo)

*?@param?{HeadingPitchRoll}?headingPitchRoll?歐拉角

*?@param?{Ellipsoid}?ellipsoid

*?@param?{Transforms.LocalFrameToFixedFrame}?fixedFrameTransform?參考系，默認(rèn)為東-北-上參考系

*?@param?{Matrix4}?result?儲存結(jié)果

*?@return?{Matrix4}?返回4*4矩陣

*/

headingPitchRollToFixedFrame(origin,?headingPitchRoll,?ellipsoid,?fixedFrameTransform,?result)?{

return?Cesium.Transforms.headingPitchRollToFixedFrame(origin,?headingPitchRoll,?ellipsoid,?fixedFrameTransform,?result)

}

}

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