# Two questions (Modifying Ticks and VectorGraphics)

Say

x0[u_, v_, a_, b_, c_] := a* Cos[u]*Sin[v]
y0[u_, v_, a_, b_, c_] := b* Sin[u]*Sin[v]
z0[u_, v_, a_, b_, c_] := c*Cos[v]


I take a parametric plot by

 ParametricPlot3D[{x0[u, v, 10, 3, 2], y0[u, v, 10, 3, 2],
z0[u, v, 10, 3, 2]}, {u, 0, 2 \[Pi]}, {v, 0, \[Pi]}, Mesh -> False,
PlotPoints -> 100,
ColorFunction ->
Function[{x, y, z}, Evaluate[ColorData["Rainbow"][x]]],
ColorFunctionScaling -> True, AxesLabel -> {"x", "y", "z"},
AxesLabel -> {"x", "y", "z"}, ImageSize -> 600, PlotPoints -> 100,
Ticks -> {Automatic, {{-2, "-2"}, {-1, " "}, {0, " 0"}, {1, " "}, {2,
"2"}}, {{-2, "-2"}, {-1, " "}, {0, " 0"}, {1, " "}, {2, "2"}}}]


First Question How is it possible to modify the ticks in positions -1,1 (of y and z-axis) giving them the appearance of minor ticks?

Second Question How I can export the graphic in full Vector Graphic format manageable from, e.g., InkScape?

Thanks and Happy new year!

• the second part of your questions hasn't been answered but Inscape uses SVG or PDF right? The Export docs will have some examples. Commented Jan 9, 2016 at 0:05

x0[u_, v_, a_, b_, c_] := a*Cos[u]*Sin[v]
y0[u_, v_, a_, b_, c_] := b*Sin[u]*Sin[v]
z0[u_, v_, a_, b_, c_] := c*Cos[v]

mTick = {0, -0.0035};

ParametricPlot3D[{x0[u, v, 10, 3, 2], y0[u, v, 10, 3, 2],
z0[u, v, 10, 3, 2]}, {u, 0, 2 \[Pi]}, {v, 0, \[Pi]},
Mesh -> False, PlotPoints -> 100,
ColorFunction -> Function[{x, y, z}, Evaluate[ColorData["Rainbow"][x]]],
ColorFunctionScaling -> True, AxesLabel -> {"x", "y", "z"},
AxesLabel -> {"x", "y", "z"}, ImageSize -> 600, PlotPoints -> 100,
Ticks -> {Automatic, {{-2, "-2"}, {-1, " ", #}, {0, " 0"}, {1,
" ", #}, {2, "2"}}, {{-2, "-2"}, {-1, " ", #}, {0, " 0"}, {1,
" ", #}, {2, "2"}}}] &@mTick


mt = {0, -0.0025};

ParametricPlot3D[
{x0[u, v, 10, 3, 2], y0[u, v, 10, 3, 2], z0[u, v, 10, 3, 2]},
{u, 0, 2 \[Pi]}, {v, 0, \[Pi]},
Mesh -> False,
ColorFunction -> (ColorData["Rainbow"][#1] &),
AxesLabel -> {"x", "y", "z"},
ImageSize -> 600,
Ticks -> {Automatic, {-2, {-1, , mt}, 0, {1, , mt}, 2}, {-2, {-1, , mt}, 0, {1, , mt}, 2}}]