/
Cactus.ts
72 lines (68 loc) · 3.38 KB
/
Cactus.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
/****************************************************************************
** @license
** This demo file is part of yFiles for HTML 2.6.
** Copyright (c) 2000-2024 by yWorks GmbH, Vor dem Kreuzberg 28,
** 72070 Tuebingen, Germany. All rights reserved.
**
** yFiles demo files exhibit yFiles for HTML functionalities. Any redistribution
** of demo files in source code or binary form, with or without
** modification, is not permitted.
**
** Owners of a valid software license for a yFiles for HTML version that this
** demo is shipped with are allowed to use the demo source code as basis
** for their own yFiles for HTML powered applications. Use of such programs is
** governed by the rights and conditions as set out in the yFiles for HTML
** license agreement.
**
** THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY EXPRESS OR IMPLIED
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
** NO EVENT SHALL yWorks BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
** TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
** PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
***************************************************************************/
import type { ILayoutAlgorithm, LayoutData } from 'yfiles'
import {
CactusGroupLayout,
CactusGroupLayoutData,
CactusGroupLayoutGroupSizingPolicy,
IGraph,
NodeLabelingPolicy
} from 'yfiles'
/**
* Demonstrates how to configure the {@link CactusGroupLayout} algorithm.
* @param graph The graph to be laid out
* @returns ({CactusGroupLayout, CactusGroupLayoutData}) the configured cactus algorithm and the corresponding layout data
*/
export function createFeatureLayoutConfiguration(graph: IGraph): {
layout: ILayoutAlgorithm
layoutData: LayoutData
} {
// create the configured cactus group layout
const layout = new CactusGroupLayout({
// use the default group sizing policy which optimizes for compact drawings
groupSizingPolicy: CactusGroupLayoutGroupSizingPolicy.ADAPTIVE,
// enable the integrated node labeling ...
integratedNodeLabeling: true,
// ... and specify that labels at leaf nodes are placed ray-like
nodeLabelingPolicy: NodeLabelingPolicy.RAY_LIKE_LEAVES,
// increase the preferred root wedge to allow children on 200 degrees
preferredRootWedge: 200
})
// enable bundled edges and enable the fitting to bezier control points which in
// conjunction with the BezierEdgeStyle generates smoother curves
layout.edgeBundling.defaultBundleDescriptor.bundled = true
layout.edgeBundling.defaultBundleDescriptor.bezierFitting = true
// create the (optional) layout data and specify that parent and child nodes are allowed to
// overlap a bit more than by default (0.2), so that the drawing becomes more compact,
// expect for some nodes with a specific flag, we do not want to have overlaps at all
const layoutData = new CactusGroupLayoutData()
layoutData.parentOverlapRatios.delegate = (node) =>
node.tag && node.tag.avoidParentOverlap ? 0 : 0.5
return { layout, layoutData }
}