问题
I'm aware that it's possible to get the cameras from saved views in the Navisworks models, but it would be great to get the names as well. When uploading a nwd file to a BIM 360 Document Management project these saved views are shown. Is it possible to do this with the Froge viewer as well? Or is this a Document Manager feaure only? Regards Frode
回答1:
The saved views in Navisworks files are fetchable with viewpoint names inside the response of the GET:urn/manifest. Here is an example from the Revit house sample model, rac_basic_sample_project.rvt exported as rac_basic_sample_project.nwc, see the folder type folder JSON object:
{
"guid": "dc74c06c-0818-46c3-b9cd-6f9666468d12",
"type": "view",
"role": "3d",
"name": "Default",
"status": "success",
"camera": [
-37.01164245605469,
-573.8855590820312,
10.432775497436523,
-37.01164245605469,
-101.42298889160156,
10.432775497436523,
0,
-2.220446049250313e-16,
1,
1,
0.785398006439209,
1,
0
],
"useAsDefault": true,
"hasThumbnail": "true",
"children": [
{
"guid": "59d18972-95cb-4845-a116-55a92e3c7ac3",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6bGt3ZWo3eHBiZ3A2M3g0aGwzMzV5Nm0yNm9ha2dnb2YyMDE3MDUyOHQwMjQ3MzIzODZ6L3JhY19iYXNpY19zYW1wbGVfcHJvamVjdC5ud2M/output/0/0_100.png",
"role": "thumbnail",
"mime": "image/png",
"resolution": [
100,
100
]
},
{
"guid": "14607723-303c-476a-ac39-8f66cac8f4bf",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6bGt3ZWo3eHBiZ3A2M3g0aGwzMzV5Nm0yNm9ha2dnb2YyMDE3MDUyOHQwMjQ3MzIzODZ6L3JhY19iYXNpY19zYW1wbGVfcHJvamVjdC5ud2M/output/0/0_200.png",
"role": "thumbnail",
"mime": "image/png",
"resolution": [
200,
200
]
},
{
"guid": "d7fd06cb-4ef5-48df-9e27-297343bf107a",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6bGt3ZWo3eHBiZ3A2M3g0aGwzMzV5Nm0yNm9ha2dnb2YyMDE3MDUyOHQwMjQ3MzIzODZ6L3JhY19iYXNpY19zYW1wbGVfcHJvamVjdC5ud2M/output/0/0_400.png",
"role": "thumbnail",
"mime": "image/png",
"resolution": [
400,
400
]
}
]
},
{
"guid": "cccca659-8638-4e8d-9554-223f7cc4a23b",
"type": "folder",
"name": "3D View",
"role": "viewable",
"hasThumbnail": "false",
"status": "success",
"progress": "0% complete",
"children": [
{
"guid": "3dc842c3-acf9-4921-8d54-ffebf86500d1",
"type": "view",
"role": "3d",
"name": "Kitchen",
"camera": [
-71.70982360839844,
-77.9845199584961,
4.921259880065918,
10.964564323425293,
-15.158869743347168,
4.921259880065918,
4.996003610813204e-16,
-4.440892098500626e-16,
1,
1,
0.9272952079772949,
1,
0
],
"status": "success"
},
{
"guid": "716c2341-af18-4866-9fb7-57a27ff811d3",
"type": "view",
"role": "3d",
"name": "From Yard",
"camera": [
-98.73897552490234,
-169.06787109375,
0,
-42.515201568603516,
-44.77614212036133,
-1.609189127435573e-14,
0,
1.1102230246251565e-16,
1,
1,
0.9272952079772949,
1,
0
],
"status": "success"
},
{
"guid": "1466f07a-5536-4acd-bb51-ee228fb6a41e",
"type": "view",
"role": "3d",
"name": "Living Room",
"camera": [
-31.575815200805664,
-51.19736862182617,
0.9842519760131836,
38.432044982910156,
-143.84164428710938,
0.9842519760131836,
-5.0237591864288333e-14,
-3.735900477863652e-14,
1,
1,
0.9272952079772949,
1,
0
],
"status": "success"
},
{
"guid": "68ffe8dc-9a9c-45a5-aaf5-29221dd38771",
"type": "view",
"role": "3d",
"name": "Approach",
"camera": [
-41.0597038269043,
38.65303039550781,
32.80839920043945,
-49.91415786743164,
-107.17664337158203,
9.272088050842285,
-0.009639321826398373,
-0.15875616669654846,
0.9872707724571228,
1,
0.9272952079772949,
1,
0
],
"status": "success"
},
{
"guid": "4c8b4f68-7010-47eb-a3e3-3aa699e82674",
"type": "view",
"role": "3d",
"name": "Section Perspective",
"camera": [
8.170970916748047,
29.014333724975586,
5.741469860076904,
-82.0259780883789,
-107.69042205810547,
5.741469860076904,
7.771561172376096e-16,
2.914335439641036e-16,
1,
1,
0.9272952079772949,
