StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
249 lines
6.1 KiB
249 lines
6.1 KiB
4 years ago
|
'use strict'
|
||
|
|
||
|
var orient = require('robust-orientation')
|
||
|
var vec2 = require('vec2')
|
||
|
var segment2 = require('segment2')
|
||
|
var mouseChange = require('mouse-change')
|
||
|
var segCrosses = require('robust-segment-intersect')
|
||
|
var fit = require('canvas-fit')
|
||
|
var cleanupPSLG = require('../clean-pslg')
|
||
|
|
||
|
//Create canvas and context
|
||
|
var canvas = document.createElement('canvas')
|
||
|
var context = canvas.getContext('2d')
|
||
|
document.body.appendChild(canvas)
|
||
|
window.addEventListener('resize', fit(canvas), false)
|
||
|
|
||
|
var optionDiv = document.createElement('div')
|
||
|
optionDiv.style.position = 'absolute'
|
||
|
optionDiv.style.left = '5px'
|
||
|
optionDiv.style.top = '5px'
|
||
|
optionDiv.style['z-index'] = '10'
|
||
|
document.body.appendChild(optionDiv)
|
||
|
|
||
|
var points = []
|
||
|
var edges = []
|
||
|
var cleanPoints = []
|
||
|
var cleanEdges = []
|
||
|
|
||
|
function dataChanged() {
|
||
|
cleanPoints = points.map(function(p) { return [p[0], p[1]] })
|
||
|
cleanEdges = edges.map(function(e) { return [e[0], e[1]] })
|
||
|
cleanupPSLG(cleanPoints, cleanEdges)
|
||
|
}
|
||
|
|
||
|
for(var i=0; i<10; ++i) {
|
||
|
var x = Math.random() * 0.8 - 0.4
|
||
|
var y = Math.random() * 0.8 - 0.4
|
||
|
points.push([0.5+x,0.5+y], [0.5-x,0.5-y])
|
||
|
edges.push([2*i, 2*i+1])
|
||
|
}
|
||
|
|
||
|
dataChanged()
|
||
|
|
||
|
var resetButton = document.createElement('input')
|
||
|
resetButton.type = 'button'
|
||
|
resetButton.value = 'reset'
|
||
|
resetButton.addEventListener('click', function() {
|
||
|
points.length = edges.length = 0
|
||
|
dataChanged()
|
||
|
})
|
||
|
var resetP = document.createElement('p')
|
||
|
resetP.appendChild(resetButton)
|
||
|
optionDiv.appendChild(resetP)
|
||
|
|
||
|
var description = document.createElement('p')
|
||
|
description.innerHTML = 'click to add/remove points<br>drag to add edges<br><a href="https://github.com/mikolalysenko/clean-pslg">Project page</a>'
|
||
|
optionDiv.appendChild(description)
|
||
|
|
||
|
function edgeDistance(a, b, c) {
|
||
|
var p = vec2(c[0], c[1])
|
||
|
return segment2(vec2(a[0], a[1]), vec2(b[0], b[1])).closestPointTo(p).distance(p)
|
||
|
}
|
||
|
|
||
|
function isValidEdge(a, b) {
|
||
|
return true
|
||
|
}
|
||
|
|
||
|
var lastButtons = 0,
|
||
|
highlightPoint = -1,
|
||
|
startPoint = -1,
|
||
|
highlightEdge = -1,
|
||
|
activeEdge = null
|
||
|
mouseChange(canvas, function(buttons, x, y) {
|
||
|
var s = Math.min(canvas.width, canvas.height)
|
||
|
var lx = (x - canvas.width/2) / s + 0.5
|
||
|
var ly = (y - canvas.height/2) / s + 0.5
|
||
|
var closestDist = 0.0125
|
||
|
highlightPoint = -1
|
||
|
highlightEdge = -1
|
||
|
for(var i=0; i<points.length; ++i) {
|
||
|
var p = points[i]
|
||
|
var d2 = Math.sqrt(Math.pow(lx - p[0], 2) + Math.pow(ly - p[1], 2))
|
||
|
if(d2 < closestDist) {
|
||
|
highlightPoint = i
|
||
|
closestDist = d2
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if(highlightPoint < 0) {
|
||
|
for(var i=0; i<edges.length; ++i) {
|
||
|
var e = edges[i]
|
||
|
if(e[0] < 0 || e[1] < 0) {
|
||
|
continue
|
||
|
}
|
||
|
var d2 = edgeDistance(points[e[0]], points[e[1]], [lx, ly])
|
||
|
if(d2 < closestDist) {
|
||
|
highlightEdge = i
|
||
|
closestDist = d2
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if(!lastButtons && !!buttons) {
|
||
|
if(highlightEdge >= 0) {
|
||
|
edges.splice(highlightEdge, 1)
|
||
|
dataChanged()
|
||
|
highlightEdge = -1
|
||
|
} else if(highlightPoint < 0) {
|
||
|
points.push([lx, ly])
|
||
|
