751 lines
28 KiB
JavaScript
751 lines
28 KiB
JavaScript
/**
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* Logarithm Graph Creator - Create graphs with logarithm scales.
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* Copyright (C) 2020 Ad5001
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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.pragma library
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.import "utils.js" as Utils
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.import "mathlib.js" as MathLib
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function getNewName(allowedLetters) {
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var newid = 0
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var ret
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do {
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var letter = allowedLetters[newid % allowedLetters.length]
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var num = Math.floor((newid - (newid % allowedLetters.length)) / allowedLetters.length)
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ret = letter + (num > 0 ? Utils.textsub(num-1) : '')
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newid += 1
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} while(getObjectByName(ret) != null)
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return ret
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}
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class DrawableObject {
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// Class to extend for every type of object that
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// can be drawn on the canvas.
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static type(){return 'Unknown'}
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// Label used for the list on the ObjectsList sidebar.
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static typeMultiple(){return 'Unknown'}
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// Whether this object can be created by the user
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// or are instanciated by other objects.
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static createable() {return true}
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// Properties are set with key as property name and
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// value as it's type name (e.g 'Expression', 'string',
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// 'Point'...) or an array with possibilities for enums.
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// Used for property modifier in the sidebar.
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static properties() {return {}}
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constructor(name, visible = true, color = null, labelContent = 'name + value') {
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if(color == null) color = Utils.getRandomColor()
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this.type = 'Unknown'
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this.name = name
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this.visible = visible
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this.color = color
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this.labelContent = labelContent // "null", "name", "name + value"
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this.requiredBy = []
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}
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export() {
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// Should return what will be input as arguments when a file is loaded (serializable form)
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return [this.name, this.visible, this.color.toString(), this.labelContent]
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}
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getReadableString() {
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return `${this.name} = Unknown`
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}
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getLabel() {
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switch(this.labelContent) {
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case 'name':
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return this.name
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case 'name + value':
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return this.getReadableString()
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case 'null':
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return ''
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}
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}
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update() {
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for(var i = 0; i < this.requiredBy.length; i++) {
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this.requiredBy[i].update()
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}
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}
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delete() {
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for(var i = 0; i < this.requiredBy.length; i++) {
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var toRemove = this.requiredBy[i]
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toRemove.delete()
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currentObjects[toRemove.type] = currentObjects[toRemove.type].filter(obj => obj.name != toRemove.name)
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}
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}
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draw(canvas, ctx) {}
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}
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class ExecutableObject extends DrawableObject {
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// Class to be extended for every class upon which we
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// calculate an y for a x with the execute function.
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// If a value cannot be found during execute, it should
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// return null. However, theses values should
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// return false when passed to canExecute.
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execute(x = 1) {return 0}
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canExecute(x = 1) {return true}
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// Simplify returns the simplified string of the expression.
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simplify(x = 1) {return '0'}
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}
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class Point extends DrawableObject {
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static type(){return 'Point'}
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static typeMultiple(){return 'Points'}
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static properties() {return {
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'x': 'Expression',
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'y': 'Expression',
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'labelPosition': ['top', 'bottom', 'left', 'right'],
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'pointStyle': ['●', '✕', '＋'],
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}}
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constructor(name = null, visible = true, color = null, labelContent = 'name + value',
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x = 1, y = 0, labelPosition = 'top', pointStyle = '●') {
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if(name == null) name = getNewName('ABCDEFJKLMNOPQRSTUVW')
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super(name, visible, color, labelContent)
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this.type = 'Point'
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if(typeof x == 'number' || typeof x == 'string') x = new MathLib.Expression(x.toString())
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this.x = x
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if(typeof y == 'number' || typeof y == 'string') y = new MathLib.Expression(y.toString())
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this.y = y
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this.labelPosition = labelPosition
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this.pointStyle = pointStyle
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}
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getReadableString() {
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return `${this.name} = (${this.x}, ${this.y})`
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}
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export() {
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return [this.name, this.visible, this.color.toString(), this.labelContent, this.x.toEditableString(), this.y.toEditableString(), this.labelPosition, this.pointStyle]
