ArcGIS API for JavaScript 4.16 局部场景添加自定义坐标系的场景图层（已修改）

替换这个文件中的._transformNode方法，以及注释掉一个检验坐标系的地方即可
\library\4.16\esri\views的SceneView.js
 方法修改前：

g.prototype._transformNode = function (a, b, d) {

    for (var e = b.geometryData.geometries, f = Array(e.length), g = 0; g < e.length; ++g) f[g] = this._getVertexBufferLayout(e[g], b.geometryDescriptor);

    var e = a.mbs,

        h = this.elevationOffset,

        k = this._controller.crsIndex,

        l = this._controller.crsVertex,

        m = this.view.renderSpatialReference,

        g = V.getLocalOrigin(e, h, k),

        h = V.computeGlobalTransformation(e, h, k, m),

        k = ka.getProjectorName(k, l),

        l = ka.getProjectorName(l, m);

    return c.isNone(k) || c.isNone(l) ? null : this._worker.invoke({

        context: this.layer.uid,

        geometryBuffer: b.geometryBuffer,

        geometryData: b.geometryData,

        geometryDescriptor: b.geometryDescriptor,

        layouts: f,

        localOrigin: g,

        globalTrafo: h,

        mbs: e,

        obb: a.obb,

        elevationOffset: this.elevationOffset,

        needNormals: !this._isIntegratedMesh && this._controller.isMeshPyramid,

        normalReferenceFrame: this.layer.normalReferenceFrame || "none",

        indexToVertexProjector: k,

        vertexToRenderProjector: l

    }, d)

};

有两种修改方式，按需使用，推荐使用第一种方式。但第二种方式也给了扩展的可行性。
 
第一种方式，不支持动态投影，需保证当前场景的坐标系和场景图层的坐标系完全一致。效果很好。

g.prototype._transformNode = function (a, b, d) {

    for (var e = b.geometryData.geometries, f = Array(e.length), g = 0; g < e.length; ++g) f[g] = this._getVertexBufferLayout(e[g], b.geometryDescriptor);

    console.log(this._controller);

    this._controller.crsIndex.wkt = this.view.renderSpatialReference.wkt;

    this._controller.crsVertex.wkt = this.view.renderSpatialReference.wkt;

    console.log(this._controller.crsIndex);

    console.log(this._controller.crsVertex);

    console.log(this.view.renderSpatialReference);

    var e = a.mbs,

        h = this.elevationOffset,

        k = this._controller.crsIndex,

        l = this._controller.crsVertex,

        m = this.view.renderSpatialReference,

        g = V.getLocalOrigin(e, h, k),

        h = V.computeGlobalTransformation(e, h, k, m),

        k = ka.getProjectorName(k, l),

        l = ka.getProjectorName(l, m);

    console.log(k);

    console.log(l);

    return c.isNone(k) || c.isNone(l) ? null : this._worker.invoke({

        context: this.layer.uid,

        geometryBuffer: b.geometryBuffer,

        geometryData: b.geometryData,

        geometryDescriptor: b.geometryDescriptor,

        layouts: f,

        localOrigin: g,

        globalTrafo: h,

        mbs: e,

        obb: a.obb,

        elevationOffset: this.elevationOffset,

        needNormals: !this._isIntegratedMesh && this._controller.isMeshPyramid,

        normalReferenceFrame: this.layer.normalReferenceFrame || "none",

        indexToVertexProjector: k,

        vertexToRenderProjector: l

    }, d)

};

第二种方式，支持动态投影，兼容不同坐标系信息的同坐标叠加。以SceneView坐标系为准。

g.prototype._transformNode = function(a, b, d) {

    for (var e = b.geometryData.geometries,

    f = Array(e.length), g = 0; g < e.length; ++g) f[g] = this._getVertexBufferLayout(e[g], b.geometryDescriptor);

    this._controller.crsIndex.wkt = this.view.renderSpatialReference.wkt;

    this._controller.crsVertex.wkt = this.view.renderSpatialReference.wkt;

    if (this._controller.crsIndex.wkid !== null || this._controller.crsIndex.wkid !== undefined || this._controller.crsIndex.wkid !== '') {

        this._controller.crsIndex.wkid = this.view.renderSpatialReference.wkid;

        this._controller.crsVertex.wkid = this.view.renderSpatialReference.wkid;

        var e = a.mbs,

        h = this.elevationOffset,

        k = this._controller.crsIndex,

        l = this._controller.crsVertex,

        m = this.view.renderSpatialReference,

        g = V.getLocalOrigin(e, h, k),

        h = V.computeGlobalTransformation(e, h, k, m),

        k = ka.getProjectorName(k, l),

        l = ka.getProjectorName(l, m);

