#176 opacity does not work correctly

[Marianne Diem]

Trying to draw a shaded triangle with TikZ:

\usepackage{tikz}
\coordinate[] (A) at (0,0);
\coordinate[] (B) at (2,0);
\coordinate[] (C) at (2,1);
\fillpurple, opacity = 0.5--(B)--(C)--cycle;

The triangle changes its location by the value of opacity (here 0.5) in the x and by - value of opacity (here -0.5) in y-direction.

[Roland Baudin]

Hi, your LaTeX code snippet seems incomplete or wrong... Could you post the correct code?
Thanks.

[Marianne Diem]

\begin{tikzpicture}
\draw[](0,0)--(3,0)--(3,1)--cycle;
\fill[red](0,0)--(3,0)--(3,1)--cycle; %%%appears correctly
\fill[blue, transparent](0,0)--(3,0)--(3,1)--cycle;%%% does not appear at all
\fill[purple, opacity = 0.5](0,0)--(3,0)--(3,1)--cycle;%%% appears in a shifted position
\end{tikzpicture}

[Roland Baudin]

OK, I see: to fix a problem with dashed lines appearing as solid lines when using tikz, I apply a workaround (export to EMF instead of SVG). But this workaround does not work in your case and the rendered image is corrupted.

An easy fix is to add the line:
fixDashedLines = FALSE
at line 630 of the TexMathsTools module (in function ImportGraphicIntoClipboard).

However, you will have solid dashed lines when using tikz...

For now, I cannot offer a complete solution to the problems encountered with the tikz package.

Sorry about that.