pax_global_header00006660000000000000000000000064135304605460014520gustar00rootroot0000000000000052 comment=f7beff2fffa87f93f4c343e80ef38f1f2267117b pysatellites-2.6/000077500000000000000000000000001353046054600141115ustar00rootroot00000000000000pysatellites-2.6/.gitignore000066400000000000000000000000421353046054600160750ustar00rootroot00000000000000*~ __pycache__/ build/ *.pyc UI_* pysatellites-2.6/AUTHORS000066400000000000000000000001571353046054600151640ustar00rootroot00000000000000Jean-Baptiste BUTET Bastien Georges Khaznadar pysatellites-2.6/COPYING000066400000000000000000001043741353046054600151550ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. 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But first, please read . pysatellites-2.6/Changelog000066400000000000000000000040611353046054600157240ustar00rootroot00000000000000JB : Jean-Baptiste BUTET BG : Bastient GRAVIERE GK : Georges Khaznadar 2008-03-12 : JB, interface graphique. 2008-04-08 : GK, méthode d'intégration, validation avec un champ de gravité terrestre. 2008-04-11 : GK, modification de la fonction verifie_et_traduit afin de faciliter l'entrée d'expressions complètes. Par exemple on peut rentrer 2*3.14*(35786+6400)*1000/24/3600 comme vitesse tangentielle d'un satellite géostationnaire, et on voit bien l'orbite circulaire se construire. 2008-04-11 : GK, calcul de la période de révolution, dans le cas où l'énergie mécanique Em est négative, par la méthode suivante (k=mMG) : - calcul du grand axe : a = - k/2Em - calcul de la période : T = 2pi(a³/k)^0.5 2008-04-12 : GK, mise en place d'une liste d'astres à l'aide de Wikipedia et intégration avec l'application xplanet et les textures de celestia pour tracer l'image de la planète. Changé les appels à print pour tracer le programme en appels valués à self.debug Changement de quelques widgets : combo pour choisir l'astre, renseignements pour le comparer à la Terre. 2008-04-15 : GK, correction de la prise des données de vitesse. Redressé l'axe Oy. Activé les graphiques pour Vx et Vy. Ajouté une fonction d'agrandissement pour les graphiques. 2008-04-20 : GK, correction de problèmes avec le tracé et l'effacement de points de la trajectoire, quelques changements de style, amélioration des graphiques agrandis, implémenté le cas des énergies mécaniques positives. Ajouté le traitement d'options en ligne de commande. Réglé la gestion des chemins d'accès aux répertoires. 2008-04-26 : GK, ajout de support pour créer une vidéo vue du satellite. la vitesse initiale Vx a été réglée négative, pour un lancer vers l'est. Séparation du code de vérification/calcul de nombres flottants.pysatellites-2.6/LISEZMOI000066400000000000000000000020051353046054600152640ustar00rootroot00000000000000Le logiciel pysatellites permet de simuler le lancement d'un satellite autour de nombreux astres connus. C'est un logiciel libre, diffusé sous la licence GPL version 3. Voyez les fichiers COPYING Changelog et AUTHORS Pour être pleinement fonctionnel, il est préférable d'installer en même temps les logiciels libres xplanet et la base de données du logiciel celestia ;) de toute façon, une personne intéressée par pysatellites sera très probablement aussi intéressée par xplanet et celestia, pour de nombreux usages complémentaires. Certaines formules sont utilisées pour faciliter la simulation : - la méthode d'intégration de Runge-Kutta qui est d'ordre 4, beaucoup pkus efficace que al méthode d'Euler - un calcul des paramètres de la trajectoire à partir des données connues dès le lancement : énergie mécanique, grand axe, excentricité, période, etc. Le fondement théorique des méthodes emplyées est décrit dans le fichier methodes.tm, qui s'ouvre à l'aide du logiciel libre TexMacs. pysatellites-2.6/Makefile000066400000000000000000000021771353046054600155600ustar00rootroot00000000000000DESTDIR = STELLARIUM_TEXTURES = /usr/share/stellarium/textures all: user-interface pysatellites.1 pysatellites.1: manpage.xml xsltproc --nonet /usr/share/sgml/docbook/stylesheet/xsl/nwalsh/manpages/docbook.xsl manpage.xml clean: rm -f *~ *.pyc rm -rf __pycache__ rm -f UI_* rm -rf build user-interface: UI_pysat.py UI_graphe.py UI_%.py: %.ui pyuic5 $< -o $@ install: all mkdir -p $(DESTDIR)/usr/bin install -m 755 pysatellites $(DESTDIR)/usr/bin mkdir -p $(DESTDIR)/usr/share/applications install -m 644 pysatellites.desktop $(DESTDIR)/usr/share/applications mkdir -p $(DESTDIR)/usr/share/pysatellites install -m 644 *.py $(DESTDIR)/usr/share/pysatellites cp -a icones $(DESTDIR)/usr/share/pysatellites # install images from stellarium-data; # stellarium-data is not necessary later. mkdir -p $(DESTDIR)/usr/share/pysatellites/images for d in $(STELLARIUM_TEXTURES); do \ for f in $$(ls $$d/*.png); do \ g=$(DESTDIR)/usr/share/pysatellites/images/$$(echo $$(basename $$f)| sed -e 's/png/jpg/'); \ convert $$f $$g; \ done; \ done .PHONY = user-interface install clean install-textures all install-for-debian pysatellites-2.6/astres.py000066400000000000000000000066201353046054600157700ustar00rootroot00000000000000# -*- coding: utf-8 -*- """La plupart de ces données ont été adaptées à partir de la version anglaise de Wikipedia : http://en.wikipedia.org """ from flottant import traduit astreNom=[ # nom_local, nom_stellarium, masse_kg, rayon_km, commentaire, jour, flipped # flipped fait référence à une propréiété dans le fichier Planet.cpp # de src/libplanet du logiciel xplanet. ["Terre","earth-clouds","6x10^24","6400","Planète du système solaire","1","1"], ["Soleil","sun","6x10^31","695000","Étoile du système solaire","26","1"], ["Lune","moon","7.33x10^22","1740","Lune de Terre","27.3216","1"], ["Amalthée","amalthea","2.08x10^18","83.5","Lune de Jupiter","0.49817943","-1"], ["Callisto","callisto","1.076x10^23 ","2410","Lune de Jupiter","16.6890184","-1"], ["Deimos","deimos","1.48x10^15","6.2","Lune de Mars","1.26244","-1"], ["Dione","dione","1.1x10^21","561","Lune de Saturne","2.736915","-1"], ["Encelade","enceladus","1.08x10^20","252","Lune de Saturne","1.370218","-1"], ["Épiméthée","epimetheus","57","5.3x10^17","Lune de Saturne","0.694333517","-1"], ["Europe","europa","4.80x10^22","1569","Lune de Jupiter","3.551181","-1"], ["Ganymède","ganymede","1.4819x10^23","2634","Lune de Jupiter","7.15455296","-1"], ["Hyperion","hyperion","0.558x10^19","280","Lune de Saturne","21.27661","-1"], ["Iapète","iapetus","1.80x10^21","1450","Lune de Saturne","79.3215","-1"], ["Io","io","8.9319x10^22","1821.3","Lune