85 lines
3.5 KiB
JavaScript
85 lines
3.5 KiB
JavaScript
/**
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* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
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* Copyright (C) 2022 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 "common.js" as Common
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.import "../mathlib.js" as MathLib
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.import "../parameters.js" as P
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.import "../math/latex.js" as Latex
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class Point extends Common.DrawableObject {
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static type(){return 'Point'}
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static displayType(){return qsTr('Point')}
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static displayTypeMultiple(){return qsTr('Points')}
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static properties() {return {
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[QT_TRANSLATE_NOOP('prop','x')]: 'Expression',
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[QT_TRANSLATE_NOOP('prop','y')]: 'Expression',
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[QT_TRANSLATE_NOOP('prop','labelPosition')]: P.Enum.Position,
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[QT_TRANSLATE_NOOP('prop','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 = 'above', pointStyle = '●') {
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if(name == null) name = Common.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}, ${this.y})`
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}
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getLatexString() {
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return `${Latex.variable(this.name)} = \\left(${this.x.latexMarkup}, ${this.y.latexMarkup}\\right)`
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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+(ctx.lineWidth*2)
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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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this.drawLabel(canvas, ctx, this.labelPosition, canvasX, canvasY)
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}
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}
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