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}
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draw(canvas, ctx) {
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var [canvasX, canvasY] = [canvas.x2px(this.x.execute()), canvas.y2px(this.y.execute())]
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var pointSize = 8
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switch(this.pointStyle) {
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case '●':
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ctx.beginPath();
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ctx.ellipse(canvasX-pointSize/2, canvasY-pointSize/2, pointSize, pointSize)
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ctx.fill();
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break;
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case '✕':
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canvas.drawLine(ctx, canvasX-pointSize/2, canvasY-pointSize/2, canvasX+pointSize/2, canvasY+pointSize/2)
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canvas.drawLine(ctx, canvasX-pointSize/2, canvasY+pointSize/2, canvasX+pointSize/2, canvasY-pointSize/2)
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break;
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case '＋':
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canvas.drawLine(ctx, canvasX, canvasY-pointSize/2, canvasX, canvasY+pointSize/2)
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canvas.drawLine(ctx, canvasX-pointSize/2, canvasY, canvasX+pointSize/2, canvasY)
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break;
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}
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var text = this.getLabel()
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ctx.font = "14px sans-serif"
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var textSize = ctx.measureText(text).width
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switch(this.labelPosition) {
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case 'top':
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canvas.drawVisibleText(ctx, text, canvasX-textSize/2, canvasY-16)
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break;
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case 'bottom':
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canvas.drawVisibleText(ctx, text, canvasX-textSize/2, canvasY+16)
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break;
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case 'left':
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canvas.drawVisibleText(ctx, text, canvasX-textSize-10, canvasY+4)
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break;
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case 'right':
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canvas.drawVisibleText(ctx, text, canvasX+10, canvasY+4)
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break;
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}
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}
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}
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class Function extends ExecutableObject {
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static type(){return 'Function'}
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static typeMultiple(){return 'Functions'}
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static properties() {return {
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'expression': 'Expression',
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'inDomain': 'Domain',
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'outDomain': 'Domain',
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'labelPosition': ['above', 'below'],
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'displayMode': ['application', 'function'],
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'labelX': 'number'
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}}
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constructor(name = null, visible = true, color = null, labelContent = 'name + value',
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expression = 'x', inDomain = 'RPE', outDomain = 'R',
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displayMode = 'application', labelPosition = 'above', labelX = 1) {
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if(name == null) name = getNewName('fghjqlmnopqrstuvwabcde')
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super(name, visible, color, labelContent)
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this.type = 'Function'
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if(typeof expression == 'number' || typeof expression == 'string') expression = new MathLib.Expression(expression.toString())
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this.expression = expression
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if(typeof inDomain == 'string') inDomain = MathLib.parseDomain(inDomain)
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this.inDomain = inDomain
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if(typeof outDomain == 'string') outDomain = MathLib.parseDomain(outDomain)
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this.outDomain = outDomain
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this.displayMode = displayMode
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this.labelPosition = labelPosition
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this.labelX = labelX
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}
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getReadableString() {
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if(this.displayMode == 'application') {
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return `${this.name}: ${this.inDomain} ⸺> ${this.outDomain}\n ${' '.repeat(this.name.length)}x ⸺> ${this.expression.toString()}`
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} else {
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return `${this.name}(x) = ${this.expression.toString()}`
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}
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}
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export() {
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return [this.name, this.visible, this.color.toString(), this.labelContent,
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this.expression.toEditableString(), this.inDomain.toString(), this.outDomain.toString(),
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this.displayMode, this.labelPosition, this.labelX]
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}
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execute(x = 1) {
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if(this.inDomain.includes(x))
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return this.expression.execute(x)
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return null
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}
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canExecute(x = 1) {
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return this.inDomain.includes(x)
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}
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simplify(x = 1) {
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if(this.inDomain.includes(x))
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return this.expression.simplify(x)
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return ''
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}
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draw(canvas, ctx) {
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Function.drawFunction(canvas, ctx, this.expression, this.inDomain, this.outDomain)
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// Label
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var text = this.getLabel()
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ctx.font = "14px sans-serif"
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var textSize = canvas.measureText(ctx, text)
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var posX = canvas.x2px(this.labelX)
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var posY = canvas.y2px(this.expression.execute(this.labelX))
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switch(this.labelPosition) {
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case 'above':
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canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY-textSize.height)
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break;
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case 'below':
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canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+textSize.height)
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break;
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}
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}
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static drawFunction(canvas, ctx, expr, inDomain, outDomain) {
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// Reusable in other objects.