de Jupiter","1.769137786","-1"], ["Janus","janus","1.91x10^18","173","Lune de Saturne","0.694660342","-1"], ["Jupiter","jupiter","1.90x10^27 ","70x10^3","Planète du système solaire","9.925/24","-1"], ["Mars","mars","6.4185x10^23","3390","Planète du système solaire","1.025957","-1"], ["Mercure","mercury","3.3022x10^23","2440","Planète du système solaire","58.646","-1"], ["Mimas","mimas","3.7493x10^19","390","Lune de Saturne","0.9424218 ","-1"], ["Miranda","miranda","6.59x10^19","470","Lune d'Uranus","1.413479","1"], ["Neptune","neptune","1.0243x10^26","24750","Planète du système solaire","0.6713","-1"], ["Obéron","oberon","3.014x10^21","761.4","Lune d'Uranus","13.463234","1"], ["Phobos","phobos","1.07x10^16","11.1","Lune de Mars","0.318 910 23","-1"], ["Pluton","pluto","1.30x10^22","1195","Planète du système solaire","-6.387230","1"], ["Prométhée","prometheus","1.566x10^17","100","Lune de Saturne","0.612990038","-1"], ["Protée","proteus","4.4x10^19","410","Lune de Neptune","1.12231477","-1"], ["Rhéa","rhea","2.3065x10^21","1525","Lune de Saturne","4.518212","-1"], ["Saturne","saturn","5.6846x10^26","60x10^3","Planète du système solaire","0.445","-1"], ["Tethys","tethys","6.174x10^20","1060","Lune de Saturne","1.887802","-1"], ["Titan","titan","1.345x10^23","2576","Lune de Saturne","15.945","-1"], ["Triton","triton","2.14x10^22","1353","Lune de Neptune","-5.877","-1"], ["Umbriel","umbriel","1.2x10^21","1169","Lune d'Uranus","4.144","1"], ["Vénus","venus","4.8685x10^24","6051","Planète du système solaire","-243.0185","1"] ] class Astre: def __init__(self,cle): for a in astreNom: if a[1]==cle: break self.nom=a[0] self.cle=cle self.masse=traduit(a[2]) self.rayon=1000*traduit(a[3]) self.commentaire=a[4] self.rotationSiderale=a[5] #unité jour self.flip=a[6] pysatellites-2.6/authors000066400000000000000000000001571353046054600155240ustar00rootroot00000000000000Jean-Baptiste BUTET Bastien Georges Khaznadar pysatellites-2.6/copying000066400000000000000000001043741353046054600155150ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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But first, please read . pysatellites-2.6/debug.py000066400000000000000000000003131353046054600155460ustar00rootroot00000000000000# -*- coding: utf-8 -*- class Debug: def __init__(self, debugLevel): self.debugLevel=debugLevel def __call__(self,level,msg): if self.debugLevel > level: print(msg) pysatellites-2.6/flottant.py000066400000000000000000000023511353046054600163170ustar00rootroot00000000000000# -*- coding: utf-8 -*- def traduit(chaine): """cette méthode vérifie la validité de la chaîne en fonction de sa provenance et, au besoin, transforme des expressions possibles (10^11) en grandeur acceptée par python""" # on force le type chaîne pour pouvoir faire des évaluations. chaine=str(chaine).replace(" ","") # et retrait de tous les espaces #vérification de la présence d'un float correct, sinon tente des modifs. try : chaine=float(eval(chaine)) except : chaine=chaine.replace("10^","e") #remplace la chaine 10^ par e else: return chaine try : chaine=float(eval(chaine)) except : #remplace les "x" pour la multiplication chaine=chaine.replace("x","*") chaine=chaine.replace("X","*") else: return chaine try : chaine=float(eval(chaine)) except : #remplace les "*" devant un "e" chaine=chaine.replace("*e","e") else: return chaine try : chaine=float(eval(chaine)) except : #self.debug(0,u"Erreur : %s, même après les tranformations, n'est pas une expression acceptable" %chaine) return 1.0 else: return chaine return 1.0 pysatellites-2.6/graphe.ui000066400000000000000000000031761353046054600157250ustar00rootroot00000000000000 Graphe 0 0 302 516 Dialog 110 480 81 32 Qt::Horizontal QDialogButtonBox::Close 10 10 270 450 buttonBox accepted() Graphe accept() 248 254 157 274 buttonBox rejected() Graphe reject() 316 260 286 274 pysatellites-2.6/icones/000077500000000000000000000000001353046054600153715ustar00rootroot00000000000000pysatellites-2.6/icones/pysatellites.png000066400000000000000000000115521353046054600206250ustar00rootroot00000000000000PNG  IHDR@@iqsRGBbKGD pHYs^tIME)+&IDATxieWu{8ӝ{_ք$,(P&e+⤒J!)WW$(*e'ePQd۱K2Xh#@HBiMH=~w<{ù2U$jIvխ;^_k?m?YxhB%29*}-ˏx' _W${OZ^,q0^M+O^3:WbrXpǽvA "WO~7> /_^/8Y_DE'e;}=#>#OW5ȷiǖ_qnڃ6~_'[~"rh}O>bno A [2ܵkx_F57=lnNpBD_벻|zͮ~÷'i JDnW:=퟾,k;fu0%"oV閿w˝^ZVD_;>O??u/=rWʛE}#~S3w>~WrՏX󦕵a=sBα9&Ld^;N}]+{pPJ@ ",[[OoypgIb4B5Ve5JRZB($Ԉ+Y>~|A666߱{{CRm&b6z6ZCU{v'k{/tVQz_S;V* m 1kAS91PQE9[icؾ=s&%AJ'(c>0Y'C rg֒e-zI0m",@'p&UU'h@a屄p J\֚9R,..4tS'N6.z\2fľ^K8P]{r`?6L^yEv0Yv%igET z6t#=K7#_}w|֭?vaq^:uiNWLN=ƙAS_lll>L9T7ū.ן3*0ki'EMn!\^9=)p4bG7ژ&5nww=uec,Jy=t;j٥V{:;/bK3x> ׼GOt"fgp\N-ikaq>Cd$:UblaGIT>30N,i*j_믺ҏc_2|Ew,n(w8_M1q&)Zڝ9F$VݝG1U>-j:,-e1cx*І*/hLQ!'Oq ʲ+8k P BIjD<ՈuA5 ByLgMMUk60\SxgyK A|tsXԕØeA9P:e]9,1 ]ҬcMEYKo.#]3킎uc'b~ gTuIe DQDbLDa$Đ1 ($x$xk Nb:-KC!cfR|MJmePVI#Z;ʋߕ-@&I~[#6SGol#l hoN :a^<8q "t2e2"" x2kE# 1:c0q]EeRAQ3C*Wa}c0[-(')b'T YϹY  GZKF&#r xځ(#KZGAF Lb|*Kʠp0@LU;O4*JB# `A#&jf"m&&,Q5&wEL+BpHX&0¹D" 8W#@ B2iP8O3 h*fFUUD6BlxSkB`&Rk*BP r@${4SD3@)11Fuh(@ &CV;$zg4qP@ӀQͺxTP!$2_SUMNCGIP* v1ImlGy޹F͜ߜyB:Än#&mLd BMGN`Ѣ5>8$F煠i@]$ݤ"bZI3jB'|ak:aRo. 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C'est un logiciel libre, diffusé sous la licence GPL version 3. Voyez les fichiers COPYING Changelog et AUTHORS Pour être pleinement fonctionnel, il est préférable d'installer en même temps les logiciels libres xplanet et la base de données du logiciel celestia ;) de toute façon, une personne intéressée par pysatellites sera très probablement aussi intéressée par xplanet et celestia, pour de nombreux usages complémentaires. Certaines formules sont utilisées pour faciliter la simulation : - la méthode d'intégration de Runge-Kutta qui est d'ordre 4, beaucoup pkus efficace que al méthode d'Euler - un calcul des paramètres de la trajectoire à partir des données connues dès le lancement : énergie mécanique, grand axe, excentricité, période, etc. Le fondement théorique des méthodes emplyées est décrit dans le fichier methodes.tm, qui s'ouvre à l'aide du logiciel libre TexMacs. pysatellites-2.6/mainWindow.py000066400000000000000000000173141353046054600166050ustar00rootroot00000000000000#-*- coding: utf-8 -*- """ code pour la fenêtre principale de pysatellites """ licence=""" the file mainWindow.py is part of the package pysatellites. Copyright (C) 2007-2008 Jean-Baptiste Butet , (C) 2007-2008 Georges Khaznadar 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, either version 3 of the License, or (at your option) any later version. This program 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 . """ import sys, os from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * from glob import glob from UI_pysat import Ui_MainWindow from traj_satellite import Trajectoire from math import pi, cos, sin, fabs from astres import astreNom from point import Point from matplotlib_widget import MyMplCanvas from repertoire import repertoire from video import Cinema import flottant as flottant from debug import Debug class StartQT5(QMainWindow): def __init__(self, parent, rep=None , debugger=Debug(1), app=None): QMainWindow.