1044 lines
40 KiB
JavaScript
1044 lines
40 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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.import "parameters.js" as P
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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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// an Enum for enumerations, an ObjectType for DrawableObjects
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// with a specific type, a List instance for lists, a
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// Dictionary instance for dictionaries...
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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 req of this.requiredBy) {
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req.update()
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}
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}
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delete() {
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for(var toRemove of this.requiredBy) {
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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': new P.Enum('top', 'bottom', 'left', 'right', 'top-left', 'top-right', 'bottom-left', 'bottom-right'),
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'pointStyle': new P.Enum('●', '✕', '＋'),
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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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ctx.fillRect(canvasX-pointSize/2, canvasY-1, pointSize, 2)
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ctx.fillRect(canvasX-1, canvasY-pointSize/2, 2, pointSize)
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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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case 'top-left':
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canvas.drawVisibleText(ctx, text, canvasX-textSize-10, canvasY-16)
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break;
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case 'top-right':
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canvas.drawVisibleText(ctx, text, canvasX+10, canvasY-16)
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break;
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case 'bottom-left':
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canvas.drawVisibleText(ctx, text, canvasX-textSize-10, canvasY+16)
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break;
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case 'bottom-right':
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canvas.drawVisibleText(ctx, text, canvasX+10, canvasY+16)
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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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'comment1': 'Ex: R+* (ℝ⁺*), N* (ℕ*), Z-* (ℤ⁻*), ]0;1[, {3;4;5}',
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'labelPosition': new P.Enum('above', 'below'),
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'displayMode': new P.Enum('application', 'function'),
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'labelX': 'number',
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'comment1': 'The following parameters are used in case of non-continuous ensembles\n(E.g: ℕ, ℤ, sets like {0;3}...)',
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'drawPoints': 'Boolean',
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'drawDashedLines': 'Boolean'
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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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drawPoints = true, drawDashedLines = true) {
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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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this.drawPoints = drawPoints
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this.drawDashedLines = drawDashedLines
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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, this.drawPoints, this.drawDashedLines]
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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, this.drawPoints, this.drawDashedLines)
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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, 7)
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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, 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, 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, drawPoints = true, drawDash = true) {
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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;
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if(inDomain instanceof MathLib.SpecialDomain && inDomain.moveSupported) {
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// Point based functions.
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previousX = inDomain.previous(previousX)
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if(previousX === null) previousX = inDomain.next(canvas.px2x(0))
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previousY = expr.execute(previousX)
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if(!drawPoints && !drawDash) return
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while(previousX !== null && canvas.x2px(previousX) < canvas.canvasSize.width) {
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var currentX = inDomain.next(previousX)
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var currentY = expr.execute(currentX)
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if(currentX === null) break;
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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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if(drawDash)
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canvas.drawDashedLine(ctx, canvas.x2px(previousX), canvas.y2px(previousY), canvas.x2px(currentX), canvas.y2px(currentY))
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if(drawPoints) {
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ctx.fillRect(canvas.x2px(previousX)-5, canvas.y2px(previousY)-1, 10, 2)
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ctx.fillRect(canvas.x2px(previousX)-1, canvas.y2px(previousY)-5, 2, 10)
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}
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}
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previousX = currentX