dataChanged()
|
||
|
} else {
|
||
|
startPoint = highlightPoint
|
||
|
activeEdge = [ points[highlightPoint], [lx, ly] ]
|
||
|
}
|
||
|
} else if(!!lastButtons && !buttons) {
|
||
|
if(startPoint >= 0) {
|
||
|
if(highlightPoint === startPoint) {
|
||
|
points.splice(highlightPoint, 1)
|
||
|
var nedges = []
|
||
|
discard_edge:
|
||
|
for(var i=0; i<edges.length; ++i) {
|
||
|
var e = edges[i]
|
||
|
for(var j=0; j<2; ++j) {
|
||
|
if(e[j] > highlightPoint) {
|
||
|
e[j] -= 1
|
||
|
} else if(e[j] === highlightPoint) {
|
||
|
continue discard_edge
|
||
|
}
|
||
|
}
|
||
|
nedges.push(e)
|
||
|
}
|
||
|
edges = nedges
|
||
|
highlightPoint = -1
|
||
|
dataChanged()
|
||
|
} else if(highlightPoint >= 0) {
|
||
|
if(isValidEdge(points[startPoint], points[highlightPoint])) {
|
||
|
edges.push([startPoint, highlightPoint])
|
||
|
dataChanged()
|
||
|
}
|
||
|
}
|
||
|
startPoint = -1
|
||
|
activeEdge = null
|
||
|
}
|
||
|
} else if(!!buttons) {
|
||
|
if(activeEdge) {
|
||
|
activeEdge[1] = [lx, ly]
|
||
|
}
|
||
|
}
|
||
|
lastButtons = buttons
|
||
|
})
|
||
|
|
||
|
function line(a, b) {
|
||
|
var x0 = a[0]-0.5
|
||
|
var y0 = a[1]-0.5
|
||
|
var x1 = b[0]-0.5
|
||
|
var y1 = b[1]-0.5
|
||
|
var w = canvas.width
|
||
|
var h = canvas.height
|
||
|
var s = Math.min(w, h)
|
||
|
context.beginPath()
|
||
|
context.moveTo(s*x0 + w/2, s*y0 + h/2)
|
||
|
context.lineTo(s*x1 + w/2, s*y1 + h/2)
|
||
|
context.stroke()
|
||
|
}
|
||
|
|
||
|
function circle(x, y, r) {
|
||
|
var w = canvas.width
|
||
|
var h = canvas.height
|
||
|
var s = Math.min(w, h)
|
||
|
context.beginPath()
|
||
|
context.moveTo(s*x, s*y)
|
||
|
context.arc(s*(x-0.5) + w/2, s*(y-0.5) + h/2, r, 0.0, 2.0*Math.PI)
|
||
|
context.fill()
|
||
|
}
|
||
|
|
||
|
var EDGE_PALETTE = [
|
||
|
'rgba(255,0,0,0.25)',
|
||
|
'rgba(0,255,0,0.25)',
|
||
|
'rgba(0,0,255,0.25)',
|
||
|
'rgba(255,255,0,0.25)',
|
||
|
'rgba(255,0,255,0.25)',
|
||
|
'rgba(0,255,255,0.25)'
|
||
|
]
|
||
|
|
||
|
function draw() {
|
||
|
requestAnimationFrame(draw)
|
||
|
|
||
|
var w = canvas.width
|
||
|
var h = canvas.height
|
||
|
context.fillStyle = '#fff'
|
||
|
context.fillRect(0, 0, w, h)
|
||
|
|
||
|
for(var i=0; i<cleanPoints.length; ++i) {
|
||
|
var p = cleanPoints[i]
|
||
|
context.fillStyle = 'rgba(0, 0, 255, 0.25)'
|
||
|
circle(p[0], p[1], 5)
|
||
|
}
|
||
|
|
||
|
for(var i=0; i<cleanEdges.length; ++i) {
|
||
|
var e = cleanEdges[i]
|
||
|
var a = cleanPoints[e[0]]
|
||
|
var b = cleanPoints[e[1]]
|
||
|
context.strokeStyle = EDGE_PALETTE[i%EDGE_PALETTE.length]
|
||
|
context.lineWidth = 4
|
||
|
line(a, b)
|
||
|
}
|
||
|
|
||
|
for(var i=0; i<edges.length; ++i) {
|
||
|
var e = edges[i]
|
||
|
var a = points[e[0]]
|
||
|
var b = points[e[1]]
|
||
|
context.strokeStyle = '#000'
|
||
|
context.lineWidth = 1
|
||
|
line(a, b)
|
||
|
}
|
||
|
|
||
|
if(window.NEEDS_FLIP) {
|
||
|
for(var i=0; i<window.NEEDS_FLIP.length; i+=2) {
|
||
|
var a = window.NEEDS_FLIP[i]
|
||
|
var b = window.NEEDS_FLIP[i+1]
|
||
|
context.strokeStyle = '#00f'
|
||
|
line(points[a], points[b])
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
if(!!activeEdge) {
|
||
|
context.strokeStyle = '#f00'
|
||
|
line(activeEdge[0], activeEdge[1])
|
||
|
} else if(highlightEdge >= 0) {
|
||
|
var e = edges[highlightEdge]
|
||
|
context.strokeStyle = '#f00'
|
||
|
line(points[e[0]], points[e[1]])
|
||
|
}
|
||
|
|
||
|
|
||
|
for(var i=0; i<points.length; ++i) {
|
||
|
var p = points[i]
|
||
|
if(i === highlightPoint || i === startPoint) {
|
||
|
context.fillStyle = '#f00'
|
||
|
} else {
|
||
|
context.fillStyle = '#000'
|
||
|
}
|
||
|
circle(p[0], p[1], 2)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
draw()
|