__init__(self) QWidget.__init__(self, parent) self.debug=debugger self.app=app self.ui = Ui_MainWindow() self.ui.setupUi(self) if rep == None: self.rep=repertoire(sys.argv[0]) else: self.rep=rep self.trajectoire = Trajectoire(self.ui.afficheur, 6400, self, debugger=self.debug) self.initAstres() self.ui.masse_astre.setText("6x10^24") self.ui.rayon_astre.setText("6400") os.chdir(self.rep.chemin("defaut")) self.image_sat=QPixmap("icones/sat_mini.gif") self.connexions_signaux() self.placeDepart() self.cinemaThread=None self.progress=None def getRayonAstre(self): return flottant.traduit(self.ui.rayon_astre.text())*1000 def placeDepart(self): """ place la croix à la position de départ du satellite et figure le vecteur vitesse """ self.trajectoire.efface() x=0 y=(flottant.traduit(self.ui.rayon_astre.text())+flottant.traduit(self.ui.altitude_objet.text()))*1000 self.trajectoire.setEchelle(y,"max") vx=flottant.traduit(self.ui.vitesse_tangentielle_objet.text()) vy=flottant.traduit(self.ui.vitesse_normale_objet.text()) self.trajectoire.dessine([(x,y,0,vx,vy,0)]) self.trajectoire.update() def initAstres(self): """ Peuple le combo avec les noms d'astres """ for a in astreNom: self.ui.astreCombo.addItem(self.tr(a[0])) self.ui.astreCombo.setEditable(False) self.ui.astreCombo.setCurrentIndex(0) self.astreCourant="earth" self.choisi_astre(0) def connexions_signaux(self): self.ui.Bouton_Lancer.clicked.connect(self.trajectoire.lance) self.ui.Button_efface.clicked.connect(self.efface_trajectoire) self.ui.bouton_video.clicked.connect(self.cinema) self.ui.altitude_objet.editingFinished.connect(self.placeDepart) self.ui.astreCombo.currentIndexChanged.connect(self.choisi_astre) self.ui.radioButton_Frenet.toggled.connect(self.choisi_coordoonees) timer = QTimer(self); timer.timeout.connect(self.routines); timer.start(1000); self.ui.mTerre.setReadOnly (True) self.ui.rTerre.setReadOnly (True) self.ui.auSujetAstre.setReadOnly (True) def change_comportement_effacege(self,int): pass def efface_trajectoire(self): self.trajectoire.efface() self.placeDepart() def cinema(self): if self.cinemaThread!=None and self.cinemaThread.isAlive(): return import datetime,copy from numpy import arange date=datetime.datetime(2008,4,25) date=date.today() if self.trajectoire.traj != None: liste_temps=arange(0,self.trajectoire.t,self.trajectoire.dt) pas=10 # une image pour 10 calculs numériques titre=self.tr("Calcul de la vidéo") legende=self.tr("Avancement ...") echap=self.tr("Arrêt") self.progress=QProgressDialog(legende,echap,0,len(liste_temps)/pas) self.progress.setWindowTitle(titre) self.progress.setValue(0) self.progress.show() # on lance le thread avec une copie de la liste calculée self.cinemaThread=Cinema(self.rep, self.astreCourant, date, liste_temps, copy.copy(self.trajectoire.traj.pv), "380x240", pas=pas, boum=self.trajectoire.boum, debugger=self.debug) self.cinemaThread.start() def routines(self): if self.cinemaThread!=None and self.cinemaThread.isAlive(): self.progress.setValue(self.cinemaThread.nbImage) if self.progress.wasCanceled(): self.progress.close() self.cinemaThread.fini=True if self.cinemaThread.fini: self.progress.setValue(self.progress.maximum()+1) if self.progress: self.progress.close() def getMasseAstre(self): return flottant.traduit(self.ui.masse_astre.text()) def getDistanceAstre(self): return (flottant.traduit(self.ui.rayon_astre.text()) + flottant.traduit(self.ui.altitude_objet.text()))*1000 #passe en mètres def getVitesse(self): return (flottant.traduit(self.ui.vitesse_tangentielle_objet.text()), flottant.traduit(self.ui.vitesse_normale_objet.text())) def choisi_coordoonees(self,bool): if self.ui.radioButton_Cartesiennes.isChecked()==True : self.ui.label_V1.setText(self.tr("Vitesse selon Ox")) self.ui.label_V2.setText(self.tr("Vitesse selon Oy")) elif self.ui.radioButton_Cartesiennes.isChecked()==False : self.ui.label_V1.setText(self.tr("Vitesse Tangentielle")) self.ui.label_V2.setText(self.tr("Vitesse Normale")) def choisi_astre(self,int): """ choisit un astre parmi la liste disponible, sur la base du texte couramment sélectionné dans le combo @param int non utiliséé """ mt0=astreNom[0][2] rt0=astreNom[0][3] astre=self.ui.astreCombo.currentText() for a in astreNom: if a[0]==astre: self.trajectoire.choisi_astre(a[1]) self.astreCourant=a[1] masse_astre=a[2] rayon_astre=a[3] self.ui.masse_astre.setText(self.tr(masse_astre)) self.ui.rayon_astre.setText(self.tr(rayon_astre)) mt=flottant.traduit(masse_astre)/flottant.traduit(mt0) rt=flottant.traduit(rayon_astre)/flottant.traduit(rt0) mt="%5g" %mt rt="%5g" %rt self.ui.mTerre.setText(self.tr(mt)) self.ui.rTerre.setText(self.tr(rt)) self.ui.auSujetAstre.setText(self.tr(a[4])) self.placeDepart() self.trajectoire.update() return self.debug(0,"Astre inconnu : %s" %astre) pysatellites-2.6/manpage.xml000066400000000000000000000102431353046054600162430ustar00rootroot00000000000000 .
will be generated. You may view the manual page with: nroff -man .
| less'. A typical entry in a Makefile or Makefile.am is: DB2MAN=/usr/share/sgml/docbook/stylesheet/xsl/nwalsh/\ manpages/docbook.xsl XP=xsltproc -''-nonet manpage.1: manpage.dbk $(XP) $(DB2MAN) $< The xsltproc binary is found in the xsltproc package. The XSL files are in docbook-xsl. Please remember that if you create the nroff version in one of the debian/rules file targets (such as build), you will need to include xsltproc and docbook-xsl in your Build-Depends control field. --> Georges"> Khaznadar"> mai 14, 2008"> 1"> georgesk@ofset.org"> PYSATELLITES"> Debian"> GNU"> GPL"> ]>
&dhemail;
