@itwin/core-common
Version:
iTwin.js components common to frontend and backend
92 lines • 2.77 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
/** @packageDocumentation
* @module Rendering
*/
/** @internal */
export class MeshPolyline {
indices;
constructor(indices = []) {
this.indices = indices.slice();
}
addIndex(index) {
const { indices } = this;
if (indices.length === 0 || indices[indices.length - 1] !== index)
indices.push(index);
}
clear() { this.indices.length = 0; }
}
/** @internal */
export class MeshEdge {
indices = [0, 0];
constructor(index0, index1) {
if (undefined === index0 || undefined === index1)
return;
if (index0 < index1) {
this.indices[0] = index0;
this.indices[1] = index1;
}
else {
this.indices[0] = index1;
this.indices[1] = index0;
}
}
compareTo(other) {
let diff = this.indices[0] - other.indices[0];
if (0 === diff)
diff = this.indices[1] - other.indices[1];
return diff;
}
}
/** @internal */
export class MeshEdges {
visible = [];
silhouette = [];
polylines = [];
silhouetteNormals = [];
constructor() { }
}
/** @internal */
export class EdgeArgs {
edges;
init(meshEdges) {
this.clear();
if (undefined !== meshEdges && 0 < meshEdges.visible.length)
this.edges = meshEdges.visible;
return this.isValid;
}
clear() { this.edges = undefined; }
get isValid() { return 0 < this.numEdges; }
get numEdges() { return undefined !== this.edges ? this.edges.length : 0; }
}
/** @internal */
export class SilhouetteEdgeArgs extends EdgeArgs {
normals;
init(meshEdges) {
this.clear();
if (undefined !== meshEdges && 0 < meshEdges.silhouette.length) {
this.edges = meshEdges.silhouette;
this.normals = meshEdges.silhouetteNormals;
}
return this.isValid;
}
clear() {
this.normals = undefined;
super.clear();
}
}
/** @internal */
export class PolylineEdgeArgs {
lines;
constructor(lines) { this.init(lines); }
init(lines) {
this.lines = undefined !== lines && 0 < lines.length ? lines : undefined;
return this.isValid;
}
get numLines() { return undefined !== this.lines ? this.lines.length : 0; }
get isValid() { return this.numLines > 0; }
clear() { this.lines = undefined; }
}
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