Ovviamente, visto che mi sono messo a studiare UBPorts, non poteva mancare un porting di Mandelbrot. La prima scelta e' stata QML che in pratica e' un sottoinsieme di HTML5 per quanto riguarda il codice
Il progetto completo in Clickable si trova a questo link
https://github.com/c1p81/lucainnoc-gmail.com
Piccola nota: il progetto e' dannatamente lento
Le icone nel progetto sono in formato .svg (Gimp non supporta direttamente questo formato)
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/*
* Copyright (C) 2020 Your FullName
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* ubuntu-calculator-app is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import QtQuick 2.7
import Ubuntu.Components 1.3
//import QtQuick.Controls 2.2
import QtQuick.Layouts 1.3
import Qt.labs.settings 1.0
import QtQuick.Window 2.2
MainView {
id: root
objectName: 'mainView'
applicationName: 'pixel.luca.innocenti'
automaticOrientation: true
width: Screen.width
height: Screen.height
Page {
anchors.fill: parent
header: PageHeader {
id: header
title: i18n.tr('Mandelbrot QML')
}
Canvas {
id: canvas
width: Screen.width
height: Screen.height
onPaint: {
var context=canvas.getContext("2d")
context.fillStyle="rgb(0,0,0)";
context.fillRect(0, 0, width, height);
var re_min = -2.0;
var im_min = -1.2;
var re_max = 0.7;
var im_max = 1.2;
var iterazioni = 25;
var colori = ["#FFFFFF","#FF0000","#00FF00","#0000FF","#FF00FF","#FFFF00","#00FFFF","#FFaa00","#abcedf","#fedc0a","#ab16dd","#d00fba","#edabcc","#ddacff"];
var r;
var a,b;
var x,y,x_new,y_new;
var test;
var k,j,i;
var re_factor = (re_max-re_min);
var im_factor = (im_max-im_min);
for (var i=0;i<width;i++)
{
for (var j=0;j<height;j++)
{
a = re_min+(j*re_factor/height);
b = im_min+(i*im_factor/width);
x = 0;
y = 0;
test = 0;
for (var k=0;k<iterazioni;k++)
{
x_new = (x*x)-(y*y)+a;
y_new = (2*x*y)+b;
if (((x_new*x_new)+(y_new*y_new))>4)
{
// colora il punto
r = k%12;
context.beginPath();
context.fillRect(i-1,j-1,1,1);
context.fillStyle=colori[r];
context.stroke();
break;
}
x = x_new;
y = y_new;
}
}
}
}
}
}
}