2008 &dhusername; &dhdate; &dhucpackage; &dhsection; &dhpackage; simulates the launching of satellites &dhpackage; DESCRIPTION This program can be used to train people to spatial mechanics at an elementary level. You are given the power to launch a satellite, from outside the atmosphere, around a handfull of predefined planets, or around any special object you may imagine. Input the intial velocity vector of the satellite, and you will get the simulated trajectory, as well as some informations like the plots of variation of speed. As an extra, you can compute a movie, which represents the planet seen from the satellite's point of view during its orbital period. OPTIONS Show a short usage description. Sets the debug level, from 0 to 10 (default = 0). Sets the configuration file (default: none) pysatellites-2.6/matplotlib_widget.py000066400000000000000000000047741353046054600202110ustar00rootroot00000000000000# embedding_in_qt4.py --- Simple Qt4 application embedding matplotlib canvases # # Copyright (C) 2005 Florent Rougon # 2006 Darren Dale # # This file is an example program for matplotlib. It may be used and # modified with no restriction; raw copies as well as modified versions # may be distributed without limitation. import sys, os, random from numpy import arange, sin, pi from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas from matplotlib.figure import Figure from PyQt5.QtGui import * from PyQt5.QtWidgets import * from PyQt5.QtCore import * from UI_graphe import Ui_Graphe progname = os.path.basename(sys.argv[0]) progversion = "0.1" class MyMplCanvas(FigureCanvas): """Ultimately, this is a QWidget (as well as a FigureCanvasAgg, etc.).""" def __init__(self, parent, donnees, traitement, dates, width=0, height=0, dpi=100, cliquable=False, titre=""): self.fig = Figure(figsize=(width, height), dpi=dpi ) FigureCanvas.__init__(self, self.fig) self.setParent(parent) FigureCanvas.setSizePolicy( self, QSizePolicy.Expanding, QSizePolicy.Expanding) FigureCanvas.updateGeometry(self) self.axes = self.fig.add_subplot(111) a = self.axes.set_axis_off() # We want the axes cleared every time plot() is called self.axes.axison = False self.axes.axis('off') self.axes._hold=False self.cliquable=cliquable self.donnees=donnees self.traitement=traitement self.dates=dates self.titre=titre self.plot(donnees, traitement, dates) def mouseReleaseEvent(self, event): if self.cliquable: self.fils=QDialog() self.fils.ui=Ui_Graphe() self.fils.ui.setupUi(self.fils) self.fils.setWindowTitle(self.tr(self.titre)) self.fils.show() ratio=2 w=3*ratio h=5*ratio d=90/ratio self.fils.canvas=MyMplCanvas(self.fils.ui.grapheLabel,self.donnees, self.traitement, self.dates, width=w, height=h, dpi=d, cliquable=False, titre=self.titre) self.fils.canvas.show() def sizeHint(self): w, h = self.get_width_height() #print "w, h", w, h return QtCore.QSize(w, h) def minimumSizeHint(self): return QtCore.QSize(10, 10) def plot(self,donnees, traitement, dates): d=[] for dd in donnees: d.append(traitement(dd)) self.axes.plot(dates,d) pysatellites-2.6/methodes.tm000066400000000000000000000143431353046054600162700ustar00rootroot00000000000000 <\body> ||>> Le logiciel pysatellites sert simuler le lancement de satellites autour de diverses plantes. En France, ce logiciel est utilis dans l'enseignement au niveau du lyce. L'lve est invit choisir une plante, ou prciser les paramtres de rayon et de masse qu'il veut, puis il contrle le point de lancment d'un satellite, sa vitesse radiale et sa vitesse orthoradiale. Quand ce choix est fini, il lance la simulation et voit quelle trajectoire le satellite peut alors suivre. La mthode est une mthode de calcul de proche en proche : des intervalles de temps rguliers, la vitesse et la position du satellite connues sont utilises afin de prdire sa position et sa vitesse un intervalle de temps plus tard. On parle d'intgration numrique, car seule la loi locale qui donne la force d'attraction applique au satellite est prise en considration. Un autre mthode serait possible : dans le cas d'un problme un corps plong dans un potentiel newtonien, les quations de la dynamique du satellite admettent des solutions algbriques que l'on sait dterminer. J'ai utilis un document synthtique publi sur Internet, l'adresse\ Ce document rsume ce qu'on peut retenir comme proprit des coniques (ellipses, parabole, hyperboles), et la solution connue du problme un corps dans un potentiel newtonien. On peut l'utiliser pour calculer sans avoir terminer la simulation divers paramtres. L'un d'entre eux est trs important, il s'agit de la priode du mouvement quand l'nergie mcanique > du satellite est ngative, et que celui-ci dcrit une ellipse dans le puits de potentiel de l'astre qui l'attire. On connat la distance du satellite l'astre de masse . On en dduit facilement son nergie potentielle massique, /m=->, o u.s.i.> est la constante universelle de gravitation. Connaissant sa vitesse radiale >|\>> et sa vitesse orthoradiale |\>>, on dduit son nergie cintique massique, /m=>>^2>+(|\>>>)>. Il suffit d'aditionner les nergies pour parvenir l'nergie mcanique massique, /m=-+>>^2>+(|\>>>)>. Plusieurs cas se prsentent alors : <\enumerate-numeric> /m \ 0> : le satellite reste dans le puits de potentiel de l'astre, sa trajectoire est une ellipse, qu'il parcourt avec une priode . /m = 0> : le satellite n'est pas li, il possde tout juste la vitesse de libration, sa trajectoire est une parabole, sa vitesse s'annule l'infini. /m \ 0> : le satellite n'est pas li, sa vitesse l'infini est non nulle, sa trajectoire est hyperbolique. Dans le premier cas seulement, une priode existe pour le mouvement du satellite, et on la calcule ainsi : le grand axe de l'ellipse se dduit de la constante d'attraction ( par la formule +>>^2>+(|\>>>))>>. Connaissant le grand axe de l'ellipse, on peut alors dterminer la priode du mouvement grce la troisime loi de Kepler, =4\/MG*a>, soit >|>>. Quand la priode du mouvement est connue, on peut prendre comme ordre de grandeur de l'intervalle de temps pour l'intgration, un centime de cette priode. a donne des rsultats satisfaisants pour les mouvement d'excentricit faible : c'est dire que la trajectoire apparat facilement comme ferme l'cran, au pixel prs. Dans le cas d'ellipses fortement excentriques, il faut diminuer le l'intervalle de temps utilis pour l'intgration. <\initial> <\collection> <\references> <\collection> > > > > <\auxiliary> <\collection> <\associate|toc> |math-font-series||1Utilit du logiciel \S pysatellites \T> |.>>>>|> |math-font-series||2Mthode utilise pour la simulation> |.