This is a crosspost to: http://tex.stackexchange.com/questions/ ... ositioning
Added german crosspost: http://texwelt.de/wissen/fragen/12291/3 ... umlaufbahn
The link to the overleaf (writelatex) section, I dont know if anybody can open it but here it is. https://www.overleaf.com/2433347sbhpck#/6330259/
Now to the actual problem:<br>
The issue is the use of the path command referring to a former defined plane. The coordinates of the blue and black dots work on the blue and green track. <br>
The orange dots are not on the plane they are supposed to, they should be on the red lines, where the O and o is, so please could someone help me find out what I am missing.
Code: Select all
\documentclass{article}
\usepackage{tikz, tikz-3dplot}
\usetikzlibrary{calc,fadings,decorations.pathreplacing}
%% helper macros
\newcommand{\pgfmathsinandcos}[3]{%
\pgfmathsetmacro#1{sin(#3)}%
\pgfmathsetmacro#2{cos(#3)}%
}
\newcommand{\LongitudePlane}[3][current plane]{%
\pgfmathsinandcos\sinEl\cosEl{#2} % elevation
\pgfmathsinandcos\sint\cost{#3} % azimuth
\tikzset{#1/.style={cm={\cost,\sint*\sinEl,0,\cosEl,(0,0)}}}
}
\newcommand{\LatitudePlane}[3][current plane]{%
\pgfmathsinandcos\sinEl\cosEl{#2} % elevation
\pgfmathsinandcos\sint\cost{#3} % latitude
\pgfmathsetmacro\yshift{\cosEl*\sint}
\tikzset{#1/.style={cm={\cost,0,0,\cost*\sinEl,(0,\yshift)}}} %
}
\newcommand{\OrbitPlane}[3][current plane]{%
\pgfmathsinandcos\sinEl\cosEl{#2} % elevation
\pgfmathsinandcos\sint\cost{#3} % azimuth
\tikzset{#1/.style={cm={\cost,\sint*\sinEl,0,\cosEl,(0,0)}}}
}
\newcommand{\DrawLongitudeCircle}[2][1]{
\LongitudePlane{\angEl}{#2}
\tikzset{current plane/.prefix style={scale=#1}}
% angle of "visibility"
\pgfmathsetmacro\angVis{atan(sin(#2)*cos(\angEl)/sin(\angEl))} %
\draw[current plane] (\angVis:1) arc (\angVis:\angVis+180:1);
\draw[current plane,dashed] (\angVis-180:1) arc (\angVis-180:\angVis:1);
}
\newcommand{\DrawLatitudeCircle}[2][1]{
\LatitudePlane{\angEl}{#2}
\tikzset{current plane/.prefix style={scale=#1}}
\pgfmathsetmacro\sinVis{sin(#2)/cos(#2)*sin(\angEl)/cos(\angEl)}
% angle of "visibility"
\pgfmathsetmacro\angVis{asin(min(1,max(\sinVis,-1)))}
\draw[current plane] (\angVis:1) arc (\angVis:-\angVis-180:1);
\draw[current plane,dashed] (180-\angVis:1) arc (180-\angVis:\angVis:1);
}
\newcommand{\DrawOrbitCircle}[2][1]{
\OrbitPlane{\angEl-8}{#2} % orbit kippen!!!
\tikzset{current plane/.prefix style={scale=#1}}
% angle of "visibility"
\pgfmathsetmacro\angVis{atan(sin(#2)*cos(\angEl)/sin(\angEl))} %
% original
\draw[current plane] (\angVis:1) arc (\angVis:\angVis+180:1); % sichtbarkeit des vor der kugel befindlichen bereichs
\draw[current plane,dashed] (\angVis-180:1) arc (\angVis-180:\angVis:1);
} % achtung unten auch eine winkeländerung !!!???
%% document-wide tikz options and styles
\tikzset{%
>=latex, % option for nice arrows
inner sep=0pt,%
outer sep=2pt,%
mark coordinate/.style={inner sep=0pt,outer sep=0pt,minimum size=3pt,fill=black,circle}%
}
\begin{document}
\begin{tikzpicture}
%% some definitions
\def\R{4} % sphere radius
\def\rr{5} % orbit radius?
\def\angEl{35} % elevation angle
\def\angAz{-105} % azimuth angle
\def\angPhi{-40} % longitude of point P
\def\angBeta{25} % latitude of point P
%######################################################################
%% working planes
\pgfmathsetmacro\H{\R*cos(\angEl)} % distance to north pole
\tikzset{xyplane/.style={cm={cos(\angAz),sin(\angAz)*sin(\angEl),-sin(\angAz),cos(\angAz)*sin(\angEl),(0,-\H)}}}
\LongitudePlane[xzplane]{\angEl}{\angAz}
\LongitudePlane[pzplane]{\angEl}{\angPhi}
\LongitudePlane[yzplane]{\angEl}{\angAz+90}
\LatitudePlane[equator]{\angEl}{0}
\OrbitPlane[orbplanetwo]{\angEl-8}{\angAz} % dem orbit oben und unten winkel anpassen
\OrbitPlane[orbplane]{\angEl-8}{\angAz+60} % dem orbit oben und unten winkel anpassen
%######################################################################
%% draw xyplane and sphere
\fill[ball color=white!50!gray] (0,0) circle (\R); % 3D lighting effect
\draw[white] (0,0) circle (\R);
%% characteristic points
\path[orbplane] (\angBeta+10:\R/1) coordinate[mark coordinate,color=black] (P1); % works fine
\path[orbplane] (\angBeta+10:\rr/1) coordinate[mark coordinate,color=blue] (P2); % works fine
%#############################-problem-#########################################
\path[orbplanetwo] (\angPhi+50:\R/1) coordinate[mark coordinate,color=orange] (A1); % not at the expected position ???
\path[orbplanetwo] (\angBeta:\rr/1) coordinate[mark coordinate,color=orange] (A2); % not at the expected position ???
%##-wanted position of the orange dots-#####
\node at (-0.93,0) {o};
\node at (-1.15,0.05) {O};
%######################################################################
% Äquator, Orbit, Subspur etc.
%% draw meridians and latitude circles
\DrawLatitudeCircle[\R,yellow]{0} % equator
\DrawOrbitCircle[\rr,cyan]{\angAz+60} % orbit plane drehen !!!
\DrawOrbitCircle[\R,green]{\angAz+60} % orbit subspur !!!
\DrawOrbitCircle[\rr,red]{\angAz} % orbit plane drehen !!!
\DrawOrbitCircle[\R,red]{\angAz} % orbit subspur !!!
\end{tikzpicture}
\end{document}
I would prefer to use the angles to set the coordinates, as I need them for some other stuff. Thanks for your help.
I transferred the solution for easy reading also to here, with link to Tonio's profile, the link to the answer was already given by you above.