1,
0
],
"status": "success"
},
{
"guid": "33f941f3-81d1-41c5-82e5-346731d79f34",
"type": "view",
"role": "3d",
"name": "Solar Analysis",
"camera": [
62.19073486328125,
-142.4400634765625,
161.65139770507812,
-32.913902282714844,
-97.60645294189453,
8.838506698608398,
-0.7451809644699097,
0.3512883186340332,
0.5668349266052246,
1,
45,
273.4084777832031,
1
],
"status": "success"
},
{
"guid": "41b33c50-bcdf-4f57-8101-5f8af6ece8eb",
"type": "view",
"role": "3d",
"name": "{3D}",
"camera": [
-104.73332977294922,
-202.08343505859375,
67.68977355957031,
-103.85852813720703,
-103.78852081298828,
5.5336480140686035,
0.004756217356771231,
0.5344184637069702,
0.8452067375183105,
1,
45,
424.3688049316406,
1
],
"status": "success"
}
]
}
Now we use the Kitchen view to illustrate the workflow:
{
"guid": "3dc842c3-acf9-4921-8d54-ffebf86500d1",
"type": "view",
"role": "3d",
"name": "Kitchen",
"camera": [
-71.70982360839844,
-77.9845199584961,
4.921259880065918,
10.964564323425293,
-15.158869743347168,
4.921259880065918,
4.996003610813204e-16,
-4.440892098500626e-16,
1,
1,
0.9272952079772949,
1,
0
],
"status": "success"
}
First, let's convert it from original model space into the viewer's:
const nwVP = JSON.parse( // the above JSON );
const camera = nwVP.camera;
const nwVPName = nwVP.name;
const placementWithOffset = viewer.model.getData().placementWithOffset;
const pos = new THREE.Vector3( camera[0], camera[1], camera[2] );
const target = new THREE.Vector3( camera[3], camera[4], camera[5] );
const up = new THREE.Vector3( camera[6], camera[7], camera[8] );
const aspect = camera[9];
const fov = camera[10] / Math.PI * 180;
const orthoScale = camera[11];
const isPerspective = !camera[12];
const offsetPos = pos.applyMatrix4( placementWithOffset );
const offsetTarget = target.applyMatrix4( placementWithOffset );
const nwSavedViewpoints = [];
nwSavedViewpoints.push(
{
aspect: aspect,
isPerspective: isPerspective,
fov: fov,
position: offsetPos,
target: offsetTarget,
up: up,
orthoScale: orthoScale,
name: nwVPName
}
);
Afterward, switch the viewpoint by
viewer.impl.setViewFromCamera( nwSavedViewpoints[0] );
Lastly, you may be aware the above converted camera definition will have the almost same value (floating precision issue) as viewer.model.getData().cameras[1]
Hope it helps!
Cheers,
Updates for sectioning mapping
If your saved viewpoint contains a section plane, the response of GET:urn/manifest would have something like this:
{
"guid": "54794b24-d9ef-4a1a-b5aa-8bbf35de2c55",
"type": "view",
"role": "3d",
"name": "Section Test",
"camera": [
-264.2721252441406,
-79.92520141601562,
148.0021209716797,
-42.678688049316406,
-73.8739013671875,
0.7752543091773987,
0.5530436635017395,
0.01510258112102747,
0.8330153822898865,
1.4948216676712036,
0.785398006439209,
1,
0
],
"sectionPlane": [
-0.803684066258349,
-0.5950562340169588,
0,
-92.04215879314862
],
"status": "success"
}
The sectionPlane attribute is the target we want. So, the conversion is
const forge_model_offset = viewer.model.getData().globalOffset;
// assume the param of Navisworks clip plane is available
//I copied from the response of the GET:urn/manifest
const navis_clip_plane = { x: -0.803684066258349, y: -0.5950562340169588, z: 0,d:-92.04215879314862 };
//calculate exact distance in Forge Viewer
const dis_in_forge =( forge_model_offset.x * navis_clip_plane.x +
forge_model_offset.y * navis_clip_plane.y +
forge_model_offset.z * navis_clip_plane.z) + navis_clip_plane.d;
const cutplanes = [
new THREE.Vector4( navis_clip_plane.x, navis_clip_plane.y, navis_clip_plane.z, dis_in_forge )
];
//apply the plane to sectioning
viewer.setCutPlanes( cutplanes )
来源：https://stackoverflow.com/questions/55799023/is-it-possible-to-get-the-name-of-saved-views-of-nwd-models-in-forge