MATLAB: How to apply tranparency in some parts of figure

[transparency] [m_map] [alpha]

I am try to make a figure using m_map. I want to apply transparency just in "m_gshhs_h", but I can not.
I tried these and it did not work:
a = m_gshhs_h ('patch', [.7 .7 .7], 'edgecolor', 'k'); alpha (a, 0.5)% error
m_gshhs_h ('patch', [.7 .7 .7], 'edgecolor', 'k', 'alpha');% error
m_gshhs_h ('patch', [.7 .7 .7], 'edgecolor', 'k'); Alpha (0.5)% that all figure makes transparency
Please, does anyone have any idea how to help me?

Best Answer

'FaceAlpha', alphaVal
is the property, value pair you want for a patch. I don't know m_map, but
m_gshhs_h ('patch', [.7 .7 .7], 'edgecolor', 'k', 'FaceAlpha', 0.5)
ought to work.
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