>>>>|> |math-font-series||3La mthode d'intgration de Runge-Kutta> |.>>>>|> |math-font-series||4Dtermination de la priode d'un mouvement elliptique> |.>>>>|> pysatellites-2.6/point.py000066400000000000000000000036641353046054600156250ustar00rootroot00000000000000#-*- coding: utf-8 -*- from PyQt5.QtGui import * from PyQt5.QtWidgets import * from PyQt5.QtCore import * class Point(QLabel): def __init__(self, parent, point, color, numero, app, pred=None,type_de_point="petit"): """ Crée un point graphique. Paramètres : parent : widget parent point : coordonnées (de type vecteur) color : couleur numero : numéro à afficher app : l'application qui commande pred : le point prédecesseur type_de_point : un paramètre de style """ QLabel.__init__(self, parent) self.app=app self.point, self.color = point,color #self.setGeometry(QRect(0,0,640,480)) self.setGeometry(QRect(0,0,parent.width(),parent.height())) self.numero=numero self.type_de_point = type_de_point if type_de_point=="petit" : self.largeur=2 elif type_de_point=="gros" : self.largeur=4 else : self.largeur=2 def icone(self,nom): return self.app.rep.fichier("icones",nom) def paintEvent(self,event): self.painter = QPainter() self.painter.begin(self) self.painter.setPen(QColor(self.color)) self.painter.translate(self.point[0], self.point[1]) if self.type_de_point=="boum" : self.image_sat=QPixmap(self.icone("sat_mini_boum.png")) self.painter.drawPixmap(0,0,self.image_sat) elif self.type_de_point=="gros" : self.image_sat=QPixmap(self.icone("sat_mini.png")) self.painter.drawPixmap(0,0,self.image_sat) self.painter.drawLine(-self.largeur,0,self.largeur,0) self.painter.drawLine(0,-self.largeur,0,self.largeur) elif self.type_de_point=="petit" : self.painter.drawLine(-self.largeur,0,self.largeur,0) self.painter.drawLine(0,-self.largeur,0,self.largeur) self.painter.end() pysatellites-2.6/pysat.ui000066400000000000000000000365071353046054600156230ustar00rootroot00000000000000 MainWindow 0 0 1005 690 pySatellite, simulateur de trajectoire plane de satellites 0 0 560 650 true QFrame::Panel QFrame::Raised 3 0 0 245 16777215 QFrame::StyledPanel QFrame::Raised Objet lancé Masse (kg) 100 altitude (km) 1000 Vitesses au départ (m/s) Vx (tangentielle) -4000 Vy (normale) 0 Astre défini Masse (kg) 6*10^24 Rayon (km) 0 0 Astres connus 0 0 100 0 M. terrestres 0 0 100 0 0 0 16777215 46 0 0 R. terrestres Visualiser le satellite chaque ... 3600 temps entre chaque point s Qt::AlignCenter Actions Lancer l'objet Effacer Vidéo 0 0 chaque fois 0 0 170 16777215 Vitesses coord. cartésiennes true repère de frénet false Vitesse selon OX 0 0 101 141 Cliquez pour agrandir QFrame::Box Vitesse selon OY 0 0 101 141 Cliquez pour agrandir QFrame::Box Norme de la vitesse 0 0 101 141 Cliquez pour agrandir QFrame::Box (Cliquez pour agrandir) Button_efface pressed() afficheur clear() 244 579 241 519 pysatellites-2.6/pysatellites000077500000000000000000000001001353046054600165500ustar00rootroot00000000000000#!/bin/sh exec python3 /usr/share/pysatellites/pysatellites.py pysatellites-2.6/pysatellites.1000066400000000000000000000030411353046054600167130ustar00rootroot00000000000000.\" Title: PYSATELLITES .\" Author: .\" Generator: DocBook XSL Stylesheets v1.73.2 .\" Date: mai 14, 2008 .\" Manual: .\" Source: .\" .TH "PYSATELLITES" "1" "mai 14, 2008" "" "" .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .SH "NAME" pysatellites - simulates the launching of satellites .SH "SYNOPSIS" .HP 13 \fBpysatellites\fR [\fB\-d\ \fR\fB\fIdebuglevel\fR\fR] [\fB\-\-debug=\fR\fB\fIdebuglevel\fR\fR] [\fB\-f\ \fR\fB\fIfile\fR\fR] [\fB\-\-fichier=\fR\fB\fIfile\fR\fR] [\fB\-h\ \fR] [\fB\-\-help\fR] .SH "DESCRIPTION" .PP This program can be used to train people to spatial mechanics at an elementary level\. You are given the power to launch a satellite, from outside the atmosphere, around a handfull of predefined planets, or around any special object you may imagine\. Input the intial velocity vector of the satellite, and you will get the simulated trajectory, as well as some informations like the plots of variation of speed\. As an extra, you can compute a movie, which represents the planet seen from the satellite\'s point of view during its orbital period\. .SH "OPTIONS" .PP \fB\-h\fR \fB\-\-help\fR .RS 4 Show a short usage description\. .RE .PP \fB\-d \fR\fB\fIdebuglevel\fR\fR \fB\-\-debug=\fR\fB\fIdebuglevel\fR\fR .RS 4 Sets the debug level, from 0 to 10 (default = 0)\. .RE .PP \fB\-f \fR\fB\fIfile\fR\fR \fB\-\-fichier=\fR\fB\fIfile\fR\fR .RS 4 Sets the configuration file (default: none) .RE .SH "COPYRIGHT" Copyright \(co 2008 Georges Khaznadar .br pysatellites-2.6/pysatellites.desktop000066400000000000000000000004071353046054600202270ustar00rootroot00000000000000[Desktop Entry] Name=pySatellites Comment=Interactive simulator for launching satellites Comment[fr_FR.UTF-8]=Simulateur interactif de lancement de satellites Exec=pysatellites Icon=pysatellites Terminal=false Type=Application Categories=Video;Education;Science; pysatellites-2.6/pysatellites.py000066400000000000000000000053621353046054600172130ustar00rootroot00000000000000licence=""" pysatellites : a program to plot trajectories of satellites Copyright (C) 2007-2008 Jean-Baptiste Butet , (C) 2007-2008 Georges Khaznadar 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, either version 3 of the License, or (at your option) any later version. This program 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 . """ licence_fr=""" pysatellites : un programme pour tracer les trajectoires de satellites Copyright (C) 2007-2008 Jean-Baptiste Butet , (C) 2007-2008 Georges Khaznadar Ce projet est un logiciel libre : vous pouvez le redistribuer, le modifier selon les terme de la GPL (GNU Public License) dans les termes de la Free Software Foundation concernant la version 3 ou plus de la dite licence. Ce programme est fait avec l'espoir qu'il sera utile mais SANS AUCUNE GARANTIE. Lisez la licence pour plus de détails. . """ import sys from PyQt5.QtGui import * from PyQt5.QtWidgets import * from PyQt5.QtCore import * from debug import Debug from mainWindow import StartQT5 def usage(): print ("Usage : pysatellites [-h | --help] [-d n | --debug=n] [-f fichier | --fichier=fichier]") sys.exit(0) def run(): app = QApplication(sys.argv) #translation #locale = QLocale.system().name() #qtTranslator = QTranslator() #if qtTranslator.load("qt_" + locale): # app.installTranslator(qtTranslator) #appTranslator = QTranslator() # if appTranslator.load("lang/pyfocus_" + locale): #app.installTranslator(appTranslator) from getopt import getopt optlist, argv=getopt(sys.argv[1:],"d:f:h",["debug=","fichier=","help"]) debugger=Debug(0) for (cle,val) in optlist: if cle=="-d" or cle=="--debug": debugger=Debug(int(val)) if cle=="-h" or cle=="--help": usage() if cle=="-f" or cle=="--fichier": print ("On ne sait pas encore quoi faire de '%s', la fonctionnalité gouvernée par '%s' reste à implémenter." %(val,cle)) windows = StartQT5(None, debugger=debugger, app=app) windows.show() sys.exit(app.exec_()) if __name__ == "__main__": run() pysatellites-2.6/rectangle_sensible.py000066400000000000000000000061131353046054600203140ustar00rootroot00000000000000# -*- coding: utf-8 -*- from PyQt5.QtGui import * from PyQt5.QtWidgets import * from PyQt5.QtCore import * from debug import Debug class Rs(QWidget): def __init__(self, parent, geometry=None, image=None, text=None, color=QColor("grey"), debuglevel=0, onPress=None, onRelease=None, onDoubleClick=None, onMove=None, debugger=Debug(0)): QWidget.__init__(self,parent) if geometry==None: # le widget recouvrira le parent if parent!=None: self.setGeometry(QRect(0,0,parent.width(),parent.height())) else: self.setGeometry(QRect(0,0,100,100)) else: self.setGeometry(geometry) self.setMouseTracking(True) self.image=image self.text=text self.color=color self.debug=debugger self.onPress=onPress self.onRelease=onRelease self.onDoubleClick=onDoubleClick self.onMove=onMove def mousePressEvent(self,ev): if self.onPress != None: return self.onPress(ev) else: self.debug(9, "event onPress still to implement") def mouseReleaseEvent(self,ev): if self.onRelease != None: return self.onRelease(ev) else: self.debug(9, "event onRelease still to implement") def mouseMoveEvent(self,ev): if self.onMove != None: return self.onMove(ev) else: self.debug(9, "event onMove still to implement ... x=%s, y=%s" %(ev.x(),ev.y())) def mouseDoubleClickEvent(self,ev): if self.onDoubleClick != None: return self.onDoubleClick(ev) else: self.debug(9, "event onDoubleClick still to implement") def paintEvent(self, event): QWidget.paintEvent(self,event) self.painter = QPainter() self.painter.begin(self) if self.color !=None: self.painter.fillRect(QRect(0,0,self.width(),self.height()), self.color) if self.image != None: self.painter.drawImage(0,0,self.image) if self.text != None: self.painter.drawText(0,0,self.text) self.painter.end() class RsImage(Rs): """Une classe dérivée du rectangle sensible Rs, qui contient une image et se place en x,y sur le parent """ def __init__(self, parent, x, y, image, text=None, color=QColor("grey"), onPress=None, onRelease=None, onDoubleClick=None, onMove=None, debugger=Debug(0)): rect=QRect(x,y,image.size().width(), image.size().height()) Rs.__init__(self, parent, rect, image=image, text=None, color=color, onPress=onPress, onRelease=onRelease, onDoubleClick=onDoubleClick, onMove=onMove, debugger=debugger) pysatellites-2.6/repertoire.py000066400000000000000000000017501353046054600166460ustar00rootroot00000000000000# -*- coding: utf-8 -*- import os.path class repertoire: def __init__(self, chemin): self.chemin0=os.path.abspath(chemin) if os.path.isfile(self.chemin0): self.chemin0=os.path.dirname(self.chemin0) def chemin(self,choix="defaut"): if choix=="defaut": return self.chemin0 if choix=="textures": for d in [self.chemin0, "/usr/share/pysatellites"]: if os.path.exists(d+'/images/earth-clouds.jpg'): return d print ("erreur : pas de répertoire des planètes") print ("=== Il manque les textures de Xplanet-images ===") raise(IOError) elif os.path.isdir(os.path.join(self.chemin0,choix)): return os.path.join(self.chemin0,choix) else: raise(IOError) def fichier(self,*elementsDeChemin): f=self.chemin0 for e in elementsDeChemin: f=os.path.join(f,e) return f pysatellites-2.6/traj_satellite.py000066400000000000000000000370501353046054600174760ustar00rootroot00000000000000# -*- coding: utf-8 -*- # Résolution numérique d'un problème à un corps soumis à un # potentiel newtonien (en 1/r^2) # d'équa. diff. vec{r}'' = -k/m vec{r}/r^3 # le vecteur de données considéré sera le vecteur (x, y , vx, vy) # dont la dérivée est (vx, vy, -k/m*x/(x^2+y^2)^3/2, -k/m*y/(x^2+y^2)^3/2) from numpy import * from pylab import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * from PyQt5.QtCore import * from point import Point import os, tempfile, time from matplotlib_widget import MyMplCanvas import flottant as flottant from rectangle_sensible import Rs from debug import Debug def rk4(derivs, y0, t): """ C'est le code de rk4 pris dans le module matplotplib. Liste des paramètres d'entrée derivs : une fonction qui accepte en entrée un 6-uplet position,vitesse et le papramètre temps, et qui renvoie en sortie un 6-uplet de dérivées. y0 : un 6-uplet représentant la position et la vitesse initiales t : une liste de dates régulièrement espacées pour lesquelles on veut construire les points et vitessesde la trajectoire Résultat de la fonction : une liste de 6-uplets représentant les positions et vitesses aux instants de la liste des dates données. """ Float=0.0 try: Ny = len(y0) except TypeError: yout = zeros( (len(t),), float) else: yout = zeros( (len(t), Ny), float) yout[0] = y0 i = 0 for i in arange(len(t)-1): thist = t[i] dt = t[i+1] - thist dt2 = dt/2.0 y0 = yout[i] k1 = asarray(derivs(y0, thist)) k2 = asarray(derivs(y0 + dt2*k1, thist+dt2)) k3 = asarray(derivs(y0 + dt2*k2, thist+dt2)) k4 = asarray(derivs(y0 + dt*k3, thist+dt)) yout[i+1] = y0 + dt/6.0*(k1 + 2*k2 + 2*k3 + k4) return yout def euler(derivs, y0, t): """ C'est le code de la méthode d'Euler, qui est d'ordre 1 et très simple. Liste des paramètres d'entrée derivs : une fonction qui accepte en entrée un 6-uplet position,vitesse et le papramètre temps, et qui renvoie en sortie un 6-uplet de dérivées. y0 : un 6-uplet représentant la position et la vitesse initiales t : une liste de dates régulièrement espacées pour lesquelles on veut construire les points et vitessesde la trajectoire Résultat de la fonction : une liste de 6-uplets représentant les positions et vitesses aux instants de la liste des dates données. """ try: Ny = len(y0) except TypeError: yout = zeros( (len(t),), Float) else: yout = zeros( (len(t), Ny), Float) yout[0] = y0 i = 0 for i in arange(len(t)-1): thist = t[i] dt = t[i+1] - thist y0 = yout[i] k1 = asarray(derivs(y0, thist)) yout[i+1] = y0 + dt*k1 return yout def nouvChampGrav(x0,m): """Cette fonction renvoie une fonction anonyme représentant un champ gravitationnel créé par un objet de masse m immobile aux coordonnées spécifiées par x0. le profil de la fonction résultat est : (vecteur position -> vecteur accélération) """ return lambda x: (-6.67e-11*m*(x[0]-x0[0])/((x[0]-x0[0])**2+(x[1]-x0[1])**2+(x[2]-x0[2])**2)**1.5, -6.67e-11*m*(x[1]-x0[1])/((x[0]-x0[0])**2+(x[1]-x0[1])**2+(x[2]-x0[2])**2)**1.5, -6.67e-11*m*(x[2]-x0[2])/((x[0]-x0[0])**2+(x[1]-x0[1])**2+(x[2]-x0[2])**2)**(1.5)) class trajectoire(QObject): def __init__(self,dt,t,y0, champ): """Les paramètres sont : dt : intervalle de temps t : durée totale de la simulation y0 : vecteur à 6 composantes (position, vitesse initiales) champ : une fonction donnant l'accélération à partir de la position """ QObject.