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previousY = currentY
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||
}
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if(drawPoints) {
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// Drawing the last cross
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ctx.fillRect(canvas.x2px(previousX)-5, canvas.y2px(previousY)-1, 10, 2)
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ctx.fillRect(canvas.x2px(previousX)-1, canvas.y2px(previousY)-5, 2, 10)
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}
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} else {
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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) {
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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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||
'om_0': new P.ObjectType('Point'),
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'pass': new P.Enum('high', 'low'),
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||
'gain': 'Expression',
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||
'labelPosition': new P.Enum('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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om_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 om_0 == "string") {
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// Point name or create one
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om_0 = getObjectByName(om_0, 'Point')
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if(om_0 == null) {
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// Create new point
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om_0 = createNewRegisteredObject('Point')
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om_0.name = getNewName('ω')
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om_0.labelContent = 'name'
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om_0.color = this.color
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labelPosition = 'below'
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}
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om_0.requiredBy.push(this)
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}
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this.om_0 = om_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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||
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||
getReadableString() {
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||
return `${this.name}: ${this.pass}-pass; ${this.om_0.name} = ${this.om_0.x}\n ${' '.repeat(this.name.length)}${this.gain.toString(true)} dB/dec`
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent,
|
||
this.om_0.name, this.pass.toString(), this.gain.toEditableString(), this.labelPosition, this.labelX]
|
||
}
|
||
|
||
execute(x=1) {
|
||
if(typeof x == 'string') x = MathLib.executeExpression(x)
|
||
if((this.pass == 'high' && x < this.om_0.x) || (this.pass == 'low' && x > this.om_0.x)) {
|
||
var dbfn = new MathLib.Expression(`${this.gain.execute()}*(ln(x)-ln(${this.om_0.x}))/ln(10)+${this.om_0.y}`)
|
||
return dbfn.execute(x)
|
||
} else {
|
||
return this.om_0.y.execute()
|
||
}
|
||
}
|
||
|
||
simplify(x = 1) {
|
||
var xval = x
|
||
if(typeof x == 'string') xval = MathLib.executeExpression(x)
|
||
if((this.pass == 'high' && xval < this.om_0.x) || (this.pass == 'low' && xval > this.om_0.x)) {
|
||
var dbfn = new MathLib.Expression(`${this.gain.execute()}*(ln(x)-ln(${this.om_0.x}))/ln(10)+${this.om_0.y}`)
|
||
return dbfn.simplify(x)
|
||
} else {
|
||
return this.om_0.y.toString()
|
||
}
|
||
}
|
||
|
||
canExecute(x = 1) {
|
||
return true
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
var base = [canvas.x2px(this.om_0.x), canvas.y2px(this.om_0.y)]
|
||
var dbfn = new MathLib.Expression(`${this.gain.execute()}*(ln(x)-ln(${this.om_0.x}))/ln(10)+${this.om_0.y}`)
|
||
var inDrawDom = new MathLib.EmptySet()
|
||
|
||
if(this.pass == 'high') {
|
||
// High pass, linear line from begining, then constant to the end.
|
||
canvas.drawLine(ctx, base[0], base[1], canvas.canvasSize.width, base[1])
|
||
inDrawDom = MathLib.parseDomain(`]-inf;${this.om_0.x}[`)
|
||
} else {
|
||
// Low pass, constant from the beginning, linear line to the end.
|
||
canvas.drawLine(ctx, base[0], base[1], 0, base[1])
|
||
inDrawDom = MathLib.parseDomain(`]${this.om_0.x};+inf[`)
|
||
}
|
||
Function.drawFunction(canvas, ctx, dbfn, inDrawDom, MathLib.Domain.R)
|
||
|
||
// Label
|
||
var text = this.getLabel()
|
||
ctx.font = "14px sans-serif"
|
||
var textSize = canvas.measureText(ctx, text, 7)
|
||
var posX = canvas.x2px(this.labelX)
|
||
var posY = canvas.y2px(this.execute(this.labelX))
|
||
switch(this.labelPosition) {
|
||
case 'above':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY-3)
|
||
break;
|
||
case 'below':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+3+textSize.height)
|
||
break;
|
||
}
|
||
}
|
||
|
||
update() {
|
||
if(currentObjects['Somme gains Bode'] != undefined) {
|
||
currentObjects['Somme gains Bode'][0].recalculateCache()
|
||
} else {
|
||
createNewRegisteredObject('Somme gains Bode')
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
class SommeGainsBode extends DrawableObject {
|
||
static type(){return 'Somme gains Bode'}
|
||
static typeMultiple(){return 'Somme gains Bode'}
|
||
static createable() {return false}
|
||
static properties() {return {
|
||
'labelPosition': new P.Enum('above', 'below'),
|
||
'labelX': 'number'
|
||
}}
|
||
|
||
constructor(name = null, visible = true, color = null, labelContent = 'name + value',
|
||
labelPosition = 'above', labelX = 1) {
|
||
if(name == null) name = 'G'
|
||
super(name, visible, color, labelContent)
|
||
this.labelPosition = labelPosition
|
||
this.labelX = labelX
|
||
this.recalculateCache()
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent, this.labelPosition, this.labelX]
|
||
}
|
||
|
||
getReadableString() {
|
||
return `${this.name} = ${getObjectsName('Gain Bode').join(' + ')}`
|
||
}
|
||
|
||
execute(x = 0) {
|
||
for(var [dbfn, inDrawDom] of this.cachedParts) {
|
||
if(inDrawDom.includes(x)) {
|
||
return dbfn.execute(x)
|
||
}
|
||
}
|
||
return null
|
||
}
|
||
|
||
canExecute(x = 1) {
|
||
return true // Should always be true
|
||
}
|
||
|
||
simplify(x = 1) {
|
||
for(var [dbfn, inDrawDom] of this.cachedParts) {
|
||
if(inDrawDom.includes(x)) {
|
||
return dbfn.simplify(x)
|
||
}
|
||
}
|
||
return ''
|
||
}
|
||
|
||
recalculateCache() {
|
||
this.cachedParts = []
|
||
// Calculating this is fairly resource expansive so it's cached.