    } else {

        var e = a.mbs,

        h = this.elevationOffset,

        k = this._controller.crsIndex,

        l = this._controller.crsVertex,

        m = this.view.renderSpatialReference,

        g = V.getLocalOrigin(e, h, k),

        h = V.computeGlobalTransformation(e, h, k, m),

        k = ka.getProjectorName(k, l),

        l = ka.getProjectorName(l, m);

    }

    return c.isNone(k) || c.isNone(l) ? this._worker.invoke({

        context: this.layer.uid,

        geometryBuffer: b.geometryBuffer,

        geometryData: b.geometryData,

        geometryDescriptor: b.geometryDescriptor,

        layouts: f,

        localOrigin: g,

        globalTrafo: h,

        mbs: e,

        obb: a.obb,

        elevationOffset: this.elevationOffset,

        needNormals: !this._isIntegratedMesh && this._controller.isMeshPyramid,

        normalReferenceFrame: this.layer.normalReferenceFrame || "none",

        indexToVertexProjector: "copy3",

        vertexToRenderProjector: "copy3"

    },

    d) : this._worker.invoke({

        context: this.layer.uid,

        geometryBuffer: b.geometryBuffer,

        geometryData: b.geometryData,

        geometryDescriptor: b.geometryDescriptor,

        layouts: f,

        localOrigin: g,

        globalTrafo: h,

        mbs: e,

        obb: a.obb,

        elevationOffset: this.elevationOffset,

        needNormals: !this._isIntegratedMesh && this._controller.isMeshPyramid,

        normalReferenceFrame: this.layer.normalReferenceFrame || "none",

        indexToVertexProjector: k,

        vertexToRenderProjector: l

    },

    d)

};

 
无论以上采用那一种方式，始终都需要修改坐标系检查部分的代码。坐标系检查代码修改前：

function P(a,b,c){if(!w.canProject(a,b))throw new h("layerview:spatial-reference-incompatible","The spatial reference of this scene layer is incompatible with the spatial reference of the view",{});if("local"===c&&a.isGeographic)throw new h("layerview:local-gcs-not-supported","Geographic coordinate systems are not supported in local scenes",{});}

坐标系检查代码修改后：

function P(a,b,c){/*if(!w.canProject(a,b))throw new h("layerview:spatial-reference-incompatible","The spatial reference of this scene layer is incompatible with the spatial reference of the view",{});*/if("local"===c&&a.isGeographic)throw new h("layerview:local-gcs-not-supported","Geographic coordinate systems are not supported in local scenes",{});}

--------------------------------2020年11月5日更新----------------------------------------------
根据用户反馈，自定义坐标系的场景图层在进行SceneLayerView的filter空间过滤时失败，并且控制台看到警告：
针对此问题，应修改\library\4.16\esri\views的SceneView.js的5463行添加一句

this._controller.crsIndex.wkt = this.view.renderSpatialReference.wkt;

即可解决。
修改后的代码为：

function(a, b, c, d) {

    var e = c[0].spatialReference || this.view.spatialReference;

    console.log(E);

    console.log(b.node.mbs);

    this._controller.crsIndex.wkt = this.view.renderSpatialReference.wkt;

    console.log(this._controller.crsIndex);

    console.log(W);

    console.log(e);

    if (E.mbsToMbs(b.node.mbs, this._controller.crsIndex, W, e)) for (var f = y.acquireMaskFilterContext(d, this.view, e, this._collection, b.objectHandle), g = y.computeMaskNodeMBS(W, f), e = function(c) {

        if (0 === a.length) return {

            value: void 0

        };

        switch (y.testMaskWithGeometry(c, g, d)) {

        case 1:

            return a.length = 0,

            {

                value: void 0

            };

        case 0:

            return "continue"

        }

        F.filterInPlace(a, b.featureIds,

        function(a) {

            return y.filterWithMask(c, a, f)

        })

    },

    h = 0; h < c.length; h++) {

        var k = e(c[h]);

        if ("object" === typeof k) return k.value

    } else Q.warnOnce("SceneLayerView.filter.geometry is using unsupported SpatialReference, skipping geometry filter")

};

这样，自定义空间参考的场景图层就可以进行空间过滤了。


 

• SceneView.zip