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// Drawing small traits every 2px
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var pxprecision = 2
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var previousX = canvas.px2x(0)
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var previousY = expr.execute(previousX)
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for(var px = pxprecision; px < canvas.canvasSize.width; px += pxprecision) {
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var currentX = canvas.px2x(px)
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var currentY = expr.execute(currentX)
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if((inDomain.includes(currentX) || inDomain.includes(previousX)) &&
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(outDomain.includes(currentY) || outDomain.includes(previousY)) &&
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Math.abs(previousY-currentY)<100) { // 100 per 2px is a lot (probably inf to inf issue)
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canvas.drawLine(ctx, canvas.x2px(previousX), canvas.y2px(previousY), canvas.x2px(currentX), canvas.y2px(currentY))
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}
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previousX = currentX
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previousY = currentY
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}
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}
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}
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class GainBode extends ExecutableObject {
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static type(){return 'Gain Bode'}
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static typeMultiple(){return 'Gains Bode'}
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static properties() {return {
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'ω_0': 'Point',
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'pass': ['high', 'low'],
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'gain': 'Expression',
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'labelPosition': ['above', 'below'],
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'labelX': 'number'
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}}
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constructor(name = null, visible = true, color = null, labelContent = 'name + value',
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ω_0 = '', pass = 'high', gain = '20', labelPosition = 'above', labelX = 1) {
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if(name == null) name = getNewName('G')
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if(name == 'G') name = 'G₀' // G is reserved for sum of BODE magnitudes (Somme gains Bode).
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super(name, visible, color, labelContent)
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this.type = 'Gain Bode'
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if(typeof ω_0 == "string") {
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// Point name or create one
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ω_0 = getObjectByName(ω_0, 'Point')
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if(ω_0 == null) {
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// Create new point
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ω_0 = createNewRegisteredObject('Point')
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ω_0.name = getNewName('ω')
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ω_0.color = this.color
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labelPosition = 'below'
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}
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ω_0.requiredBy.push(this)
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}
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this.ω_0 = ω_0
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this.pass = pass
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if(typeof gain == 'number' || typeof gain == 'string') gain = new MathLib.Expression(gain.toString())
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this.gain = gain
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this.labelPosition = labelPosition
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this.labelX = labelX
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}
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getReadableString() {
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return `${this.name}: ${this.pass}-pass; ω₀ = ${this.ω_0.x}\n ${' '.repeat(this.name.length)}${this.gain.toString(true)} dB/dec`
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}
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export() {
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return [this.name, this.visible, this.color.toString(), this.labelContent,
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this.ω_0.name, this.pass.toString(), this.gain.toEditableString(), this.labelPosition, this.labelX]
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}
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execute(x=1) {
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if((this.pass == 'high' && x < this.ω_0.x) || (this.pass == 'low' && x > this.ω_0.x)) {
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var dbfn = new MathLib.Expression(`${this.gain.execute()}*(ln(x)-ln(${this.ω_0.x}))/ln(10)+${this.ω_0.y}`)
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return dbfn.execute(x)
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} else {
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return this.ω_0.y.execute()
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}
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}
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simplify(x = 1) {
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if((this.pass == 'high' && x < this.ω_0.x) || (this.pass == 'low' && x > this.ω_0.x)) {
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var dbfn = new MathLib.Expression(`${this.gain.execute()}*(ln(x)-ln(${this.ω_0.x}))/ln(10)+${this.ω_0.y}`)
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return dbfn.simplify(x)
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} else {
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return this.ω_0.y.toString()
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}
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}
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canExecute(x = 1) {
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return true
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}
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draw(canvas, ctx) {
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var base = [canvas.x2px(this.ω_0.x), canvas.y2px(this.ω_0.y)]
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var dbfn = new MathLib.Expression(`${this.gain.execute()}*(ln(x)-ln(${this.ω_0.x}))/ln(10)+${this.ω_0.y}`)
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var inDrawDom = new MathLib.EmptySet()
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if(this.pass == 'high') {
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// High pass, linear line from begining, then constant to the end.