|
||
if(currentObjects['Gain Bode'] != undefined) {
|
||
console.log('Recalculating cache gain')
|
||
// Minimum to draw (can be expended if needed, just not infinite or it'll cause issues.
|
||
var drawMin = 0.001
|
||
|
||
var baseY = 0
|
||
var om0xGains = {100000: 0} // To draw the last part
|
||
var om0xPass = {100000: 'high'} // To draw the last part
|
||
currentObjects['Gain Bode'].forEach(function(gainObj) { // Sorting by their om_0 position.
|
||
var om0x = gainObj.om_0.x.execute()
|
||
if(om0xGains[om0x] == undefined) {
|
||
om0xGains[om0x] = gainObj.gain.execute()
|
||
om0xPass[om0x] = gainObj.pass == 'high'
|
||
} else {
|
||
om0xGains[om0x+0.001] = gainObj.gain.execute()
|
||
om0xPass[om0x+0.001] = gainObj.pass == 'high'
|
||
}
|
||
baseY += gainObj.execute(drawMin)
|
||
})
|
||
// Sorting the om_0x
|
||
var om0xList = Object.keys(om0xGains).map(x => parseFloat(x)) // THEY WERE CONVERTED TO STRINGS...
|
||
om0xList.sort((a,b) => a - b)
|
||
// Adding the total gains.
|
||
var gainsBeforeP = []
|
||
var gainsAfterP = []
|
||
var gainTotal = 0
|
||
for(var om0x of om0xList){
|
||
if(om0xPass[om0x]) { // High-pass
|
||
gainsBeforeP.push(om0xGains[om0x])
|
||
gainsAfterP.push(0)
|
||
gainTotal += om0xGains[om0x] // Gain at first
|
||
} else {
|
||
gainsBeforeP.push(0)
|
||
gainsAfterP.push(om0xGains[om0x])
|
||
}
|
||
}
|
||
// Calculating parts
|
||
var previousPallier = drawMin
|
||
for(var pallier = 0; pallier <= om0xList.length; pallier++) {
|
||
var dbfn = new MathLib.Expression(`${gainTotal}*(ln(x)-ln(${previousPallier}))/ln(10)+${baseY}`)
|
||
var inDrawDom = MathLib.parseDomain(`]${previousPallier};${om0xList[pallier]}]`)
|
||
this.cachedParts.push([dbfn, inDrawDom])
|
||
previousPallier = om0xList[pallier]
|
||
baseY = dbfn.execute(om0xList[pallier])
|
||
gainTotal += gainsAfterP[pallier] - gainsBeforeP[pallier]
|
||
}
|
||
}
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
if(this.cachedParts.length > 0) {
|
||
for(var [dbfn, inDrawDom] of this.cachedParts) {
|
||
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, 7)
|
||
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-5)
|
||
break;
|
||
case 'below':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+5+textSize.height)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
class PhaseBode extends ExecutableObject {
|
||
static type(){return 'Phase Bode'}
|
||
static typeMultiple(){return 'Phases Bode'}
|
||
static properties() {return {
|
||
'om_0': new P.ObjectType('Point'),
|
||
'phase': 'Expression',
|
||
'unit': new P.Enum('°', 'deg', 'rad'),
|
||
'labelPosition': new P.Enum('above', 'below'),
|
||
'labelX': 'number'
|
||
}}
|
||
|
||
constructor(name = null, visible = true, color = null, labelContent = 'name + value',
|
||
om_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 phase == 'number' || typeof phase == 'string') phase = new MathLib.Expression(phase.toString())
|
||
this.phase = phase
|
||
if(typeof om_0 == "string") {
|
||
// Point name or create one
|
||
om_0 = getObjectByName(om_0, 'Point')
|
||
if(om_0 == null) {
|
||
// Create new point
|
||
om_0 = createNewRegisteredObject('Point')
|
||
om_0.name = getNewName('ω')
|
||
om_0.color = this.color
|
||
om_0.labelContent = 'name'
|
||
om_0.labelPosition = this.phase.execute() >= 0 ? 'bottom' : 'top'
|
||
labelPosition = 'below'
|
||
}
|
||
om_0.requiredBy.push(this)
|
||
}
|
||
this.om_0 = om_0
|
||
this.unit = unit
|
||
this.labelPosition = labelPosition
|
||
this.labelX = labelX
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent,
|
||
this.om_0.name, this.phase.toEditableString(), this.unit, this.labelPosition, this.labelX]
|
||
}
|
||
