From the documentation it looks like you should be able to call setThemingColor with any dbId, but it seems to only work if the id that you pass is a leafnode? Is this correct?
Also is there any way to bulk call this method, or is it only one single leaf node at a time? I would like to pass an array of dbId's into the method.
Yes, it's only working with the leaf nodes in my experience. However, leaf nodes of a parent node can be retrieved in this way:
getLeafNodes( model, dbIds ) {
return new Promise( ( resolve, reject ) => {
try {
const instanceTree = model.getData().instanceTree
dbIds = dbIds || instanceTree.getRootId();
const dbIdArray = Array.isArray( dbIds ) ? dbIds : [dbIds]
let leafIds = [];
const getLeafNodesRec = ( id ) => {
let childCount = 0;
instanceTree.enumNodeChildren( id, ( childId ) => {
getLeafNodesRec( childId );
++childCount;
})
if( childCount == 0 ) {
leafIds.push( id );
}
}
for( let i = 0; i < dbIdArray.length; ++i ) {
getLeafNodesRec( dbIdArray[i] );
}
return resolve( leafIds );
} catch (ex) {
return reject(ex)
}
})
}
getLeafNodes( viewer.model, [1] )
.then( ( leafNodes ) => {
// All leaf dbIds under the dbId 1.
console.log( leafNodes );
})
.catch( ( error ) => console.warn( error ) );
After retrieving all leaf dbIds, you can simply write a for loop to call setThemingColor
for every dbIds like this way:
const color = new THREE.Vector4( 255/255, 0, 0, 1 );
getLeafNodes( viewer.model, [1] )
.then( ( leafNodes ) => {
// Call setThemingColor for every leaf node.
for( let i = 0; i < leafNodes.length; i++ ) {
viewer.setThemingColor( leafNodes[i], color );
}
})
.catch( ( error ) => console.warn( error ) );
Hope this help.
Ref of the function getLeafNodes
: https://forge.autodesk.com/blog/hidding-completely-viewer-nodes-no-ghosting