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canvas.drawLine(ctx, base[0], base[1], canvas.canvasSize.width, base[1])
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inDrawDom = MathLib.parseDomain(`]-inf;${this.ω_0.x}[`)
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} else {
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// Low pass, constant from the beginning, linear line to the end.
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canvas.drawLine(ctx, base[0], base[1], 0, base[1])
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inDrawDom = MathLib.parseDomain(`]${this.ω_0.x};+inf[`)
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}
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Function.drawFunction(canvas, ctx, dbfn, inDrawDom, MathLib.Domain.R)
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// Label
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var text = this.getLabel()
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ctx.font = "14px sans-serif"
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var textSize = canvas.measureText(ctx, text)
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var posX = canvas.x2px(this.labelX)
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var posY = canvas.y2px(this.execute(this.labelX))
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switch(this.labelPosition) {
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case 'above':
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canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY-textSize.height)
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break;
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case 'below':
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canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+textSize.height)
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break;
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}
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}
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update() {
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if(currentObjects['Somme gains Bode'] != undefined) {
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currentObjects['Somme gains Bode'][0].recalculateCache()
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} else {
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createNewRegisteredObject('Somme gains Bode')
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}
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}
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}
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class SommeGainsBode extends DrawableObject {
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static type(){return 'Somme gains Bode'}
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static typeMultiple(){return 'Somme gains Bode'}
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static createable() {return false}
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static properties() {return {
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'labelPosition': ['above', 'below'],
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'labelX': 'number'
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}}
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constructor(name = null, visible = true, color = null, labelContent = 'name + value',
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labelPosition = 'above', labelX = 1) {
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if(name == null) name = 'G'
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super(name, visible, color, labelContent)
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this.labelPosition = labelPosition
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this.labelX = labelX
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this.recalculateCache()
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}
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export() {
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return [this.name, this.visible, this.color.toString(), this.labelContent, this.labelPosition, this.labelX]
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}
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getReadableString() {
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return `${this.name} = ${getObjectsName('Gain Bode').join(' + ')}`
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}
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execute(x = 0) {
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for(var i=0; i<this.cachedParts.length; i++) {
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var [dbfn, inDrawDom] = this.cachedParts[i]
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if(inDrawDom.includes(x)) {
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return dbfn.execute(x)
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}
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}
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return null
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}
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canExecute(x = 1) {
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return true // Should always be true
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}
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simplify(x = 1) {
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for(var i=0; i<this.cachedParts.length; i++) {
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var [dbfn, inDrawDom] = this.cachedParts[i]
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if(inDrawDom.includes(x)) {
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return dbfn.simplify(x)
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}
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}
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return ''
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}
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recalculateCache() {
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this.cachedParts = []
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// Calculating this is fairly resource expansive so it's cached.
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if(currentObjects['Gain Bode'] != undefined) {
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console.log('Recalculating cache gain')
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// Minimum to draw (can be expended if needed, just not inifite or it'll cause issues.
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var drawMin = 0.01
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var baseY = 0
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var ω0xGains = {100000: 0} // To draw the last part
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var ω0xPass = {100000: 'high'} // To draw the last part
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currentObjects['Gain Bode'].forEach(function(gainObj) { // Sorting by their ω_0 position.