|
||
getReadableString() {
|
||
return `${this.name}: ${this.phase.toString(true)}${this.unit} at ${this.om_0.name} = ${this.om_0.x}\n`
|
||
}
|
||
|
||
execute(x=1) {
|
||
if(typeof x == 'string') x = MathLib.executeExpression(x)
|
||
if(x < this.om_0.x) {
|
||
return this.om_0.y.execute()
|
||
} else {
|
||
return this.om_0.y.execute() + this.phase.execute()
|
||
}
|
||
}
|
||
|
||
simplify(x = 1) {
|
||
var xval = x
|
||
if(typeof x == 'string') xval = MathLib.executeExpression(x)
|
||
if(xval < this.om_0.x) {
|
||
return this.om_0.y.toString()
|
||
} else {
|
||
var newExp = this.om_0.y.toEditableString() + ' + ' + this.phase.toEditableString()
|
||
return (new MathLib.Expression(newExp)).toString()
|
||
}
|
||
}
|
||
|
||
canExecute(x = 1) {
|
||
return true
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
var baseX = canvas.x2px(this.om_0.x.execute())
|
||
var omy = this.om_0.y.execute()
|
||
var augmt = this.phase.execute()
|
||
var baseY = canvas.y2px(omy)
|
||
var augmtY = canvas.y2px(omy+augmt)
|
||
// Before change line.
|
||
canvas.drawLine(ctx, 0, baseY, Math.min(baseX, canvas.canvasSize.height), baseY)
|
||
// Transition line.
|
||
canvas.drawLine(ctx, baseX, baseY, baseX, augmtY)
|
||
// After change line
|
||
canvas.drawLine(ctx, Math.max(0, baseX), augmtY, canvas.canvasSize.width, augmtY)
|
||
|
||
// Label
|
||
var text = this.getLabel()
|
||
ctx.font = "14px sans-serif"
|
||
var textSize = canvas.measureText(ctx, text, 7)
|
||
var posX = canvas.x2px(this.labelX)
|
||
var posY = canvas.y2px(this.execute(this.labelX))
|
||
switch(this.labelPosition) {
|
||
case 'above':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY-5)
|
||
break;
|
||
case 'below':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+5+textSize.height)
|
||
break;
|
||
}
|
||
}
|
||
|
||
update() {
|
||
if(currentObjects['Somme phases Bode'] != undefined) {
|
||
currentObjects['Somme phases Bode'][0].recalculateCache()
|
||
} else {
|
||
createNewRegisteredObject('Somme phases Bode')
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
class SommePhasesBode extends ExecutableObject {
|
||
static type(){return 'Somme phases Bode'}
|
||
static typeMultiple(){return 'Somme phases Bode'}
|
||
static createable() {return false}
|
||
static properties() {return {
|
||
'labelPosition': new P.Enum('above', 'below'),
|
||
'labelX': 'number'
|
||
}}
|
||
|
||
constructor(name = null, visible = true, color = null, labelContent = 'name + value',
|
||
labelPosition = 'above', labelX = 1) {
|
||
if(name == null) name = 'φ'
|
||
super(name, visible, color, labelContent)
|
||
this.labelPosition = labelPosition
|
||
this.labelX = labelX
|
||
this.recalculateCache()
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent, this.labelPosition, this.labelX]
|
||
}
|
||
|
||
getReadableString() {
|
||
return `${this.name} = ${getObjectsName('Phase Bode').join(' + ')}`
|
||
}
|
||
|
||
execute(x=1) {
|
||
if(typeof x == 'string') x = MathLib.executeExpression(x)
|
||
for(var i = 0; i < this.om0xList.length-1; i++) {
|
||
if(x >= this.om0xList[i] && x < this.om0xList[i+1]) return this.phasesList[i]
|
||
}
|
||
}
|
||
|
||
simplify(x = 1) {
|
||
var xval = x
|
||
if(typeof x == 'string') xval = MathLib.executeExpression(x)
|
||
for(var i = 0; i < this.om0xList.length-1; i++) {
|
||
if(xval >= this.om0xList[i] && xval < this.om0xList[i+1]) {
|
||
return (new MathLib.Expression(this.phasesExprList[i])).simplify()
|
||
}
|
||
}
|
||
return '0'
|
||
}
|
||
|
||
canExecute(x = 1) {
|
||
return true
|
||
}
|
||
|
||
recalculateCache() {
|
||
// Minimum to draw (can be expended if needed, just not infinite or it'll cause issues.
