How to increase number of colors in colorbar, and how to draw boundaries of regions?

Question

Arvind Ganesh 2018-11-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/430047-how-to-increase-number-of-colors-in-colorbar-and-how-to-draw-boundaries-of-regions

回答： Adam 2018-11-15

在 MATLAB Online 中打开

I have this scatterplot, obtained through this command.

scatter(longitude,latitude,15,VR1,'filled');colorbar;

The blue regions are not very visible. How can I make the regions more distinguishable? One way to do that is by increasing the number of colors to include red, purple, etc and their finer shades. Is this possible?

Another way would be to find and mark the boundary of the different regions. How can I do that?

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

Adam 2018-11-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/430047-how-to-increase-number-of-colors-in-colorbar-and-how-to-draw-boundaries-of-regions#answer_347116

在 MATLAB Online 中打开

doc colormap

allows you to change the colourmap that is used. You can either choose from already created Matlab colourmaps or define your own n*3 array of colours.

doc caxis

allows you to change the colour compression (essentially how the data maps onto the given colourmap)