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if(ω0xGains[gainObj.ω_0.x.execute()] == undefined) {
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ω0xGains[gainObj.ω_0.x.execute()] = gainObj.gain.execute()
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ω0xPass[gainObj.ω_0.x.execute()] = gainObj.pass == 'high'
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} else {
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ω0xGains[gainObj.ω_0.x.execute()+0.001] = gainObj.gain.execute()
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ω0xPass[gainObj.ω_0.x.execute()+0.001] = gainObj.pass == 'high'
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}
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baseY += gainObj.execute(drawMin)
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})
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// Sorting the ω_0x
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var ω0xList = Object.keys(ω0xGains).map(x => parseFloat(x)) // THEY WERE CONVERTED TO STRINGS...
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ω0xList.sort((a,b) => a - b)
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// Adding the total gains.
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var gainsBeforeP = []
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var gainsAfterP = []
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var gainTotal = 0
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for(var i=0; i < ω0xList.length; i++){
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if(ω0xPass[ω0xList[i]]) { // High-pass
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gainsBeforeP.push(ω0xGains[ω0xList[i]])
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gainsAfterP.push(0)
|
||
gainTotal += ω0xGains[ω0xList[i]] // Gain at first
|
||
} else {
|
||
gainsBeforeP.push(0)
|
||
gainsAfterP.push(ω0xGains[ω0xList[i]])
|
||
}
|
||
}
|
||
console.log(gainsBeforeP, gainsAfterP)
|
||
// Calculating parts
|
||
var previousPallier = drawMin
|
||
for(var pallier = 0; pallier < ω0xList.length; pallier++) {
|
||
var dbfn = new MathLib.Expression(`${gainTotal}*(ln(x)-ln(${previousPallier}))/ln(10)+${baseY}`)
|
||
var inDrawDom = MathLib.parseDomain(`]${previousPallier};${ω0xList[pallier]}]`)
|
||
this.cachedParts.push([dbfn, inDrawDom])
|
||
previousPallier = ω0xList[pallier]
|
||
baseY = dbfn.execute(ω0xList[pallier])
|
||
gainTotal += gainsAfterP[pallier] - gainsBeforeP[pallier]
|
||
}
|
||
}
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
if(this.cachedParts.length > 0) {
|
||
for(var i=0; i<this.cachedParts.length; i++) {
|
||
var [dbfn, inDrawDom] = this.cachedParts[i]
|
||
Function.drawFunction(canvas, ctx, dbfn, inDrawDom, MathLib.Domain.R)
|
||
if(inDrawDom.includes(this.labelX)) {
|
||
// Label
|
||
var text = this.getLabel()
|
||
ctx.font = "14px sans-serif"
|
||
var textSize = canvas.measureText(ctx, text)
|
||
var posX = canvas.x2px(this.labelX)
|
||
var posY = canvas.y2px(dbfn.execute(this.labelX))
|
||
switch(this.labelPosition) {
|
||
case 'above':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY-textSize.height)
|
||
break;
|
||
case 'below':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+textSize.height)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
class PhaseBode extends ExecutableObject {
|
||
static type(){return 'Phase Bode'}
|
||
static typeMultiple(){return 'Phases Bode'}
|
||
static properties() {return {
|
||
'ω_0': 'Point',
|
||
'phase': 'Expression',
|
||
'unit': ['°', 'deg', 'rad'],
|
||
'labelPosition': ['above', 'below'],
|
||
'labelX': 'number'
|
||
}}
|
||
|
||
constructor(name = null, visible = true, color = null, labelContent = 'name + value',
|
||
ω_0 = '', phase = 90, unit = '°', labelPosition = 'above', labelX = 1) {
|
||
if(name == null) name = getNewName('φ')
|
||
if(name == 'φ') name = 'φ₀' // φ is reserved for sum of BODE phases (Somme phases Bode).