|
||
var drawMin = 0.001
|
||
var drawMax = 100000
|
||
this.om0xList = [drawMin, drawMax]
|
||
this.phasesList = [0]
|
||
this.phasesExprList = ['0']
|
||
var phasesDict = {}
|
||
var phasesExprDict = {}
|
||
phasesDict[drawMax] = 0
|
||
|
||
if(currentObjects['Phase Bode'] != undefined) {
|
||
console.log('Recalculating cache phase')
|
||
for(var obj of currentObjects['Phase Bode']) {
|
||
this.om0xList.push(obj.om_0.x.execute())
|
||
if(phasesDict[obj.om_0.x.execute()] == undefined) {
|
||
phasesDict[obj.om_0.x.execute()] = obj.phase.execute()
|
||
phasesExprDict[obj.om_0.x.execute()] = obj.phase.toEditableString()
|
||
} else {
|
||
phasesDict[obj.om_0.x.execute()] += obj.phase.execute()
|
||
phasesExprDict[obj.om_0.x.execute()] += '+' + obj.phase.toEditableString()
|
||
}
|
||
this.phasesList[0] += obj.om_0.y.execute()
|
||
this.phasesExprList[0] += '+' + obj.om_0.y.toEditableString()
|
||
}
|
||
this.om0xList.sort((a,b) => a - b)
|
||
var totalAdded = this.phasesList[0]
|
||
for(var i = 1; i < this.om0xList.length; i++) {
|
||
this.phasesList[i] = this.phasesList[i-1] + phasesDict[this.om0xList[i]]
|
||
this.phasesExprList[i] = this.phasesExprList[i-1] + '+' + phasesDict[this.om0xList[i]]
|
||
}
|
||
}
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
for(var i = 0; i < this.om0xList.length-1; i++) {
|
||
var om0xBegin = canvas.x2px(this.om0xList[i])
|
||
var om0xEnd = canvas.x2px(this.om0xList[i+1])
|
||
var baseY = canvas.y2px(this.phasesList[i])
|
||
var nextY = canvas.y2px(this.phasesList[i+1])
|
||
canvas.drawLine(ctx, om0xBegin, baseY, om0xEnd, baseY)
|
||
canvas.drawLine(ctx, om0xEnd, baseY, om0xEnd, nextY)
|
||
}
|
||
|
||
// Label
|
||
var text = this.getLabel()
|
||
ctx.font = "14px sans-serif"
|
||
var textSize = canvas.measureText(ctx, text, 7)
|
||
var posX = canvas.x2px(this.labelX)
|
||
var posY = canvas.y2px(this.execute(this.labelX))
|
||
switch(this.labelPosition) {
|
||
case 'above':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY-5)
|
||
break;
|
||
case 'below':
|
||
canvas.drawVisibleText(ctx, text, posX-textSize.width/2, posY+5+textSize.height)
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
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': new P.Enum(...elementNames),
|
||
'labelPosition': new P.Enum('left', 'right'),
|
||
'approximate': 'Boolean',
|
||
'rounding': 'number',
|
||
'displayStyle': new P.Enum(
|
||
'— — — — — — —',
|
||
'⸺⸺⸺⸺⸺⸺',
|
||
'• • • • • • • • • •'
|
||
),
|
||
'targetValuePosition' : new P.Enum('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
|
||
this.targetElement = targetElement
|
||
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, this.labelPosition,
|
||
this.approximate, this.rounding, this.displayStyle, this.targetValuePosition]
|
||
}
|
||
|
||
getReadableString() {
|
||
if(this.getTargetElement() == null) return `${this.name} = ${this.x.toString()}`
|
||
return `${this.name} = ${this.x.toString()}\n${this.getTargetValueLabel()}`
|
||
}
|
||
|
||
getTargetValueLabel() {
|
||
var t = this.getTargetElement()
|
||
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}) = ${t.simplify(this.x.toEditableString())}` +
|
||
(this.approximate ? ' ≃ ' + approx : '')
|
||
}
|
||
|
||
getTargetElement() {
|
||
// TODO: Use the dependency system instead.