__init__(self) self.dt = dt self.t = arange(0,t,self.dt) self.y0 = y0 self.champ=champ self.calcul() def dessine(self): x=[] y=[] for point in self.pv : x.append(point[0]) y.append(point[1]) self.x = x self.y = y plot(self.x,self.y) # le dessin est en projection dans le plan x,y axis('equal') show() def derivs(self,x,t): """calcul de la dérivée du vecteur à 6 composantes position,vitesse """ g = self.champ(x[0:3]) # le champ de gravité return (x[3], # vitesse x x[4], # vitesse y x[5], # vitesse z g[0], # acceleration x g[1], # acceleration y g[2]) # acceleration z def calcul(self): """lance le calcul de la trajectoire à l'aide de l'algorithme de Runge-Kutta qui est d'ordre 4 et rapide en même temps. le résultat est dans self.pv, qui est une liste contenant les 6-uplets position, vitesse. """ self.pv = rk4(self.derivs, self.y0, self.t) def calculeNorme(nuplet): s=0 for x in nuplet: s+=x**2 return s**0.5 def projection(n): if n >=0: return lambda nuplet:nuplet[n] else: return 0.0 class Trajectoire(Rs): def __init__(self, parent, rayon_astre, mainWin, debugger=Debug(0)): Rs.__init__(self, parent, debugger=debugger) self.parent = parent self.mainWin=mainWin self.milieuX=self.width()/2 self.milieuY=self.height()/2 self.rep= mainWin.rep #self.setFrameShape(QFrame.Box) self.setEchelle(6.4e6/25) self.points={} self.planetes={} self.vitesse=[] self.date=[] self.dt=1 self.widget_vit_norm=None self.widget_vitx=None self.widget_vity=None self.boum=-1.0 self.traj=None def setEchelle(self,val, mode="mppx"): """ Régle l'échelle, selon le mode choisi. mode=mppx : échelle en mètre par pixel mode=max : l'échelle sera ajustée pour que le point (0,val) soit dans la fenêtre de trajectoire (à 95% du maximum) """ if mode=="mppx": self.echelle=val self.debug(9,"Échelle %s px/m (mode direct)" %self.echelle) elif mode=="max": self.echelle=val/self.milieuY/0.95 self.debug(9,"%s m pour %s px" %(val,self.milieuY)) self.debug(9,"Échelle %s px/m (mode max)" %self.echelle) else: self.debug(0,"Le mode %s ne convient pas pour setEchelle()" %mode) def lance(self): self.calcul_parametre() if self.mainWin.ui.checkBox_efface.isChecked() : self.efface() self.debug(10,"efface la trajectoire depuis un lancé") a=time.time() self.traj= trajectoire(self.dt, self.t, self.pos+self.vit, self.gAstre) self.debug(8, "%s, %s, %s, %s" %(self.dt, self.t, self.pos+self.vit, self.gAstre)) self.debug(5,"calcul en %s secondes" %(time.time()-a)) self.dessine_trajectoire() #dessine les vitesses self.grapheV() def grapheV(self): if self.widget_vit_norm != None: self.widget_vit_norm.hide() if self.widget_vitx != None: self.widget_vitx.hide() if self.widget_vity != None: self.widget_vity.hide() self.widget_vit_norme = MyMplCanvas(self.mainWin.ui.label_vit_norm,self.vitesse, calculeNorme, self.date, width=3, height=5, dpi=30, cliquable=True, titre="Norme de la vitesse") self.widget_vitx = MyMplCanvas(self.mainWin.ui.label_vitx,self.vitesse, projection(0), self.date, width=3, height=5, dpi=30, cliquable=True, titre="Abscisse de la vitesse") self.widget_vity = MyMplCanvas(self.mainWin.ui.label_vity,self.vitesse, projection(1), self.date, width=3, height=5, dpi=30, cliquable=True, titre="Ordonnée de la vitesse") self.widget_vit_norme.show() self.widget_vitx.show() self.widget_vity.show() def calcul_parametre(self): self.masse_astre = self.mainWin.getMasseAstre() self.distance_astre = self.mainWin.getDistanceAstre() self.vitesse_x,self.vitesse_y = self.mainWin.getVitesse() self.G=6.67259e-11 #calcul des énergies massiques (cinétique, potentielle, mécanique) Ec_massique=0.5*(self.vitesse_x**2+self.vitesse_y**2) Ep_massique=-self.masse_astre*self.G/self.distance_astre Em_massique=Ec_massique+Ep_massique if Em_massique >= 0: self.debug(1,"L'énergie mécanique est excessive (%s J/kg), la trajectoire ne se fermera pas" %Em_massique) t=self.tr("Ce n'est pas un satellite") q=self.tr("L'énergie mécanique initiale est positive, l'objet lancé échappera à l'attraction de l'astre. Voulez-vous tracer une partie de la trajectoire ?") ret=QMessageBox.question (self, t, q) if ret==QMessageBox.Yes: self.t=30*(self.distance_astre**3/self.masse_astre/self.G)**0.5 self.dt=self.t/100 else: raise(ValueError) else: # calcul du grand axe a : Em = -k/2a pour une trajectoire elliptique # donc a = -k/2Em a = - self.masse_astre*self.G/2/Em_massique # calcul de la période, en utilisant la troisième loi de Kepler # T²=4pi²/MG*a³ self.t = 2*pi*(a**3/self.masse_astre/self.G)**0.5 self.dt = self.t/1000 self.debug(5,"masse astre %s" %self.masse_astre) self.gAstre = nouvChampGrav((0,0,0),self.masse_astre) self.pos = (0.0, self.distance_astre, 0) self.vit = (self.vitesse_x,self.vitesse_y,0.0) def dessine_trajectoire(self): self.debug(9,"dessine la trajectoire") self.dessine(self.traj.pv) # on teste si toute la trajectoire tien bien là. r=self.maxDistance(self.traj.pv) if not self.surementVisible(r) and not self.boum > 0: t=self.tr("Changement d'échelle") q=self.tr("Un dépassement a été détecté. Voulez-vous changer d'échelle ?") ret=QMessageBox.question (self, t, q) if ret==QMessageBox.Yes: self.setEchelle(r,"max") self.efface() self.dessine(self.traj.pv) def maxDistance(self,points_vitesses): """renvoie la distance max entre le centre et le satellite en projection sur le plan xy. """ r=0 for pv in points_vitesses: if fabs(pv[0])>r: r=fabs(pv[0]) if fabs(pv[1])>r: r=fabs(pv[1]) return r def surementVisible(self,r): """vrai si un cercle de rayon r est visible à coup sûr""" return r/self.echelle < self.milieuY def efface(self): for k in self.points.keys(): objet=self.points[k] objet.hide() objet.clear() self.points = {} self.vitesse = [] def trace_point(self, x, y, couleur, type="petit", tau=None): if tau: cle=(x,y,tau) else: cle=(x,y) if cle in self.points.keys(): # efface des points préexistants de même emplacement objet=self.points[cle] objet.hide() objet.clear() self.points[cle]=Point(self, (x,y), couleur, "", self.mainWin,type_de_point=type) self.points[cle].show() def dessine(self,points_vitesses): self.boum=-1.0 OKtau=False intervalle=self.mainWin.ui.intervale.text() self.tau = int(flottant.traduit(intervalle)) if self.tau > 60: OKtau=True self.vitesse = [] self.date=[] tau_entier = 0 for i in range(0,len(points_vitesses),10): # on ne trace qu'un point sur 10, soit 100 points # sur les 1000 calculés pv=points_vitesses[i] pix_x=int(pv[0]/self.echelle+self.milieuX) pix_y=int(-pv[1]/self.echelle+self.milieuY) # pv est un hexuplet : 3 coordonnées de position, 3 de vitesse self.vitesse.append((pv[3],pv[4])) self.date.append(self.dt*i) if ((pix_x-self.milieuX)**2+(pix_y-self.milieuY)**2)**(0.5) < int(self.mainWin.getRayonAstre()/self.echelle) : self.trace_point(pix_x, pix_y, "red", type="boum") self.boum=self.dt*i break else: self.trace_point(pix_x, pix_y, "red") if OKtau: try : #dessine un point tous les "tau" secondes si défini. tau = i*self.dt/self.tau if int(tau) > int(tau_entier) : self.trace_point(pix_x, pix_y, "blue", type="gros", tau=tau) tau_entier=int(tau) except AttributeError: pass self.repaint() self.update() def paintEvent(self, event): painter = QPainter() painter.begin(self) painter.setBrush(Qt.CrossPattern) painter.setPen(Qt.green) rayon=int(self.mainWin.getRayonAstre()/self.echelle) painter.drawLine(self.milieuX, 0, self.milieuX, self.milieuY*2) painter.drawLine(0,self.milieuY , 2*self.milieuX, self.milieuY) img=self.astreImg sourcerect=QRect(0,0,512,512) self.milieuX=self.size().width()/2 self.milieuY=self.size().height()/2 targetrect=QRect(self.milieuX-rayon,self.milieuY-rayon,2*rayon,2*rayon) #TODO : il faudrait redessiner le rectangle en fonction de l'échelle #TODO : la taille n'est pas bien calculée quand on redimensionne !!! painter.drawEllipse(targetrect) painter.drawImage(targetrect,img,sourcerect) painter.end() def dir(self,choix): return self.rep.chemin(choix) def debug(self,level,msg): self.mainWin.debug(level,msg) def getPlanete(self,nom): if nom not in self.planetes.keys(): handle, imageFile = tempfile.mkstemp(".png") os.close(handle) cmd="xplanet -latitude 90 -num_times 1 -glare 10 -body %s -radius 50 -searchdir %s -transpng %s -rotate -70" %(nom,self.dir("textures"),imageFile) # la rotation de -70° permet au méridiens français de se trouver # au centre de l'image. Cette valeur est empirique et dépend # probablement de l'implémentation de Xplanet. Il n'est pas # évident de jouer avec l'option -north qui seule permet de # contrôler totalement l'orientation de l'image. self.debug(8,"Création de l'image de planète par \"%s\"" %cmd) os.system(cmd) self.planetes[nom]=QImage(imageFile) os.system("rm -f %s" %imageFile) return self.planetes[nom] def choisi_astre(self,nom): self.astreImg= self.getPlanete(nom) class Satellite(QLabel): def __init__(self, parent, coord_sat, image): QLabel.__init__(self, parent) self.parent = parent self.coord_sat=coord_sat self.image = image def paintEvent(self, event): painter = QPainter() painter.setBrush(Qt.CrossPattern) painter.setPen(Qt.green) painter.begin(self) x, y = self.coord_sat.x(), self.coord_sat.y() self.debug(5,"%s,%s" %(x,y)) painter.drawEllipse(x,y,30,16) painter.drawPixmap(self.coord_sat, self.image) painter.end() pysatellites-2.6/video.py000066400000000000000000000066111353046054600155750ustar00rootroot00000000000000# -*- coding: utf-8 -*- """ video.py est un module permettant de faire un fichier video à partir d'un tableau de positions-vitesses tel que pysatellite peut le réaliser. """ import math, datetime, tempfile, os.path, os from astres import Astre from PyQt5.QtGui import * from PyQt5.QtWidgets import * from threading import * from debug import Debug import flottant as flottant class Cinema(Thread): def __init__(self,repertoire, astre, dateorigine, liste_temps, liste_pos, geometrie, pas=1, nettoie=True, boum=-1.0, debugger=Debug(0)): Thread.__init__(self) self.repertoire=repertoire self.astre=astre self.dateorigine=dateorigine self.liste_temps=liste_temps self.liste_pos=liste_pos self.geometrie=geometrie self.pas=pas self.nettoie=nettoie self.boum=boum self.dir=tempfile.mkdtemp("","pysat") self.fini=False self.nbImage=0 self.debug=debugger def run(self): self.video() os.system("vlc --loop %s > /dev/null 2>&1" %os.path.join(self.dir,"out.avi")) if self.nettoie: os.system("rm -r %s" %self.dir) def video(self): self.images() cmd="ffmpeg -r 25 -f image2 -i %s -f avi -vcodec mpeg1video -b 800k %s > /dev/null 2>&1" %(os.path.join(self.dir, "%04d.jpg"), os.path.join(self.dir, "out.avi")) os.system(cmd) def images(self): listenum= range(0, len(self.liste_temps), self.pas) for i in listenum: if self.fini: return temps=self.liste_temps[i] if self.boum > 0 and temps > self.boum: self.imageCrash(self.nbImage) self.fini=True return x=self.liste_pos[i][0] y=self.liste_pos[i][1] z=self.liste_pos[i][2] cmd=self.xplanetCmd(temps, x, y, z, os.path.join(self.dir, "%04d.jpg" %self.nbImage)) os.system(cmd) self.nbImage+=1 def imageCrash(self,num): for n in range(20): nomfichier=os.path.join(self.dir, "%04d.jpg" %(num+n)) (w,h)=self.geometrie.split("x") img=QImage(int(w), int(h), QImage.Format_RGB32) img.fill(QColor("red").rgb()) img.save(nomfichier) def xplanetCmd(self,temps, x, y, z, nomfichier): """ dateorigine est un objet datetime fixe, temps est une durée en seconde """ a=Astre(self.astre) td=datetime.timedelta(seconds=temps) date=self.dateorigine+td dateXplanet=date.strftime("%Y%m%d.%H%M%S") rayon=1.0*(x**2+y**2+z**2)**0.5 range=rayon/a.rayon if range > 1.0: radius=100*math.asin(1.0/range) else: radius=9000 longitude0=360.0*temps/(24*3600*flottant.traduit(a.rotationSiderale)) longitude=180/math.pi*math.atan2(y,x)-90 latitude=180/math.pi*math.atan2(z,(x**2+y**2)**0.5) cmd="xplanet -date %s -radius %s -num_times 1 -output '%s' -geometry %s -origin %s -range %s -longitude %s -latitude %s -starmap BSC -searchdir %s -body %s -label >/dev/null 2>&1" %(dateXplanet, radius, nomfichier, self.geometrie, self.astre, range, int(a.flip)*(longitude-longitude0), latitude, self.repertoire.chemin("textures"), self.astre) self.debug(4,u"Lancemende de «%s»" %cmd) return cmd