Changing color of points plotted with scatterm

Question

McKenzie Mandich 2018-11-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/427383-changing-color-of-points-plotted-with-scatterm

回答： Amy Haskins 2018-11-1

Hi all,

I am trying to plot 11 coordinates on a map and have each point be a different colour (the colours will correspond to nutrient depth profiles I've created). However, when I try to use scatterm to put the coordinates on the map, they simply don't show up. I don't get an error message. This is my code:

worldmap([43 50],[-65 -55]);

Lon = [-59.7835 -59.5573 -56.8097 -56.4387 -55.86887 -55.86718 -55.83538 ... -55.83361 -55.79864 -55.814 -63.3175];

Lat = [47.2708 47.432 44.8472 44.9195 44.92462 44.88346 44.82992 44.78269 ... 44.25512 43.73742 44.2675];

c = [1 1 0; 1 0 1; 0 1 1; 1 0 0; 0 1 0; 0 0 1; 1 1 1; 0 0 0; 1 0.4 0.6; ... 0.6 0.6 0.6; 0.7 0.1 0.1];

LandArea=geoshow('landareas.shp','FaceColor',[0.6 0.6 0.6]);

scatterm(Lat,Lon,2,c,'filled');

scaleruler on;

setm(handlem('scaleruler'),... 'MajorTick',0:100:200);

Previously I had labelled each coordinate with the site name using textm and this showed up fine. I also tried writing "c" as a color name but this did not work either. Matlab says c should be a vector or a three-column matrix of RGB triplets

Where am I going wrong/how can I make my coordinates show up with different colours?

Thank you!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Amy Haskins 2018-11-1

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/427383-changing-color-of-points-plotted-with-scatterm#answer_344616

It looks like the size is too small for the markers to be visible. I changed 2 to 25 in the line below leaving the rest of your code alone and I can see the markers.

scatterm(Lat,Lon,25,c,'filled');