|
||
super(name, visible, color, labelContent)
|
||
this.type = 'Phase Bode'
|
||
if(typeof ω_0 == "string") {
|
||
// Point name or create one
|
||
ω_0 = getObjectByName(ω_0, 'Point')
|
||
if(ω_0 == null) {
|
||
// Create new point
|
||
ω_0 = createNewRegisteredObject('Point')
|
||
ω_0.name = getNewName('ω')
|
||
ω_0.color = this.color
|
||
labelPosition = 'below'
|
||
}
|
||
ω_0.requiredBy.push(this)
|
||
}
|
||
this.ω_0 = ω_0
|
||
if(typeof phase == 'number' || typeof phase == 'string') phase = new MathLib.Expression(phase.toString())
|
||
this.phase = phase
|
||
this.unit = unit
|
||
this.labelPosition = labelPosition
|
||
this.labelX = labelX
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent,
|
||
this.ω_0.name, this.phase.toEditableString(), this.unit, this.labelPosition, this.labelX]
|
||
}
|
||
|
||
getReadableString() {
|
||
return `${this.name}: ${this.phase.toString(true)}${this.unit} at ω₀ = ${this.ω_0.x}\n`
|
||
}
|
||
}
|
||
|
||
class CursorX extends DrawableObject {
|
||
static type(){return 'X Cursor'}
|
||
static typeMultiple(){return 'X Cursors'}
|
||
static properties() {
|
||
var elementTypes = Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
|
||
var elementNames = ['']
|
||
elementTypes.forEach(function(elemType){
|
||
elementNames = elementNames.concat(currentObjects[elemType].map(obj => obj.name))
|
||
})
|
||
return {
|
||
'x': 'Expression',
|
||
'targetElement': elementNames,
|
||
'labelPosition': ['left', 'right'],
|
||
'approximate': 'Boolean',
|
||
'rounding': 'number',
|
||
'displayStyle': [
|
||
'— — — — — — —',
|
||
'⸺⸺⸺⸺⸺⸺',
|
||
'• • • • • • • • • •'
|
||
],
|
||
'targetValuePosition' : ['Next to target', 'With label', 'Hidden']
|
||
}
|
||
}
|
||
|
||
constructor(name = null, visible = true, color = null, labelContent = 'name + value',
|
||
x = 1, targetElement = null, labelPosition = 'left', approximate = true,
|
||
rounding = 3, displayStyle = '— — — — — — —', targetValuePosition = 'Next to target') {
|
||
if(name == null) name = getNewName('X')
|
||
super(name, visible, color, labelContent)
|
||
this.type = 'X Cursor'
|
||
this.approximate = approximate
|
||
this.rounding = rounding
|
||
if(typeof x == 'number' || typeof x == 'string') x = new MathLib.Expression(x.toString())
|
||
this.x = x
|
||
var elementTypes = Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
|
||
this.targetElement = getObjectByName(this.targetElement, elementTypes)
|
||
this.labelPosition = labelPosition
|
||
this.displayStyle = displayStyle
|
||
this.targetValuePosition = targetValuePosition
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent,
|
||
this.x.toEditableString(), this.targetElement.name, this.labelPosition,
|
||
this.approximate, this.rounding, this.displayStyle, this.targetValuePosition]
|
||
}
|
||
|
||
getReadableString() {
|
||
if(this.targetElement == null) return `${this.name} = ${this.x.toString()}`
|
||
return `${this.name} = ${this.x.toString()}\n${this.getTargetValueLabel()}`
|
||
}
|
||
|
||
getTargetValueLabel() {
|
||
var t = this.targetElement
|
||
var approx = ''
|
||
if(this.approximate) {
|
||
approx = t.execute(this.x.execute())
|
||
approx = approx.toPrecision(this.rounding + Math.round(approx).toString().length)
|
||
}
|
||
return `${t.name}(${this.name}) = ${t.simplify(this.x.toEditableString())}` +
|
||
(this.approximate ? ' ≃ ' + approx : '')
|
||
}
|
||
|
||
getLabel() {
|
||
switch(this.labelContent) {
|
||
case 'name':
|
||
return this.name
|
||
break;
|
||