|
||
var elementTypes = Object.keys(currentObjects).filter(objType => types[objType].prototype instanceof ExecutableObject)
|
||
return getObjectByName(this.targetElement, elementTypes)
|
||
}
|
||
|
||
getLabel() {
|
||
switch(this.labelContent) {
|
||
case 'name':
|
||
return this.name
|
||
break;
|
||
case 'name + value':
|
||
switch(this.targetValuePosition) {
|
||
case 'Next to target':
|
||
case 'Hidden':
|
||
return `${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.getTargetElement() != null) {
|
||
var text = this.getTargetValueLabel()
|
||
var textSize = canvas.measureText(ctx, text, 7)
|
||
var ypox = canvas.y2px(this.getTargetElement().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;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
class Sequence extends ExecutableObject {
|
||
static type(){return 'Sequence'}
|
||
static typeMultiple(){return 'Sequences'}
|
||
static properties() {return {
|
||
'drawPoints': 'Boolean',
|
||
'drawDashedLines': 'Boolean',
|
||
'defaultExpression': new P.Dictionary('string', 'int', /^.+$/, /^\d+$/, '{name}[n+', '] = ', true),
|
||
'comment1': 'Note: Use {name}[n] to refer to {name}ₙ, {name}[n+1] for {name}ₙ₊₁...',
|
||
'baseValues': new P.Dictionary('string', 'int', /^.+$/, /^\d+$/, '{name}[', '] = '),
|
||
}}
|
||
|
||
constructor(name = null, visible = true, color = null, labelContent = 'name + value',
|
||
drawPoints = true, drawDashedLines = true, defaultExp = {1: "n"},
|
||
baseValues = {0: 0}) {
|
||
if(name == null) name = getNewName('uvwPSUVWabcde')
|
||
super(name, visible, color, labelContent)
|
||
this.drawPoints = drawPoints
|
||
this.drawDashedLines = drawDashedLines
|
||
this.defaultExpression = defaultExp
|
||
this.baseValues = baseValues
|
||
this.update()
|
||
}
|
||
|
||
export() {
|
||
return [this.name, this.visible, this.color.toString(), this.labelContent,
|
||
this.drawPoints, this.drawDashedLines, this.defaultExpression, this.baseValues]
|
||
}
|
||
|
||
update() {
|
||
super.update()
|
||
if(
|
||
this.sequence == null || this.baseValues != this.sequence.baseValues ||
|
||
this.sequence.name != this.name ||
|
||
this.sequence.expr != Object.values(this.defaultExpression)[0] ||
|
||
this.sequence.valuePlus != Object.keys(this.defaultExpression)[0]
|
||
)
|
||
this.sequence = new MathLib.Sequence(
|
||
this.name, this.baseValues,
|
||
Object.keys(this.defaultExpression)[0],
|
||
Object.values(this.defaultExpression)[0]
|
||
)
|
||
}
|
||
|
||
|
||
getReadableString() {
|
||
return this.sequence.toString()
|
||
}
|
||
|
||
execute(x = 1) {
|
||
if(x % 1 == 0)
|
||
return this.sequence.execute(x)
|
||
return null
|
||
}
|
||
canExecute(x = 1) {return x%1 == 0}
|
||
// Simplify returns the simplified string of the expression.
|
||
simplify(x = 1) {
|
||
if(x % 1 == 0)
|
||
return this.sequence.simplify(x)
|
||
return null
|
||
}
|
||
|
||
draw(canvas, ctx) {
|
||
Function.drawFunction(canvas, ctx, this.sequence, canvas.logscalex ? MathLib.Domain.NE : MathLib.Domain.N, MathLib.Domain.R, this.drawPoints, this.drawDashedLines)
|
||
}
|
||
}
|
||
|
||
const types = {
|
||
'Point': Point,
|
||
'Function': Function,
|
||
'Gain Bode': GainBode,
|
||
'Somme gains Bode': SommeGainsBode,
|
||
'Phase Bode': PhaseBode,
|
||
'Somme phases Bode': SommePhasesBode,
|
||
'X Cursor': CursorX,
|
||
'Sequence': Sequence
|
||
}
|
||
|
||
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, args=[]) {
|
||
if(Object.keys(types).indexOf(objType) == -1) return null // Object type does not exist.
|
||
var newobj = new types[objType](...args)
|
||
if(Object.keys(currentObjects).indexOf(objType) == -1) {
|
||
currentObjects[objType] = []
|
||
}
|
||
currentObjects[objType].push(newobj)
|
||
return newobj
|
||
}
|