case 'name + value':
|
||
switch(this.targetValuePosition) {
|
||
case 'Next to target':
|
||
case 'Hidden':
|
||
return `${this.name} = ${this.x.toString()}`
|
||
break;
|
||
case 'With label':
|
||
return this.getReadableString()
|
||
break;
|
||
}
|
||
case 'null':
|
||
return ''
|
||
}
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
var xpos = canvas.x2px(this.x.execute())
|
||
switch(this.displayStyle) {
|
||
case '— — — — — — —':
|
||
var dashPxSize = 10
|
||
for(var i = 0; i < canvas.canvasSize.height; i += dashPxSize*2)
|
||
canvas.drawLine(ctx, xpos, i, xpos, i+dashPxSize)
|
||
break;
|
||
case '⸺⸺⸺⸺⸺⸺':
|
||
canvas.drawXLine(ctx, this.x.execute())
|
||
break;
|
||
case '• • • • • • • • • •':
|
||
var pointDistancePx = 10
|
||
var pointSize = 2
|
||
ctx.beginPath();
|
||
for(var i = 0; i < canvas.canvasSize.height; i += pointDistancePx)
|
||
ctx.ellipse(xpos-pointSize/2, i-pointSize/2, pointSize, pointSize)
|
||
ctx.fill();
|
||
break;
|
||
}
|
||
|
||
// Label
|
||
var text = this.getLabel()
|
||
ctx.font = "14px sans-serif"
|
||
var textSize = canvas.measureText(ctx, text, 7)
|
||
|
||
switch(this.labelPosition) {
|
||
case 'left':
|
||
canvas.drawVisibleText(ctx, text, xpos-textSize.width-5, textSize.height+5)
|
||
break;
|
||
case 'right':
|
||
canvas.drawVisibleText(ctx, text, xpos+5, textSize.height+5)
|
||
break;
|
||
}
|
||
|
||
if(this.targetValuePosition == 'Next to target' && this.targetElement != null) {
|
||
var text = this.getTargetValueLabel()
|
||
var textSize = canvas.measureText(ctx, text, 7)
|
||
var ypox = canvas.y2px(this.targetElement.execute(this.x.execute()))
|
||
switch(this.labelPosition) {
|
||
case 'left':
|
||
canvas.drawVisibleText(ctx, text, xpos-textSize.width-5, ypox+textSize.height)
|
||
break;
|
||
case 'right':
|
||
canvas.drawVisibleText(ctx, text, xpos+5, ypox.textSize.height)
|
||
break;
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
update() {
|
||
if(typeof this.targetElement == 'string') {
|
||
var elementTypes = Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
|
||
this.targetElement = getObjectByName(this.targetElement, elementTypes)
|
||
}
|
||
}
|
||
}
|
||
|
||
const types = {
|
||
'Point': Point,
|
||
'Function': Function,
|
||
'Gain Bode': GainBode,
|
||
'Somme gains Bode': SommeGainsBode,
|
||
'Phase Bode': PhaseBode,
|
||
'X Cursor': CursorX
|
||
}
|
||
|
||
var currentObjects = {}
|
||
|
||
function getObjectByName(objName, objType = null) {
|
||
var objectTypes = Object.keys(currentObjects)
|
||
if(typeof objType == 'string') {
|
||
if(currentObjects[objType] == undefined) return null
|
||
objectTypes = [objType]
|
||
}
|
||
if(Array.isArray(objType)) objectTypes = objType
|
||
var retObj = null
|
||
objectTypes.forEach(function(objType){
|
||
if(currentObjects[objType] == undefined) return null
|
||
currentObjects[objType].forEach(function(obj){
|
||
if(obj.name == objName) retObj = obj
|
||
})
|
||
})
|
||
return retObj
|
||
}
|
||
|
||
|
||
|
||
function getObjectsName(objType) {
|
||
if(currentObjects[objType] == undefined) return []
|
||
return currentObjects[objType].map(obj => obj.name)
|
||
}
|
||
|
||
function createNewRegisteredObject(objType) {
|
||
if(Object.keys(types).indexOf(objType) == -1) return null // Object type does not exist.
|
||
var newobj = new types[objType]()
|
||
if(Object.keys(currentObjects).indexOf(objType) == -1) {
|
||
currentObjects[objType] = []
|
||
}
|
||
currentObjects[objType].push(newobj)
|
||
return newobj
|
||
}
|